Experimental Study on Hysteretic Behavior of Double-Plate Reinforced Overlapped K-Joints

Table 3

The control load and displacement ductility coefficient of joints.

Specimen	Tension		Compression		rt (%)	rc (%)	δu (mm)	δy (mm)	μ
	Pu (kN)	Py (kN)	Pu (kN)	Py (kN)
K-RC	245.1	198.2	−230.5	−190.8	—	—	13.5	6.1	2.21
K-RC1	286.2	260.5	−376.8	−328.7	16.8	63.5	16.4	9.7	1.69
K-CC	240.2	168.3	−221.9	−172.5	—	—	12.5	5.6	2.23
K-CC1	334.5	312.8	−432.7	−389.2	13.9	95.0	17.1	10.2	1.68