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

Table 12

Design targets and test results for the produced MCO beams.

Design factors	Design targets	Test results
Verification of CTQ
Welding length per unit length (m/m)	Less than 2	2
Moment of inertia per unit sectional area of beam (cm^2)	Larger than 150	Average 183.86
Weight of floor beams per unit area (kN/m^2)
6 m span	Less than 0.25	0.18
7.5 m span	Less than 0.28	0.25
8.1 m span	Less than 0.35	0.32
Pilot test
Pilot production of beam	Flexural deformation is less than 0.05%	Less than 0.05%
Pilot assembly of module	Tolerance of 3 mm	Less than 3 mm