【摘要】 研究了水平荷载下高层建筑结构—桩筏基础—地基共同作用的问题 ,对整个结构进行了三维数值分析。把有限层法和桩基规范中的 m法相结合 ,通过数值分析手段建立了水平荷载下高层建筑结构——桩筏基础——地基共同作用分析模型。针对一具体建筑进行了对比计算 ,共同作用方法与常规方法相比对上部结构的水平位移及框架柱内力的影响。通过分析对比 ,得出了有益的结论。本文应用 Matlab编程 ,总体刚度矩阵一次生成 ,运用迭代法求解更多还原

【Abstract】 The problem of tall building structure pile group slab foundation is studied wholly with 3D numerical analysis model. The finite layer method and m method are combined to establish a numerical model for analyzing tall building pile group slab foundation soil interaction effects. For a givern structure, computation are conducted both by joint action method and conventional method to show the effects of the two method on the displacement and internal force of the upper structure, some beneficial conclusion are got through comparison of the two method. In this study, Matlab is used for programming and whole stiffness matrix is obtained at one time, the iterative method is used.更多还原