Cyclic Behavior of Square CFST Columns-Based Joint

Table 5

K_y, K_p, K_m, K_p/K_y, and K_m/K_y.

Specimen	Loading direction	Ky	Kp	Km	Kp/Ky	Km/Ky
No. 1	Positive	11.34	9.70	5.12	0.86	0.45
	Negative	9.12	8.15	5.04	0.89	0.55
No. 2	Positive	13.61	12.01	5.62	0.88	0.41
	Negative	11.63	10.54	5.74	0.91	0.49
No. 3	Positive	7.67	6.78	2.87	0.88	0.37
	Negative	6.76	5.11	3.09	0.76	0.46
No. 4	Positive	7.56	6.34	3.21	0.84	0.42
	Negative	8.31	6.99	3.65	0.84	0.44
No. 5	Positive	15.65	10.7	9.63	0.68	0.62
	Negative	9.64	8.25	7.95	0.86	0.82
No. 6	Positive	14.91	10.87	6.06	0.73	0.41
	Negative	10.15	9.03	8.59	0.89	0.85