Lowering Housing Development Costs Towards A More...
Transcript of Lowering Housing Development Costs Towards A More...
Lowering Housing Development Costs Towards A More
Sustainable Housing Market:
Divergent Dwelling Design (D3) Experience
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Ir. Dr Zuhairi Abd. Hamid, FAScChief Executive Officer of CREAM
Construction Research Institute of Malaysia (CREAM)
• Affordable housing in the past has never been
designed to last.
• Its aimed to provide short term solution for
maximum number of houses in the shortest
possible time-to meet urgent housing demand
Affordable Housing
ADEQUATE and AFFORDABLE HOUSINGis one of the main challenges faced by developing
countries like Malaysia which is heading towards the status of a high income nation.
This challenge requires an integrated solution that is through the combination of
SCIENCE, TECHNOLOGY AND INNOVATION
(Source : NAPIC)
NO. OF RESIDENTIAL PROPERTY TRANSACTION
BASED ON PRICE RANGE
Considering the trend of property appreciation has shifted towards low end to middle-high-end, supply of affordable houses range RM200K to RM500k are expected to increased in the future.
(Source: MPC 2016)
FOREIGN WORKERS IN MALAYSIA
In Malaysia, construction industries was recorded as the industry with
the lowest productivity level compared
to other industries
Comparison of Workers’ Productivity based on Sectors
Percentage of High-skilled & Low-skilled Foreign Workers in the Construction Sector
(Source: MPC 2016)
0.0
10.0
20.0
30.0
40.0
50.0
60.0
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Construction Agriculture Manufacturing Services^ Total
(Source: MOHA, EPU)
Percentage Comparison of Foreign Workers based on Sectors
FOREIGN WORKERS IN MALAYSIA
Most construction companies in Malaysia are still inclined towards the recruitment of unskilled foreign labour who are willing to work in unfavourable conditions with lower pay.
CURRENT AFFORDABLE HOUSING CHALLENGES
• Rooms too hot• Kitchen space too
small and inefficient• 3rd bedroom often not
habitable• Insufficient
courtyard area
• Insufficient natural lighting
OCCUPANTS
* Source: survey conducted by University Putra Malaysia (UPM).
D3 stands for Divergent Dwelling Design which focuses on affordability,adaptability, quality and sustainability via a collaboration between Sime DarbyProperty and CREAM (research arm of CIDB).
Objectives:
Benefits:
• Improves standard of living without the penalty of high prices
• Improves livability with superior designs
• Improves construction speed with the use of Industrialized Building System (IBS)
• Improves site safety and lower labor dependency via off-site fabrication
• Reduces material wastage and preliminary cost through modularization
An innovative design and construction method to improve the quality of affordable homes that creates value on a massive scale.
To meet the affordable housing needs of the nation with quality homes
To adopt higher IBS content in line with the National Construction Industry Road Map to enhance construction time, quality and cost.
“A combined design and construction system that makes use of the prefabricationconstruction to produce a variety of housing design options that meet potential userrequirements not yet identified at the design stage, while retaining principal uniformity tofacilitate the execution of simple but accurate construction with a minimal initial cost”
VS
D3 mass housing
design
(900sqft)
Common mass housing
design
(900sqft)
KECEKAPAN RUANGNEW INNOVATION DESIGN CONCEPT
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NEW INNOVATION DESIGN CONCEPT
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NEW INNOVATION DESIGN CONCEPT
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NEW INNOVATION DESIGN CONCEPT
“Fragmentation of dwelling into
independent design units that enable
mass production and mass
customisation”
DESIGN METHODOLOGY
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From Craftsmanship to Manufacturing
DESIGN METHODOLOGY
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Divergence Construction Methodology
The divergent nature of D3 allows each dwelling pods, such as bathroom, kitchen and wall partition, to be built, altered and renewed independent of others. The detailing of the pods was based on criteria of rapid assembly process; the use of repetitive units and guarantee quality through precision.
CONSTRUCTION EFFICIENCY
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IBS COMPONENT
COMPONENT 1Cast In Situ Shear WallSize : 250 mm thick
COMPONENT 2Precast ColumnSize : 450 Mm X 1100 Mm
COMPONENT 3Precast BeamSize : 250 X 550 Mm
COMPONENT 4Precast Plank SlabSize : 150 X 1200 X 6500 Mm
COMPONENT 6Precast Acotect WallSize : 100 mm Thick
COMPONENT 8Prefab Toilet / Bath UnitSize : 1550 X 1950 X 2350 MmQuantity : 2 Nos.
