3-D FEM Analysis of Gravity Dam

On the basis of three-dimensional (3-D) FEM, the dam structure and base of gravity dam of Gu county reservoir is analyzed and the stress and displacement is calculated in this paper. The result indicates that a majority of dam is in the stress state and stress concentration exits in dam heel, the dam subjected to a lot on temperature load and has a larger compressive stress in dam heel while temperature raising and a larger first tensile stress when temperature drops down. The stress is small owing to transverse joint.