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

Table 7

Monotonic loading specimens of 2-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	237.19	295.66	15.07	36.27	1.78	17588	43.71	80.22	34.48	86.11
	1.0	247.54	307.69	15.32	35.81	1.62	20445	45.26	80.45	33.85	87.54
	1.5	251.65	312.45	15.51	33.66	1.54	22587	48.17	80.54	32.20	88.63
	2.0	258.19	316.87	15.68	31.98	1.47	23914	50.22	81.48	31.22	89.60
Avg		248.64	308.17	15.40	34.68	1.60	21134	46.84
SD		8.80	9.14	0.262	1.61	0.133	2762	2.92
Cov		0.035	0.030	0.017	0.046	0.083	0.131	0.062
OSB	0.5	239.91	271.15	13.19	45.34	1.92	15924	38.81	88.48	33.98	75.37
	1.0	245.51	298.94	13.41	43.27	1.83	18126	41.31	82.13	32.46	76.63
	1.5	250.09	305.72	13.65	41.82	1.76	20735	42.58	81.80	32.06	78.00
	2.0	254.32	309.35	13.32	40.73	1.59	21653	44.02	82.21	30.26	76.11
Avg		247.46	296.29	13.39	42.79	1.78	19110	41.68
SD		6.19	17.31	0.194	1.99	0.140	2597	2.21
Cov		0.025	0.058	0.014	0.047	0.079	0.136	0.053
CSP	0.5	238.44	292.17	12.21	50.48	2.17	14825	35.29	81.61	34.60	69.77
	1.0	244.49	298.43	12.35	49.83	2.04	16982	38.11	81.93	32.41	70.57
	1.5	248.12	303.81	12.69	48.25	1.95	18899	40.92	81.67	31.01	72.51
	2.0	251.87	307.98	12.84	46.29	1.88	20017	43.73	81.78	29.36	73.37
Avg		245.73	300.60	12.52	48.71	2.01	17681	39.51
SD		5.72	6.84	0.292	1.86	0.125	2279	3.63
Cov		0.023	0.023	0.023	0.038	0.062	0.129	0.092
GWB	0.5	201.59	242.42	10.37	67.62	2.39	13039	33.81	83.16	30.67	59.26
	1.0	211.26	254.26	10.51	63.95	2.28	15370	35.43	83.09	29.66	60.06
	1.5	217.98	258.09	10.74	60.67	2.16	17098	37.22	84.46	28.86	61.37
	2.0	225.43	263.87	10.94	57.12	2.04	18873	38.87	85.43	28.16	62.54
Avg		214.07	254.66	10.64	62.34	2.22	16095	36.33
SD		8.65	9.07	0.274	4.49	0.151	2489	2.19
Cov		0.040	0.036	0.026	0.072	0.068	0.155	0.060