Integrated Management Software for Factory Production of Modular Buildings
Table 1
Work, work time, and number of workers per process.
Category
Process
Precedence
Work description
Time (min)
No. of workers
Prestation
PS-OS-2
—
Processing of beam & column member
60
3
PS-M-1
—
Processing of plate/bracket
60
1
PS-M-2
PS-OS-1 PS-OS-2
Welding of column framework with plate/bracket
60
1
PS-A-F-1
PS-OS-1 PS-M-1
Painting and curing of beam/column framework
180
2
PS-A-F-2
PS-M-2
Welding of floor slab material and assembly of floor frame
120
2
PS-A-F-3
PS-A-F-1
Installation of deck and wire mesh
60
3
PS-A-W-1
PS-A-F-2
Pouring concrete in the floor frame
60
2
PS-A-C-1
PS-M-2
Manufacturing of short-span outer wall (welding/bolting)
15
2
PS-A-C-2
-
Manufacturing of plumbing/electrical wiring
120
2
PS-MA-1
PS-M-2 PS-A-C-1
Manufacturing of ceiling frame (welding/bolting)
120
4
PS-MA-2
PS-A-F-3 PS-A-W-1 PS-A-C-2
Assembly of module frames and installation of brace
120
1
Station
S-1
PS-MA-1
Regular welding of modular unit and repair of fireproof painting
130
2
S-2
PS-MA-2
Installation of runner and stud
120
2
S-3
S-1
Installation of gypsum board/insulation and embedded plumbing pipe at long span
90
2
S-4
S-2
Installation of gypsum board/insulation and internal stud at short span
90
2
S-5
S-3
Installation of vertical plumbing pipe, inner insulation, and A/C box
120
2
S-6
S-4
Installation of inner gypsum board, Tyvek, and electrical outlet
80
2
S-7
S-5
Installation of windows and doors
50
2
S-8
S-6 S-S-1
Installation of external wall frame, installation parallel sliding door, and arrangement of electric conduit
120
2
S-9
S-7
Installation of ceiling support
120
2
S-10
S-8
Installation of ceiling gypsum board
130
2
S-S-1
S-9
Other finish work and transportation
120
1
Poststation
WP-1
-
Manufacturing of external panel frame using jig and installation of external materials
60
1
WP-2
S-10
Apply urethane waterproofing in bathroom and installation of buffer material
30
2
WP-3
WP-1
Pouring and curing of autoclaved light-weight concrete
90
1
WP-4
WP-2
Installation of bathroom wall/floor tiles and installation of ceiling panels
60
1
WP-5
WP-3
Installation of bathroom ceramics (toilet bowl, water basin, and mirror) and electrical outlet/switch/light
30
3
EP-1
WP-4
Installation of finishing materials on bathroom floor, baseboard, and ceiling molding/finishing materials
240
1
EP-2
S-10 WP-5
Installation of bathroom light and furnishings and quality inspection
60
4
Manpower ∗ total hours
5,710 minutes (including the manpower standby time (total 580 minutes) marked with a star () in the process)
PS : prestation, S : station, OS : outsourcing, M : member, A : assembly, F : floor, W : wall, C : ceiling, MA : modular assembly, WP : wet process, EP : end process.
