【摘要】 隔震建筑采用水平剪切型模型,隔震体系为橡胶垫、滑移和并联基础隔震系统,隔震层模型采用双线性滞回模型。研究了在不同隔震层屈服剪力和隔震周期时,不同隔震系统对结构地震反应的影响。研究表明,对于规则型隔震结构,经合理设计的并联隔震结构兼具橡胶垫和滑移隔震体系的优点,为优选方案。以一实际工程为例,分析了竖向不规则隔震结构的地震反应特点。研究表明,对竖向不规则结构,橡胶垫隔震体系为优选方案。更多还原

【Abstract】 The isolation building is modeled as a shear type structure with lateral degree-of-freedom on each floor. The isolation systems consist of elastomeric, sliding and resilient-friction base isolation (R-FBI) systems. The isolators are modeled by bi-linear hysteretic models. The influence of the isolation systems on the response of the isolation structure is studied under the variation of parameters, such as isolator yield force and isolation time period. It is observed that a reasonable designed R-FBI structure is an optimal scheme for the typical regular structure having advantages of elastomeric and sliding systems. The seismic response characteristics of vertical irregular base-isolated structures are analyzed by a practical example. Result shows that the elastomeric system is an optimal scheme for the vertical irregular structure.更多还原