基于ABAQUS的坡形独立基础有限元分析

Finite Element Analysis of Slope Independent Foundation Based on ABAQUS

以低层常用坡形独立基础为研究对象,采用有限元分析软件ABAQUS对基础进行系统研究,给出了在法向压强、剪切力、温度场下的位移、应变、Mises应力变化曲线,70E6Pa压强下Mises应力云图及基础的前四阶模态振型。结果表明:法向压强、剪切力、温度场对坡形独立基础影响较大,位移、应变、Mises应力曲线变化趋势不尽相同。另外,随着振型阶数的增加坡形独立基础变形越严重。

Taking the commonly used slope independent foundation in low-rise building as research object, the foundation isstudied systematically by using the finite element analysis software ABAQUS. The changing curves of displacement, strain andMises stress under normal pressure, shear force and the temperature field, and the Mises stress nephogram under pressurewhich is 70E6 Pa are given, as well as the first four order modal vibration mode. The results show that the normal pressure,shear force, temperature field would have greater influence on the slope independent foundation;However, the curve changingtrend of displacement, strain, Mises stress are various. In addition, the deformation of slope independent foundation becomesmore and more serious as the increasing of modal order.