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Setia Precast Sdn Bhd

IBS SCORING IN MALAYSIA

HOW CAN CIDB AND INDUSTRY PLAYERS WORK

HAND IN HAND TO PROMOTE USAGE OF IBS

IBS SCORING SYSTEM & CASE STUDY

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CONTENT :

1) IBS SCORING SYSTEM2) CASE STUDY 1 – RESIDENTIAL3) CASE STUDY 2 – NON-RESIDENTIAL4) FURTHER ENHANCEMENT TO IBS SCORE SYSTEM5) CONCLUSION

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1. IBS Scoring System – IBS Score

First Published : January 2005First Revision : April 2010

Objective :-

To provide a systematic and structuredassessment system to measure theusage of IBS in a consistent way.

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2. Emphasis of IBS Scoring System

- The use of fabricated and precast components.- Off-site production of components- The use of standardised components- Repeatability- Modular Coordination (MC) in building MS1064

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Components of IBS Scores

Part 1

Structural Systems (Table 1) (50 IBS Points)

Full IBS Factors :- Precast Concrete Columns, Beams &

Slabs- Prefabricated Steel Structures- Timber Framed System

Partial IBS Factors :- Reusable System Formworks for in-

situ concrete structures

Nil IBS Factor :- Timber Formwork

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IBS Scoring Attributes

Part 1

Roof (Table 1A)

Full IBS Factors :- Prefab Timber Roof Truss - Prefab Metal Roof Truss

Partial IBS Factors :- Precut Metal Roof Truss

Nil IBS Factors :- Timber Roof Trusses


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Total Score for Part 1

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Part 2

Wall Systems(20 IBS Points)

Full IBS Factors :- Precast Concrete Panel- Wall Cladding- Prefabricated Timber Panel- Full Height Galss Panel- Dry Wall System- Pre-Assemble Blockwall

Partial IBS Factors :- In-situ Concrete With Reusable

System Formwork- Blockwork System

Nil IBS Factors :- Common Brickwall


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Total Score for Part 2

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Part 3

Other Simplified Construction Solutions(30 IBS Points)

Emphasis on :

- Utilisation of MS1064 Guidelines

- Horizontal & Vertical Repetition

- Buildability


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Case Study 1 - ResidentialSeri Jati Apartment, Setia Alam948 Units, 6 Blocks, 10 Storey Apartment in a single phase development

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CONSTRUCTION SYSTEMS


Conventional Construction

- Foundation

- Ground Floor

- Transfer Beam

- RC Slab

Precast Components

- Precast Load Bearing Walls

- Precast Non-Bearing Walls

- Precast Staircases & Landing Slabs

- Precast Lift Core Walls

- Precast Bathroom Slabs

- Precast Air-Cond Ledges

In-Situ Typical Floor Slabs

Precast Walls for Roof

Prefabricated Steel Roof Trusses

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IBS Score for Seri Jati Part 1 :

Part 1 39.1 / 50

Scoring point :

Use Precast Structural Frames

with in-situ concrete floor using

Reusable System Formwork13


IBS Score for Seri Jati Part 2 & 3:

Part 2 18.8 / 20

Part 3 24.0 / 30

81.9 /100

Scoring point :

Use Precast Walls

Follow MS1064

Vertical & Horizontal Repetition14


IBS Score Advantages- Project has high degree of repetitions for both horizontal and vertical plain.- Architectural and Structural designs with precast intention to capitalise on

precast advantages.- High economy of scale with >900 units apartment with a single unit layout.- Construction logistic is fully considered at planning stage

e.g. wall layout, work sequencing, crane’s capacity and movement.

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IBS Score Disadvantages- Brickwork/plastering in stand alone amenities building, box-out for M&E

services/risers and kitchen/yard walls.- Non-compliance in Modular Coordination for structural elements and

architectural design input.

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An exciting external facade with different architecture features reduce the

monotonous of the internal repetitive layout.

