Experimental Study and Effective Width Method for Cold-Formed Steel Lipped Channel Stud Columns with Holes

Table 4

Comparison of buckling modes and ultimate capacities of stud columns with holes.

Specimen	Test buckling mode	FEA buckling mode	Pt (kN)	Decreasing of load capacities (%)	PA (kN)	PM (kN)	Pt/PA	PM/Pt
C9008-03-NH-1	L	L	41.13	—	41.97	39.48	0.98	0.96
C9008-03-NH-2	L	L	42.22	—	43.53	39.26	0.97	0.94
C9008-03-CH3-1	L	L	39.97	4.09	41.21	39.17	0.97	0.98
C9008-03-CH3-2	L	L	40.23	3.47	41.05	39.02	0.98	0.97
C9008-03-CH5-1	L	L	38.85	6.78	40.05	38.46	0.97	0.99
C9008-03-CH5-2	L	L	38.71	7.11	41.12	38.67	0.99	0.95
C9008-03-CH7-1	L + D	L + D	34.77	16.57	35.81	32.44	0.95	0.94
C9008-03-CH7-2	L + D	L + D	35.49	14.84	37.88	34.39	0.94	0.96
C9008-03-RH2-1	L	L	39.87	4.33	43.16	38.94	0.97	0.93
C9008-03-RH2-2	L	L	39.52	5.17	41.60	38.73	0.95	0.98
C9008-03-RH4-1	L	L	39.24	5.84	40.04	38.06	0.98	0.97
C9008-03-RH4-2	L	L	38.96	6.51	43.16	37.14	0.94	0.94
C9008-03-RH6-1	L + D	L + D	35.91	13.83	37.80	34.11	0.95	0.95
C9008-03-RH6-2	L + D	L + D	36.14	13.28	36.88	33.97	0.98	0.94
C10010-05-NH-1	L + D	L + D	52.31	—	53.70	50.22	0.96	0.96
C10010-05-NH-2	L + D	L + D	52.48	—	54.67	49.33	0.96	0.94
C10010-05-CH3-1	L + D	L + D	51.68	1.17	52.76	49.61	0.98	0.96
C10010-05-CH3-2	L + D	L + D	51.19	2.11	52.77	49.65	0.97	0.97
C10010-05-CH5-1	L + D	L + D	51.01	2.45	53.39	47.95	0.96	0.94
C10010-05-CH5-2	L + D	L + D	50.54	3.35	53.20	48.01	0.95	0.95
C10010-05-CH7-1	L + D	L + D	45.53	12.91	48.44	41.89	0.94	0.92
C10010-05-CH7-2	L + D	L + D	45.76	12.47	47.67	42.56	0.96	0.93
C10010-05-RH2-1	L + D	L + D	51.95	0.66	53.01	50.39	0.98	0.97
C10010-05-RH2-2	L + D	L + D	51.48	1.56	52.53	47.36	0.98	0.92
C10010-05-RH4-1	L + D	L + D	51.10	2.28	53.23	50.08	0.96	0.98
C10010-05-RH4-2	L + D	L + D	50.22	3.96	51.77	47.71	0.97	0.95
C10010-05-RH6-1	L + D	L + D	46.19	11.65	49.14	44.80	0.94	0.97
C10010-05-RH6-2	L + D	L + D	44.12	15.60	45.96	41.47	0.96	0.94
Average							0.9639	0.9571
Standard deviation							0.0147	0.0186
Coefficient of variation							0.0153	0.0194