摘要：The limit state of bearing capacity of concrete and collapse state is discussed by the overload method of finite element limit analysis and finite difference software FLAC3D. Firstly, the shear strength of concrete with different strength grade is verified through the numerical limit analysis. Besides, a new method to judge the failure of concrete by calculating the concrete limit shear strain increment value is proposed. In addition, the collapse surface position and shape is simulated and the result is compared with the actual state of the destruction. The finite element limits analysis method have been tried to applied in concrete in this paper.
