岩石地基条件下不同厚度基础底板的应力有限元分析

FEM Analysis on the Stress of Different Foundation Slab Thickness

本文针对岩石地基条件下混凝土底板厚度不同的情况,结合山东省青岛市仁和路旧城改造项目工程实例,运用ABAQUS有限元分析软件,以建模方式综合分析了不同厚度底板的应力,研究了在不同厚度交接处的应力情况,得出在薄板与厚板相交处出现应力集中现象,并产生裂缝且裂缝沿着薄板与厚板相交线的方向发展的结论。

In this paper, according to the foundation rock under the condition of different thickness of the concrete floor, combining the kernel and the old city reconstruction project for engineering examples, using the ABAQUS finite element analysis software, the different thickness plate stress is analyzed comprehensively with modeling method, in the different thickness of the junction. The result shows that the stress situation in thick plate intersect can easily appear stress concentration phenomenon and cracks, and the cracks will develoo alon~ the direction of thickness olate intersection line.