Transcript IBS Score

IBS Score
Calculation
Examples
Kaedah Penilaian
IBS Content Scoring System (“IBS Score”)
Jumlah keluasan pembinaan 1,000 m2
Keluasan penggunaan kaedah pasang
siap (precast) beam/column/slab
= 750m2 = 75%
Keluasan penggunaan kaedah
konvensional (insitu)
= 250 m2 = 25%
Table 1, for precast beam/column/slab, F = 1.0
Kaedah Penilaian
IBS Content Scoring System (“IBS Score”)
Jumlah keluasan pembinaan 1,000 m2
Keluasan penggunaan kaedah pasang siap
(precast) beam/column/slab
= 750m2 = 75%
Keluasan penggunaan kaedah
konvensional (insitu)
= 250 m2 = 25%
Table 1, for precast beam/column/slab, F = 1.0
Table 1, for in-situ, F = 0
Kaedah Penilaian
IBS Content Scoring System (“IBS Score”)
Jumlah keluasan pembinaan 1,000 m2
Keluasan penggunaan kaedah pasang
siap (precast) beam/column/slab
= 750m2 = 75%
Area using in-situ
= 250 m2 = 25%
From Table 1, for precast beam/column/slab, F = 1.0
From Table 1, for in-situ, F = 0
Maka, bagi Part 1 (Structural System) IBS Score
= ( (75% x 1.0) + (25% x 0) ) x 50%
= 37.5 %
Kaedah Penilaian
IBS Content Scoring System (“IBS Score”)
Jumlah panjang keseluruhan dinding
ialah = 10,000 m run
Panjang dinding panel pasangsiap (precast
panel)
= 7,500m = 75%
Panjang dinding bata (brick)
= 2,500 m = 25%
Table 2, panel pasangsiap, F = 1.0
Table 2, dinding bata, F = 0
Kaedah Penilaian
IBS Content Scoring System (“IBS Score”)
Jumlah panjang keseluruhan dinding
ialah = 10,000 m run
Panjang dinding panel pasangsiap
(precast panel) = 7,500m = 75%
Panjang dinding bata (brick)
= 2,500 m = 25%
Table 2, panel pasang siap, F = 1.0
Table 2, dinding bata, F = 0
Maka, jumlah score Part 2 (Wall System)
= ( (75% x 1.0) + (25% x 0) ) x 20%
= 15%
IBS Score Calculation
&
EXAMPLE
Example 1
2-storey Terrace House
Say, from measurement taken from drawings:
1) Construction area
i) Construction area ground floor
ii) Construction area 1st floor
iii) Construction roof area
Total construction area
=
=
=
=
117.0 m2
117.0 m2
117.0 m2
351.0 m2
2)Structural Systems
i) Beams:
ii) Columns :
iii) Floor slab:
iv) Roof truss:
Precast concrete beams
In-situ concrete using steel formworks
Precast half slabs floor
Prefabricated timber roof truss.
3) Wall System
i) Internal wall:
ii) External wall:
Precast concrete panel
Precast blockworks
Other simplified construction solutions
i) Beams:
Columns:
60% complies to MS 1064
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%
AREA (m2) or
Length (m)
ELEMENTS
IBS
FACTOR(1)
COVERAGE
IBS
SCORE
Part 1: Structure Elements
Precast beams + in-situ column with reusable formwork
+ precast concrete half slab floor.
