Construction Analysis Assignment 3 - Flipbook Section 3D

ABPL20033 - Construction Analysis Dr Alberto Pugnale, Subject Coordinator Dr Sofia Colabella, Senior Tutor Aleks Baltovski, Tutor Will Scobie - 892855 - 27/09/2020 Lake Wendouree Residence, Tutorial 06 Assignment 3 Flipbook Section 3D Layers of information

Lake Wendouree Residence, photo by Peter Bennets

01

STRUCTURAL SYSTEMS BELOW GROUND

How did the site condition affect the design of the house?

4x150mm layers of engineered fill as

The existing site conditions significantly influenced the design of the Lake Wendouree house, through framing vistas, adapting to soil conditions and site boundaries and utilising solar aspect. The house is located on a north facing, extensive block overlooking Lake Wendouree in Ballarat, Victoria, Australia, a cool-mild temperate climatic zone with an average annual rainfall of 687mm. The site extends north-south, measuring approximately 75m in length and 21m in width and is relatively flat with a gradient of situated at approximately 452m above sea level. The soil type is silty clay overlying clay with relatively poor drainage, the soil report classifies the site as a Class P problem site, suggesting the use of a stiffened raft slab utilising a waffle pod system. The soil conditions also determine the use of engineered compact fill to provide known properties for compaction stress.

Furthermore, the design of the house manipulates the landscape to create varying ground levels to integrate the house into the site and connect interior and exterior spaces. The aspect is one of the key design considerations, with the design maximising framed views towards the lake and similarly utilising northern orientation for solar access, maximised through use of skylights, large windows, in-floor glass and flexible partitions. Due to the extensive length of the site, the courtyard space centres and distinguishes the various pavilions to provide adequate solar access alongside ventilation. The site is located in a residential zone along a relatively busy road so the house is set-back from the road and neighbouring properties for privacy. The form of the house is defined by interconnected pavilions, reflecting the iconic boat houses around the lake and also taking material precedence from the renowned structures at the Ballarat Botanical Gardens.

SITE PREPARATION

per soil report specifications

FOUNDATIONS

0.2mm polyethylene waterproof membrane

STRUCTURAL SYSTEMS BELOW GROUND

WAFFLE RAFT SLAB SYSTEM SUSPENDED CELLAR SLAB CONSERVATORY SLAB

WAFFLE POD

REINFORCEMENT MESH

17mm hydronic coils inbetween SL82 and SL62 mesh per mechanical

RE-ENTRANT BARS

3-N12 bars 2000mm long placed diagonally across corner, 75mm gap

PAD FOOTINGS

1000mm square 500min deep blinding concrete pad footing centred beneath columns

EDGE BEAMS cast-in plates for steel columns conservatory slab

envirocrete recycled concrete slab

3-N12 re-entrant bars hydronic heating coils SL62 reinforcement mesh

waffle pod void former

polyethylene waterproof membrane

50mm levelled sand

hydronic coils placed inbetween two layers of mesh reinforcement to ensure structural integrity

engineered fill

internal, edge beams and pad footings founded minimum 200mm into stiff clay as per soil report requirements

Isolated 110mm suspended slab used for cellar to provide extra isolation and insulation.

10mm Abelflex expansion joint installed between vertical faces

internal beams

edge beams

pad footing foundation soil with massing concrete founded 200mm in stiff clay

SECTIONAL PERSPECTIVE

1:50 at A3

0

1m

2m

3m

EXPLODED ISOMETRIC not to scale

ABPL20033 - 2020, Will Scobie | 892855 |Tutorial 06| Aleks Baltovski | p. 2

SL62

HYDRONIC COILS

SL82 reinforcement mesh

conservatory slab and stairs poured separately to main slab due to height differentiation, formwork ensures

plastic bar chairs placed on top of void formers to secure reinforcement mesh

SL41

INTERNAL BEAMS

110mm thick polystyrene waffle pods, ribs forming maximum 1200 centres, mass concreting is used to provide increased structural support in required areas

