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Shard London Bridge Plus Umfolozi Resort, South Africa Botswana International University of Science & Technology, Botswana Engineered Wood Flooring Wind Powered Generators

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MAGAZINE CONTENT

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May 2011, Volume 22 No. 4

Personality Arch. Steven Wandera Oundo Chairman Architectural Association of Kenya

June Cover Story

REGULARS The Site Board News New Products Association News Events

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Cover Story Shard London Bridge (London)

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International Project Worlds Tallest Megashor Tower ( Balboa, Spain)

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GUEST Dr Ambwene Mwakyusa

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PERSONALITY Architect Steven Oundo

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Ohorongo Cement: The only Cement factory in Namibia Ohorongo Cement operates the only cement factory in Namibia. The Ohorongo Cement Plant is located on Farm Sargberg near Otavi in the Otjozondjupa Region.

Construction Review is published eleven times a year and is circulated to members of relevant associations, governmental bodies and other personnel in the building and construction industry as well as suppliers of equipment, materials and services in Africa, the Middle and Far East. The editor welcomes articles and photographs for consideration. Material may not be reproduced without prior permission from the publisher.

The publisher does not accept responsibility for the accuracy or authenticity of advertisements or contributions contained in the journal. Views expressed by contributors are not necessarily those of the publisher.

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PICTORIAL Engineering Focus Week Aga Khan Award for Architecture 2010 SUPPLEMENTS Engineered Wood Flooring Wind Powered Turbines

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15 20

Hydropower In Uganda And Issues To Consider Power is a major requirement for the modern era and its demand is very high for industrial development and domestic use.

Uganda, as a developing country, continues to be one of the states where hydropower will play a great role in the future. In economic development, hydropower boosts industries and energy exports.

PROJECTS Umfolozi Resort: Empangeni’s Ultimate Destination

30

Kraaifontein Waste Management Facilities

32

Sasol Infrachem

34

Worcester Regional Hospital

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Mathematics and Science thrust the economy

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Index

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40

Future Towers The Future Towers project introduces lost qualities to mass housing: increased density combined with amenities, public facilities, parks and a mix of inhabitants resulting in a vertical city of Maharashtra, India.

May 2011

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MANAGING EDITOR Robert Barnes

The Site Board

EDITOR Lucy Njogu

High inflation threaten economic gains

COUNTRY EDITORS Kenya - Francis Makari South Africa - Jasin Maddox Uganda - Irene Kabuzire

The recent surge in oil prices due partially to the political instability in Northern Africa and the Middle East is threatening to derail economic achievements made in the wake of the global economic crisis in Africa as a whole. Impressive growth estimates will have to be reviewed downwards as the reality of the effects of high consumer prices sets in.

WRITERS Lisa Kamau, Peace Muchiri, Irene Kabuzire, Ann Kariuki, Lindsay Wagner, Elaine Young, Jacqueline van Staden CHIEF DESIGNER Simon Muhia WEB / GRAPHIC DESIGN Augustine Ombwa

The construction industry is not immune to the price shocks occasioned by unstable currency exchange rates and this coupled with the threats of higher borrowing rates as central banks in the continent position themselves to slay the inflation dragon is going to be a formidable road block.

ADVERTISING EXECUTIVES Kenya Arthur Makau,Titus Oyuga, Frances Lagoussis (Mombasa), Trizah Njoroge South Africa: Tabitha Muthoni, Winnie Sentabire, Pindiwe Ketelo, Petty Gonye, Angeline Ntobeng

The effects may become more apparent the scaling back in funding for government projects which would have a knock-on effect on a country’s economy as a whole.

Uganda: Winfred Nakairu, Deus Mutyaba Botswana: Dickson Manyudza, Gerald Mazikana

The longer the crisis drags on in the oil rich states of the north the greater and more far reaching the effects will be.

Tanzania: Tom Kiage Malawi: Anderson Fumulani Ghana: Anthony Hondah, George Laing Zimbabwe: Cyri’l Zenda Rwanda: Collison Lore Nigeria: Seni Bello China:Weng Jie

Published by Group Africa Publishing Ltd Botswana Office Cadline (Pty) Ltd. P/Bag 494 Gaborone, Botswana.

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Tanzania Office Daas Agencies Ltd P. O. Box 96061 Tel: (022) 2124328 Fax: (022) 2124328, Dar es Salaam E-mail: tanzania@ groupafricapublishing.com

Ghana Office Apex Media Africa P.O. Box 2558 Accra GP +233 (0)302 942 528 apex@groupafricapublishing.com

Nigeria Office B23/24, Aishetu Emoewa Plaza 196, Iju Water Works Road, Ifako Ijaye Lga,Agege, Lagos.

Tel: 234-1-7347860 Email: nigeria@ groupafricapublishing.com

Kenya Office Northwest Ventures Ltd P.O. Box 16414 Nairobi 00100 Kenya Tel: +254 20 2679809, 2679808, 2091305 Email: kenya@ groupafricapublishing.com Malawi Office Centre for Media Advocacy P.O. Box 1732, Blantyre, Malawi Tel: 2659954854 E-mail: malawi@ groupafricapublishing.com Rwanda Office Kolline & Hemed Inc., B.P. 3328, Kigali, Rwanda Tel: +250 03 748106 E-mail: rwanda@ groupafricapublishing.com Website: www.kollinehemed.org

South Africa Office College Publishers Ltd No. 9 St. Davids Road, Parktown, Johannesburg, SA Tel: 27 11 484 0119, 642 5283 Fax: 27 11 484 6706 E-mail: southafrica@ groupafricapublishing.com Uganda Office Trine Media Ltd 5th Floor Greenland Towers, Kampala Road, Uganda P.O. Box 37690, Kampala Tel: 256 414 340394/312 287770 Fax: 256 414 340393 Email: uganda@ groupafricapublishing.com

Robert Barnes

June 2011

July 2011

Plant and Equipment Lifting equipment

Renovations and refurbishments Old is gold

Roofing Clay tiles

Concrete products Prefabricated housing units

August 2011

September 2011

Partitions Glass partitions in offices

Lifts Raising efficiency levels

Ceilings Low cost options in ceiling fittings

Wet services Water reticulation

The editor accepts letters and manuscripts for publication from readers all over the world. Include your name and address as a sign of good faith although you may request your name to be withheld from publication. We reserve the right to edit any material submitted .

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NEWS

Morocco Foster + Partners First Africa Project The first regional headquarters for Moroccan bank, BMCE (Banque Marocaine du Commerce Exterieur) have opened in Rabat and Casablanca.

Another branch is due to open in Fez later. These are the first buildings by Foster + Partners to be completed in Africa.

The banks’ contemporary interior is wrapped by a traditional, energy efficient envelope and their design is based on a modular system, which utilises local materials and craftsmanship to create a striking new emblem for BMCE. Each building comprises a concrete frame, with an entrance colonnade and a series of bays repeated on a modular grid. The bays are enclosed by glazed panels and 200mm-deep screens, which provide shade and security. The screens are cut from sheets of stainless steel – a special low-iron mixture that does not heat up in the sun.

BMCE, Moroccan bank, regional headquarters branches have opened in Rabat and Casablanca.

Kenya Construction of Isiolo International Airport Begins The construction of the Isiolo International Airport at a cost of US$7 million has finally began and is expected to be completed by the end of March, next year.

The construction is targeted to end within the contract period of 365 days from March, this year, after which Kundan Singh Construction Limited will hand over the facility to the Kenya Civil Aviation Authority.

The 1.4 kilometre runway will handle heavy commercial aircraft with a load weight of up to 66,381 kilogrammes. The 34 metre wide runway will also accommodate maximum takeoff weight of 379,016 kilogrammes. The airport will have two taxi ways and three aprons where aircraft can park and refuel.

The aerial view of Jomo Kenyatta International Airport .

Mozambique Main North-South Highway The stretch of Mozambique's main north-south highway (EN1) linking the city of Xai-Xai in Gaza province with the town of Chissibuca in Inhambane province should be completed in May, according to the National Roads Administration (ANE).

The 96 kilometre stretch is being completely rebuilt by the China Henan International Cooperative Group-CO (CHICO). The work to rebuild this section began in January 2009 and was budgeted at just over US$ 41 million.

Funding came from the Mozambican government and the World Bank.

The rebuilding of this section of the EN1 highway is part of the strategic plan to maintain a good road link between the north and south of the country.

Work is also taking place along the EN1 in Maputo between the Jardim and Benfica neighbourhoods at a cost of around US$22 million.

The rebuilding of this section of the EN1 highway is part of the strategic plan to maintain a good road link between the north and south of Mozambique.

May 2011

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NEWS

Namibia Construction of Namibia’s Largest Dam The construction of the Neckartal Dam in the Fish River about 40 kilometres west of Keetmanshoop has been approved by the government to begin this year. The first part will comprise the construction of an access road to the dam site.

The construction of the dam, which is a re-introduction of an idea considered by the German colonial government a century ago, is expected to create 1 000 direct jobs. It will make up a catchment area of 45 365 square kilometres.

Upon completion it will be the largest dam in the country, about three times the size of the Hardap Dam which is the largest dam at the moment.

