Seismic Behavior Experimental Study on the Joint of Circular Tubed Steel-Reinforced Concrete Columns

Table 3

Load and displacement of the characteristic point.

Specimen		Yield state		Ultimate load state		Failure state
		Py (kN)	Δy (mm)	Pmax (kN)	Δmax (mm)	Pu (kN)	Δu (mm)
SH-1	Positive	155.80	41.67	168.44	60.01	143.17	178.51
	Reverse	127.65	32.35	144.29	60.04	122.65	154.20
SH-2	Positive	131.25	31.25	151.46	80.01	128.74	180.02
	Reverse	120.74	30.29	155.31	60.03	132.01	157.54