竖向加预应力钢筋混凝土柱抗震性能试验研究  

Experimental Study on Aseismic Behavior of R.C.Columns with Vertical Prestressing

作　　者：张荣[1] 苏小卒[1] 

机构地区：[1]同济大学建筑工程系,上海200092

出　　处：《同济大学学报（自然科学版）》2006年第12期1578-1582,共5页Journal of Tongji University:Natural Science

基　　金：教育部高等学校骨干教师计划资助项目

摘　　要：为了研究预应力钢筋混凝土柱的抗震性能,进行了四根预应力钢筋混凝土柱在变轴力和变水平力作用下的反复加载试验.对试件的破坏过程、荷载—位移关系滞回曲线特征、耗能能力等深入分析,得出在试验加载条件下试件的抗震性能明显不对称,且施加了预应力的柱受拉有效工作范围明显增大的结论.同时建议采取在柱中加一定竖向预应力的方式,来改善高层或超高层建筑结构整体弯曲变形时柱中可能出现拉力的情况.为竖向加预应力钢筋混凝土柱的进一步应用提供了理论基础.In order to investigate the basic aseismic behavior of . R. C. columns with vertical prestressing, four prestressed concrete columns were tested in the laboratory. The column specimens were subjected to reversed repeated lateral and axial loads. This paper presents a description of the procedure of the experiment and a part of the result, which includes the failure process, load-displacement interaction curves etc. The results show that the aseismic behavior of the column specimens is strongly nonsymmetrical. Due to the prestressing, the columns show a larger work range under tensile axial load.

关 键 词：预应力混凝土 竖向预应力 预应力柱 抗震 承载力 

分 类 号：TU378.3[建筑科学—结构工程]