The construction of the Neckartal Dam in the Fish River about 40 kilometres west of Keetmanshoop has been approved by the government.

Tanzania Developing a New 800km Long Railway Link Tanzania and Uganda are planning a US$2.7 billion joint venture to develop a new railway line and ports on Lake Victoria to cope with increased trade from the East African hinterland.

The new 800km long railway will link a proposed multibillion dollar deep water port at Mwambani Bay in Tanga, with Musoma on Lake Victoria, with onward connection to Kampala and Juba.

The existing Central Corridor in Tanzania runs from Tanga and ends in Arusha, nearly 400km away from Lake Victoria and a new extension will be needed to Musoma - about 400km west.

Officials said the project is estimated to cost at least US$2.7 billion, out of which US$1.9 billion is for the railway, US$695.5 million for the Mwambani port and US$72.6 million for the development of the Musoma dock.

The new 800km long railway will link a proposed multibillion dollar deep water port at Mwambani Bay in Tanga, with Musoma on Lake Victoria.

Zimbabwe Rehabilitation of Harare’s Water Reticulation China has availed US$144million for the rehabilitation of Harare’s water reticulation system as well as equipment for drilling of over 500 boreholes countrywide.

The funding is part of a US$700million technical cooperation and loan sealed by Chinese vice Prime Minister Wang Qishang and President Robert Mugabe recently.

Water Resources Minister Samuel Sipepa Nkomo said the funds would be used to hire contractors for the upgrading of the water and sewer system that has almost collapsed. Blocked sewer and water pipelines are a common feature in Zimbabwe’s capital.

Another contract would be awarded to contractors for the drilling of boreholes in some parts of Zimbabwe where water shortages are the order of the day.

8

China has availed US$144million for the rehabilitation of Harare’s water reticulation system.

May 2011

NEWS

Denmark Design for Extension of Herlev Hospital Henning Larsen Architects and the consortium consisting of the architecture companies Friis & Moltke and Brunsgaard & Laursen, the engineering companies NNE Pharmaplan and Orbicon Leif Hansen, the consulting company Norconsult and landscape architects SLA have won the competition for the extension of Herlev Hospital. A total of five consortiums participated in the competition.

The 54,000m2 extension will comprise a new emergency department and maternity services centre, including a pediatrics unit and maternity ward.

The project consists of three circular buildings placed on rectangular bases – which are displaced from each other creating a number of inviting outdoor spaces. The new extension thus constitutes a down-scaled and compressed contrast to the 120 metre high rectangular geometry of the existing hospital.

Motorway Bridge over the Rio Sordo

The 54,000m2 extension of Herlev Hospital will comprise a new emergency department and maternity services centre.

Portugal

The motorway bridge across the Rio Sordo is in the form of a 412 m long, five-section structure with two separate superstructures.

The almost 20m wide and 3.60m high prestressed concrete hollow box girders are being realised using two different construction methods: the three middle bridge spans with the balanced cantilever method and the respective edge spans formed on PERI shoring.

As falsework, the contractor is using VARIOKIT VST heavyduty shoring towers – 6m to 30m high - with loadbearing capacities of up to 2,500 kN each. The VST towers are erected as four-legged individual structures which support the 72m long superstructure formwork at defined load application points with axis spacings of between 10m and 24m.

The motorway bridge across the Rio Sordo is in the form of a 412m long, five-section structure with two separate superstructures.

Vietnam Trung Son Hydropower Project Trung Son Hydropower Plant (TSHPP) is a multipurpose project, providing power generation, flood control and irrigation benefits. At completion, the project is expected to produce an average of 1,019 GWh of electricity a year.

TSHPP will be constructed on the Ma River, near Co Me village in the territory of Trung Son commune, Quan Hoa district, Thanh Hoa province.

The plant will have an installed capacity of 260 MW and a dam 84.5 meters high and 513 meters long at the crest that will create a 38.5 km long reservoir with an area of 13.13km2.

Ancillary works will include improvements to the road to allow access to the dam site, and construction of power lines to supply and evacuate power from the dam.

TSHPP will be constructed on the Ma River, near Co Me village in the territory of Trung Son commune.

May 2011

9

PRODUCTS

LR 13000 Crawler The new LR 13000 crawler crane can lift a load of more than 3,000 tons. With a test load of 3,371 tonnes at an outreach of 16 metres the nominal load from the table of 2,697 tonnes has been proved.

The crane was assembled with a main boom of 60 metres in length, a 54 metre derrick boom, 400 tonnes of superstructure ballast, and suspended ballast of 1500 tonnes. This is the heaviest weight which has ever been lifted by a Liebherr crane, and to set up the enormous load Liebherr constructed a special load traverse arrangement.

The LR 13000 will be equipped with a new type of heavy-lift boom, which Liebherr has dubbed the P-boom – “Power boom“. With this system, the new crane should then be able to deal with a load of 3,750 tonnes, meaning that the nominal load of 3,000 tons will be tested and approved.

Website: www.jlg.com.

E26 M-Series Mini-Excavators Bobcat unveiled a new addition to its M-Series line of mini excavators. It is a 2.6 ton E26, minimal tail swing compact machine.

The new model replaces Bobcat's long-standing 324 and 425 models and will reach the market in July this year. The E26 is powered by a 27 hp (20 kW) Interim Tier 4 compliant engine and has just 0.8 in (20 mm) of tail overhang - allowing the machine to fit into tighter surroundings than its predecessor models.

The E26's hydraulic system delivers 4991 ft/lbs (6.8 kN) of bucket breakout force, and can dig to 8ft 6 in (2.6 m) with a standard arm and 9 ft 6 in (2.9 m) using the long-arm option. The machine also sports an auto-shift drive system to improve productivity during travel. This means it will automatically shift to low speed (1.6 mph, 2.6 km/h) as drive load increases, and shift back to high range (2.7 mph, 4.4 km/h) as the load declines.

SK850LC Kobelco Construction Machinery America introduces the new SK850LC Super ACERA heavy-duty, fullsize excavator. The SK850LC expands Kobelco America’s full-line of products into the 80- to 90-ton class, addressing customers’ demands for larger, more powerful machines. The SK850LC was designed to deliver a competitive edge whether the job requires heavy earth moving, aggregates or demolition. Whether in bridge, highway, building or utility construction or truck loading, this excavator can offer the power and capacity to do it all efficiently and economically.

“The SK850LC Super ACERA illustrates Kobelco’s commitment and responsiveness to customers’ demands for a heavy-duty excavator in the 80- to 90-ton class that delivers unmatched performance, exceptional quality and dependability,” said Paul Golevicz, brand marketing manager at Kobelco America. “Combined with many of the features found on our other newly introduced excavators, the SK850LC completes the full-range of Kobelco’s excavator line, which now ranges from 1.9 tons to 88 tons, demonstrating Kobelco’s commitment to its customers to provide superior power and increased capacity without sacrificing fuel economy.”

Website: www.kobelcoamerica.com

HDS7000 Leica Geosystems has launched the HDS7000, a new phase-based laser scanner that lets users take advantage of ultra-high speed scanning for more as-built survey applications on more sites. The HDS7000 features key enhancements over its predecessor thanks to its rugged design, excellent environmental specs, and low-noise data.

Phase-based scanners are known for their ultra-high scan speeds and corresponding high scan density, but have long been relegated to short range, as-built applications such as tunnels, building interiors, and compact industrial plants. With scanning speeds up to >1 million pts/second, the new HDS7000 phase-based scanner extends the practical range at which phase-based lasers can receive detectable laser returns – especially from vertical surfaces. In the past, such practical maximum return limits were around 60m – 70m. For the HDS7000, this range is more than 100m.

Website: www.leica-geosystems.com 10

May 2011

ASSOCIATION NEWS & EVENTS

Ghana Institution of Engineers Ghana Institution of Engineers (GhIE) has elected the 42nd President Ing. Albert Ayeh Ogyiri. He is a Fellow of GhIE and also the Chief Executive of ABP Consult Ltd, a Civil Engineering firm in Accra.

Eng. Ogyiri became a corporate member of GhIE in 1989 and was elected a Fellow in 2007. He served as Secretary to the Civil Technical Division from 2005/6 to 2006/7, National Councillor and Chairman of Membership Committee from 2006/7 and 2007/8. Prior to this election, Eng. Ogyiri served as a Vice President, Chairman of Finance Committee and Honorary Treasurer in 2009/2010.

Delivering his inaugural address on the theme “Enhancing Professional Practice to Spearhead National Development”, the president stated that Ghana stands on the threshold of an accelerated pace of development Ghana Institution of Engineers 42nd President, occasioned by a peaceful atmosphere, macro-economic stability and an oil economy.

Eng. Albert Ayeh Ogyiri

EVENTS

The 2nd Eastern Africa Oil, Gas & Energy Week

The international Exhibition for building and construction in the East Africa Date: Sep 16-18, 2011 Venue: Munyonyo Commonwealth Resort, Kampala – UGANDA E-mail: info@builders-exhibition.com Website: www.builders-exhibition.com This is an international exhibition and trade show for building & construction industries in the East Africa Region, Builders is a biannual event held every two years in one of The East Africa Countries.

