IBS Score Calculation Examples Kaedah Penilaian IBS Content
IBS Score Calculation Examples
Kaedah Penilaian IBS Content Scoring System (“IBS Score”) Jumlah keluasan pembinaan 1, 000 m 2 Keluasan penggunaan kaedah pasang siap (precast) beam/column/slab = 750 m 2 = 75% Keluasan penggunaan kaedah konvensional (insitu) = 250 m 2 = 25% Table 1, for precast beam/column/slab, F = 1. 0
Kaedah Penilaian IBS Content Scoring System (“IBS Score”) Jumlah keluasan pembinaan 1, 000 m 2 Keluasan penggunaan kaedah pasang siap (precast) beam/column/slab = 750 m 2 = 75% Keluasan penggunaan kaedah konvensional (insitu) = 250 m 2 = 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 m 2 Keluasan penggunaan kaedah pasang siap (precast) beam/column/slab = 750 m 2 = 75% Area using in-situ = 250 m 2 = 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, 500 m = 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, 500 m = 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 1 st floor iii) Construction roof area Total construction area = = 117. 0 m 2 351. 0 m 2 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 (m 2) 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. 0 m 2 117. 0 m 2 0. 9 (117 / 351) =0. 33 x 0. 9 x 50 =14. 9 Precast beams + in-situ column with reusable formwork (no floor) 1 st floor area = 117. 0 m 2 117. 0 m 2 0. 6 (117 / 351) =0. 33 x 0. 6 x 50 =9. 9 Roof truss using prefab roof truss Roof area = 117. 0 m 2 117. 0 m 2 1. 0 (117/351) =0. 33 x 1. 0 x 50 =16. 5 1. 00 41. 3 Total Part 1 351. 0 m 2 Part 2: Wall System External wall using precast concrete blockworks 87. 8 m 0. 5 (87. 8/167) =0. 52 x 0. 5 x 20 =5. 2 Internal wall using precast concrete panel 79. 5 m 1. 00 (79. 5/167) =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% 6 Total Part 2 167. 3 m 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 for 1 unit of condominium = 94. 4 m 2 Lift lobby area = Area for 1 floor = [94. 4 x 6 units + 140] = 706. 4 m 2 2) Structural Systems i) Tunnel formwork system ii) Roof truss: prefab steel roof truss. 140 m 2 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 (m 2) or Length (m) FACTOR i) Tunnel formwork system Total area = 706. 4 m 2 x 18 storey = 12, 715 m 2 12, 715 m 2 0. 60 12, 715 / 13, 421. 4 =0. 95 x 0. 6 x 50 =28. 5 ii) Roof truss - prefab steel Roof area = 706. 4 m 2 706. 4 m 2 1. 0 706. 4/13, 421. 4 =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 m 2 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 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 x 0. 6 x 20 =3. 72 1. 00 10. 6 i) 100% door sizes complies to MS 1064 100% 4 ii) 100% of windows complies to MS 1064 100% 4 iii) Repetition of floor height = 90% 2 iv) Vertical repetition of structure floor layout = 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 m 2 = 83 ii) Block B - 5 storey apartment Construction area, QST (building)B IBS Score(building B) = 3, 000 m 2 = 87 iii) Block C - 4 storey apartment Construction area, QST (building)C IBS Score(building C) = 3, 200 m 2 = 35 iv) Block D - 4 storey apartment Construction area, QST (building)D IBS Score(building D) = 3, 200 m 2 = 47 v) Block E - 3 storey office block Construction area, QST (building)E IBS Score(building E) = 3, 000 m 2 = 75 Total construction area (block A + B + C + D + E ) = 15, 400 m 2
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 (m 2) Coverage 1. 0 65. 1
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