【摘要】 选择不同高度、不同结构类型和不同场地条件的位于厚和深厚地基土层上的10栋典型钢筋混凝土高层建筑,通过考虑土-结构相互作用对高层建筑地震反应影响的分析,在地震动输入、自振特性、相互作用影响因数、体系地震反应等方面得到了一些具有实用价值的关系式,在此基础上,给出了一种以结构与土层第一周期系数αT为指标的高层建筑土-结构相互作用地震反应分析简化评估方法。该方法无需进行复杂又费时的高层建筑土-结构相互作用分析,仅利用简单省时的结构和土层反应分析结果,就可估计出高层建筑土-结构相互作用体系的反应,可用于高层建筑考虑土-结构相互作用地震反应的初步估计。更多还原

【Abstract】 Soil-structure interaction(SSI) is an important subject with great theoretical significance and practical applications.Although significant progresses have been made for past forty years,there are still important problems to be solved,and developing an effective and practical analysis method considering SSI is one of these problems.In this paper,ten typical reinforced concrete high-rise buildings with different heights,structural types and site conditions in thick or deep foundation soils,are selected.Through comprehensive analysis considering SSI,relationships between ground motion input,natural vibration characteristic,SSI effect factor,and seismic response are obtained.A simplified assessment method for seismic response analysis of high-rise buildings considering SSI is obtained,using the first period coefficient of structure and soils as an index.In this method,it is not necessary to perform complex and time-consuming SSI analysis of high-rise buildings.Using the results of simple and time-saving analysis,the response of SSI system can be assessed.This method can be employed for primary assessment of the seismic response of high-rise buildings considering SSI.更多还原