The Builders invites the key decision makers of the Building and Construction industry from all around the world, who are interested to invest in the East African market. It provides an excellent opportunity for all the key players and exhibitors to find their target customers whether they are retailers, wholesalers or manufacturers.

The Builders is a good opportunity for everyone who seeks to have network of high profile attendees with the governmental companies, investors, engineers, architects, builders and decision makers under one roof and face to face.

The 1st Zambia International Mining & Energy Conference & Exhibition Date: June 15-17, 2011 Venue: Mulungushi International Conference Center, Lusaka, Zambia Contact: Laura Sitzia / James Shindi Email: zambia@ametrade.org Website: www.zimeczambia.com The 1st Zambia International Mining & Energy Conference & Exhibition (ZIMEC 2011) will be planned by an organising committee comprising of the Ministry of Mines and Minerals Development, Republic of Zambia, Association of Zambian Mineral Exploration Companies (AZMEC), Chamber of Mines, Zambia and AME Trade Ltd, United Kingdom.

ZIMEC 2011 will consist of two days of plenary sessions, technical workshops, and exhibitions.

It is a unique opportunity for all participants to discover Zambia, the country’s mining, energy and petroleum potential, as well discussing the challenges of developing projects relating to the exploration and extraction of Zambia’s natural resources.

The third day of the event will be dedicated to field trips to Zambia’s mining and electricity hubs or a tourist excursion to some of the country’s most scenic locations.

May 2011

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Shard London Bridge The tower previously known as London Bridge Tower, and also known as the Shard of Glass, 32 London Bridge and The Shard, is a 72-storey mixed use tower located besides London Bridge Station on the south bank of the River Thames. The station, which combines train, bus and underground lines, is one of the busiest in London with 200,000 users per day. The project is a response to the Mayor’s policy of promoting high density development at key transport nodes.

Shard London Bridge The tower previously known as London Bridge Tower, and also known as the Shard of Glass, 32 London Bridge and The Shard, is a 72-storey mixed use tower located besides London Bridge Station on the south bank of the River Thames.

The station, which combines train, bus and underground lines, is one of the busiest in London with 200,000 users per day. The project is a response to the Mayor’s policy of promoting high density development at key transport nodes.

Construction History In February 2009, a mobile crane and a small piling rig appeared on site. In early March 2009, the small crane began putting steel beams into the 12

ground, as part of preparations for the core of the building. Full construction began on mid March 2009, with the first piling rig on site. Demolition work on the New London Bridge House started in May 2009. The latter is an adjacent project to accompany the Shard London Bridge.

The first steel work went into the piles in late April.

Five cranes were used to build the project, with four of them 'jumping' with the tower as it rises.

Crane 1 was erected in September and crane 2 was erected at the beginning of October. By October 2009, steel beams began appearing on site, with concrete being poured at the northern part of the site, ready for Crane 3.

By March 2010, the concrete core was rising

steadily at approximately 3 metres a day. After a pause in March–April 2010, it continued rising, reaching approximately the 33rd floor in mid-June, almost level with the top of Guy's Hospital, which stands at 143 m. The first glass panel was installed on May 2010. In July 2010 the core stopped rising as it had reached level 38 and needed to be reconfigured.

By mid-November 2010, the third core had reached level 68 (approx 235 m) with steel reaching level 40 and cladding enveloping a third of the building.

In late November, it passed the 235 metres (771 ft) mark, relieving One Canada Square in Canary Wharf of its 18-year reign as Britain's tallest building.

May 2011

The cladding has also progressed mainly on the towers "backpack" where much of its 15 levels were cladded in a month.

The concrete core topped out at level 72, standing at 245 metres (804 ft).The early part of January 2011 saw the installation of hydraulic screens.

These are used to form the concrete floors that are needed for the hotel and apartment section of the tower. These will rise with the floors up to level 69. On 25 January 2011 the concrete pumps began pouring the first concrete floor at level 41.

By the end of February 2011 the concrete floors had risen to level 46 with a floor being poured on average every week. The cladding has also progressed mainly on the towers "backpack" where much of its 15 levels were cladded in a month, the cladding on the main tower though had slowed due to the concrete floors being poured above.

Taking Form The form of the tower was determined by its prominence on the London skyline. Unlike other cities such as New York or Hong Kong, the Shard is not part of an existing cluster of high rise buildings. References included the masts of ships docked in the nearby Pool of London and Monet’s paintings of the Houses of Parliament.

The slender pyramidal form is suited to the variety of uses proposed: large floor plates for offices at May 2011

the bottom, public areas and a hotel in the middle, apartments at the top. The final public floors, levels 68-72, accommodate a viewing gallery 240m above street level. Above, the shards continue to 305m. The mix of uses add vibrancy to the project: public access was deemed particularly important for such a significant building in London.

Glass Shards Eight glass shards define the shape and visual quality of the tower. The passive double façade uses low-iron glass throughout, with a mechanised roller blind in the cavity providing solar shading. In the “fractures” between the shards opening vents provide natural ventilation to winter gardens. These can be used as meeting rooms or break-out spaces in the offices and winter gardens on the residential floors.

They provide a vital link with the external environment often denied in hermetically sealed buildings.

The main structural element is the slip formed concrete core in the centre of the building.

It houses the main service risers, lifts and escape stairs. A total of 44 single and doubledeck lifts link the key functions with the various entrances at street and station concourse level.

The project also includes the redevelopment

The form of the tower was determined by its prominence on the London skyline.

of the train station concourse and bus station.

The existing roof is to be removed and replaced with a glazed canopy, and retail units relocated to open up visual connections between the train station, bus station and taxi ranks. Two new 30m x 30m public squares will form the centre of the scheme. Such improvements to the public realm are vital to the regeneration of this congested and neglected part of the city and will hopefully provide the catalyst to further redevelopment in the area.

Project Team Architect(s):

Renzo Piano

Structural engineer: Turner & Townsend (Project Managers) Arup (Building Services) WSP Cantor Seinuk (Structural Engineers) Robert Bird Group (concrete temporary works) Ischebeck Titan on most floors 40+ for concrete support Contractor:

Mace

Developer:

Sellar Property Group 13

Worlds Tallest Megashor Tower Supports Cadagua Viaduct, Balboa Spain Megashor towers designed by RMD Kwikform Iberica have been used to support four pillars up to 50m high, as two twin steel bodied viaducts are pushed across the Cadagua valley near Bilbao, to create the Cadagua Link on the new “Supersur” by-pass.

Faced with crossing the deep Cadagua valley, just outside the city of Bilbao in Northern Spain to create the much needed Cadagua link on the new “Supersur” by-pass, UTE Enlace del Cadagua, (a joint venture between Spanish construction specialists Sacyr and Exbasa) had to come up with a very different innovative approach, to create two 50m high twin viaducts - each with two lanes.

RMD Kwikform engineer said: “Due to the steep inclines on both the South and North sections of the crossing, which lead down to the Cadagua river and on the east side also incorporate two busy train lines linking Bilbao with Santander and Balmaseda, the more traditional method of viaduct construction using in-situ or precast concrete sections supported by falsework was not possible.

The solution was to construct two steel structures for each viaduct that were mounted on top of each other and pushed from one side of the valley to the next. Supported by RMD Kwikform Iberica Megashor towers, embracing Y shaped concrete pillars up to 50m high, once they reach the other side the steel viaduct structures on the top will be lowered into place on to the Y shaped pillars.

Similarly, the use of the push technique normally relies on very large and rigid concrete pillars, especially at such great heights. So with slimmer and therefore less rigid pillars, a new and more innovative method of supporting the construction was required. This involved the fabrication of two steel structures for each viaduct, welded together on the north side in several 20m sections.

They were then pushed across the valley, over our Megashor towers which embraced the pillars.

Designed to support the overall load of the viaduct once completed, the slim pillars would not be able to cope with being subjected to large horizontal loads as the viaduct sections were pushed over them. Therefore a specialist structure and method of supporting the viaducts using the pillars, without affecting their structural integrity was required.

This is where the engineering and erection teams from RMD Kwikform Iberica, played a key role. By designing and constructing a number of specialist Megashor towers, (included the worlds tallest) to provide flexible support for the pillars, RMD Kwikform Iberica’s contribution to the project was crucial to its overall delivery.

Commenting on the project Alberto Aldama 14

“A critical element to this option was the protection of the pillars for each viaduct, which were positioned at set intervals across the valley to enable the completed structure to cross the river and train line safely. With very tight tolerances and inbuilt flexibility required in order for the Megashor towers to embrace the pillars, three engineers from RMD Kwikform Iberica worked on the design and calculation, drawings and checking respectively.

Starting out from abutments at the north side of the valley the overall span to the abutments on the other south side is 430m with four Y shaped pillars for both viaducts requiring Megashor tower support.

The towers themselves were formed with vertical Megashor beams and horizontal Superslim beams tied together, with extra support provided by specially fabricated large bracing plates. Each tower was designed to support vertical loads of up to 800 tons and horizontal loads of 50 tons, which were produced by pushing of the bridge decks onto two jacks on top of each tower. In total six towers were erected, two measuring 50m, two of 45m, one of 20m and one of 43m.

