施工过程中筏板基础应力和沉降变化规律

Effect of Raft Foundation's Response During Construction Course Simulation

针对国内还没有具体文献详细分析模拟施工过程对筏板基础响应的影响,本文建立上部结构、筏板基础与地基共同作用的模型,利用ANSYS有限元软件自身的单元生死技术,计算分析了施工过程对筏板基础响应的影响.数值分析的结果表明,施工过程只在开始几层施工时对筏板影响较大,随着层数的增加,影响会越来越小.

Since little research has been done on the effect of raft foundation＇s stress and strain during construction course simulation,the superstructure-raft foundation-soil interaction model is presented to analyze the change of stress and strain of raft foundation.The element birth and death capability of ANSYS is also employed to simulate the raft foundation＇s response during construction course.Studies show that the changes of stress and strain of foundation are very great at the beginning of construction,and are becoming smaller as the floors increases.