spectrum analysis and nonlinear analysis of the structure of surge chamber of Liujiaxia Hydropower Station have been carried out. Load effects are evaluated in this paper. In accordance with the results of linear FEM analysis
a design scheme of reinforcement is proposed. Then
the strength of the structure and crack width are checked by using the nonlinear FEM. After several times of adjusting steel bars area of the structure
an optimal structure and corresponding reinforcement are obtained.