Alberto added: “The greatest challenge to overcome was the design of the 50m high towers, (a record for RMD Kwikform) that could support the great loads of the pushed bridge decks. There was also the added difficulty of the movement of the pillars, as they could fissure and sway over 40cm at the top. We therefore had to make our towers especially rigid so that apart from supporting the high loads, they could avoid the swaying of the pillars and prevent any damage occurring.

In order to withstand the forces and maintain rigidity, we had to combine a total of six Megashor legs together to form the tower. This was achieved by using specially designed braces plates that were positioned at set intervals on both sides of the tower. We also designed some special parts for the tops of the towers, which allowed them to be tied to the pile, “embracing” it with Superslim soldiers.”

Read more on this article at http://main.constructionreviewonline.com

May 2011

Engineered Wood Flooring Learn the Basics of this Alternative to Hardwood and Laminate Flooring Solid hardwood floor is difficult to install on your own - you almost always need to hire hardwood floor installers for this - and can be finicky when it comes to moisture. And laminate flooring, as much as it looks like actual wood flooring, simply is not real wood. When looking to invest in long-lasting and attractive flooring, one of the things to look out for is a flooring material that is likely to respond to these sorts of environmental changes without losing any of its structural stability, or its attractiveness. A solution that many have discovered for versatility, attractiveness, and with a robust design noted for structural stability is engineered hardwood flooring.

Engineered wood, too, is real wood. It is a sandwich of 1/16" to 1/8" of finish wood on top and non-finish plywood underneath. So, what you're looking at is 100percent genuine wood.

The best engineered wood floors are built having multiple ply layers that are cross layered, glued and pressed together. The inner cores are generally either a hardwood and or soft plywood type of material, which incorporates the tongue and groove system. The top thicker hardwood veneer wear layer is glued on the top surface of the core and is available in almost any hardwood species.

More resistant Engineered wood floors are more resistant to higher moisture levels than solid wood flooring, which adds to their appeal to use in damp basements or in regions of the world that have higher relative humidity levels. Engineered flooring can be direct glued-down over (dry) concrete slabs above or below grade, or stapled down over a wood sub floor. What About Areas With Light Moisture?

Engineered wood flooring works well in kitchens, basements, and bathrooms where light moisture May 2011

might be present. Still, it doesn't hold up to really wet areas such as basements that flood frequently. Nor does it hold up to kids' bathrooms which, as you may know, tend to flood frequently.

Truthfully, no wood flooring product is great for very wet areas (tile, concrete, vinyl, or any other non-organic product is best). But relative to other wood flooring products, engineered wood isn't bad.

Newer installation methods On some styles of engineered wood flooring manufacturers have also come up with a unique newer installation method where the tongue and groove edges of the boards are simply Click Locked together for a very easy and fast floating installation. Engineered flooring can be installed on any grade level. Quality Engineered Hardwood flooring has the same resale value as 3/4 solid wood flooring if you ever decide to sell your home.

Engineered Hardwood floors range in widths from 3-7 inches wide and come in a wide variety of domestic and exotic hardwood species and some are even available in the popular hand scraped style. Some brands of engineered flooring have a thin wear layer that can only be re-coated and cannot be sanded and refinished new again once they get worn. They have an average lifespan of between 30 - 40 years depending on traffic.

Other brands or styles can have a thicker 2 - 4 mil thick wear layer that can be completely sanded and refinished 2- 5 times if they ever needed to be. These thicker wear layer engineered floors can last from 40 - 100 years before having to be replaced which add to their appeal.

Some people think that engineered flooring is not as good as a solid 3/4 inch thick floor because of the thinner wear layer, which is not always true. Remember that the sand-able or renewable wear layer on a 3/4 inch solid wood

floor is approx 5/16 before you start exposing the nails that were used to install it and you can sand and refinish 3/4 inch thick flooring approx 6-7 times. The average lifespan of 3/4 inch thick solid wood flooring is approx 100 years.

Average lifespan An engineered wood floor having a wear layer of 4 mil or 5/32 usually can be sanded and refinished 4-5 times. The average lifespan of an engineered floor having a thick renewable wear layer is approx 60-80 years. Your concern should be what your demands are going to be for that flooring and match those demands to the flooring as best you can. If the area that the new flooring is going to be installed is it going to receive a lot of rough traffic with little or no care or maintenance then you will want a engineered floor that has a thick wear layer that can be sanded and refinished new again later if it ever needed to be.

If the area is not going to be heavily trafficked and will be maintained properly then you may not need as thick a wear layer. Quality Engineered floors are very durable and are commonly used in shopping malls which receive a lot of foot traffic.

Super-Engineered™ Wooden Floor Suntups Wooden Flooring have been in the game now for over 20 years and due to the continual movement in solid wooden flooring which often causes havoc with the floors during climatic swings between the rainy and dry seasons, Suntups have created their Super-Engineered™wooden floor and decided to drop full solid wooden flooring. The Suntups Super-Engineered™ wooden flooring has a 5 & 6mm top face above the tongue which is equal to its solid counterpart which means that it has a life span equal to the full solid floor and can be sanded and sealed as many times.

Read more on this article at http://main.constructionreviewonline.com

15

Guest Poor Construction Plans

By Dr Ambwene Mwakyusa

Poor Construction Plans What has been described as an infrastructural crisis in Dar es Salaam has been caused by a growth of the population, together with a lack of the application of building laws and non adherence to the Town Planning directions. This was part of the explanation given by the Chairman of the Registration Board of Architects and Quantity Surveyors (AQSRB), Dr Ambwene Mwakyusa, when asked why such a situation exists.

The growth of population has overtaken the facilities provided in a given area to an extent that they fail to give the intended service. The infrastructure provided in a given area ought to be expanding proportionally to the population growth.

Taking an example of the Kariakoo area in Dar es Salaam, way back in 1916, its population was very small in comparison with the 24,000 of the 2002 census. Despite the increase of the population being serviced by that area, the amount and size of the principal parts of infrastructure and areas of land provided some 80 years ago, have not changed or increased to suit demand.

Aging infrastructure, could be another factor causing a failure to perform to the designed level, particularly if no periodical maintenance is carried out.

Dr Ambwene Mwakyusa

Dr Ambwene Mwakyusa is the Chairman of the Registration Board of Architects and Quantity Surveyors (AQSRB) in Tanzania. He is also the Director General of the National Estates and Designing Corporation (NEDCO).

16

Infrastructure It must be remembered that when we talk about infrastructure, we are actually referring to the components that make up housing. Buildings are only one aspect of infrastructure and goes beyond seeing housing as merely a dwelling or group of dwellings.

Housing must be seen as the whole in totality encompassing a residential neighbourhood or living environment. This broader definition, onto which this infrastructure crisis should lean, includes all the amenities and services that a community requires in a residential neighbourhood. This includes water supply, sanitation, roads, drainage, electricity and the like.

The lack of a Building Act at present hampers the development of housing and infrastructure and legislation should be provided to include a Building Code in order to control developments.

Rural-Urban Migration Being the most populated city in the country with a population of about 4.5 million people, Dar es Salaam, is experiencing a high rural-tourban migration and by far enjoys the greatest share of development, with the remaining being shared by the other urban areas.

The rural areas, where the majority of people live covering about 80 per cent of the country, appear as having been forgotten and has missed out.

As submitted at the ‘Inter-regional Conference by the United Nations Human Settlements Programme UN Habital’, held in Nairobi, Kenya in October 2004 ‘Cities - Engines of Rural Development’ is something that can be adopted.

To contain and balance the situation an attempt at rural-urban linkage development perspective is necessary. This is the flow of ideas and the diffusion of innovation. Adequate infrastructure is the backbone of this urban-rural development linkages approach. There is also adequacy of infrastructure ease of mobility and access to employment and enhancement of income. Adequate investments in infrastructure also improves rural productivity, allows access to markets, jobs and public services by both men and women.

It is important, therefore, to treat urban and rural issues holistically because they form part of a dynamic system in which the linkages have to be strengthened. One cannot do without the other.

Housing Population migration and its growth in the rural areas with the urban linkage have to be looked at leading to the need to discover the housing development needs brought about by the impact of population changes.

This means that when we look at the infrastructural crisis in the city, the definition of housing should be appreciated because this will reveal and hopefully close up all the ‘weep holes’ of the problem source.

Once again, when we look at the Kariakoo area of more than 200 hectares and probably other areas one is familiar with, issues covered in the housing definition, such as adequate privacy, adequate space, adequate security, structural stability and durability, adequate lighting, ventilation, adequate suitable environmental quality and health related factors and not to forget mentioning water supply, drainage system, security tenure, aesthetics and general hygiene, one may wonder where we are leading to in the spirit of city/urban improvement with modernity.

Care should be taken before carrying out Kariakoo developments, which was principally for residential housing, now profusely is being turned into a heavy commercial area.

I have associated with housing in this area because that was the original plan of the area.

May 2011

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Personality

AAK Chairman Steven Oundo pins AAK badge on former US Ambassadro during the 2010 dinner.

ARCHITECT STEVEN OUNDO Arch. Oundo is also Second Vice President and Council Members of the East Africa Institute of Architects where he has served in the past as Hon. Treasurer between 2005-2006 and past Chairman Board of Practice and Ethics (2009). He is also the Senior Vice-Chairman of the Association of Professional Societies in East Africa (APSEA).

