摘要
对相似比为1∶3的单齿柱和企口梁连接装配式框架试验模型进行了振动台加载试验,探讨了其在单向地震波作用下的地震反应规律,分析了该结构的动力特性、加速度反应、位移反应等变化规律。采用SAP2000有限元软件对单齿柱和企口梁连接装配式框架模型进行了分析计算。结果表明:整体模型裂缝出现的顺序依次是柱脚、梁端、框架梁柱节点,最后是装配式连接节点,两类装配式节点的连接性能均较好;整体模型在高强度地震作用下的最大层间位移角满足规范限值要求,具有良好的抗震性能。分析结果与试验结果基本吻合,验证了理论分析的正确性。
The shaking table test was carried out on the one-third scale test models of the prefabricated frame connected with single-tooth column and dapped-end beam.Its seismic performance of dynamic characteristics,acceleration response and displacement response were discussed under unidirectional seismic excitation.Adapting the finite element software SAP2000 to analyze the test model of the prefabricated frame connected with single-tooth column and dapped-end beam,the results of finite element analysis are basically consistent with the test results.The results of test and theoretical analysis show that the sequence of cracks in the whole model is column-base,beam-end,frame joint,and assembly joint.The maximum inter-story displacement angle of the whole model under the high-intensity earthquake still meets the requirements of the code limit,and it has good seismic performance.The joint of the prefabricated frame connected with single-tooth column and dapped-end beam is destroyed later than that of cast-in-place structure,so the calculation method of cast-in-place frame design can be used to design and analyze the assembled frame structure.
作者
魏文晖
杨超
程亮
蒋功成
WEI Wen-hui;YANG Chao;CHENG Liang;JIANG Gong-cheng(Hubei Key Lab of Road Bridge and Structure Engineering,Wuhan University of Technology,Wuhan 430070,China;Central Southern China Electric Power Design Institute,Wuhan 430071,China)
出处
《武汉理工大学学报》
CAS
北大核心
2020年第1期36-43,共8页
Journal of Wuhan University of Technology
基金
国家自然科学基金(51678462)。
关键词
抗震性能
振动台试验
有限元分析
梁柱节点
seismic performance
shaking table test
finite element analysis
beam-column joints
