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《Building Structure》 1999-12
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Interaction of Tall Building-basement-pile-soil System

Chen Suwen,Yan Shichao  
Considering the engineering fact of tall building with tall building- basement- base slab- pile- soil system, the following researchs are completed. The pile groups are simulated as orthogonal anisotropic elastic medium. The coupled modelling of multiplier infinite element and isoparametric finite element is introduced to simulate the base slab-pile-soil system. Then according to the principle of dynamic substructure theory, Component Modes-two Steps Method is presented. On the basis of intertia coupling between the superstructure (including basement) and base slab-pile-soil system, the modified earthquake wave, considering interaction effect, can be obtained in the first step of analysis. This wave is used as the earthquake input for the earthquake response analysis of tall building in the second step. The method presented herein opens a strict, convenient and practicable way for the earthquake response analysis of pile- supported tall building with spacious multistoried basements.
【CateGory Index】: TU352.1
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