Arch. Oundo is currently Alternate Vice President of Africa (East) for Commonwealth Association of Architects and therefore a Council member until 2013 and is also the Coordinator for the Work Group on Architecture and Society for the African Union of Architects (AUA). Along with all these accomplishments Arch. Oundo is a registered architect and Board Member of the Board of Registration of Architects and Quantity Surveyors of Kenya (BORAQS).

He is currently the director and has been a partner and architect for Trioscape Planning Services Limited. In the past he has been an assistant architect for Kisonyo Adwori & Associates Architects.

Passion for architecture Buildings had always fascinated him from a very early age and particularly the fact that it offered him an opportunity to explore their creative abilities. “When I was in Mangu High School for my secondary education back in the days (1986-89) I used to hear of this very challenging course called architecture offered at the university of Nairobi and being one not to shy aware from challenges I decided to take it up and discover what it was really all about,” he says.

He later took up the challenge in 1990. He describes the class as one that was full of challenges to an extent where a third of the class quit before the end (not a single lady made it).

Arch. Oundo adds that the number of graduating ladies in architecture has since increased and I have no doubt with the promulgation of the new constitution, emphasis on gender balance and the girl child we shall have 18

even more in the practice of architecture.

The beauty of architecture is that you conceptualize your creative ideas into a project, develop a brief, design it and eventually see it through construction and final implementation. Your works not only get to be seen where people can enjoy the aesthetics but also are put to functional use. The honorable AAK chairman describes his profession.

Getting started He has been in the practice for almost one and a half decades. His interest in the professional bodies related to architecture started way back in college. “While I was pursuing my undergraduate degree course I was an active member of the Architectural Students Association at the University and it was through this forum that I joined the AAK as a student member of the Architect's Chapter in 1995.”

After his graduation in 1997, he had his membership status upgraded to Graduate Member of AAK. He went through his internship for two years with the architectural firms of George Kisonyi Odwori Architects and Trioscape Architects respectively before he sat professional examinations in 1999 and got registered as an Architect in 2000 by the Board of Registration of Architects and Quantity Surveyors of Kenya (BORAQS).

In the year 2000 he became a Corporate Member of AAK and also a partner with Trioscape Planning Services where he still practices to date.

He sat for his entrance examinations in 2001 and joined the Chartered Institute of Arbitrators (Kenya Branch) as an Associate Member.

Personal life Arch. Oundo loves sports. “Back to my days in Mangu High School I represented the school at national level in football, swimming and basketball which was no mean achievement considering I did so over a four year period.” He plays golf and chess today.He is a widower and father of five.

Arch. Steven Wandera Oundo

Arch. Steven Wandera Oundo graduated from the University of Nairobi with a Bachelor of Architecture (Hons) Degree and is currently the Chairman of the Architectural Association of Kenya (AAK). He has served the Architectural Association of Kenya for more than a decade having been a member of the AAK Governing Council since 2001 and served in various capacities including Vice Chairman of the Association (2007-2009), Convenor Ethics and Practice Committee (2007- 2009), Convenor Membership Outreach, Training and CPD programs Committee at AAK (2007-2009), Vice-Chairman Architect's Chapter Council AAK (2005-2007), Hon. Secretary Architect's Chapter Council (2003-2005), Hon. Registrar Architect's Chapter Council (20012003).

May 2011

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19

Wind Powered Turbines Renewable energy production and demand growth is gaining momentum in many ways across the world.

There is a booming demand for wind power today and all wind energy equipment manufacturers are gearing up to meet the demand and take advantage of it. Wind power capacity growth will be reaching 447GW in the next five years. Wind turbines can be used to generate large amounts of electricity in wind farms both onshore and offshore.

Wind energy is growing fast. It has been the world’s fastest growing renewable energy source for more than a decade with an average annual growth rate of over 20 percent. Wind energy is renewable. As one of Mother Nature’s gifts, the wind is available and plentiful and won’t deplete our world’s natural resources. Wind generators are growing fast due to the financial savings they offer.

Wind energy is clean. Electricity generated by wind turbines won’t dirty the air we breathe or emit pollutants like other energy sources—that means less smog, less acid rain and fewer greenhouse gas emissions. The wind cools us on a summer day, moves our sailboats, flies our kites and helps grow our gardens. It can also enhance our world’s security, help protect its beauty and improve the quality of air we breathe when used to power our homes and businesses.

Benefits society Wind energy benefits society. Because it is a clean energy source, wind energy reduces costs associated with air pollution—both healthcare and environmental costs. And, its low operating costs and short construction lead times mean it can provide low cost, clean energy quicker and more conveniently than traditional power plants.

Wind energy is local. Wind projects keep more energy dollars in the communities where projects are located and provide a steady income through lease payments to the landowners.

Wind energy is reliable and efficient. Unlike other power plants, wind energy systems require minimal maintenance and have low operating expenses. Wind turbines are very reliable and are available to generate electricity 99% of the time (on par with other generating sources).

Small wind turbines Small wind turbines are electric generators that utilize wind energy to produce clean, emissions-free power for individual homes, farms, and small businesses. With this simple and increasingly popular technology, individuals can 20

generate their own power and cut their energy bills while helping to protect the environment.

Home wind turbines Home wind turbines can be used to replace traditional energy sources with green, renewable energy. In most residential areas, wind turbines will only be effective at replacing a portion of your energy use. Home wind turbines are a relatively new option for families who are trying to invest in more green energy sources.

Although it is common for people in sunny areas to look into getting solar panels, home wind turbines are a relatively new technology.

There are now several different residential wind turbine options on the market, and depending on how much energy you want to get from wind power, they can range anywhere from $500 to $22,000 for installation.Home wind turbines can be used to reduce your carbon footprint, lower energy bills or even move entirely off the grid depending on what your goals are.

The most common use for a home wind turbine is just to reduce the amount of energy you use from more traditional (coal, nuclear, etc) power plants.

Everybody can do this, but whether or not it is cost effective will depend on where you live. Home wind turbines are not recommended for heavily populated areas. Large buildings and lots of urban development have a tendency to break up the wind patterns, which makes your wind energy even more erratic than it would be ordinarily.

If you live in a heavily developed area, then it is recommended that you use your home wind turbine just to reduce your energy bill and carbon footprint a little - it is unlikely that you’ll have access to enough wind to do much more than that. It’s highly recommended that you only invest in one of the smaller roof-top wind turbines if you live in one of these areas.

Depending on your energy bill, you may be able to May 2011

reduce it by 10% or more in these areas. If you live in a more remote area, especially if your immediate surroundings are particularly flat, you have the choice of a less expensive rooftop home wind turbine, or one of the more expensive elevated options.

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Elevated home wind turbines The elevated home wind turbines will come with a tower that is between 80 and 120 feet tall towers. The towers help the wind turbine get access to stronger winds that are not broken up by structures and/or trees on the ground. A residential wind turbine can produce between 300 and 500 kilowatt hours every month. It is unlikely that this will be enough to fully take over the power consumption of your home, so it is only a good idea if you’re looking to reduce your carbon footprint by using less coal-powered energy.

If you intend to use wind energy for all of your electricity needs, you will probably need to install more than one home wind turbine, and they will need to be a wind turbine that operates on the top of towers so that they get the most wind energy at any given time. You will also need a battery backup system to store the unused wind energy.

Although it is possible to use wind energy to take your home “off the grid”, you will probably find it difficult to do with current home wind turbine technology.

Home Wind Turbine Kit Home wind turbine has become a very popular way to generate energy for households. Those that are concerned with the fact that we continue to deplete our resources available have chosen to use this alternative because it is renewable. We are never going to run out of the wind. Home wind turbines also allow you to use all the electricity you want without feeling guilty about it.

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A home wind turbine also allows you to save money. You can have a professional do it or invest in the do it yourself kits. Those kits feature all of the items you need to get excellent results from this type of alternative energy.

By using a home wind turbine, it enhances environmental friendly purposes as well. It is an effective way to protect the Earth.

Once you have paid for the materials, you are going to be saving money each month. Your electricity bill is going to be significantly lower. You will generate so much more energy from the home wind turbine that you don’t even need to use any regular electricity. Some people are lucky enough to create even more than the use so they actually get paid for the use of home wind turbines.

Wind farms In Kenya plans are underway to create the first wind farms in sub-Saharan Africa. Wind farms have long been a staple of power grids across Europe, but Kenya’s is the first in sub-Saharan Africa. Others are planned in countries such as Ethiopia, South Africa and Tanzania. One of the companies involved in this is General Electric (GE). GE is one of the world’s leading wind turbine suppliers, with over 13,800 worldwide wind turbine installations comprising more than 20,000 MW of capacity. GE has a series called the 1.5 MW wind turbine series. GE’s 1.5 MW wind turbine series models are designed to maximize customer value by providing proven performance and reliability.

List of collaborators Gina Miller Public Affairs Coordinator America Wind Mills Association WindMail@awea.org General Electric Jim Healy Jim.healy@ge.com Southern Cross Industries info@southx.co.za Kestrel Wind Turbines Leon Gouws Leon.gouws@eveready.co.za May 2011

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Engineering Focus Week Knight Piesold participated at the Engineering Focus Week on March 14-18, 2011 in Newtown, Johannesburg. The Engineering focus is an event that aims at giving learners awareness of the engineering field.

