Seismic analysis of concrete arch dams considering hydrodynamic effect using Westergaard approach

Year 2019, Volume: 23 Issue: 2, 149 - 161, 01.04.2019

Muhammet Karabulut , Murat Emre Kartal

https://doi.org/10.16984/saufenbilder.394266

Cited By: 3

Abstract

Earthquake response of arch dams should be calculated under strong
ground motion effects. In this study, three-dimensional linear response of an
arch dam is investigated. Different ground motion effects and also foundation
conditions are considered in the finite element analyses. For this purpose, the
Type 3 double curvature arch dam was selected for numerical examples. All
numerical analyses are carried out by SAP2000 program for empty reservoir
cases. According to numerical analyses, maximum horizontal displacements and
maximum normal stresses are presented by dam height in the largest section.
These results are evaluated for five different elastic foundation conditions.
The selected foundation conditions of the all models have different sandstone
material parameters. Furthermore, near-fault and far-field ground motion
effects on the selected arch dam are taken into account by different
accelerograms obtained from the Loma Prieta earthquake at various distances.

Keywords

elastic foundation, far field motion, near fault motion, sandstone material, type3 arch dam

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