110mm thick waffle pod void formers with ribs at 1200 max centres

SL82

dropped level for masonry

waffle pod void formers used to create varying height slab and also maximising efficiency through reducing concrete required

50mm layer of sand

300 wide 600 deep 15MPa blinding concrete with 3-L12 founded 200mm minimum into stiff clay

02

STRUCTURAL SYSTEMS ABOVE GROUND

The structure is strongly interconnected with composition of architectural form and space the structural system adopted as a means of enabling the definition of space, with structural capacity and limitations ultimately STRUCTURAL SYSTEMS defining interior space. The cantilevering pavilion form is integral to the ABOVE GROUND design and hence the use of a hybrid structural system comprised of steel and timber components is necessary to provide structural integrity and material efficiency aligned with the aesthetic of JWA. The structure is How does the skilfully concealed through partitioning, cladding and veneers to produce structure define smooth, clean finishes aligned with a holistic design approach. Steel the composition of primary structural components are complemented by long-spanning timber architectural form secondary and tertiary structural members to enable the creation of large and space? open interior spaces, cantilevering forms and expansive ceiling heights.

The bespoke designs of the bedroom ceilings are facilitated by structural control through cranked beams and interconnected components, successfully abstracting the design intent of reflecting the local boat houses.

Furthermore, JWA abstract structural convention through cantilevering the bedrooms over the glass conservatory, producing structural illusion through concealing steel columns as mullions supporting the louvres

GROUND FLOOR (GF)

180UB16 galvanised steel roof beam for primary structure

FIRST FLOOR (FF)

ROOF

INTERMEDIATE FLOOR (IF)

ROOF STRUCTURE (RS)

180UB16 BEAM 2/190x45 F7 KD PINE BEAM 190x45 MGP10 PINE RAFTERS 140x45 F17KDHW CEILING JOIST 120x45 MGP10 CEILING BATTENS VARIED DEPTH ROOF TRUSS 600C

lightweight timber structural system used predominantly for first floor with stud walls braced with ply and tensioned wall bracing

NOGGINGS 90x45 / 120x45 MGP10 at 450 and

TOP PLATE

600 centres

BOTTOM PLATE

STUD WALLS

CROSS WALL BRACE PLYWOOD BRACE FLOOR JOISTS

metal straps nailed to plates Plywood staggered butt joints, nailed to noggings 150mm centres

530 DEEP LONG REACH TIMBER FLOOR TRUSS 350 DEEP LONG REACH POSISTRUT FLOOR TRUSS

100x100x8 GALVANISED ANGLE 2/150x90x8 UNEQUAL ANGLE

LINTELS

joists supported by steel beam fixed with M10 bolts for structural support, joists braced with trimmer and fixing

30x0.8mm tensioned galvanised

2/140x45 F7 KD PINE

stud wall secured with cross bracing to ensure lateral stability

310UC97 BEAMS

310UB32 300PFC

125x75x4 RHS COLUMNS

SECTIONAL PERSPECTIVE

1:50 at A3

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2m

3m

EXPLODED ISOMETRIC not to scale

ABPL20033 - 2020, Will Scobie | 892855 |Tutorial 06| Aleks Baltovski | p. 3

200x100x5 RHS 250PFC

250PFC 250UB26

89x89x6 SHS 180PFC + 10 PLATE

03

INTERNAL PARTITIONS

How do the internal partitions organise the life inside the building?

Interior space is significantly defined by internal partitions relating to the functional programme, contributing to the organisation and delineation of space. The groundfloor is demarcated by an interconnected hallway as circulatory space, with the interior walls producing thresholds between functional spaces. The kitchen space opens up with a void further connecting spaces together, with glass balustrades providing further connection. The structural system adopted enables broad open spaces with reduced requirement for internal partitioning. The ceiling structure of the bedrooms centre focus upon the skylights, enhancing light access INTERNAL NON- and providing acoustic definition. The use of flexible pivot doors reiterates notionsLOAD of interconnection between BEARING spaces, whilst also enabling privacy. Internal partitions also serve to conceal structural elements, PARTITIONS producing a clean design aesthetic. Expansive glazing components aim to connect interior and exterior spaces, sited within the designed landscape. The kitchen bench is coined ‘the world’s longest’ providing a connecting datum between conservatory, kitchen, courtyard and dining spaces. Arrangement of interior space is also intended to respectfully balance connection and privacy alongside spatial functionality, with wet areas zoned similarly and separation between semi-private and private space alongside seclusion of parental spaces at the opposite end to spaces intended for children to occupy. Operable louvres in the conservatory blur the distinction between interior and exterior space, enabling cross-ventilation and increased light access, further extended into interior space through the use of a glass pivot door connecting the conservatory and kitchen spaces together.