Demo model of a stadium built from lego charity boxes

Vishan Singh Engineer in Training answering some questions after his talk

Learners listening to a talk on Civil Engineering

Vishan Singh Engineer in Training answering some questions after his talk

Left to right Vishan Singh and Neal Neervoort KP booth

Vishal Haripersad Operations Director giving a talk

Aga Khan Award for Architecture 2010 The five projects selected for the 2010 Aga Khan Award for Architecture were announced at a ceremony held at the Museum of Islamic Art in Doha, Qatar on November 24, 2010.

His Highness Sheikh Hamad bin Khalifa Al Thani the Emir of Qatar greeting His Highness the Aga Khan at the AKAA event.

Her Highness Sheikha Moza bint Nasser, His Highness Sheikh Hamad bin Khalifa Al Thani the Emir of Qatar and His Highness the Aga Khan with the recipients of the 2010 AKAA.

His Highness the Aga Khan speaking to the assembled guests at the AKAA event.

Mr. Yalcin Ayaydin, Chairman of Ipekyol Giyim Sanayi, receiving an Award for the Ipeykyol Textile Factory

Send us your well captioned high resolution ution photographs and we will feature you in n our pictorial page free of charge...

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M May 20111

May 2011

23

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Mae Ridge: Nairobi’s Middle Class Spoilt for Choice Developers in the Kenyan capital are moving fast to meet a rising demand for middle-class housing. In various parts of the capital, elegant homes are coming up at a rapid rate. Mae Ridge is one of the projects under way in the Runda area of the city that is billed as a pace-setter in terms of design.

The rapid increase of Non-Governmental Organizations (NGOs), diplomatic missions and top schools in Runda has seen the area undergo speedy development, with demand for quality housing growing every day.

Pan African Insurance Holding, developer of the Mae Ridge homes, sought to recruit architects for the design and supervision of the proposed development by competitive evaluation of proposals. In the end Triad Architects and Beglin Woods, two of Kenya’s leading architectural consultancies were awarded the job based on their remarkable architectural proposals and impressive portfolio.

The houses under development are up-market 4 and 5-bedroom family homes offering style, relaxation and outdoor living for Nairobi’s growing middle class. They range in size from 470 to 515sq.m offering all modern conveniences with environment-friendly designs incorporating microgeneration technology to supplement their own energy consumption.

Kenya

Client Project Location Architects Main Contractor Plumbing Sub-contractors Electrical Sub-contractors Joinery Sub-contractors Iron Work Sub-contractors Kitchen Sub-contractors Windows Sub-Contractors Project Managers Quantity Surveyors Civil and Structural Engineers Landscaping Selling Agents

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Pan Africa Holdings Limited Runda, Nairobi Kenya Triad Architects and Beglin Woods Architects Parbat Siyani Construction Limited Pioneer Plumbers Master Power Systems Samani Construction Iron Art Nobilia Canton Aluminium Fabricators Mentor Management with Patrick Walker YMR Partnership Howard Humphreys Really Useful Landscapes Company Kenya Valuers

One of the two designs of the Runda houses

May 2011

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Umfolozi Resort

Empangeni’s Ultimate Destination ‘Umfolozi’ loosely refers to the two meandering rivers situated in Zululand. Symbolically locals often use zigzagging patterns to denote these rivers.

Peermont Hotels Casino Resorts completed the rebranded and renamed Umfolozi Hotel Casino Convention Resort in November 2011 after completing a R115-million makeover of the original Tusk Umfolozi. The newly refurbished Umfolozi Hotel Casino Convention Resort is an enthralling get-away destination conveniently located just 15km from Richards Bay, away from the hustle and bustle of city life.

The Umfolozi Resort is a modern celebration of regional Zulu culture and offers the residents and visitors to the uMhlathuze Region a new and unique variety of entertainment, hospitality and conferencing facilities.

“The resort retains its African identity and culture with a new, contemporary design theme incorporated into all aspects of the resort from logo to room design.” says Mark Jakins, Chief Operations Officer – Online Operations and Group Marketing.

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– including a 3-star Peermont Metcourt hotel, convention centre, restaurants and an outdoor domed events venue and corporate or family action park for team building and parties.

experience and a deli serving light meals and snacks.

Hotel facilities also include secure parking, swimming pool, and wireless internet access in public areas.

Guests have direct access to the new salon privé which is adjacent to the gaming floor, with exclusive parking for privé guests. The main casino has a total of 267 slot machines and 12 tables in play with upgraded cashier booths and casino interiors.

For Business or Play The new state-of-the-art conference centre with facilities for 200 people and a multipurpose arena able to accommodate up to 500 delegates, with two breakaway rooms available. An exciting new addition is the Khikizela Action Park, a unique corporate event facility that includes entertaining activities for corporate functions and team building sessions.

The new 3-star Peermont Metcourt Hotel features 44 comfortable select services rooms; 20 classic king room, 12 superior twin rooms, 7 superior king rooms, 3 suites and 1 special assistance room. Dining is always a pleasure at Umfolozi with a range of restaurants to chose from; the F.L.A.G Café serves buffet breakfast, Sugar Room bar and lounge that screens live sporting events and music, and the Umoja Bistro where guests can enjoy an a al carté dining

Herman Brits, General Manager for the Umfolozi Resort says, “The addition of a new Peermont Metcourt hotel, conference centre and a multi-purpose events arena to our upgraded casino complex will provide guests with progressive and inexpensive accommodation, as well as much-needed meeting and entertainment facilities in the Richards Bay and Empangeni areas of northern KwaZulu– Natal.” Embracing a modern Afrocentric Design

Recently opened are the newly refurbished salon privé with 30 slot machines and 3 gaming tables .

May 2011

South Africa

Aerial artists impression Umfolozi

Connecting indigenous culture to this development, these designs are used on the hotel’s mosaic cladding at the entrance columns to the hotel & casino.

Architecturally the redesign focuses on a contemporary African identity with the intention to offer casino, hotel and conferencing guests a unique gaming experience that encompasses the richness of African culture.

“The Umfolozi Resort proposes a contemporary design theme that is responsive to the site and compliments, yet revitalises the existing architecture,” says Nisha Parbhoo of Boogertman + Partners.

“The interpretation has resulted in a textural façade that combines the use of pattern, colour, rhythm and shadow to reflect the richness and complexity of indigenous culture and customs.“

around which the homestead is built in traditional settlement patterns.

Architect: Boogertman+Partners Quantity Surveyor: Pentad

This central space is defined by curvilinear walls of the feature buffet/bar and spiral staircase, which are expressed as ‘drums’ on the external façade.

In blending traditional with modern, Umfolozi Resort has some of the latest energy efficient solutions incorporated into the design.

Site Surveyor: Alex Farrel & Associates Landscape Architects : Insite Landscape Architects Interior Designer: LLP

These include split unit ventilation systems with energy-saving heat pumps; a efficient air-cooled chiller plant and motion sensor lights, which only activate when people are in the vicinity.

Main Contractor: WBHO Civil Engineer: Vela VKE Structural Engineer: MVW

Not only is this interpreted through incorporating indigenous African design, yet the customary topography is applied to the development.

Local Investment The investment in Umfolozi Resort revitalises, not only a previously aging facility, but the surrounding community, while appreciating the regional culture and catalysing further development in the immediate area.

Resort facilities are centred by a circular stone water feature, from which a series of thresholds invite guests into the casino and hotel. The hotel is centred on a double volume entrance foyer, essentially a central open-living space

Project Team Client: Peermont Global

Fire Consultant: Chimera Fire Data

Project Manager: C-Pro

Consultant: WSP

May 2011

Electrical Engineer: Quad Africa Consulting Mechanical Engineer: Spoormaker & Partners Water & Waste: Aurecon

31

South Africa

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Kraaifontein Waste Management Facility It’s a dirty job, but someone has to do it. Managing municipal waste is not a job for the faint-hearted, yet when there are operations and equipment in place to facilitate the job—then it can be quite rewarding. The new Kraaifontein Waste Management Facility (KWMF) is such an operation.

Heralded as the ‘first of its kind’ in South Africa, KWMF optimises waste collection and recycling in a mostly mechanised process.

Though there are many facilities in the country involving a transfer station and related infrastructure, this facility is the first to include such a range of supporting operations to make it a quintessential waste management facility.

The integrated facility encompasses various components including: a 1000 tonnes/day refuse transfer station; a 100 tonnes/day materials recovery facility; a public drop-off area; facilities related to minimisation strategies; and areas for future growth / technologies.

But, it does not stop there. The new facility’s site also includes a workshop and washbay, several minor buildings, garden refuse chipping facilities and road upgrades (Sandringham Rd).

This iconic ‘integrated’ development necessitated an integral project team.

Appointed by the City of Cape Town, Jeffares & Green Consulting Engineers (in a joint venture) with G.Johardien & Associates, were appointed to undertake the civil, mechanical and electrical design and implementation of the facility.

Jeffares & Green (J&G) was responsible for the project management, civil, structural, rail roads, transportation municipal and geotechnical duties, while G. Johardien & Associates handled the May 2011

mechanical and electrical engineering. Yet, these two teams were not alone, as there was an entire project team comprising surveyors, architects, plant consultants, quantity surveyors and others.

