Experimental Study on the Shear Performance of Steel-Truss-Reinforced Concrete Beam-Column Joints

Table 6

Displacement ductility coefficient.

Specimen number	Loading direction	Yield displacement : mm	Ultimate displacement : mm	Ductility coefficient (μ)	Average
J-1	Positive	32.29	89.28	2.76	2.82
	Negative	−33.20	−95.59	2.88
J-2	Positive	31.60	79.85	2.53	2.53
	Negative	−33.37	−84.58	2.53
J-3	Positive	33.57	83.52	2.49	2.45
	Negative	−35.81	−86.13	2.41
J-4	Positive	30.56	75.82	2.48	2.46
	Negative	−30.92	−75.28	2.43
J-5	Positive	33.40	92.14	2.76	2.79
	Negative	−36.49	−102.87	2.82