cc206 - bab 4 ibs score new

8/13/2019 Cc206 - Bab 4 Ibs Score New

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I SSCOREMd Nasir Bin Md SafarJKA, POLITEKNIK SULTAN ABDUL HALIM

MUADZAM SHAH.


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DEFINITION

A structured and

systematically evaluation

systemsUsed to measure the content

usage of IBS components in

a building


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PRINCIPLE OF IBS SCORE

The use of prefabricated and precast concrete

components

Off-site production of components

The use of standardized components

Repeatability

Design using MC concept


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HIGHERIBS SCOREREFLECT:

Clean environment

Quality

safe

Faster completion

workers on site

Wastage

Site materials

Total cost

100

70

50

30

Total IBS Score (%)

= +


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5

Modular MS 1064

PART 3 : OTHER SIMPLIFIED CONSTRUCTION

Repetitiveness

PART 1 : STRUCTURAL SYSTEMtrusses

ColumnSlab

PART 2 : WALL SYSTEM

Internal wall

External wall

IBS CONTENT SCORING SYSTEM (IBS SCORE)


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IBS CONTENT SCORING SYSTEM (IBS SCORE)

MAX IBS Score for a building is = 100 pointsThe IBS Score is made up of the following components :

Part 1: Structural System, Max= 50 points

Part 2: Wall System, Max= 20 points

Part 3: Other Simplified Construction

Solutions, Max= 30 points

+IBS SKOR 2010 50p + =20p 30p 100p

Part 1 Part 2 Part 3


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7

STRUCTURAL SYSTEM WALL SYSTEM

OTHER SIMPLIFIED

CONSTRUCTION

SOLUTIONS

Formula IBS Score


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CALCULATION PRINSIP1. 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)


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Table 1: IBS Factor: Structural System


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Table 1A: IBS Factor: Roof System


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Beam : precast beam

Column : insitu column with reusable

formwork

Slab :precast concrete half floor slab

Ground floor

First floor

Roof

Beam : precast beam

Column : insitu column with reusable

formwork

No floor :

Roof : Roof truss using prefab roof truss


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STRUCTURALSYSTEM :NOTES TABLE 1)1.Precast concrete slabs include half slab, hollow core slab and

precast prestressed plank.

2. Reusable formworks include plastics, fiberglass, Steel,aluminium and other metal formworks that can be used notless than 20 cycles

3. Timber formwork (timber roof trusses) means the timbercomponents are sized, cut and fabricated in-situ to form theformworks and the required temporary works.


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5. The factor for tunnel formwork system is 0.6

8. For other structural systems not mentioned in the table

please refer to IBS Centre, CIDBfor the factor.

6. Load-bearing blockwork include interlocking block, concrete

mansory unit, hollow and lightweight block

7. This is structures without floor.

STRUCTURALSYSTEM:NOTES TABLE1)


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EXERCISE1

Question

What is the IBS Factor for the following Structural components?

(Refer Table 1 & 1A)

1. Ground Floor

i) Precast Concrete beamii) Column with timber formwork

iii) All slab pre-stress plank except toilet area insitu

2. Roofi) Prefab roof truss.


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EXERCISE1Question

What is the IBS Factorfor the following Structural components?

(Refer Table 1 & 1A)

1. Ground Floor

i) Precast Concrete beamii) Column with timber formwork = 0.8

iii) All slab pre-stress plank except toilet area insitu

2. Roofi) Prefab roof truss = 1.0


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2. Wall system- Points are awarded based on the wall system

used

- Allocation based on the % of the length of thewall system used

Point =

Qw Length of wall system is used

Qst Total wall length of the building

Fw from Table 2


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Table 2: IBS Factor: Wall System


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1. Precast concrete panels include sandwich panel, solidpanel, hollow core panel and bay-window.

2. Wall cladding consists of panel actings as wall or facade

and not as a skim to brickwall

3. For full height windows, use the IBS factor for panel glass.

For wall with non-full height windows, take the highest or

the widest materials.

