摘要
运用子结构方法对两榀框支配筋砌块砌体剪力墙结构(底部框架配筋砌块砌体剪力墙和底部框剪配筋砌块砌体剪力墙结构,均为14层)进行了1/4比例模型的多自由度子结构拟动力地震反应试验;研究了地震作用下该结构的动力反应和破坏机理;分析了试验模型的受力特点和破坏形态。试验结果表明:采用子结构技术对框支配筋砌块砌体剪力墙这类复杂高层结构进行拟动力试验是可行的;本试验能够合理体现结构在不同大小的地震中的反应情况;底部框剪-上部配筋砌块砌体剪力墙结构的抗震性能远好于底部框架-上部配筋砌块砌体剪力墙结构的抗震性能,并且符合我国规范多道抗震设防的设计思想;初始弹性侧移刚度比对框支配筋砌块砌体剪力墙结构的薄弱层位置、弹塑性变形性能和破坏形态的影响较大。
Substructure pseudodynamic tests were adopted to carry out for 1：4 reduced-scale models of frame-supported- reinforced-masonry-shear-wall （FSRMW）, to study their seismic behaviors. The dynamic response of the tested structure under the influence of earthquake excitation was analyzed. The horizontal bearing capacity and the damage degree of the test model were investigated. It was validated that substructure pseudodynamic test method is suitable to obtain the adequate dynamic response. The test result indicated that the seismic performance of the frame-shear-wall-supported reinforced masonry shear wall is better than the frame-supported reinforced masonry shear wall. The value of lateral stiffness ratio has significant influence on the place of weak story, elastic-plastic distortion and failure characteristic.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2007年第1期89-100,共12页
Journal of Building Structures
基金
国家自然科学基金资助项目(50608031)
建设部砌体结构规范管理组和长沙市墙改办研究专项资金资助项目
关键词
框支配筋砌块砌体剪力墙
模型试验
子结构拟动力试验
侧移刚度比
抗震性能
frame-supported-reinforced-masonry-shear-wall
model test
substructure pseudodynamic test
lateral stiffnessratio
seismic performance
