众值烈度地震作用下多高层建筑的分析方法

Analysis Methods for Earthquake Actions on Multiple and Highrise Buildings

本文以多高层建筑为研究对象，分别应用反应谱振型分解法和时程分析法，分析了剪切型、剪弯型和弯曲型结构在不同地震烈度及不同场地条件下的地震基底内力及地震内力沿结构高度的分布．在分析比较各种不同分析方法所得结果的基础上，文中推荐这三类结构抗震分析的简化计算方法──底部内力法及地震内力沿结构高度分布的最大值包络曲线及公式．

The multiple and highrise building are considered in this paper,the earthquake base shear and bending moment of shear type, shear-bending type and bending type structures on various earthquakeintensities and various sites are analysed by using the modal analysis through response spectrum procedure and time history methods. Based on the comparison of two kinds of results, the simplified methodsof seismic analysis for the three type structures-base shear and base bending-moment methods andthe maximum envelope and formulas of earthquake shear and bending-moment distribution along theheight of the structures are presented in this paper.