INTERNAL WALLS

FIXED

INTERNAL PARTITIONS

PLASTERBOARD

13mm plasterboard, water resistant used in wet areas

VILLABOARD

6mm Villaboard fully taped and scrimmed

KITCHEN BENCH

Kitchen bench serves as datum measuring 14860, steel structural rectangular hollow sections and timber frame, marble finish

MASONRY WALL

Krause Grampian blue extruded bricks, with stretcher bonds, brick veneer wall extending along eastern wall and into hallway

WINDOWS DOORS

Use of pivot doors create extension and connection of space, glass doors used providing connection / light

FLEXIBLE WINDOWS

Flexible windows provide passive cooling and ventilation as well as connection to outdoor spaces

W14 KITCHEN

W09

W10

W21

D04 LAUNDRY

D13 WC

D05 BACK DOOR

D14 BEDROOM 2

D06 GLASS PIVOT

D15 BEDROOM 3

D12 BATHROOM

D19 REAR LAUNDRY

W12 LOUVRES

W25 BEDROOM 2

W15

W26 BEDROOM 3

SKYLIGHT plasterboard fixed to ceiling structure and rendered for paint finish

SKYLIGHT

SKYLIGHT

SKYLIGHT

SKYLIGHT

W25

BEDROOM 2

D15

BATHROOM WC

W25

D14

W26

W26

D12

W25

Krause Grampian blue brick veneer wall with stretcher bonds and raked joints

LAUNDRY

plasterboard fixed to stud wall frame and rendered for paint finish

D04

D19

W15 D06

D19

W14

D05 W12

D04 W12 D05

D19 W15

SECTIONAL PERSPECTIVE

1:50 at A3

0

1m

2m

3m

EXPLODED ISOMETRIC not to scale

ABPL20033 - 2020, Will Scobie | 892855 |Tutorial 06| Aleks Baltovski | p. 4

W14

D06

04

ENVIRONMENTAL PROTECTIONS How did the architect approach the design of environmental protections? Do the elevations express or hide environmental protections?

The inclusion and design of environmental protections is successfully integrated into the holistic design of the house, concealed to reflect the clean and smooth design intent. JWA effectively adapt the design taking into consideration thermal, moisture, air, acoustic and solar environmental protections. The use of Zinc cladding provides a seamless transition between horizontal and vertical surfaces, with varying slopes for the bedroom pavilion roofs, with water collected towards the centre using a box gutter, with fall and downpipes towards the eastern, less articulated side where services are contained. The use of parapets obscures the view of roof structure and rainwater collection components to maintain a clean aesthetic and the rear elevation similarly conceals environmental protections. Throughout the design, most environmental protections are contained within partition systems and any joins and seams provide smooth transitions with flashings and cappings minimising climatic impacts through capillary action. Weepholes and expansion joints are visible in masonry walls, however have minimal impacts upon the overall design aesthetic. The concrete slab provides thermal massing properties, also containing the hydronic slab system with both concealed through stone and tole floor finishes. Design of glazing and openings maximises passive design strategies to enable cross-ventilation and passive solar heating, with shading strategies including blackout and glarecontrol recessed blinds, further reiterating the overall design aesthetic. Considering the cool-mild temperate climatic zone Ballarat is situated in, thermal insulation is crucial and is used extensively throughout the house to maintain comfortable temperatures.

