【摘要】 如何获得良好的减震效果及抵抗倾覆是隔震技术应用到高层建筑结构中必须解决的两个主要问题。通过对高层抗震与隔震结构的地震时程对比分析,验证了高层隔震建筑存在多阶振型共同减震的现象。根据多振型高宽比显式计算公式计算可知,高阶振型对结构高宽比限值的计算有较大影响,是研究高层隔震结构抗倾覆问题不可忽略的影响因素。更多还原

【Abstract】 How to obtain good damping effect and prevent overturn are two key problems which have to be solved before applying isolation technology to high-rise buildings.By using comparative analysis of the seismic time history of aseismic and isolated high-rise buildings,the integrated multi-modal damping phenomenon of high-rise buildings is validated.According to the explicit formulas of multi-modes height-width ratio,it is found that high modes have big influence on height-width ratio calculation,which should not be neglected in the anti-overturning design of high-rise isolated buildings.更多还原