REG 360 INDUSTRIALISED BUILDING SYSTEM
REG360: INDUSTRIALISED
BUILDING SYSTEM
LECTURE 4: IBS SCORE
IN MALAYSIA
Sr Dr Md Azree Othuman Mydin
School of Housing, Building & Planning
Universiti Sains Malaysia
azree@usm.my
Contents
IBS Score?
Development of IBS Score in Malaysia
Assessment of IBS Score
Amendment of IBS Score
Fundamental of MS 1064
Example calculation: IBS Score
In-class assignment (IBS Score)
IBS Score
WHAT IS IBS SCORE?
Systematic and structured assessment
system that can be used to measure
the usage of Industrialised Building
Systems (IBS) in a consistent way.
Sets out the IBS Score formula, the IBS
Factor for each of the elements used
in the building, methods of calculating
the IBS Score, explanatory notes, as
well as sample calculations
OBJECTIVES OF IBS SCORE?
1. Provide a well-structured
assessment system for
calculating the IBS Score
2. Provide complete guidance
to all professional to evaluate
the IBS Score for any building
project
PRINCIPLES OF IBS SCORE
1. The use of prefabricated and precast components
2. Off-site production of components
3. The use standardized components
4. Repeatability
5. Design building component based on Malaysian
Standard Guide to Modular Coordination in Building, MS
1064.
Prinsip IBS SCORE
The use of prefabricate components
100% in factory
control environment
quality product
fulfil the spec
Prinsip IBS SCORE
Off-site Production of components
made in factory
maximum supervision
quality production
according to standard
no disturbance (weather
etc)
Prinsip IBS SCORE
The use standardized components
based on Malaysian
Standard MS1064
towards open system
concept
maximize production
reduce raw material
wastage
expand market
opportunities
Increase competitiveness
10
Prinsip IBS SCORE
Repeatability
ease manufacturing and
fabrication
reduce production cost
reduce material cost
easy monitoring
IBS Score Implementation Indicator
IBS SCORE (%)
100
70
50
Labour on site
Organize and
safe site
Material wastage
Component
quality
Material usage
Project
completion
30
11
Development of IBS Score In Malaysia
IBS DEVELOPMENT IN MALAYSIA
IBS Roadmap 2003-2010
IBS
Strategic
Plan 1999
Construction Industry Master Plan
2006-2015
Diluluskan
oleh
Kabinet
1999 2001
Malaysia IBS
International
Exhibition
06 (MIIE06)
IBS
Roadmap
Review
2008-2010
Malaysia IBS
International
Exhibition
09 (MIIE09)
2003 2004 2005 2006 2007 2008 2009 2010
MS 1064: Modular
Coordination as
Guideline for Building
Design
2015
Manual for IBS
Content Scoring
CIS18 2010:
Diterbitkan
Manual for IBS
Content Scoring
Diterbitkan
Circular issued on
IBS by Treasury on
25 July 2005
Follow-up Treasury
Circular on IBS issued
on 31 Oct 2008
Encourage
Mandate
IBS
Roadmap
2011-2015
Approved by the
Cabinet on 9 July 2010
IBS Score Usage
IBS
Score
30%
2004
IBS
Score
50%
2005
IBS
Score
70%
2008
SPP Bil 7/2008
CIDB Levi Exemption for
housing project as
follow:
LC
LMC
MC
CIDB for all housing
projects
All government
projects should use
70% IBS
IBS SCORE AMENDMENT
PINDAAN IBS SCORE
16
Changes in IBS Score and System Component
Structural
System
Other Simplified
System
Wall
System
IBS SCORE 2010
50%
30%
20% = 100%
IBS SCORE 2004
50%
20%
30%
100%
IBS Score Evaluation
Pengiraan IBS SCORE
Section 1 : Structure System
Roof Structure
Column
Floor
Section 2 : Wall System
Wall
Section 3 : Other Simplified
Construction Solutions
Modular MS 1064
18
Repetitiveness
Component Percentage
Section 1 : Structure System
Section 2 : Wall System
Section 3 : Other Simplified Construction
Solutions
IBS Structure
System
50%
IBS Wall
System
20%
Other
Simplified
Construction
30%
= 100%
19
20
Rational Distribution of Components
Rational
Structure System
75% of the
construction work
involve wet trade
Wall System
There are a lot of IBS
components available
in the market
Other Simplified
Construction
Solutions
Encourage the usage
of standard
component and the
utilization of same
repetition component
IBS Component: 50%
Section 1: IBS Structural System
Precast components i.e. Beam,
Column & Slab.