Reducing Waste Through Recycling The facility allows a vast reduction in the cost of transporting waste to disposal and enhanced waste diversion from landfills for the purposes of recycling and bulk reuse. This inadvertently extends the lifespan of local landfills.

This is achieved via the Material Recovery Facility (MRF), which extracts recyclable solid waste from the domestic waste stream going to landfills.

The MRF incorporates a level of mechanisation to achieve the 100 ton/day process, while incorporating manual labour as a job-creating mechanism.

The concept of the MRF is to reduce the amount of waste-to-landfill deposits and return ‘technical nutrients’ in bulk into the manufacturing stream through recycling, hence facilitating environmental sustainability of the facility.

Using Innovation to Spur Sustainability Speaking of sustainability, the facility has incorporated some ‘green’ engineering principles.

Specific stormwater treatment processes were designed to control pollution and allow discharge of an acceptable effluent from the site.

Innovative technology and construction methods employed on the site furthered the efficiency of KWMF. A new type of loading magazine that handles the containers were designed and constructed. These magazines also allow liveweighing, so the operator of the facility can see—

prior to containers’ removal—whether they have been optimally filled for transporting. This loading magazine is also a first application in South Africa.

Additionally, the design includes the maximisation of use of natural lighting and ventilation, stormwater treatment, pollution control by means of litter traps, silt traps and oil traps.

In order to allow free movement of vehicles offloading waste and unhindered loading of waste on the conveyors, the unique construction of the facility’s roofing and trusses, spanning 45m in width without columns was applied.

Contributing to the Community Such a facility will undoubtebly facilitate the city’s waste management plans increasing the area’s overall hygiene. Yet, it will also provide much needed employment and training opportunities for the immediate Kraaifontein community.

Project Team Client: City of Cape Town-Solid Waste Management Lead Consultants: (joint-venture) Jeffares & Green GJA Consultants Main Contractor: Haw & Inglis Architects: Cook - Lipschitz Quantity Surveyor: DV Cape (Pty) Ltd Environmental Specialist: Megan Anderson & Associates 33

South Africa

Cape Town’s unique waste management facility ushers in a new way to take out t he t rash.

Sasol Infrachem South Africa

A new infrachem laboratory at Sasol One in Sasolburg is nearing completion, upon which it will be a culmination of best practices in global lab designs.

Sasol has invested in the development of a new laboratory to ensure heighten quality standards for its products. Sasol’s new Infrachem laboratory forms part of the company’s expansive Sasolburg Expansion Programme, aimed at increasing the capacity, utilities and sustainability of Sasol operations in Sasolburg. The Infrachem laboratories are responsible for verifying quality of products produced by the company’s various business units’ products including (waxes, solvents, ammonia, nitric acid and phenols).

laboratory. Yet, the old building will not be scrapped or demolished, as the designers have other ideas for its use after de-commissioning.

Consolidation was a paramount objective of the project, as the new structure brings into one building, a number of SASOL’s routine laboratory and Technology R&D (research and development) operations. Once completed by July 2011 the new building at the Sasol One Site’s ‘chemical campus’ in the Free State Province, will replace the current 60 year-old infrachem

The public area includes all aspects necessary for admin and corporate duties. This part of the building, located on the northern side, has various areas such as main reception, offices, a canteen, pause areas and upper management offices.

34

LAYOUT The building comprises a ground-level plus five (5) floors and is linked to the rear of the original building. Once the new building is completed, the old building will be incorporated in the new design and possibly used for storage.

The building has a dual layout to carry out its function.

The laboratory operations are on the southern side and house all the necessary equipment,

scientists and machinery necessary to perform its function. The lab is further segmented into two parts, East and West, with central administration.

The building’s northern and southern parts, both have their respective main lobbies and is linked via a central corridor. Separating the scientific and commercial components of the building was deemed necessary to minimise cross contamination between people and the samples analysis process. Much of the lab’s interior consists of drywalling, allowing for improved flexibility and functionality accommodating any need to change from one lab function to another.

DESIGN To many, the new Infrachem Lab is a structural masterpiece for SASOL and a global leader in engineering and laboratory design.

Conceiving a design that would reflect modern, yet technically-functional architecture enlisted a

May 2011

Infrachem’s exterior façade continues in this tradition, yet also includes plenty of glass for increased natural light for the laboratories.

There were a number of environmentally-sustainable solutions included into the building as well.

“Sasol conducts its business with respect and care for its people and the environment,” says Andre de Ruyter, Senior Group Executive—Operations.

complicating the design was incorporating an existing transformer in the plans. One of the factors that significantly influenced the building’s design was its location near the a transformer.

“We had to alter our design in such a way that would allow a free-zone around this transformer, it was an amazing design and engineering feat to work around it,” says Gerald Schultz of Winterbach Pretorius Letele Architects.

To this end the design includes motion-sensor lighting, limiting energy wastage when no one is in certain rooms; a water deionising plant and air-conditioning cooled by a chilled water system rather than individual split air-conditioning units.

Servicing the Lab Benches Better ergonomic-design lab benches were installed into the building, increasing flexibly and productivity. Unlike traditional benches, these have an elevated service spine for users to access data points, services and all the necessary chemicals for their analysis. The services (e.g. water, gases, extraction, etc) of the building have been placed on the building’s exterior to seamlessly supply the lab with necessary materials. These services are filtered throughout the building through a services core on the exterior of the building.

Overcoming the Odds Conceptualising a building in this site with such space restrictions was not easy. Further

This design bodes well by preventing lab interruption and downtime in case of routine maintenance or major repair needing to be

carried out on the services, as technicians will access the service core from outside of the building. The roofs of the laboratory also provide a crucial function to the operations. The primary extraction plants are situated there, as well as the external service ducts including fresh air supply.

Setting a World-Class Example Sasol desired a world-class laboratory to achieve their quality objectives and to have a facility on the par with other internationally recognised labs.

The Infrachem Lab building seamlessly achieves both of those objectives, while significantly assuring Sasol’s position in their market. “It is a significant investment for the Sasolburg site and demonstrates our commitment to our South African asset base,” concludes De Ruyter.

“It is in line with Sasol’s strategy to leverage our advanced proprietary technology and is also aligned with our longer term plans to significantly grow the chemicals businesses of the group.”

Project Team Client: Architects: Main Contractor:

SASOL WPL / Impendulo Architects Murray & Roberts

GAUTENG OFFICE Tel/Fax: 011- 918 8409 Cell: 082 824 2562 / 083 308 8389 35 Massel Rd, Beyers Park Boksburg, Johannesburg 1459 HEAD OFFICE Tel: 051 522 6409 Fax: 051 522 8813 Cell: 082 824 2562 / 083 308 8389 28 Lister St, Hospitaal Park, Bloemfontein, 9301 P.O. Box 32073, Fichardt Park, Bloemfontein, 9317

May 2011

35

South Africa

combined effort between Winterbach Pretorius Letele Architects and Sasol’s resident design team. The design is an accomplishment of aesthetics and form-fitting function in a chemically laden, industrial area. The structural design and chosen materials were influenced by environment.

Many existing buildings in Sasolburg comprise red facebrick and concrete as, these materials seem to better withstand the chemically aggressive area.

Worcester Regional Hospital Eben Donges Hospital ,a relic of the Apartheid era in design and its horrid segregation policies, has been redeveloped into the modern Worcester Hospital.

South Africa

The original hospital’s design was bland and non-transparent, while internally its dedicated corridors for different nationalities reminded patrons of the Apartheid ways. The Department of Public Works commissioned the redevelopment of the antiquated hospital into a fresh, modern and technologically advanced medical facility that would be on the par with the best private hospitals.

This hospital’s redevelopment is the prototype for remaining hospital revitalisations to occur throughout the Western Cape. As in any upgrade of an existing structure, the design was contained within a specific scope , as much of the original structure had to remain intact.

“As the new additions had to be incorporated into the existing structures, we were quite restricted in the design,” says Gustav Brink of TV3 Architects.

“Although the new building are very much different in design than the exiting, elements from the old building were used throughout.”

Additionally, a new helipad has a direct link to the Emergency Unit and was included to cater for emergency situations and disasters.

New Layout In transforming an old hospital into a new one equipped with all the facilities of modern medical developments, the extensive project had to be planned in four phases. The first three (3) phases commence in 1999 and was completed almost a decade later in 2008. Phase 4 started in 2009 and was recently completed in 2011.

The main structure of the building consists of heavy designed exposed-steel rafters over a central double volume area with red facebrick columns. These columns, together with full height glass panels, create an open, inviting ambiance. In order to achieve this, the old main building was stripped down to the point where only the concrete structure was remaining.

The newly designed 266-bed hospital now comprises a new Emergency Unit, Outpatient Department, 2 Ward Blocks, Mortuary, Theatres, Radiology Unit, a Training Facility and a Services Block for maintenance. There is also a linen bank and all the normal services associated with a hospital

The feat then became making the new main building an extension of the existing structure.

“This was challenging as rooms had to be fitted into the existing structure,” adds Brink.

