摘要
本文总结了层高有缩进、平面不对称的钢筋混凝土框架模拟地震振动台试验,分析了其动力特性和破坏特征.采用考虑双轴相互影响的单元截面M—Φ滞回曲线模型和由平面子结构法推导的杯系-层间计算模型,作了弹塑性地震反应分析.计算结果与试验值进行了对比,计算效果良好.在此基础上就双向地震作用时不规则钢筋混凝土框架的扭转效应进行了讨论.
In this paper, the bidirectional shaking table test of a reinforced concrete frame model with irregular plan and setback are studied, and the dynamic characteristies and damage features of the model are analyzed. The restoring force model of members considering the mutual effect of biaxial plastic stiffness and the element-storey analysis model derived from the plane substructure method have been used for the seismic responses analysis of the frame model at elastoplastic stage. The calculated results are in good agrement with the measured data. Based on these results, the torsional effects of the reinforced concrete frame with irregular plan and setback under bidirectional ground motion are discussed.
出处
《土木工程学报》
EI
CSCD
北大核心
1994年第5期37-51,共15页
China Civil Engineering Journal
基金
国家自然科学基金资助项目
