Research on Mechanical Properties and Parameter Identification of Beam-Column Joint with Gusset Plate Angle Using Experiment and Stochastic Sensitivity Analysis

Table 3

Hysteresis test results.

Mechanical indices	SJB-1	SJB-2	SJB-3
Mp	46/−44	58/−36	69/−68
θ	0.086/−0.063	0.062/−0.055	0.059/−0.047
K	4867/−4212	5936/−4565	7687/−7960
Failure modes	Top angle + web angle cracked + local buckling of column flange	Top angle fractured + local buckling of column flange	Seat and top angle fractured

Note. M_p is the plastic moment when the rotation angle was 0.03 rad (kN·m); K is the initial rotational stiffness of the joint (kN·m·rad⁻¹); θ is the maximum rotational angle of the joint (rad).