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中文摘要：
高层隔震建筑的隔震层在罕遇地震作用下会产生拉应力。本文通过对一栋20层的高层隔震结构,分别采用等拉压刚度模型和不等拉压刚度模型进行动力非线性时程分析,研究叠层橡胶隔震支座竖向刚度模型对高层基础隔震结构动力响应的影响。研究表明,超出线弹性工作范围后,竖向等拉压刚度模型将会低估隔震层的竖向位移量,低估上部结构的动力响应。
英文摘要：
The vertical tensile stress in the isolation layer of isolated high-rise building will appear in severe earthquake.Elastic-plastic dynamic analysis of a 20-story reinforced concrete isolated high-rise building under severe earthquake loading is performed in this paper for studying the effects of vertical stiffness,equivalent compressive-tensile vertical stiffness model（ECTS） and non-equivalent compressive-tensile vertical stiffness model（NCTS） of the isolator on the dynamic responses.The analysis results show that,both displacement of the isolation layer and the acceleration of the structure will be underrated in the case of using ECTS model.
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