Wang Fuming; Feng Hongjian;  Zhou Hongjun

Aiming at the complex finite element method calculation of arch dam static analysis and the shortcomings of low accuracy in solving the dam type optimization problem, a spline semi-analytical method for the static analysis of thin arch dam is proposed based on shell theory and energy principle. It absorbs the general advantages of the spline function method, avoids the cumbersome calculation in the finite element method, and gives calculation examples that meet the accuracy requirements, and compares the results with the finite element method and the arch beam modal method.