空腹式型钢砼柱的抗震性能研究

On The Aseismic Behavior Of Concrete Encased Space Angle Under Horizontal Repeated Loads

通过对钢——砼(SC)框架柱在低周反复循环荷载试验,研究了 SC 柱在压、弯、剪作用下发生粘着剪切、弯曲等不同破坏形式的破坏机理,分析了它们的抗震性能及承载能力,提出了压、弯、剪共同作用下混凝土内含角钢桁架柱水平承载力计算公式,计算结果与试验结果吻合较好。

Based on the testing results of six concrete encased space angle members sub- jected to axial load,bending and shear,this paper analyzes the failure patterns.It discusses the restoring force characteristics and the energy dissipation under cyclic loading and com- pared with the common column.It also presents the calculation methods and formulas of the horizontal carrying capacity of the concrete encased space angle members under load,bend- ing and shear.