上部再生混凝土双肢剪力墙抗震性能试验研究  

Experimental study on seismic performance of coupled shear walls with upper part using recycled concrete

作　　者：张亚齐[1] 曹万林[1] 张建伟[1] 尹海鹏[1] 

机构地区：[1]北京工业大学建筑工程学院,北京100124

出　　处：《地震工程与工程振动》2010年第1期98-103,共6页Earthquake Engineering and Engineering Dynamics

基　　金：北京市科技计划重点项目(D07050601670701);国家"十一五"科技支撑计划课题(2008BAJ08B14);北京工业大学博士研究生创新计划项目(bcx-2009-035)

摘　　要：进行了3个1∶4缩尺的四层双肢剪力墙模型抗震性能的对比试验,连梁跨高比为1.5。模型1为普通混凝土双肢剪力墙,模型2为全再生混凝土双肢剪力墙,模型3为底部两层普通混凝土、上部两层再生混凝土双肢剪力墙。分析了各双肢剪力墙的承载力、延性、刚度、滞回特性、耗能及破坏特征。结果表明:与普通混凝土双肢剪力墙相比,全再生混凝土双肢剪力墙的抗震性能略差,底部两层普通混凝土、上部两层再生混凝土的双肢剪力墙与普通混凝土双肢剪力墙抗震性能接近。建立了再生混凝土双肢剪力墙的承载力计算模型,计算结果与试验结果吻合较好。A comparative study is conducted on the seismic behaviors of three 1/4 scale RC coupled shear wall models. The span-height-ratio of lintel beam of each set is 1.5. The first model is natural concrete coupled shear wall,the second is coupled shear wall with 100% replacement of recycled aggregate and the third is coupled shear wall with variable con- crete along height. Based upon the experimental study,the stiffness and its degradation,load-carrying capacity, hysteretic behavior, ductility, energy dissipation and failure phenomena of each shear wall were analyzed. The calculation formulas of the bearing capacity for RC coupled shear wall were derived. From an experimental analysis,it is proved that compared to the RC coupled common walls,the recycled concrete shear walls show poorer performance and the shear walls with up- per part using recycled concrete and lower part using natural concrete have the similar performance of common wall. The capacity models for recycled concrete coupled shear wall were also established. The calculation results of bearing capacity of the specimens agree well with the measured ones.

关 键 词：上部再生混凝土 双肢剪力墙 抗震性能 试验研究 承载力计算 

分 类 号：TU375[建筑科学—结构工程]