【摘要】 对基础隔震偏心结构进行了水平双向地震作用下的平-扭耦联地震反应分析,研究了上部结构偏心距、扭转与平动周期比和隔震层偏心距对结构地震反应的影响,分析表明,上部结构的偏心距和周期比对结构2个水平方向的地震反应的影响较小,而对上部结构角部最大层间位移和结构的扭转反应有较大影响;隔震层的偏心距对结构2个水平方向的地震反应有一定影响,对隔震层中隔震支座的最大水平位移和结构的扭转反应有显著影响.更多还原

【Abstract】 The analysis of lateral-torsional coupled seismic response of base-isolated eccentric structures is carried out.The eccentricities and the uncoupled torsional to lateral period ratios of superstructure,and the eccentricities in isolation layer are taken into account.The eccentricities and period ratios of superstructure have a little effect on the lateral response of the structure,but they have much impact on the maximum inter-floor displacement and the torsional response of the structure.The eccentricities in isolation layer have a greater impact on the maximum displacement of the isolators and the torsional response of the structure than that on the lateral response of the structure.更多还原