Experimental Study and Numerical Simulation of Seismic Behavior for RC Columns Subjected to Freeze-Thaw Cycles

Table 5

Input parameters of constitutive model for frozen-thawed unconfined concrete (Concrete02 in OpenSees).

Specimen	Cycles	Depth (mm)	(Mpa)		(Mpa)
Z-C1	0	0–20	43.57	0.0018	0	0.036
Z-C2	100	0–10	39.92	0.0031	0	0.0062
		10–20	43.57	0.0018	0	0.0036
Z-C3	200	0–10	28.69	0.0037	0	0.0074
		10–20	32.45	0.0033	0	0.0067
Z-C4	300	0–10	15.75	0.0158	0	0.0316
		10–20	20.94	0.0062	0	0.0124

Note: is the ultimate stress of frozen-thawed concrete.