钢筋混凝土异形柱框架结构抗震性能试验研究

Experimental study on seismic behaviour of RC frame with special-shaped columns

钢筋混凝土异形柱框架的抗震性能,特别是它在高烈度地震下的抗震性能,一直是结构抗震研究的重点问题。为了配合正在编制的《钢筋混凝土异形柱技术规程》,进一步探讨这种结构体系的适用性,针对昆明市某实际工程,按8度区Ⅲ类场地的情形,进行了1榀3层2跨钢筋混凝土异形柱框架1/3比例模型的拟静力试验,研究这种结构在低周反复荷载作用下延性、变形特性和滞回特性。试验研究表明,这种钢筋混凝土异形柱框架抗震性能良好。

Seismic behaviour of RC frame with special-shaped columns, especially in high intensity zones, is a key researched problem. In order to concert with compilation of National Technical Specification on RC Special-shaped Column and investigate adaptability of the structural system, a quasi-static test of a 1/3-scale model of three-storey RC frame with special-shaped columns in seismic fortification intensity 8 zone and kind Ⅲ site was conducted. Ductility, deformation and hysteretic property of the structure are studied. It is shown that seismic behaviour of this kind of frame is excellent.