Ground floor area = 117.0m 2
117.0 m2
0.9
(117 / 351)
=0.33
0.33 x 0.9 x 50
=14.9
Precast beams + in-situ column with reusable formwork
(no floor)
1st floor area = 117.0m2
117.0 m2
0.6
(117 / 351)
=0.33
0.33 x 0.6 x 50
=9.9
Roof truss using prefab roof truss
Roof area = 117.0m2
117.0 m2
1.0
(117/351)
=0.33
0.33 x 1.0 x 50
=16.5
1.00
41.3
351.0 m2
Total Part 1
Part 2: Wall System
External wall using precast concrete blockworks
87.8m
0.5
(87.8/167)
=0.52
0.52 x 0.5 x 20
=5.2
Internal wall using precast concrete panel
79.5m
1.00
(79.5/167)
=0.48
0.48 x 1.0 x 20
=9.6
1.00
14.8
60%
2
ii) 100% of column sizing follow MS 1064 Part 10: 2001
100%
4
iii) 80% of door sizing follow MS 1064 Part 4: 2001
80%
4
iv) Horizontal repetition of structure = 100%
100%
6
Total Part 2
167.3m
Part 3: Other simplified construction solutions
i) 60% beam sizes follow MS 1064 Part 10: 2001
Total Part 3
IBS CONTENTS SCORE OF PROJECT (Part 1 + Part 2 + Part 3)
16
72.1
Example 2
18 Storey
Condominium
Say, from measurement taken from drawings:
1) Construction Area
Area for 1 unit of condominium
Lift lobby area
Area for 1 floor = [94.4 x 6 units + 140]
=
=
=
94.4 m2
140 m2
706.4 m2
2) Structural Systems
i) Tunnel formwork system
ii) Roof truss: prefab steel roof truss.
3) Wall System/ floor
i) precast blockworks (6 units + lobby area)= 263 m length
ii) 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 1064
ii) Repetition of floor to floor height
Vertical repetition of structural floor layout
=
=
90%
80%
AREA (m2) or
Length (m)
FACTOR
i) Tunnel formwork system
Total area
= 706.4m2 x 18 storey = 12,715m2
12,715 m2
0.60
12,715 / 13,421.4
=0.95
0.95 x 0.6 x50
=28.5
ii) Roof truss - prefab steel
Roof area = 706.4m2
706.4 m2
1.0
706.4/13,421.4
=0.05
0.05 x 1.0 x 50
=2.5
1.00
31.0
ELEMENTS
COVERAGE
IBS
SCORE
Part 1: Structure Elements
Total Part 1
13,421.4 m2
Part 2: Wall System
i) Internal wall: precast blockwork
Total length
= 263 m x 18 storey
4,734
0.5
4,734/6,894 =0.69
0.69 x 0.5 x 20
=6.9
ii) Tunnel formwork
Total length
= 120 m x 18 storey
2,160
0.6
2,160/6,894 =0.31
0.31x 0.6 x 20
=3.72
1.00
10.6
i) 100% door sizes complies to MS1064
100%
4
ii) 100% of windows complies to MS1064
100%
4
iii) Repetition of floor height = 90%
90%
2
iv) Vertical repetition of structure floor layout = 80%
80%
2
Total Part 2
6,894
Part 3: Other simplified construction solutions
Total Part 3
12
IBS CONTENTS SCORE OF PROJECT (Part 1 + Part 2 + Part 3)
53.6
Example 3
Ibs score for project
(group of buildings)
Project information:
- Main buildings in the development consist of 5 blocks of buildings. The
IBS score for each building are:i) Block A - 5 storey apartment
Construction area, QST (building)A
IBS Score(building A)
= 3,000 m2
= 83
ii) Block B - 5 storey apartment
Construction area, QST (building)B
IBS Score(building B)
= 3,000 m2
= 87
iii) Block C - 4 storey apartment
Construction area, QST (building)C
IBS Score(building C)
= 3,200 m2
= 35
iv) Block D - 4 storey apartment
Construction area, QST (building)D
IBS Score(building D)
= 3,200 m2
= 47
v) Block E - 3 storey office block
Construction area, QST (building)E
IBS Score(building E)
= 3,000 m2
= 75
Total construction area (block A + B + C + D + E ) = 15,400m2
IBS
Score(building)
IBS Score(project)
3,000
3000 /
15400 =
0.195
83
0.195 x 83 = 16.2
3,000
3000 /
15400 =
0.195
87
0.195 x 87 = 17.0
3,200
3200 /
15400 =
0.21
35
0.21 x 35 = 7.4
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
Block
A
B
C
D
Construction
Area (m2)
Coverage
1.0
65.1