Industrializing the Building Construction Process
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Transcript of Industrializing the Building Construction Process
Industrializing the Building Construction Process
Dr. Mohamed Al-HusseinEmail: [email protected]
1
A Real Solution
Residential Construction Material Waste Minimization
Wood, 24%
Drywall, 11%
Cardboard, 38%
Masonry, 1%
Metals, 4%
Other, 22%
(by volume)
EMISSIONS ANALYSIS: ON-SITE CONSTRUCTION CO2 EMISSIONStage Description co2 (kg)
1 Stake Out 232 Deep Services & Foundation Walls 22573 Backfill & Shallow Trenching 9264 Capping Shallow Services 10575 Framing Main & Second Joists 4826 Framing Second & Roof 7787 Roofing 5148 Siding & Rough-Ins 3819 Electrical RI & Slabs 34410 Insulation & Boarding 56211 Drywall Taping & Texture 42012 Stage 1 Finishing & Cabinets 16713 Railing & Painting 76314 Tile & Vinyl Flooring 32615 Hardwood & Stage 2 Finishing 27016 Carpet & Finals 32617 Touch-Ups & Pre-Occupancy 311
Total 9908
0 500 1000 1500 2000 2500
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23%
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CO2 Emissions from Transportation and Crew Trips
TasksDuration
(hr)Material Trips Crew Trips CO2 (kg)
Load Drywall 2 1 5t truck 46.4Drywall Boarding
32 5t picker 40.5 truck
54.4
Materialcu.yd/
1000 sq.ft.tonnes/
1000 sq.ft
Wood 6.0 0.73Gypsum 1.1 0.27Metal - -Concr./Asph. 0.04 0.05Cardboard 2.4 0.05Other 0.5 0.14
Total 10.04 1.24
Residential Low-rise
24kg of CO2 per kg of manufactured drywall1
8.64MJ/Kg of manufactured drywall2
0.76 kg CO2/sf of manufactured drywall3
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The cost of weather protection & scaffolding
Building 4-times
Replacing 7-Studnet dorms bungalows
With 5- each is 3-story in one summer
The challenge is how to assemble on site these 5 3-story each in 10-working days
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June 15
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Other level of industrialization & its
Application
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Today’s Technical Challenges
Drafting For Manufacturing (DFM)Lean Manufacturing
BIM ModelingBeyond BIM
Supporting Tools
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Industrialization creates new requirements for designCurrent Drafting software Does NOT support the
manufacturing
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ALGORITHM ANALYSIS: FRAMEX
• 3D Model
• Floor plan
45,000 + lines of Code
CUTEX: 2D-OPTIMIZATION
0
0minJj
j
0)'( mM
Tm ),,,,,( '1
11
01
23
1
23
1(%)
iii
ii
An
SW
Sheets Residual
Non-Guillotine cutting
Gilmore-Gomory
Cutting pattern
Possible cuts
Cutting pattern vector
Waste
Guillotine cutting
CUTEX: 2D-OPTIMIZATION (CON)
Waste : 2.4%
Beyond BIM: Lifting Scenario
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Scenario 1Kullman Arrangement
one building @ a time(1-Building in 2- days)
-Background Color –one day of operation-Box – module number, sequence, Advance-Present-A, B, B1 – spots for module lifting-PB1 – place building 1
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What is happening in Europe
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