de Falco, A;
Mori, M;
Sevieri, G;
(2019)
Soil-structure interaction modeling for the dynamic analysis of concrete gravity dams.
In:
Proceedings of the 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering.
(pp. pp. 5662-5673).
European Community on Computational Methods in Applied Sciences (ECCOMAS): Crete, Greece.
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Abstract
During earthquake shaking, the dam-reservoir-foundation system has to be considered a coupled system. In this paper Soil-Structure Interaction (SSI) effect is investigated on a 2D plane model of a concrete gravity dam under earthquake excitation. Firstly, different approaches to simulate the unboundedness of soil domain are explored: the Perfectly Matched Layer (PML) technique, the Low Reflecting Boundary (LRB) condition and the Infinite Elements (IEs). Different options are compared in the time domain in the case of linear elastic material. The importance of taking into account the SSI in the seismic assessment of concrete dams is also highlighted by the energy balance during time. Successively, the effects of SSI are analysed on a full interacting nonlinear plane model. The results which are obtained in terms of material damage and dissipated energy through a parametric SSI simulation in the time domain show the importance of the choice of the damage constitutive law of the material.
| Type: | Proceedings paper |
|---|---|
| Title: | Soil-structure interaction modeling for the dynamic analysis of concrete gravity dams |
| Event: | COMPDYN 2019 - 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | https://2019.compdyn.org/ |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10091926 |
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