预压装配式预应力混凝土框架拟动力抗震性能试验研究  

SEISMIC BEHAVIOR EXPERIMENT RESEARCHES ON PRESTRESSED FABRICATED PC FRAME CONNECTIONS UNDER PSEUDO DYNAMIC TEST

作　　者：黄慎江[1] 柳炳康[1] 凌琦[1] 

机构地区：[1]合肥工业大学土木与水利工程学院,合肥230009

出　　处：《工业建筑》2011年第12期39-43,共5页Industrial Construction

基　　金：国家自然科学基金资助项目(50778060)

摘　　要：通过对一榀两层两跨预压装配式混凝土框架拟动力试验,着重分析预压装配式混凝土框架在拟动力荷载情况下的破坏机制、刚度退化、耗能性能,以及变形恢复能力,并对结构模型进行了弹塑性动力分析。试验结构在高荷载下梁的滞回曲线趋于丰满,表现出较强的耗能能力。梁端截面具有良好的转动能力,可考虑框架弯矩调幅。预应力的作用使得框架构件有很强的变形恢复能力,有利于震后修复。Pseudo dynamic test was conducted on two-storey double-span post-tensioned precast prestressed concrete model frame.The failure mechanism,deformation properties,rigidity degradation and energy dissipation capacity of the structure under dynamic load was investigated,and the elastic-plastic dynamic analysis of model structure was carried out.The analysis indicated that hysteresis curves and energy dissipation of specimens were good at high loading,and the inelastic rotation could be occurred at beam ends for moment redistribution.The prestressed fabricated connection had enough displacement restoring capacity,which reduced the frame damage in earthquake and could be repaired conveniently.

关 键 词：预压装配式框架 拟动力试验 抗震性能 耗能能力 地震反应 

分 类 号：TU398.9[建筑科学—结构工程] TU352.11