BUILDING TECHNOLOGY 1 [ARC 3512] PROJECT 2: ADVANCED ROOF & INDUSTRIALIZED BUILDING SYSTEM TUTOR: MS. CHERYL CHUA SOR HONG
0315561
FEIVEN CHEE
0312004
MUHAMMAD HAZIQ BIN ARIFFIN
0311763
OH KENG YEE, ALEXIS
0312501
VOON JIA WEN
0312703
THAM MIN YANG
1007P79681
1.0 Precedent Studies 1.1 IKEA Damansara 1.1.1
Introduction to Project
3
1.1.2
Orthographic Drawings
4
1.1.3
IBS Components
7
1.1.4
IBS Installation Methods
8
1.1.5
IBS Connections & Joints
14
1.2 Office for Waste Management, Munich 1.2.1
Introduction to Project
15
1.2.2
Orthographic Drawings
16
1.0
Precedent Studies 1.1 IKEA Damansara 1.1.1
Introduction to Project Project Name
: IKEA Damansara
Location
: Mutiara Damansara, Selangor, Malaysia
Architect
: TJ Ong Architect
Developer
: IKANO Corporation Sdn. Bhd.
Size
: 75,000 sqm
Completion
: 2003
IBS started in Malaysia in the early 1960’s. The Industrialized Building Systems (IBS) is a construction process that utilizes techniques, products, components, or building systems which situated in the thriving new township of Mutiara Damansara in Petaling Jaya, Selangor, this IKEA store is the largest dedicated home furnishing retailer in Malaysia and biggest IKEA store in Asia. The store spans 33,450m2 over three levels as well as another two levels of underground car parking. Construction was completed in a mere 15 months due to the utilization of the Industrialized Building System. This led him to win the prestigious Fiabci Malaysia Property Award of Distinction 2004 under Best Retail Developments. 1.1.2
Orthographic Drawings
Figure 2: Basement 1 Plan
Figure 1: Basement 2 Plan
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Figure 5: Ground Floor Plan
Figure 4: First Floor Plan
Figure 3: Roof Plan
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1.1.3
IBS Components
Precast Hollow Core Slab
RC Flat Slab
RC Staircase
Precast Steel Roof Truss
Reason: Cost effective, quick
Reason: No joints reduces risk
Reason: Quick and no fuss
Reason:
to assemble, light self-weight
of water seeping through
For all the other floors above
Basement
is
The reinforced concrete stairs
The steel members of the roof
of
precast
constructed by a whole level
IKEA used was a precast of a
truss were precast off site
the rebar, they can
hollow core slabs were used.
of reinforced concrete flat
double flight stairs with a
while the assembling of the
be assembled on site
The precast hollow core slab
slab. With the nature of a
landing. A piece of cast in
individual members of the
with minimal labour.
in IKEA has longitudinal cores
basement
slab,
situ reinforced concrete flat
trusses
The
the
to reduce the weight of the
waterproofing was an issue
slab was casted at the edge
welded on site as IKEA is a
columns can be pre-
floors. The hollow core slab
and the lack of joining and
of the stairs flight to connect
large scale building, thus has
set into various sizes
used in IKEA is 300mm wide
grouting work was ideal. The
it with the hollow core slab.
a
that are needed.
and has 200mm wide core.
floor slabs are cast in situ with
Precast reinforced concrete
Above lays a 100mm thick
formwork set up and rebar as
stairs were used for IKEA as it
layer of finishing.
reinforcement.
is
was fast to assemble and it
the
delivers what IKEA needed as
Precast Columns Reason:
Speed
of
construction After and
the
moulding
pre-stressing
sizes
of
of
Basement
2,
then
2
poured
of
Concrete
formwork and let to dry.
and
lightweight
IKEA
over
Quick
a
warehouse
long
were
span
bolted
of
and
trusses
shopping
centre concept without any excessively elaborate design.
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1.1.4
IBS Installation Methods General Proper planning and preparatory works are required before erection of precast concrete elements to ensure efficient and quality installation. The following steps should be carefully planned:
Method and sequence of assembly and erection
Method of providing temporary supports
Provision for final structural connections and joint details
Erection tolerances
Handling and rigging requirements
Prior to the installation of the precast concrete elements, it is important to consider the following work items and checks listed as below:
Check for site accessibility for the delivery of precast elements
Check delivery checklist for correct type, quantity and panel identification
Check for adequate crane capacity and working clearance for hoisting of precast concrete elements
Conduct measurement to confirm on the accuracy of the critical dimensions of precast concrete elements and openings
Conduct visual inspection on concrete finishes and check for any major defects
Installation of Vertical Precast Component Installation sequence: i.
