带可更换部件的联肢剪力墙数值模拟分析  

Numerical Simulation of RC Coupled Shear Wall with Replaceable Components

作　　者：李书蓉 宋扬[1,2] 蒋欢军 张鑫[1,2] LI Shurong;SONG Yang;JIANG Huanjun;ZHANG Xin(Key Laboratory of Building Structural Retrofitting and Underground Space Engineering,Ministry of Education,Shandong Jianzhu University,Jinan 250101,China;School of Civil Engineering,Shandong Jianzhu University,Jinan 250101,China;State Key Laboratory of Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]山东建筑大学建筑结构加固改造与地下空间工程教育部重点实验室,济南250101 [2]山东建筑大学土木工程学院,济南250101 [3]同济大学土木工程防灾减灾全国重点实验室,上海200092

出　　处：《结构工程师》2023年第4期1-9,共9页Structural Engineers

基　　金：山东省自然科学基金(ZR2021QE268);国家自然科学基金项目(52038006);山东省重点研发计划(重大科技创新工程)项目(2021CXGC011204)。

摘　　要：为了使剪力墙结构在地震后不需要修复或稍加修复即可恢复其功能,提出了一种连梁和墙脚均可更换的可恢复功能钢筋混凝土联肢剪力墙。采用循环软化膜模型建立了传统联肢剪力墙和可恢复功能联肢剪力墙的非线性数值计算模型。通过数值计算结果与试验结果的对比,验证了数值计算模型的正确性。采用经过验证的数值计算模型研究了高轴压比下带可更换部件的联肢剪力墙的抗震性能。分析结果表明,在高轴压比下,提出的可恢复功能联肢剪力墙的抗震性能明显优于传统联肢剪力墙。新型联肢剪力墙的破坏主要集中在连梁阻尼器和可更换墙脚部件,非更换区得到了有效保护。To achieve resilient structures which can recover their functions quickly after earthquakes,a new type of RC coupled shear wall with replaceable coupling beams and replaceable corner components(RCCs)installed at the bottom was put forward in this study.A numerical model adopting cyclic softening membrane element was established for the conventional coupled RC shear wall and resilient coupled wall,respectively.Accuracy of the models was verified by comparing the simulation results with the test results.Seismic performance of the resilient coupled shear wall under high axial compression ratio was studied.The analysis results show that under high axial compression ratio,the seismic performance of the new coupled shear wall is much higher than that of the conventional coupled shear wall.The damage of the new coupled shear wall mainly concentrates in the replaceable components while the remaining part of the wall is well protected.

关 键 词：可恢复功能结构 钢筋混凝土剪力墙 可更换部件 有限元模型 数值模拟 

分 类 号：TU398.2[建筑科学—结构工程]