Finite Element Analysis of Dam-Foundation Coupled System Considering Cone-Type Local Non-Reflecting Boundary Condition |
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| Authors: | Angshuman Mandal Damodar Maity |
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| Institution: | 1. Department of Civil Engineering, Indian Institute of Technology, Kharagpur, Indiaangshuman.mandal8@gmail.com;3. Department of Civil Engineering, Indian Institute of Technology, Kharagpur, India |
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| Abstract: | This article deals with the seismic analysis of the dam-foundation coupled system considering direct coupling approach using displacement based finite element method. A cone-type local non-reflecting boundary condition (NRBC) is adopted to model the semi-infinite soil domain. The reservoir effect adjacent to dam body has also been incorporated in the analysis. The results depict the superiority of the proposed NRBC in absorbing spurious wave reflections over the traditional viscous boundary conditions. The analysis results show that the dynamic response of the dam gets highly affected due to the consideration of the elastic foundation domain at its base. |
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| Keywords: | Finite Element Method Coupled System Dam-Foundation Interaction Direct Coupling Method Non-Reflecting Boundary Condition Cone Boundary |
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