剪力墙—基础—土共同作用分析

Interactive Analysis Between Shear Wall and Its Foundation

本文采用有限单元法对建在多层地基上的剪力墙,基础和土进行了共同作用分析。为了比较,在分析时还采用了土的文克尔模型和半无限弹性体模型。 文中对一典型实例进行了分析。由分析结果知,按常规的设计方法计算,因为假定基础固定,没有考虑基础的沉降对剪力墙变形的影响,因而是偏不安全的。建议剪力墙分析时,应考虑基础沉降对剪力墙变形和内力的影响,即采用本文所提出的共同作用原理进行分析。

This paper deals with the interaction between shear wall and its foundation using finite element method.Three soil models,winkler model,elastic half-space model and multilayer model, have been used in the analysis.The procedure is demonstrated by carrying out interactive analysis on a shear wall founded on footings with single row of openings in the wall.The computations show That the lateral and vertical deflectios are underestimated if interaction effects are ignored.