The ground floor of the main building now has a central double volume space, which hosts the

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Also located on ground level is a day theatre department, which is connected to the Emergency Unit, to the north, and the Outpatients and S.T.O.P. (WHAT IS THIS) Department ,to the left.

Moving up a level on the first floor is Radiology,Therapy and the Main Administration.

This floor houses the Hospital Manager’s office,main board rooms and is linked via a bridge to the new standalone Training Facility.

The second floor has four new theatres and the carefully designed ICU (Intensive Care Unit).

In recognition of the healing properties of natural light and in a move away from traditional enclosed, isolated Government structures, the ICU has been equipped with expansive windows.

Furthermore, in keeping up with private hospital designs, all theatres and radiology rooms have been equipped with electrically-operated sliding doors—quite an achievement for South African government hospitals. A new Wards block was added increasing hospital capacity to 305 beds.

Due to this increase in beds, the existing kitchen was extended and completely refitted with a new

CSSD and offices on the floors above. Situated behind the kitchen is the service yard that includes bulk stores, workshops and administration—all of which were completely upgraded. Above the bulk stores is the new National Health Pathology Laboratory. This laboratory functions separately and is not part of the hospital. The old lab building adjacent to the Outpatients building was converted into a records archive for the hospital.

Mixing the Old with the New As the existing hospital was mainly a facebrick development, the idea was to continue this look using the same kind of brick combined with marmoran-finished sections in accentuated colours.

“The idea of creating a durable finish highlighted with some colour painted sections,” says Brink.

Internally, vinyl was used on the floors and tiles in the bathroom and public areas. Vinyl was selected for its low-maintenance, versatility in heavy-traffic areas. Tiles on the other hand, was selected to give a more upmarket look for the foyers. All sterile and germ/virus-sensitive areas were all painted with fungal resistant paint, while the kitchen floor received a polyurethane finish.

African society. Yet, in transforming a negative into many positives, the redevelopment of Worcester Hospital has created a new legacy.

The hospital now provides the area and local residents with a much needed medical facility that is capable of providing services and treatment equal to any of the country’s private medical facilities.

Additionally, Worcester Regional Hospital set the benchmark for other government hospital revitalisations and has become a facility for the community to be proud of and one that contributes to uplifting the surrounding environment.

PROJECT TEAM Client: Western Cape Government (Dept of Public Works) Mechanical Engineers: Plantech Associates Electrical Engineers: Plantech Associates DSV Consulting Engineers Structural & Civil Engineers: Aurecon Quantity Surveyors: Davis Langdon

Leaving a Lasting Legacy Apartheid left an indelible legacy which has and continues to infiltrate many sectors of South

Architects: TV3 Architects

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May 2011

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South Africa

Admissions area. The double volume spaces ends in an atrium with a translucent roof, providing natural light and a water feature, which creates a serene environment for patient recovery.

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Botswana

Botswana International University of Science &Technology Mathematics And Science Thrust The Economy Forward 40

May 2011

Botswana

Science and math are taught to pupils from a tender age for the very reason that these two subjects form the foundation of all human progress which has been recorded to date.

May 2011

41

Botswana Administration block

Science permeates our lives and informs our actions. Going deeper into the concept of science and it's importance, it is understandable why it is essential for Botswana to have a clear policy to ensure that students are doing in this subject area. In order to keep the economy growing, there is need for a new wave of educated students ready for modern scientific research, teaching and technological development.

There have been so many tremendous advances in technology over the last decade or so, in fact the pace is accelerating.

42

There have been so many tremendous advances in technology over the last decade or so, in fact the pace is accelerating. Everyday new things are discovered and with the increase in scientific knowledge, there is an increase in demand for educated students.

Furthermore, it is essential for science students to do well because without this knowledge you can't even hope to be able to modify the school systems with the intention of challenging and

encouraging students in the various branches of science. Similarly, science is also important in the international job market. The greater the advances in scientific technology, the greater the demand for workers sufficiently educated in these particular areas. Excellence in the sciences can open many doors, otherwise closed, for students.

Having seen this as an opportunity for the country’s economic advancement, the government of Botswana has taken a step to fill this void and has invested P429 million in the construction of the new Botswana International University of Science &Technology to produce these particular workers.

The new university is located in Palapye, 270km north of Botswana’s capital, Gaborone.

Construction of this state of the art facility commenced in March 2009 with an expected completion date set for January 2011.However, May 2011

Botswana Staff housing

due to unforeseen circumstances an extension had to be awarded and the project is now anticipated to be completed by August 2011.

The client is the Ministry of Education and Skills Development, representing the Botswana Government. The design and construction of this institution was done in close co-coordination with the Department of Building and Engineering Services. The end user client is Botswana International University of Science and Technology.

General Description The University is envisaged as coming on line in three major phases. The first phase will entail the creation of a small initiation project, referred to as the Founding Campus, which will cater for 256 FTE students and have an overall built area of approximately 25,479m2.The founding campus, being the core and the starting point of the university, is envisaged to be flexible to allow cohesive growth of the other 2 phases. This campus May 2011

has been divided into 4 major precincts namely; Academic Core: includes; administration block, laboratory block, library, ICT and lecture hall, multi-purpose hall, student centre, kitchen and dining and various out buildings.

Student Hostels: Two blocks of hostels each accommodating 128 students have been provided.

One block is for females and the other is intended to house the male students. The growth of the hostels allows for the creation of a courtyard that acts as spill over spaces for recreational purposes.

Staff Housing: Two building typologies have been provided for the two cadres of staff. Plot sizes for the senior houses measure approximately 600m2 while junior house plots measure approximately 450m2. Clear separation of the 2 typologies is achieved by locating them on opposite sides of the main access road to the site. Projected growth is outwards in opposite directions.

The University is envisaged as coming on line in three major phases. The first phase will entail the creation of a small initiation project, referred to as the Founding Campus, which will cater for 256 FTE students and have an overall built area of approximately 25,479sqm.

43

Botswana Administration block

Project Team •

Project Manager : Arctez

•

Main Contractor : China Civil Engineering Construction

•

Architect : Arctez

•

Architect : Tectura Architects

•

Quantity Surveyor : Kille & Danhausser

•

Quantity Surveyor : Fitzwilliam Partnership

•

Mechanical / Electrical Engineer : Systems & Services

•

Civil / Structural Engineer :ARUP

•

Civil / Structural Engineer : CCP

•

Mechanical / Electrical Engineers : North Atlantic

EARTHTEC CONSULTANCY (PTY) LTD Consulting Environmentalists, Planners and Researchers Our areas of expertise include providing environmental impact assessment services in: » Infrastructure development » Land use planning » Provision of water supply - rural and urban water supply schemes » Construction supervision on infrastructure facilities » Master plan for infrastructure development » Training in environmental impact assessment » Roads & water services, pipelines, mines etc

Plot 14417, Suite 2, Gaborone West Industrial Area P O Box 405754, Broadhurst, Gaborone Tel: +267 392 3604 Fax: +267 316 2082 E-mail: earthtec@bbi.co.bw 44

May 2011

BEYOND CREEATIVITY…Resourcing Building Soolutions

Architects Project Manag gers Interior Designers Environment

Syno opsis

Project Ma anagers and d Auditing Architects A

Botswanna Univerrsity of Sccience annd Technoology-BIUUST

Arctez was w commissione ed to provide proje ect manage ement services fo or the founding cam mpus of the New Bo otswana University of Science and TechnologyBIUST

The ‘Sttart-Up Phase’ includes the ‘design and build’ of facilitiess for a university of o 1 000 students, with an early intake of 256 stude ents per year, supp ported by 70 mic and administra ative staff academ Enrolment of first-year sttudents from Botsw wana and across Africa has been announced a for March 2011, e first academic ye ear to start in August 2011. with the

The em mphasis will be on Botswana’s naturral wealth: earth scciences, mining, energy, e water, and d the countryy’s tourism potential. Biotechnology, computing, and info ormation and com mmunications technologies are also hig ghlighted.

Project Managers and Design Arc chitects

Masa Centre The first

Recently completed d projects

• First Holidayy Inn Hotel franchise in the country • First hotel in the new CBD am mongst many plann ned • First 3D cine ema experience in n Botswana (with 3 in total in the basem ment), first twin tow wer building in new w CBD • First above g ground swimming pool in the countrry for the Hotel development, • First Casino in the new CBD, 7 floors of world class c post office boxes, 2 basement floorss office, 500 p allocated to parking, advanced d CCTV and acce ess control meassures, an internal piazza with maje estic waterfall features, roof garden ns with dry and gre een landscaping and exterior and interior tiling impo orted ed unique facade.. from Italy to convey its intende

www.arcteezͲbw.com Botswana ARCTEZ Plot 127, Unit 9, Kgale Office Park, Gaborrone Tel: +267 3165342 arctez@info o.bw

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May 2011

RIPPCO HEADQUARTERS, Gaborone

South Afric ca ARCTEZ SA A, Benmore, 2 2010, Sandton, Johannesburg J Tel: +27 11 1 4449342 arctezsa@ttelkomsa.net

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Botswana

Four co olleges are planne ed, each offering both b undergraduate and gradu uate degrees: Collleges of Engineering, Science, Te echnology, and Bu usiness and al Education.

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May 2011

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