某大型商业广场整体筏板有限元分析

A finite element analysis of mass commerce buildings raft foundation

筏板基础大体积混凝土结构的应力及温度裂缝问题,已经成为影响结构整体性和耐久性的重要因素之一。从力学的角度,考虑地基基础的共同作用,利用大型有限元软件Ansys对大型的筏板基础进行了静力计算以及温度应力分析。采用AutoCAD接口相结合的方式和子结构技术实现结构建模求解。实践表明,该建模及分析方法,能够有效地实现大体积复杂结构的分析及设计。

Stress and temperature craze due to temperature of raft foundation＇s mass concrete structure has become one of the important factors to affect the globability and durability of the structure. Considering the interaction of soil and foundation, the raft foundation is analyzed under the static forces and the temperature loads by the finite element software Ansys. The technique of the substructure and the method of modeling by interface of the AutoCAD offered are applied in this paper. It is indicated which can be used to analyze and optimize most complex structure effectively.