新型人字支撑复合结构抗震性能的拟静力试验研究  

Testing studies on seismic property of new chevron bracing compound structures under quasi-static loads

作　　者：金建洲[1] 王新玲[1] 王仁义[1] 

机构地区：[1]郑州大学土木工程学院,河南郑州450002

出　　处：《世界地震工程》2009年第3期15-19,共5页World Earthquake Engineering

基　　金：河南省自然科学基金项目(511050400);国家自然科学基金项目(50478050)

摘　　要：针对用于代替粘土砖住宅结构的新型人字支撑复合结构进行了模拟地震作用的拟静力试验,研究了其结构性能。试验采用1∶2的缩尺模型,根据抗震试验规程设计了试验方案。基于试验结果,将新型复合结构的受力特征分为4个阶段,绘出了试件的滞回曲线及各部分钢筋的滞回曲线,计算了结构的耗能系数,分析研究了复合结构的受力性能及破坏机构。得出复合结构具有"强柱、中梁、弱支撑"多道抗震防线的抗震性能及较好的耗能能力,可以用于多层住宅结构。Experiments of compound structures with !small beam and column and chevron （ A ） braces under quasi- static load have been conducted. 1：2 scale model is adopted in the test. The experimental loading process is de- signed by code. Based on experiment, the working properties and failure mechanism of the compound structures are analyzed. The failure mechanism of the compound structures is formed by plastic hinges on ＂braces and beams and columns＂. It is shown that the compound structures possesse better seismic properties of many lines of defense on the basis of the hysteresis behavior of the structures and steels, and the capacity of energy dissipation. The com- pound structures can be used in multi-story houses.

关 键 词：混凝土复合结构 抗震性能 拟静力试验 新型人字支撑 

分 类 号：TU37[建筑科学—结构工程] TU528.0