摘要
根据两榀预应力叠合框架和一榀整浇框架的实测资料 ,对预应力叠合框架柱和整浇框架柱的受力变形性能进行了对比研究 ,分析了叠合框架柱在水平低周荷载作用下进入弹塑性阶段后 ,受拉区钢筋出现应变超前的本质原因。提出了水平低周反复荷载下叠合框架节点刚度弱化现象及加强节点刚度的构造措施 。
According to the practical measuring datum of two pieces of PC composite frame and one piece of RC frame,the forcing and deformation behaviors of PC composite frame column and RC frame column is compared and studied.Some essential reasons that composite frame column,appears to pregoing strain in pulling steel under laterally reversed lowcyclic loading after entering elasticplastic phase are analysised.The failure phenomenon of rigidity of joint is presented.It is actual significant for PC composite frame appliced in seismic region.
出处
《工业建筑》
CSCD
北大核心
2002年第8期23-24,共2页
Industrial Construction
基金
湖南省自然科学基金资助项目 (97JJY2 0 3 4)
关键词
预应力
叠合框架柱
水平低周反复荷载
节点刚度
PC composite frame column laterally reversed low cyclic loading rigidity of joint pregoing stain