ENVIRONMENTAL PROTECTIONS

MOISTURE

timber preservative and primer used to minimise weathering / ensure durability

FINISHES

galvanised / powdercoat finishes used to prevent corrosion of exposed metals AC0 K100 sloping drain embedded in

DRAIN INSULATION

THERMAL IN-01 Bradford Soundscreen Plus 2x1.6 batts 120mm R-Value 3.2 (EXTERNAL)

IN-05 Bradford Soundscreen Plus 120mm R-Value 3.0 (INTERNAL)

IN-02 Bradford Gold ceiling batts 210mm R-Value 4.1 (CEILING)

IN-06 Bradford Soundlag 4525C acoustic foam 25mm (INTERNAL DRAINS)

IN-02 Bradford Anticon 55 Roof Blanket 60mm R-Value 1.3 (CEILING)

IN-07 tongue and groove polystyrene 50mm epoxy joins (CELLAR)

IN-03 Bradford Soundscreen Plus 120mm R-Value 3.0 (INTERMEDIATE FLOOR)

Pyrotek Soundlag Silentstep carpet underlay 10mm

conservatory slab 100mm deep

DOWNPIPE

VM Zinc 100mm diameter with rain head

ROOFING

VM Zinc double lock system BMT 0.7mm

Stramit Speed Deck 700 BMT 0.42mm

430 centres with 25mm standing seam

FLASHING

Colorbond BMT 0.6mm metal sheeting with to capillary action to divert moisture

CAPPING

1:100 fall 0.6mm BMT Colorbond Ultra finish

BOX GUTTER

Colorbond custom folded eaves gutter BMT 0.6mm Gaps in masonry wall to allow moisture to drain out, expansion joint for movement

WEEPHOLE ACOUSTIC

cappings and flashings work with roof systems and box gutters to divert water away to downpipes

WATERPROOFING

AIR

SOLAR

0.2mm polyethylene damp-proof membrane

ENKAMAT

Breathable membrane placed under zinc cladding to prevent oxidation

SARKING

Dupont Tyvek Home Wrap breathable sarking

SEALANT

Silocon sealants used to reduce airflow and prevent transference of moisture

WIND LOAD

Structure is designed as per AS4055 to withstand wind loads CAT 3 E/W Vu 37m/s and CAT 2.5 N/S Vu 37m/s

COURTYARD

Courtyard essential for daylighting, thermal massing and ventilation strategies

GLAZING

Viridian ThermoTech Low E double glazed units with 12mm argon gap

SKYLIGHTS

Viridian ThermoTech Low E double glazed units with 12mm argon gap

BLINDS

Vertilex blackout / glare control blinds

insulation placed in both wall and ceiling cavities to maintain thermal comfort and promote energy efficiency through retention

suspended slab 50mm polystyrene tongue and groove insulation used to maintain coolth for cellar

bulk insulation R Value 3.2 for thermal protection and energy efficiency

SECTIONAL PERSPECTIVE

1:50 at A3

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1m

2m

3m

zinc cladding fixed to 19mm marine ply with breathable sarking placed inbetween for moisture control

EXPLODED ISOMETRIC not to scale

ABPL20033 - 2020, Will Scobie | 892855 |Tutorial 06| Aleks Baltovski | p. 5

R value 4.1 batts with R value 1.3 roof blanket ceiling insulation used to retain any heat produced and protect from solar heat

05

MECHANICAL AND ELECTRICAL SYSTEMS Did the architect organise the internal spaces to place mechanical and electrical services efficiently?