Setting out
Set reference line and offset line to determine the position of the precast elements to be installed
Check the accuracy of the offset lines
Check the shim plate level and stability
For vertical precast component check the positions and alignment of the starter bars before hoisting for installation
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Provide level pads (or shim plates) for setting the level of the elements. Set the level pads in position using non-shrink mortar
For precast external wall/ column, fix the compressible form or backer rod on the outer perimeters of wall
Check that the compressible form or backer rod are properly secured
ii.
Lifting and Installation
Lift and rig the panel to its designated location with the use of wire ropes
Check the hoisting condition of the precast element
Check alignment and verticality of the panel. If necessary, adjust the temporary propping to achieve the level and position of the precast element
Adjust the panel to position and secure it with diagonal props
Check the stability of the erected props before releasing the hoisting cable
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iii.
Grouting Work
Prepare and apply non-shrink mortar to seaI the gaps along the bottom edge of the inner side of the panel
Check that the joint widths between panels are within design allowances before grouting
For corrugated pipe sleeve or splice sleeve connection, prepare and pour non-shrink grout or proprietary grout into the pipe inlets provided
Non-shrink grout used at the interface with the precast elements should preferably be free flowing and self-compacting in nature so as to ensure good compaction at the joint and to minimize the risk of cracking
Non-shrink grout should be prepared in accordance with the specifications
Keep the installed panels undisturbed for at least 24 hours
Check that all horizontal joints are properly sealed
Collect sample test cubes of the grout mix used for critical elements such loading bearing walls for testing
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iv.
Joint Casting and Sealing
For panels with cast in-situ joints, install the joint rebar as required
The joint rebar should be correctly placed in accordance with the design specifications
The formwork should be properly secured during the casting operation of the joint
Set up forms for the casting of the vertical joint
Carry out concrete casting
Remove forms after sufficient concrete strength has been achieved
For joints between facade walls or between external columns with beams or walls elements, approved sealant and grout will be installed at later stage
For panel with welded connection, place the connecting plate between the panels and carry out welding as per design requirement
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Installation of Horizontal Precast Component The method and sequence of installing the precast slabs and beams (which is also applicable to other horizontal components): i.
Setting out
Set reference line and offset line to determine the required alignment and level of the precast slab/beam elements during installation
Check the accuracy of the offset lines
Check the level and stability of the shim plates
Before hoisting, check that the dimensions and alignment of the protruding bars are within the specified tolerance, to prevent any obstruction during the erection process
ii.
Lifting and Installation
Put up temporary props to support the precast slab/beam elements
Beam elements should be supported at minimum two locations during hoisting
Lift and rig the elements to designated location with the use of wire ropes
Balcony planter ledge and slab should be supported at more than two locations, depending on the dimensions of the elements and design consideration
Align and check level to suit the required setting out before placement of precast members to final position
It is important to check on the levelness of the precast elements as well as between the elements before proceeding to do the jointing works
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iii.
Casting of Joint
For components with cast in-situ joints, place and lap the rebar as required
The joint rebar should be correctly placed in accordance with the design specifications
Set up the formwork for the casting of the joint
The formwork should be properly secured during casting of the in- situ joint
Supporting beams can be designed to form part of the formwork for the casting of joint
Carry out concrete casting
Remove forms after sufficient concrete strength has been achieved
http://www.bca.gov.sg/professionals/iquas/others/precastinstallation.pdf
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1.1.5
IBS Connections & Joints
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1.2 Office for Waste Management, Munich 1.2.1
Introduction to Project Architects
: Kurt Ackermann and Partners
Location
: Munich, Germany
Function
: Industrial, car park
Material
: Fiberglass coated with PTFE
Covered surface
: 8400m2
Length
: 75m
Width
: 125m The protected parking facilities for the city's 150 refuse vehicles form one section of a three-part complex erected for the municipal Office for Waste Management. The roof over the
vehicle port is a point-supported membrane structure in translucent PTFE-coated glass-fibre fabric. The parking areas are laid out on two levels, consisting of an open concrete upper deck erected within a solid tank structure sunk into the ground. The deck also accommodates changing rooms and showers for 500 refuse workers. More than 8400 m² in area, the tent roof is supported by a grid of 88 steel columns laid out at 10 x 12 m centres. The membrane itself consists of 12 m pre-cut strips welded together on site. The inner columns are protected against ramming by concrete plinths and have flexible seating at the base. Horizontal loads are transmitted via raking peripheral columns to the lower-floor structure. Each of the 70 bays of the membrane is tensioned by a central steel suspended column on the underside. The roof is drained by a vacuum system within the main steel columns. The lightweight membrane construction was facilitated by the fact that it contains no members subject to bending. It was designed as a structurally continuous area, with thin steel cables on top of the skin articulating the individual bays. 1.2.2
Orthographic Drawings
Figure 6: Ground Floor Plan
Figure 7: Site Context
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Figure 8: North Elevation/West Elevation
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