Precast load bearing wall
Steel column and beam
Timber frame system
Prefabricated/Precut Roof
system
21
IBS Component :20%
Section 2: IBS Wall System
Precast concrete panel
Metal cladding
Prefabricated timber panel
Drywall system
Precision blockworks
Full height glass panel
22
IBS Component:30%
Section 3: Other Simplified Construction Solutions
The use of standard component
according to MS1064
The layout of the repetition
structure
Other pre-fab components
23
PRINCIPLE OF IBS SCORE CALCULATION
Formula IBS Score
STRUCTURAL SYSTEM
WALL SYSTEM
OTHER SIMPLIFIED
CONSTRUCTION
SOLUTIONS
25
Calculation Principle
1.Structural system
-
Points are awarded based on structural system used
Allocation based on % of floor area that utilises the
structural system
Point =
Q
50 S
Q
ST
F S
Qs Area of construction system is used
Qst Total construction area of the building
Fs from Table 1
Calculation Principle
1. Structural system
Sub-structure works (elements) are not taken into account in the calculation
e.g. Piling, ground beam, ground slab, underground car park etc)
The construction area includes car porch but excluding driveway, apron and
landscaped areas.
Calculation Principle
Table 1: IBS Factor: Structural System
Calculation Principle
Roof
: Roof truss using prefab roof truss
Roof
Beam
Column
: precast beam
: insitu column with reusable
formwork
No floor :
First floor
Beam
Column
Slab
: precast beam
: insitu column with reusable
formwork
:precast concrete half floor slab
Ground floor
Exercise 1
Question
What is the IBS Factor for the following Structural components?
(Refer Table 1)
1. Insitu concrete floor with timber forwork + insitu column with timber
formwork + precast beam = 0.4
2. Insitu beam with timber formwork + Insitu column with timber
formwork + steel flooring = 0.6
3. Precast colum + Precast concrete floor + Precast beam = 1.0
4. In-situ beams with reusable formwork + In-situ concrete floor using
timber formwork + In-situ column using reusable formwork = 0.3
5. Steel beams + In-situ concrete flooring with reusable formwork +
Steel columns = 0.7
Calculation Principle
2. Wall system
-
Points are awarded based on the wall system used
Allocation based on the % of the length of the wall
system used
Point
Qw Length of wall system is used
Qst Total wall length of the building
Fw from Table 2
Calculation Principle
2. Wall system
-
External basement wall for earth retaining purposes
and toilet cubicle partition walls are excluded from the
calculation. For cavity wall, consider the two separate
skins as a wall.
Parapet and corridor must be counted in the
calculation
Table 2: IBS Factor: Wall System
Notes (Table 2)
3. Other simplifying features
-
Points are awarded based on the utilisation of
construction methods or solutions that can
contribute to the objectives of IBS.
S
Point = 30%
Prinsip Pengiraan
3. Other simplifying features
-
Use of standardised components; MS1064
(Beams, columns, walls, slab, windows, door)
Repeating features grids, floor ht, etc
Vertical repetitions, horizontal repetition
Points from Table 3
TABLE 3 : IBS SCORE FOR OTHER SIMPLIFIED CONSTCRUTION SOLUTIONS
Formula IBS Score
STRUCTURAL SYSTEM
WALL SYSTEM
OTHER SIMPLIFIED
CONSTRUCTION
SOLUTIONS
37
In-Class Discussion III
IBS Scoring
In-class Assignment = IBS Scoring
1) Construction area
i) Construction area ground floor = 117.0m2
ii) Construction area 1st floor = 117.0 m2
iii) Construction roof area = 117.0 m2
iv) Length of external wall using precast concrete blocks = 87.8 m
v) Length of internal wall using precast concrete panel = 79.5 m
2) Structural Systems
i) Beams : Precast concrete beams
ii) Columns : In-situ concrete using steel formworks
iii) Floor slab : Precast half slabs floor
iv) Roof truss : Prefabricated timber roof truss.
3) Wall System
i) Internal wall : Precast concrete panel
ii) External wall : Precast blockworks
4) Other simplified construction solutions
i) Beams : 60% complies to MS 1064
ii) Columns : 100% complies to MS 1064
iii) Walls and slabs : Less than 50% complies to MS 1064
iv) Doors : 80% complies to MS 1064
v) Windows : 0% complies to MS 1064
vi) Horizontal repetition of structure : 100%