The arrangement of internal spaces is efficiently design to provide zoning of the majority of mechanical and electrical services situated towards the eastern side of the house, providing both functional benefits and aesthetic isolation. Mechanical and electrical efficiency is somewhat influenced by the use of an extensive photovoltaic system, providing sustainable on-site energy production. Key wet areas such as the cellar, laundry, upstairs bathroom and WC are efficiently located, with the ensuite and kitchen spaces isolated but situated relatively central to maximise efficiency. HVAC systems are situated in the bathroom ceiling cavity and underneath the ensuite, providing climatic control to zoned sections of the house. Hydronic slab heating is used as an energy-efficient heating system throughout the house, utilising thermal mass with upstairs bathroom and ensuite also utilising hydronic slab heating. Upstairs rooms are service hydronic wall-mounted heating units, away from glazing to maintain heating efficiency. Through the design of internal partitions and expansive ceiling cavities, services are effectively and efficiently organised to maximise building performance whilst limiting aesthetic impacts. Reducing distances required for mechanical and electrical systems not only provides functional efficiency, but also reduces material and energy waste. Electrical, communication and entertainment systems are dispersed throughout the house utilising wall and ceiling cavities. Lighting is predominantly integrated into the overall design aesthetic through the use of downlights and LED strip lighting. Overall, efficient organisation of services was not the predominant concern, but was carefully considered to maximise efficiency aligned with design intent and conditions, significantly complementing the overall design.

WATER MECHANICAL AND ELECTRICAL SYSTEMS

Water mains connected along Wendouree Parade for all potable water Hot water system included insulated piping to retain heat

ELECTRICITY General power outlets located as approved by architect and client Meter board located on eastern side adjacent to front entry, power pit front Switchboard with circuit breaker located near rear entry in data storage

photovoltaic array to provide solar energy generation - produced energy is converted through solar inverter for usage or sold to grid

Wired connection to motorised louvres and blinds Access panels provide flexible access for future modification or repair.

split system reverse cycle airconditioner and ventilation unit maintains air quality and coolth throughout zones

wall and ceiling cavities provide adequate space to run services as per electrical and mechanical drawings wet areas zoned to maintain efficient design of services

hydronic heating system used with in-floor hydronic coils and individual hydronic heating units for upstairs spaces

2m

3m

ABPL20033 - 2020, Will Scobie | 892855 |Tutorial 06| Aleks Baltovski | p. 6

Heated towel racks located in upstairs bathrooms

Independent weatherproof louvre with backdraught damper in laundry / powder

Thermostat for air conditioning system located in hallway and bedrooms

Roof mounted air cowl for exhaust fans in upstairs bathrooms / WC

Flexible windows and louvres for passive cooling and ventilation

Air conditioning / ventilation grille integrated with joinery

LIGHTING

SEWAGE

Internal lighting including down, wall, pendant, LED strip, batten and table lights

Sewer stack penetration located below upstairs WC and ensuite

External lighting including down, wall, spot, up and motion activated lights

Waste pipes located for drainage systems to remove greywater

C-Bus automated control system for light switches

Floor waste drainage pipes located in wet areas and conservatory

ENERGY PRODUCTION

SECURITY

Solar hot water system located next to photovoltaic array

not to scale

Thermostat for hydronic heating system located in hallway and upstairs living

Air conditioning condensing unit located with services on eastern boundary

Photovoltaic array with 21 panels located above the upstairs living room

EXPLODED ISOMETRIC

Hydronic heating units located in upstairs spaces

Range hood exhaust fan in kitchen with sheetmetal duct and external louvre

Existing telecommunications pit located on Wendouree Parade

1m

Hydronic slab heating system on ground floor and upstairs bathrooms

Air conditioning split-cycle located underneath ensuite and above bathroom

Intercom system with camera for visitors and deliveries

0

HEATING

VENTILATION

COMMUNICATION

1:50 at A3

Rainwater collected from roof system and diverted to water tank in front yard

COOLING

Solar inverter to invert DC to AC, located on eastern exterior with services

SECTIONAL PERSPECTIVE

Solar hot water system with hot water system booster located with services

Keyless entry pad security system to arm/ disarm alarm system Security detector with sensors as deterrence safety measure

ENTERTAINMENT Dynamic audio system utilising recessed ceiling and wall speakers Dual tv and pay tv outlets located in both living rooms

Graphic user interface for home automation system

FIRE SAFETY

Data point, wireless access point and telephone points for devices

Hardwired smoke alarm system located near kitchen and bedroom entries

06

PHYSICAL ENCLOSURE SYSTEMS Do the physical enclosures express aspects of the building, such as internal spaces, structure and materiality?

