密肋壁板结构-地基基础相互作用分析

INTERACTION ANALYSIS OF MULTI-RIBBED SLAB STRUCTURE AND FOUNDATION

文中利用有限元分析方法,用ANSYS模拟其三者的相互作用,分别与不考虑上部结构、仅考虑一层结构时基础的应力、应变作比较。结果表明:在地基基础和荷载条件不变的情况下,增加上部结构的刚度会大大减少基础的相对挠曲和内力,同时导致上部结构自身内力增加等结论。

A method of finite element analysis is given in this paper to study the interaction of multifibbed slab structure and pile raft foundation and soil. ANSYS is used for the analysis. And with considering the interaction or not, some advices about the design are given. The result shows that： the stiffness of upper structure is very important to the interaction. When the foundation and load conditions are invariable, increasing the stiffness of the upper structure will greatly reduce the foundation of relative flex- ure and internal force, and the force in itself will be increased.