1 KING FAHD UNIVERSITY CIVIL ENGINEERING DEPARTMENT A New Prefab Panel As a flooring slab Web Grid...
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Transcript of 1 KING FAHD UNIVERSITY CIVIL ENGINEERING DEPARTMENT A New Prefab Panel As a flooring slab Web Grid...
![Page 1: 1 KING FAHD UNIVERSITY CIVIL ENGINEERING DEPARTMENT A New Prefab Panel As a flooring slab Web Grid Core Panel ABDUL FATTAH DARWISH.](https://reader035.fdocuments.us/reader035/viewer/2022070400/56649ef65503460f94c0a9bc/html5/thumbnails/1.jpg)
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KING FAHD UNIVERSITYCIVIL ENGINEERING DEPARTMENT
A New Prefab Panel As a flooring slab
Web Grid Core Panel
ABDUL FATTAH DARWISH
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Subjects
The Problem ? Panel Description Structural Study Economical Study Comparison conclusion
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Problems ? High Dead Loads in buildings ?
D/L ≥ 2 In ordinary buildings D/L = 1 In Hollow Core Slab ?
Construction Cost & Time Slab Cost @70% of Skelton Slab Time @ 75% of Skelton Time
Earthquake Disasters Mass & Height
Environmental Impacts of Concrete Roads & Crushing Plants Problems
Energy Loss
Crushing Plants,Transportation & Construction
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Panel Description
Components Web Grid Core Cladding Plats Filling Material Connecting Devices
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Panel Description
Strength Points Very Light : 10% of concrete Weight Very strong : 50 cm for 20x20 m Could be one or two way slab action Reduce @ 50% of Building Weight Reduce @20% of skeleton cost Reduce construction time Reusable,Removable and adjustable Easy to transport & install
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Panel Description
Improving points Water Proofing Fire & Heat Resistance Electric Conductivity Sound Resistance Connecting Devices
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Data Dimensions are: 6 x 6 x 0.20 meter Pinned supports all around All elements are 1.5 mm thick. Total load is 300 kg/m2
Results Max. stress is 0.15 t/cm2 Max Deflection 1.0 mm
Structural Study
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Stress isometric
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Top Plate Stress 0.15 t/cm2
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Bottom Plate Stress 0.13 t/cm2
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Central Rib Stress 0.13 t/cm2
Deflection is 1mm
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Data: 10 floors building Floor area 12X12 m Current prices for ribbed slab Result: 20 % Reduction in skeleton cost
if we use the new panel
Economical study
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Comparison against:
Solid Slab Ribbed Slab Hollow Core Slab Siporex
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Deflection
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
Solid slab Ribbed Hollowcore Siporx WGCP
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Density (t/m3)
0
0.5
1
1.5
2
2.5
Solid slab Ribbed Hollowcore Siporx WGCP
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Cost (SR/m3)
0
200
400
600
800
1000
1200
Solid slab Ribbed HollowCore
Siporx WGCP
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Installing Time (day)
0
2
4
6
8
10
12
14
16
Solid Ribbed H.core Siporx WGCP
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Manufacturing Time (weeks)
0
1
2
3
4
5
6
7
8
Hollow core Siporx WGCP
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Achievements
Load Reduction (> 50%) Cost Reduction (>20%) Saving Victims in earthquakes Environmental Benefits Energy Savings
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Conclusion It has strength points It has improving points A Feasibility study should be done
to ensure : Performance Manufacturing Use & Cost
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Questions