Research Article

A BIM-Based Study on the Comprehensive Benefit Analysis for Prefabricated Building Projects in China

Table 1

Resource-use-related coefficients.

Sequence number12345678
Construction activitiesUse of machinery and equipmentResource-savings
MachinesDifferentialWater (m3) (TRB-PRB)Electricity (kW) (TRB)Electricity (kW) (TRB-PRB)Diesel (kg) (TRB)Diesel (kg) (TRB-PRB)

1Production, concrete pouring, and concrete curing of prefabricated components1.03
2Concrete pouring, vibration, and curing of column-beam junctions0.0150.372−0.444
3Concrete pouring, vibration, and curing of superimposed beam-slab junctions−0.160.372−0.06
4Concrete pouring, vibration, and curing of superimposed shear wall junctions−0.010.372−0.2862
5Concrete pouring, vibration, and curing of wall-column junctions−1.130.372−0.2808
6Processing, delivery, fixing, and installation of steel barsSteel bar straightening machines
40 mm/machinery one-shift/t
000.9520
7Steel bar cutting machines
40 mm/machinery one-shift/t
0.012.8890.321
8Steel bar bending machines
40 mm/machinery one-shift/t
0.0307.3830.963
9DC welding machines
32 KVA/machinery one-shift/t
0.01033.060.936
10Butt-welding machines
75 KVA/machinery one-shift/t
0.01011.0611.229
11Welding electrode drying ovens
45 × 35 × 45 (cm3)/machinery one-shift/t
0.00100.25460.0067
12Formwork setup of column-beam junctionsWoodworking circular sawing machines
500 mm/machinery one-shift/100 m2
‒0.01900.00132-0.456
13Formwork setup of wall-column junctionsWoodworking circular sawing machines
500 mm/machinery one-shift/100 m2
0.01500.001320.0036
14Splices of composite wood boardsWoodworking circular sawing machines
500 mm/machinery one-shift/100 m2
0.01100.001320.00264
15Scaffold delivery, assembly, and removalHeavy trucks
6 t/machinery one-shift/m2
0.0735000.612.37
16Vertical deliveryTower cranes 1000 kNm/machinery one-shift/100 m20.00172005.750.53
17Kicking line decoration100 m203.410.1260.126