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No columns and projected beams

Consistent squareness

Consistent quality

Steel moulds provide consistent quality

in architecture features

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Case Study 2 – Non-ResidentialHospital Kuala Lumpur (SACCHKL)

FLOOR HEIGHT : 9 STOREYS

FLOOR AREA : 600,000 SQ

USAGE : DAY CARE SPECIALIST CENTRE

COME WITH OPERATION THEATRES

: BUILT IN 3 FLOORS OF INTERNAL CARPARKS

OTHERS : SEPARATE M&E BLOCKS

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ACCHKL - Method to Achieve 70% IBS Score Requirementa) Columns : Sizes are too heavy for lifting if in precast

components.Cast in-situ using aluminium formwork

b) Beams : Precast components by Setia Precast

c) Slabs : All wet areas are in-situ constructionOther areas used Precast Hollow Core Slabby Eastern Pretech supported by PC Beamsfrom Setia Precast

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ACCHKL - Method to Achieve 70% IBS Score Requirementd) Walls : Structural walls used aluminium formwork & other internal and external walls

Lightweight Blocks

e) Staircases : Precast

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Part 1

39.2 / 50

Part 2

15.0 / 30

Part 3

16.0 / 20

Total

70.2 /100

IBS Score :

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Crane Passage

Internal Crane Passage – Maximise Cranage Radius

Area 1

Area 1

Area 2

Area 1 : Construction up to Roof Level

Area 2 : Remain void for crane movement while

constructing Area 1.: Construct each bay up to RF

and crane retreat to next bay and repeat sequence.

Area 1

Area 1

Area 1 Area 1

Area 2

Logistic Planning to resolve proximity of existing buildings and roads

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Completed External Facade

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Completed Internal Views

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Further Enhancement to IBS Score System1. Prefabrication

a) Bathroom Pods/Prefabricated Pre-finished Volumetric Construction (PPVC )

- Truly industrialised system of construction, prefabrication and assembled at factory.

- Eliminate on-site brickworks, plastering, tilings, waterproofing, site wirings and plumbing works and fittings the smallest room with the most number of trades.

- Previous IBS Score (2005) allows a maximum of 1 point at Part 3 Prefabricated Components.

- Proposed to increase IBS points at Part 2 as it comes complete with wall system and finishes.

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Further Enhancement to IBS Score System

b) Off-site prefabrication of reinforcement cage for columns, beams and walls

- To consider additional points under previous IBS Score Part 3 (Other labour savingproduct / solution).

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2. Elimination of Labour Intensive Process

a) Use of skin walls/cladding to conceal wirings and pipings, instead of traditional hacking and plastering.

- Process is clean and systematic- Good quality finished surface- No hacking of RC walls and brickworks


Further Enhancement to IBS Score System

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b) Replacement of brickwalls by using Dry Wall System (including cementitiouspanels and gypsum boards).

- Bricklaying is a labour intensive process- Involved lot of construction logistic in moving bricks, sand, cement, water, mixing

equipment, scaffoldings etc. for work to be executed.- Wet & dirty- Dry wall system is clean, fast, labour efficient and quality is easily control

Where apply as a full replacement for brickwalls, should be incentively considered under previous IBS Score Part 3 (Other labour saving solution).

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2005 2010

a) Propose Revision to IBS Score Part 3 2010

- Reinstate 2005 Part 3 Item 3 (Other Prefabricated Component and Labour SavingSolution) to include more prefab structural / finished components e.g.prefab staircases, prefab bathroom unit & unitized building modules.

3. Revision of IBS Score 2010

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Conclusion

To target a higher IBS Score :

1) Design shall be modular coordinated, compliance to MS1064 (Utilisation of Standardise Components).

2) Developers & Contractors to plan for the use of IBS from the beginning includingany simplified construction method.

3) Prefabrications where possible.

4) Minimise labour intensive works where possible e.g. brickwork & plastering.

5) Developers should have a preference for IBS construction so that the project sitesare cleaner, less labour intensive and better quality.

6) Contractors should always be looking at more efficient construction methods.

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THANK

YOU

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Documents

HOW CAN CIDB AND INDUSTRY PLAYERS WORK HAND …rehdainstitute.com/wp-content/uploads/2017/05/4.-Kow-Choong-Ming.pdf · HOW CAN CIDB AND INDUSTRY PLAYERS WORK HAND IN HAND TO PROMOTE