The use of physical enclosure systems reflects the overall design expression aligned with a ‘gesamtkunstwerk’ approach, concealing structure and substrate through valuing premium materiality and a clean, smooth design aesthetic.

Physical enclosure systems adopted often conceal structural elements, in an attempt to convey notions of effortlessness and simplicity, contrasting to the complex and intentionally designed arrangement of structural, partitioning, environmental protection, electrical and mechanical systems. Physical enclosure systems vary both internally and externally, however throughout the design immense emphasis is placed on quality of material through using premium stone, timber finishes. Throughout the building, bespoke joinery is designed to express and compliment internal spaces, creating unique context-specific designed joinery serving functionality whilst also . The initial design intent of creating interconnected pavilions is achieved through variations in external cladding including a range of brick, timber, zinc, steel and glass finishes. Floor finishes include a variety elegant smooth stone and tile finishes, concealing the concrete but maintaining functionality in accordance with the hydronic heating system.

Bedrooms include soft carpet for comfort and privacy, with timber flooring used for the living room areas.

Viridian ThermoTech Low E double glazed with 12mm argon gap clear finish

GLAZING

JOINERY

Spotted gum 130x19mm tongue and groove timber floorboards fixed to yellow tongue particleboard with nails Pryanese raj brown sandstone paving random sizes 20-40mm thickness, drytreat stain proof finish for conservatory

INTERNAL

INTERIOR WALL PHYSICAL ENCLOSURE SYSTEMS

Spotted Gum crown cut timber veneer panels, mitred junctions / end match used for bedroom joinery, data and kitchen Artedomus Bianco marble stone fixed to particleboard substrate, 20mm thick, square edge with 2mm mitred corner Ash white plastic laminate for laundry bench and cupboard with melamine internal finish of draws and cupboards

FLOORING

13mm plasterboard, water resistant used in wet areas MDF skirting flush with plasterboard, 100mm nominal height, 16mm thickness

FINISHING PA-01 Haymes Premium 100 low sheen, low toxicity paint used for interior walls PA-02 Haymes Ultra Premium ceiling white low VOC low toxicity paint used for interior ceilings

Artedomus New Ground Silver 600x300mm floor tile 2mm joint width Ceramic white 300x100mm bathroom tile, 6mm thick and 2mm joint width Artedomus Pietra bronze brushed 600x300mm stone, 12-15mm thickness with pre-sealer and Basoil sealer - living room Picotage Luna Pearl 3.66mm broadloom wool carpet laid on Pyrotek Soundlag underlay in upstairs bedrooms Stramit Speed Deck 700 BMT 0.42mm Colorbond Dune colour, concealed fixings

CLADDING

VM Zinc double lock system BMT 0.7mm 430 centres with 25mm standing seam Spotted gum vertical ship lap boards 128x19mm with concealed fix

EXTERNAL

EXTERIOR WALL

Krause Grampian blue brick veneer wall with stretcher bonds and raked joints Artificial landscape with undulating topography linking spaces

tiled finish in bathroom areas with spotted gum veneer for joinery

Concrete slab poured on eastern boundary for access to services

LANDSCAPING

Concrete slab poured on eastern boundary for access to services Pool in backyard with Cotto 48x48 tiles midnight colour, 5mm thickness

VM Zinc double lock cladding for roof and wall cladding

Stramit Speed Deck 700 Colorbond Dune roof system

Pryanese sandstone paving random sizes 20-40mm thickness courtyard / steps

carpeted bedroom spaces with spotted gum timber veneer joinery

Krause Grampian blue brick veneer wall with stretcher bonds and raked joints

SECTIONAL PERSPECTIVE

1:50 at A3

0

1m

2m

3m

EXPLODED ISOMETRIC not to scale

ABPL20033 - 2020, Will Scobie | 892855 |Tutorial 06| Aleks Baltovski | p. 7

Artedomus Bianco marble stone kitchen bench with steel structure

spotted gum timber flooring finish for upstairs living room