Force Analysis for Concrete Hyperbolic Arch Dam of Songbaishan Reservoir

Abstract

Arch dam is a water retaining arch structure that convex upstream on the plane, the stability of arch dam does not need to rely on its own weight in water to maintain, mainly using the reaction of the bedrock of arch side to support and the section of arch ring mainly bear the axial reaction force, which can take good advantage of the strength of the dam material. Therefore, arch dam is a good dam type, whose economy and security are very good. The paper uses the finite element method to analysis the force of concrete hyperbolic arch dam of Songbaishan reservoir and gives the dam stress and deformation distribution regularities in the course of construction and operation. The research results show that the stress and deformation values are small and it can meet the design requirements. The structure is safe and reliable. The research provides a certain reference for the design and construction of concrete hyperbolic arch dam structure. Keywords—Songbaishan reservoir; Hyperbolic arch dam; Force analysis; Stress distribution; Deformation analysis.