Analytical Analysis of Seismic Behavior of Cold-Formed Steel Frames with Strap Brace and Sheathings Plates

Table 6

Monotonic loading specimens of 1-side sheathed CFS results with thickness of 12.5 mm.

Specimen	𝐻/𝐿	𝑆𝑦; kN	𝑆𝑦𝑝; kN	𝐾𝑒; kN/mm	Δ0.8; mm	𝜇	Energy; kN·mm	𝐾𝑝; kN/mm	𝑆𝑦/𝑆𝑦𝑝; (%)	𝐾𝑒/𝐾𝑝; (%)	𝐾𝑒/𝐾𝑛; (%)
DFP	0.5	209.82	249.42	9.41	78.00	2.49	15377	37.91	84.12	24.82	53.77
	1.0	214.06	255.76	9.78	76.80	2.41	16758	38.26	83.70	25.56	55.89
	1.5	221.71	263.19	10.22	75.46	2.33	17591	39.83	84.24	25.66	58.40
	2.0	228.24	271.35	10.58	75.34	2.27	18299	41.25	84.11	25.65	60.46
Avg		218.46	259.93	10.00	76.40	2.38	17006	39.31
SD		8.17	9.47	0.510	1.25	0.096	1255	1.54
Cov		0.037	0.036	0.051	0.016	0.040	0.074	0.039
OSB	0.5	197.19	238.13	8.84	87.35	2.75	14413	35.37	82.81	24.99	50.51
	1.0	203.94	244.66	9.11	85.74	2.67	15912	36.54	83.36	24.93	52.06
	1.5	209.81	253.91	9.58	83.48	2.51	16752	38.70	82.63	24.75	54.74
	2.0	214.01	259.48	9.83	81.82	2.45	17431	39.64	82.48	24.80	56.17
Avg		206.24	249.05	9.34	84.60	2.60	16127	37.56
SD		7.31	9.50	0.447	2.43	0.139	1300	1.95
Cov		0.035	0.038	0.048	0.029	0.054	0.081	0.052
CSP	0.5	181.87	227.34	8.49	76.14	3.19	13628	32.91	80.00	25.80	48.51
	1.0	198.26	234.21	8.76	102.21	3.08	15084	34.36	84.65	25.49	50.06
	1.5	203.47	245.07	8.92	101.40	2.95	15844	36.02	83.03	24.76	50.97
	2.0	209.25	256.53	9.15	101.82	2.86	16707	37.95	81.57	24.11	52.29
Avg		198.21	240.79	8.83	95.39	3.02	15316	35.31
SD		11.78	12.78	0.277	12.84	0.145	1306	2.17
Cov		0.059	0.053	0.031	0.135	0.048	0.085	0.061
GWB	0.5	163.16	198.33	8.02	123.49	3.70	10649	29.96	82.27	26.77	45.83
	1.0	181.69	224.62	8.19	123.45	3.55	12436	31.30	80.89	26.17	46.80
	1.5	187.53	235.24	8.47	118.16	3.47	13123	32.74	79.72	25.87	48.40
	2.0	194.58	241.03	8.7	118.26	3.39	14297	34.53	80.73	25.20	49.71
Avg		181.74	224.81	8.35	120.84	3.53	12626	32.13
SD		11.66	18.91	0.125	3.04	0.132	1525	1.96
Cov		0.064	0.084	0.015	0.025	0.038	0.121	0.061