NON-IBS COMPONENT
COMPONENT 5Prefab Aluminium Sliding Door Adj. LouversSize : 1600 X 2100 mm
COMPONENT 7Ceramic Floor TilesSize : 400 X 400 mm
COMPONENT 9Prefab Ms RailingSize : 1200 mm AFFL
COMPONENT 10Plumbing and M&E
KECEKAPAN PEMBINAAN
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1
32
7
4
9
8
5
CONSTRUCTION EFFICIENCY
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PREFABRICATED TOILET POD
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Ceiling, Wall and Floor are made of SMC (Sheet Moulding Compound) material
PREFABRICATED TOILET POD
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IBS Structure System - 38 points
• Precut metal roof truss• PC column, beam and slab• In-situ column, beam and slab
with reusable system formwork
D3 RSKU IBS SCORE
IBS Wall System - 13 points
• Dry Wall System• In-situ concrete with reusable
system formwork
Other IBS System - 28 points
• Utilisation of standardized components based on MS 1064
• Repetition of structural Layout
Total IBS Score:
79 points
IBS SCORE
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Recessed external wall
Cross ventilation Urban farming
Wall set back
Indoor-outdoor living
Natural lighting
• Reduce interior temperature• Maximise airflow rate• Provide protection from sunlight
and rain.
ENERGY EFFICIENCY – PASSIVE DESIGN STRATEGY
Recessed external
wall
Urban farmingCross
ventilation
Indoor-outdoor
living
ENERGY EFFICIENCY – PASSIVE DESIGN STRATEGY
MOA SIGNING CEREMONY on 26 JANUARY 2017
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MOA SIGNING CEREMONY on 26 JANUARY 2017
Tajaan R&D
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PROTOTYPE & PILOT PROJECT SITE LOCATION
KEY PLAN
D3(Lot 52051)• Prototype Gallery
cum Project Site Office
• 0.53ac
RSKU (EG2)• Apartment 562 units• 7.33ac
To study energy efficiency functions of D3 design
To study customer feedback towards D3 design
To study customer feedback on the usage of construction materials and IBS building techniques
To materialise and commercialiseD3SH research into reality
PROTOTYPE
Township : Elmina West
Lot No. : PT 54367
Area : 7.33 acre
No. of unit : 562 units ; 76.6 unit/acre
Density : 79% Residential (5.78 acre)
Landuse : 21% Commercial (1.54 acre)
Total GFA : 763.307 sqft
D3 Pilot Project
Type C – 900 sqft98 units
Type D – 1000 sqft464 units
PILOT PROJECT
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RSKU(EG2)Apartments 562 Units
7.33ac
RSKU TYPE C & D allow direct cost comparison with SDP’s existing D&B BBR 17A RSKU
contract
NEAR TO AMENITIES -schools & linkage to existing
Saujana Utama neighbourhood
CORNER PLOT OFFERING
OPTIMUM VIEW EXPOSURE
LOCATED ON NEUTRAL SITE without close proximity to
sewerage plant or HT elec tower
TO SAUJANA UTAMA
SITE CONTEXT
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BLOCKA
BLOCK B
BLOCKC
MULTILEVEL CARPARK
SH
OPLO
TS
SURAU MPH
JALAN
CASU
ARIN
A
SITE PLAN
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TYPICAL FLOOR LAYOUT
Typical Floor Plan – Block B – 10 units = 9JD + 1JC
Typical Floor Plan – Block A & C – 10 units = 8JD + 21JC
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NORTH ELEVATION
PODIUM (SIDE)TOWER C (SIDE)
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SECTION - BLOCK A
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SECTION - BLOCK B
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SECTION - BLOCK C
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ENVIRONMENTAL ANALYSIS
Shadow analysis Computational Fluid Dynamic (CFD) analysis
Daylight Factor analysis
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3D PERSPECTIVE
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3D PERSPECTIVE
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3D PERSPECTIVE
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3D PERSPECTIVE