Development of an Efficient Steel Beam Section for Modular Construction Based on Six-Sigma

Table 5

Classification of key functions for the steel modular beam section.

Main process	Manufacturing beams	Assembly of modules	Transportation and installing	Ensuring structural performance
Must be functions	—	Welding end-plate; Connecting beam and column; Connecting beam and slab; Connecting beam and ceiling track; Connecting beam and wall track	Transportation of modules	Flexural strength of beam; Shear strength of beam; Minimize deflection of beam; Minimize floor vibration; Earthquake and wind resistance; Fire resistance
Delighter functions	—	—	Plumbing equipment penetration	—
Primary satisfier functions	Minimize a space for stock	—	—	—