Table 4: Limit missing columns and results under different span.

Span, m	Numbers of Missing Column	Maximum Members	Displacement, mm	Maximum Support Reactions, kN	Amount of Steel, kg/m2	Limit Load Factors
40m	0	Φ180×8	6	86	61.55	10.81
	2	Φ180×8	32	300 (3.49)	61.55 (1.000)	10.39
53.3m	0	Φ180×8	17	137	62.34	8.83
	2	Φ325×12	89	1162 (8.48)	62.84 (1.008)	8.52
66.6m	0	Φ180×8	48	283	92.75	6.78
	2	Φ325×12	82	1380 (4.88)	93.26 (1.005)	6.52
80m	0	Φ180×8	48	283	64.27	3.8
	3	Φ402×14	101	1597 (5.64)	64.80 (1.008)	3.42
93.3m	0	Φ180×8	84	352	64.98	3.24
	3	Φ560×16	84	2165 (6.15)	66.73 (1.027)	3.22
106.6m	0	Φ219×10	100	518	87.98	4.24
	2	Φ450×14	97	1653 (3.19)	88.68 (1.008)	4.25
120m	0	Φ245×12	131	569	86.57	4.43
	2	Φ500×16	131	1666 (2.93)	86.98 (1.005)	4.42