Local and Global Interactive Buckling Capacity of Thin-Walled Box-Section Members of BS700 High-Strength Steel under Axial Compression

Table 5

Comparison between the test results and finite element simulation results of local and global interactive buckling.

Specimen	λx	λy	λny	Pus (kN)	Put (kN)	(Pus − Put)/Put (%)	Py (kN)	Put/Py
LC1	27.42	27.5	0.5318	715.5	700.9	2.08	917.8	0.7637
LC2	37.13	37.16	0.7187	682.2	692.1	−1.43	926.6	0.7469
LC3	47.22	46.33	0.8961	695.2	672.6	3.36	906.5	0.7420
LC4	55.98	56.10	1.0851	581.6	609.8	−4.62	990.9	0.6154
LC5	65.55	66.12	1.2791	474.6	490.2	−3.18	993.5	0.4934
LC6	31.33	40.64	0.7862	621.2	612.1	1.49	765.1	0.8000
LC7	38.98	50.44	0.9756	592.3	604.1	−1.95	804.7	0.7507
LC8	44.44	57.39	1.1101	459.8	483.2	−4.84	806.8	0.5989
LC9	58.94	76.6	1.4817	352.6	367.2	−3.98	825.3	0.4449
LC10	73.67	96.15	1.8599	225.2	238.6	−5.62	846.9	0.2817