2021 Volume 77 Issue 2 Pages I_193-I_204
In this article, rigid plastic finite element analysis for the bearing capacity of shallow foundations subject to inclined loading is investigated. A linear constraint condition on the velocity field is introduced to express a rigid motion of a foundation and a rough contact between a foundation and a ground. A series of three dimensional bearing capacity analyses of a shallow rectangular foundation subjected inclined loads is carried out to grasp the influences of foundation shape, the angle of load inclination and the loading direction in the horizontal plane on the bearing capacity characteristics. The numerical results show that the bearing capacity mode is observed when the load inclination angle is small, and the sliding failure mode appears when the load inclination angle is large. The influence of the loading direction in the horizontal plane is observed only when the cases of the bearing capacity mode of rectangular foundation. No influence is observed for the square foundation cases and sliding failure modes.