4. Pre-assemble brickwall/blockwall means brick that being

laid in form of a panel and transported to site.

5. Wall constructed using tunnel formworks, use Factor 0.6

WALL SYSTEM: NOTES (TABLE 2)


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- Points are awarded based on the utilisation ofconstruction methods or solutions that cancontribute to the objectives of IBS.

Point = 30%S

3. Other Simplified Construction

- Use of standardised components; MS1064

(Beams, columns, walls, slab, windows, door)- Repeating features Vertical repetitions, horizontal

repetition


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TABLE 3 : IBS SCORE FOR OTHER SIMPLIFIED CONSTCRUTION SOLUTIONS


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OTHERSIMPLIFIEDCONSTRUCTION: NOTES(TABLE3)

1. Refer to MS 1064: Pt 4: 2001 ( Coordinating sizes andPreferred sizes for doorsets.

2. Refer to MS 1064: Pt 5: 2001 (Coordinating sizes andPreferred sizes for window sets.

3. Refer to MS 1064:Pt 10: 2001 ( Coordinating sizes andPreferred sizes for reinforced concrete components.

4. For structure using load bearing wall system, 8 marks isgiven automatically

5. For non-concrete beams columns and slabs, 4 marks isgiven automatically for each component


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EXAMPLE

IBS Score Calculation


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Double Storey TerraceHouse


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Say, from measurement taken from drawings:

1) Construction area

i) Construction area ground floor = 117.0 m2ii) Construction area 1st floor = 117.0 m2iii) Construction roof area = 117.0 m2Total construction area = 351.0 m2

2)Structural Systems

i) Beams: Precast concrete beamsii) Columns : In-situ concrete using steel formworksiii) Floor slab: Precast half slabs flooriv) Roof truss: Prefabricated timber roof truss.

3) Wall Systemi) Internal wall: Precast concrete panelii) External wall: Precast blockworks


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Other simplified construction solutions

i) Beams: 60% complies to MS 1064

Columns: 100% complies to MS 1064

Walls and slabs: Less than 50% complies to MS 1064

Doors : 80% complies to MS 1064

Windows: 0% complies to MS 1064

ii) Horizontal repetition of structure = 100%


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75.6IBS CONTENTS SCORE OF PROJECT (Part 1 + Part 2 + Part 3)

16Total Part 3

6100%iv) Horizontal repetition of structure = 100%

480%iii) 80% of door sizing follow MS 1064 Part 4: 2001

4100%ii) 100% of column sizing follow MS 1064 Part 10:

2001

260%i) 60% beam sizes follow MS 1064 Part 10: 2001

Part 3: Other simplified construction solutions

14.81.00167.3mTotal Part 2

0.48 x 1.0 x 20

=9.6

(79.5/167)

=0.481.0079.5mInternal wall using precast concrete panel

0.52 x 0.5 x 20

=5.2

(87.8/167)

=0.520.587.8mExternal wall using precast concrete blockworks

Part 2: Wall System

44.61.00351.0 m2Total Part 1

0.33 x 1.0 x 50

=16.5

(117/351)

=0.331.0117.0m2

Roof truss using prefab roof truss

Roof area = 117.0m2

0.33 x 0.8 x 50

=13.2

(117 / 351)

=0.330.8117.0 m2

Precast beams + in-situ column with reusable

formwork (no floor)

1stfloor area = 117.0m2

0.33 x 0.9 x 50

=14.9

(117 / 351)

=0.330.9117.0m2

Precast beams + in-situ column with reusable

formwork + precast concrete half slab floor.Ground floor area = 117.0m2

Part 1: Structure Elements

IBS

SCORECOVERAGE

IBS

FACTOR

AREA (m2) or

Length (m)ELEMENTS


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THANKYOU

cc206 - bab 4 ibs score new

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