Experimental Study on Seismic Behavior of Precast Frame Columns with Vertical Reinforcement Spliced with Grouted Sleeve Lapping Connectors

Table 6

Comparison of horizontal force in different states of specimens.

Specimen	Fcr (kN)			Fy (kN)			Fp (kN)			Nu (kN)
	+Fcr	−Fcr	Average	+Fy	−Fy	Average	+Fp	−Fp	Average
XZ1	101.6	103.1	102.3	159.3	153.3	156.3	173.9	187.2	180.5	152.2 (120.6)	1.19 (1.50)
YZ1	122.2	86.1	104.2	179.9	141.9	160.9	216.5	195.5	206.2		1.35 (1.71)
YZ2	127.2	110.3	118.7	163.4	166.0	164.7	187.2	198.5	192.8		1.27 (1.60)

Note: the value in parentheses is calculated according to US ACI code, and that preceding the parentheses is calculated according to Chinese GB code.