ibs score calculation.ppt

8/10/2019 IBS Score Calculation.ppt

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IBS Score

Calculation

Examples



Kaedah Penilaian

IBS Content Scoring System (“IBS Score”)

Keluasan penggunaan kaedah pasangsiap (precast) beam/column/slab

= 750m2 = 75%

Table 1, for precast beam/column/slab, F = 1.0

Keluasan penggunaan kaedahkonvensional (insitu)

= 250 m2 = 25%

Jumlah keluasan pembinaan 1,000 m2



Kaedah Penilaian


Keluasan penggunaan kaedah pasang siap

(precast) beam/column/slab= 750m2 = 75%

Table 1, for precast beam/column/slab, F = 1.0

Table 1, for in-situ, F = 0

Keluasan penggunaan kaedahkonvensional (insitu)

= 250 m2 = 25%




Kaedah Penilaian


Keluasan penggunaan kaedah pasangsiap (precast) beam/column/slab

= 750m2 = 75%

From Table 1, for precast beam/column/slab, F = 1.0

From Table 1, for in-situ, F = 0

Area using in-situ

= 250 m2 = 25%


Maka, bagi Part 1 (Structural System) IBS Score= ( (75% x 1.0) + (25% x 0) ) x 50%

= 37.5 %



Kaedah Penilaian


Panjang dinding panel pasangsiap (precast

panel)= 7,500m = 75%

Table 2, panel pasangsiap, F = 1.0

Table 2, dinding bata, F = 0

Panjang dinding bata (brick)

= 2,500 m = 25%

Jumlah panjang keseluruhan dinding

ialah = 10,000 m run



Panjang dinding panel pasangsiap

(precast panel) = 7,500m = 75%

Table 2, panel pasang siap, F = 1.0

Table 2, dinding bata, F = 0

Panjang dinding bata (brick)

= 2,500 m = 25%

Jumlah panjang keseluruhan dinding

ialah = 10,000 m run

Maka, jumlah score Part 2 (Wall System)

= ( (75% x 1.0) + (25% x 0) ) x 20%= 15%

Kaedah Penilaian




EXAMPLE

IBS Score Calculation

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Example 1

2-storey Terrace House



Say, from measurement taken from drawings:

1) Construction area

i) Construction area ground floor = 117.0 m2ii) Construction area 1st floor = 117.0 m2

iii) Construction roof area = 117.0 m2

Total construction area = 351.0 m2

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



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%



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

16 Total 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

14.81.00 167.3m Total 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

41.3 1.00 351.0 m2 Total Part 1

0.33 x 1.0 x 50

=16.5

(117/351)

=0.331.0117.0 m2

Roof truss using prefab roof truss

Roof area = 117.0m2

0.33 x 0.6 x 50

=9.9

(117 / 351)

=0.330.6117.0 m2

Precast beams + in-situ column with reusable formwork

(no floor)

1st floor area = 117.0m2

0.33 x 0.9 x 50

=14.9

(117 / 351)

=0.330.9117.0 m2

Precast beams + in-situ column with reusable formwork+ precast concrete half slab floor.

Ground floor area = 117.0m2

Part 1: Structure Elements

IBS

SCORE COVERAGE

IBS

FACTOR(1)

AREA (m2) or

Length (m) ELEMENTS



Example 2

18 StoreyCondominium



Say, from measurement taken from drawings:

1) Construction Area Area for 1 unit of condominium = 94.4 m2

Lift lobby area = 140 m2 Area for 1 floor = [94.4 x 6 units + 140] = 706.4 m2

2) Structural Systems i) Tunnel formwork systemii) Roof truss: prefab steel roof truss.

3) Wall System/ floor i) precast blockworks (6 units + lobby area)= 263 m lengthii) Tunnel formwork (6 units + lobby area) = 120 m length

4) Other simplified construction solutions i) Doors : 100% comply to MS 1064

Windows: 100% comply to MS 1064ii) Repetition of floor to floor height = 90%

Vertical repetition of structural floor layout = 80%


http://slidepdf.com/reader/full/ibs-score-calculationppt 18/2153.6 IBS CONTENTS SCORE OF PROJECT (Part 1 + Part 2 + Part 3)

12 Total Part 3

280%iv) Vertical repetition of structure floor layout = 80%

290%iii) Repetition of floor height = 90%

4100%ii) 100% of windows complies to MS1064

4100%i) 100% door sizes complies to MS1064

Part 3: Other simplified construction solutions

Total Part 2 10.61.006,894

0.31x 0.6 x 20

=3.722,160/6,894 =0.310.62,160

ii) Tunnel formwork

Total length= 120 m x 18 storey

0.69 x 0.5 x 20

=6.94,734/6,894 =0.690.54,734

i) Internal wall: precast blockwork

Total length

= 263 m x 18 storey

Part 2: Wall System

31.0 1.0013,421.4 m2 Total Part 1

0.05 x 1.0 x 50

=2.5

706.4/13,421.4

=0.05

1.0706.4 m2 ii) Roof truss - prefab steel

Roof area = 706.4m2

0.95 x 0.6 x50

=28.5

12,715 / 13,421.4

=0.950.6012,715 m2

i) Tunnel formwork system

Total area

= 706.4m2 x 18 storey = 12,715m2

Part 1: Structure Elements

IBS

SCORE COVERAGE FACTOR

AREA (m2) or

Length (m) ELEMENTS



Example 3

Ibs score for project (group

of buildings)

Pro ect n ormat on:



Pro ect n ormat on:- Main buildings in the development consist of 5 blocks of buildings. TheIBS score for each building are:-

i) Block A - 5 storey apartmentConstruction area, QST (building)A = 3,000 m2IBS Score(building A) = 83

ii) Block B - 5 storey apartmentConstruction area, QST (building)B = 3,000 m2IBS Score(building B) = 87

iii) Block C - 4 storey apartmentConstruction area, QST (building)C = 3,200 m2IBS Score(building C) = 35

iv) Block D - 4 storey apartment

Construction area, QST (building)D = 3,200 m2IBS Score(building D) = 47

v) Block E - 3 storey office blockConstruction area, QST (building)E = 3,000 m2IBS Score(building E) = 75

Total construction area (block A + B + C + D + E ) = 15,400m2



Block Construction

Area (m2) Coverage

IBS

Score(building) IBS Score(project)

A 3,000

3000 /

15400 =

0.195

83 0.195 x 83 = 16.2

B 3,000

3000 /

15400 =

0.195

87 0.195 x 87 = 17.0

C 3,200

3200 /

15400 =

0.21

35 0.21 x 35 = 7.4

D 3,200

3200 /

15400 =

0.21

47 0.21 x 47 = 9.9

E 3,000

3000 /

15400 =

0.195

75 0.195 x 75 = 14.6

Total 15,400 1.0 65.1

ibs score calculation.ppt

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