Seismic analysis of dam-foundation-reservoir coupled system using direct coupling method

摘要: This paper presents seismic analysis of concrete gravity dams considering soil-structure-fluid interaction. Displacement based plane strain finite element formulation is considered for the dam and foundation domain whereas pressure reservoir domain. A direct coupling method has been adopted to obtain interaction effects among dam, dynamic responses dam. An efficient absorbing boundary condition implemented at truncation surfaces domains. parametric study carried out each separately collectively on natural frequencies, crest displacement stress neck level body. The combined frequency entire coupled system very less than that individual sub-system. stresses shows prominent enhancement when effect taken into consideration. These outcomes suggest a complete necessary actual developed methodology can easily be in code analyzing problem desired sub-domains.