预压装配式预应力混凝土框架弹塑性动力时程分析  

Dynamic Elasto-plastic Analysis on Post-tensioned Precast Prestressed Concrete Frame

作　　者：王薇[1] 柳炳康[1] 王冬花[1] 

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230009

出　　处：《工程抗震与加固改造》2013年第1期10-15,共6页Earthquake Resistant Engineering and Retrofitting

基　　金：国家自然科学基金项目(50778060)

摘　　要：通过对一榀2层两跨预压装配式预应力混凝土框架进行拟动力试验,采用不同加速度峰值的El Centro地震波激励加载,了解了预压装配式框架的动力性能和变形能力。研究表明,预压装配式预应力结构有着较强的变形恢复能力,加载至框架屈服,卸载后变形基本恢复。采用结构通用有限元分析软件MIDAS/Gen考虑节点半刚性对模型结构进行弹塑性动力分析,求出其位移反应,并与试验结果进行了比较,两者吻合较好。Pseudo-dynamic test are conducted on two storey double-span post-tensioned preeast prestressed concrete frame. The frame is subjected different peak acceleration based on the E1 Centro ground motion, dynamic performance and deformation capacity of the frame are investigated. Studies show that pre-stressed fabricated concrete frame has strong deformation recovery ability. It can be subjected at different peak acceleration until the frame achieve yield , deformation are recovery after uninstall. The results of analysis using MIDAS/ Gen are compared with the test results, indicating that the displacement of the analytical model is close with the results of the test structure.

关 键 词：预压装配式框架 拟动力试验 MIDAS Gen 层间位移角 弹塑性动力分析 

分 类 号：TU378.4[建筑科学—结构工程]