【摘要】 采用动态子结构法和有限元与无界元耦合分析高层建筑地基空间体系的地震响应。分析和模拟计算表明，无界元在模拟地基问题上具有很大优越性，不但具有较高的计算精度，而且节省机时，在柔性地基上设计高层建筑考虑结构与地基的相互作用更经济合理。更多还原

【Abstract】 In this paper,dynamic substructure technique and finite infinite element method are employed to analyze the seismic responses of space coupling systems of high building foundations.A numerical simulation shows that infinite element method is a very good tool for simulation of foundations with a high accuracy and speed and that the coupling effets of a structure and its foundation can be taken into consideration,which makes the design and construction economic and rational.更多还原