约束剪力墙对SRC框排架结构破坏模式及耗能性能的影响研究  

Influence of constraint shear wall on failure mode and energy dissipation performance of SRC frame-bent structures

作　　者：王博[1] 白国良[1] 康灵果[1] 刘林 代慧娟[3] 

机构地区：[1]西安建筑科技大学土木工程学院,西安710055 [2]双良节能系统股份有限公司,江苏江阴214444 [3]西安科技大学建筑与土木工程学院,西安710054

出　　处：《振动与冲击》2015年第5期66-72,共7页Journal of Vibration and Shock

基　　金：国家自然科学基金项目(51178383);国家科技支撑计划合作单位项目(2011BAJ08B05-4;2012BAJ19B04-02);西安建筑科技大学创新团队支持项目

摘　　要：通过SRC框排架模型结构拟动力试验、伪静力试验以及结构中典型SRC异型节点的伪静力试验,研究约束剪力墙对结构破坏模式与耗能性能的影响。结果表明:剪力墙能够起到第一道抗震防线的作用,形成利于抗震的破坏模式;薄弱部位随着地震作用的增强由煤斗层、运转层到底部两层下移;结构的荷载-位移滞回曲线比较饱满,耗能性能较好;剪力墙对结构中SRC异型节点的裂缝开展具有很好的约束作用,沿纵横向同时布置约束剪力墙能够改善该类节点的破坏模式;约束剪力墙可明显提高SRC异型节点的耗能性能、承载能力与延性性能。该研究可为推广应用SRC框排架结构体系提供基础研究资料。Pseudo-dynamic and pseudo-static tests of a SRC frame-bent model structure,and pseudo-static test of typical SRC abnormal joints were conducted to analyze the influence of constraint shear wall on the structure＇s failure mode and energy dissipation performance. The results showed that the shear wall is the first aseismic line of the structure to make the failure model be helpful to resist earthquakes; the weak part of the structure moves down from coal hopper floor and operation floor to two bottom stories with increase in earthquake intensity; the load-displacement hysteretic curve is plump,and the energy dissipation performance is better; the shear wall has a significant restraint effect on the crack developing of SRC abnormal joints,and setting constraint shear walls along both vertical and horizontal direction can improve the failure mode of this kind of joints; setting constraint shear wall can enhance the energy dissipation performance,force- bearing capacity and ductility performance of SRC abnormal joints obviously. The research results provided basic research data for promoting the application of SRC frame-bent structures.

关 键 词：SRC框排架结构 约束剪力墙 异型节点 破坏模式 耗能性能 伪静力试验 

分 类 号：TU398[建筑科学—结构工程]