A New Simple Method for the Strength of High-Strength Steel Thin-Walled Box Columns Subjected to Axial Force and Biaxial End Moments

Table 2

Comparisons between the available experimental results and those obtained according to ANSI/AISC 360-10 and the proposed formulas, respectively.

Literature	b/t	h/t	t (mm)	λx	λy	ex (mm)	ey (mm)	fy (N/mm^2)	(kN)	ANSI/AISC 360-10 (1)	Proposed formulas (2)
Richard Liew et al. [16]	29.5	29.8	3.05	85.3	85.4	15	0	353	209.99	1.35	1.09
	29.5	29.8	3.05	85.3	85.4	5	10	353	224.62	1.57	1.19
	29.2	29.2	3.05	87.1	83.3	5	5	353	254.37	1.81	1.20
	43.9	44.6	3.05	57.2	57.6	15	0	353	325.30	1.15	0.98
	44.2	44.2	3.05	57.5	57.3	5	15	353	312.24	1.13	1.02
	44.2	44.2	3.05	57.5	57.3	15	15	353	286.74	1.21	1.09
	52.4	52.4	3.05	48.8	48.7	20	0	353	324.73	1.06	0.91
	52.4	52.4	3.05	48.8	48.7	15	10	353	338.72	1.14	1.03
	52.1	51.8	3.05	49.1	48.8	10	10	353	348.63	1.11	1.00
	64.2	64.2	1.87	64.4	64.2	0	10	268	114.39	0.95	0.96
	64.2	63.7	1.87	65.7	63.4	10	5	268	108.18	1.06	0.99
	64.8	64.2	1.87	64.4	64.2	15	15	268	83.25	0.98	0.97
	75.9	75.9	1.86	54.8	54.7	15	0	268	118.11	1.05	1.10
	75.9	75.3	1.86	55.7	54.7	15	10	268	109.24	1.08	1.19
	75.5	75.3	1.86	55.7	54.7	15	15	268	102.63	1.06	1.19
	86	85.6	1.85	48.7	48.6	0	20	268	117.66	0.92	1.33
	85	86.1	1.85	48.5	48.8	20	10	268	115.30	1.12	1.44
	86	85.6	1.85	48.7	48.6	15	15	268	111.59	0.90	1.43
	40.3	53.7	2.98	51	62.4	19	0	293	261.76	1.02	0.96
	39.6	54	2.98	50.1	63.3	20	10	293	260.37	1.14	1.11
	39.6	54	2.98	50.1	63.3	20	20	293	236.70	1.13	1.11
	39.9	53.7	2.98	50.2	62.8	10	20	293	268.97	1.13	1.10
	39.9	54	2.98	50	62.8	0	20	293	311.95	1.21	1.08
	70	86.1	1.87	49.6	61.7	20	0	268	105.21	1.03	1.03
	70	86.1	1.87	49.6	61.7	20	10	268	97.14	1.02	1.07
	70	86.1	1.87	49.6	61.7	20	20	268	93.72	1.05	1.14
	70	86.1	1.87	49.6	61.7	10	20	268	102.72	0.98	1.09
	70	86.1	1.87	49.6	61.7	0	20	268	114.52	0.90	1.03
Usami and Fukumoto [11]	29.3	22.0	4.46	39.6	29.3	0	10.4	568	742	0.98	0.95
	43.9	32.9	4.47	40	29.6	0	15.7	568	906	0.98	0.91
	58.2	43.7	4.48	40	30.4	0	20.9	568	932	0.90	0.86
	44.4	33.3	4.45	40	29.5	0	31.4	568	743	0.97	0.93
	29.5	22.1	4.42	64.4	45.6	0	10.4	568	524	0.95	0.83
	43.9	32.9	4.5	64.9	47.9	0	15.7	568	740	1.03	0.90
	58.2	43.7	4.48	64.6	48.8	0	20.8	568	743	0.87	0.82
	43.9	32.9	4.5	64.9	47.9	0	31.4	568	593	0.97	0.85
	58.2	43.7	4.48	64.6	48.8	0	41.6	568	639	0.89	0.83
	44.2	33.2	4.47	39.6	36.8	0	20.4	568	914	0.98	0.81
	58.2	43.7	4.48	40	37.8	0	26.9	568	986	0.95	0.81
Usami and Fukumoto [12]	22.1	16.6	6.01	48.8	39.0	0	10.7	741	1299	1.14	1.01
	27.1	20.3	6.01	49	39.3	0	13.1	741	1681	1.33	1.15
	33.1	24.8	6.01	49.2	39.5	0	16.0	741	1877	1.30	1.11
Chiew et al. [2]	40	40	2	33.7	33.7	0	8.2	261.2	136.34	1.12	1.25
	57.1	57.1	1.4	33.7	33.7	0	8.2	253.6	71.12	1.03	1.17
	80	80	1	33.7	33.7	0	8.2	248.6	36.88	0.96	1.38
Pavlovčič et al. [6]	44	39	4	61.4	56.2	0	20	373.4	566.76	1.18	1.09
	44	39	4	61.4	56.2	0	60	373.4	384.85	1.14	1.10
	44	39	4	61.4	56.2	0	200	373.4	206.09	1.18	1.21
Average										1.08	1.06
Standard deviation (%)										17.2	15.7

; ; f_y is the measured yield stress.