Experimental research on seismic behavior of new connection between concrete-filled square steel tube and steel beam

A new type of connection between Concrete-filled Square Steel Tube column and H-type steel beam is proposed in the paper, and the seismic behavior of this type of connection under low-reversed cyclic loading test is researched. Ductility behavior, dissipation of seismic energy, degeneration of intensity and stiffness of the connection between Concrete-filled Square Steel Tube columns and steel beam under low-frequency, horizontal, repeat load are analyzed. Hysteretic curves to this four connections specimens between displacement and repeat load, together with corresponding framework curve is shown.