Journal article
Earthquake performance assessment of concrete gravity dams subjected to spatially varying seismic ground motions
Structure and infrastructure engineering, v 10(8), pp 1011-1026
01 Jan 2014
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
This paper investigates the earthquake performance of concrete gravity dams under spatially variable seismic excitations. A nonlinear finite element model is developed and validated using shake table experimental results. The model is then subjected to spatially varying earthquake ground motions incorporating the wave passage effect, with values for apparent propagation velocities consistent with the source-site geometry and the shear wave velocity in the foundation rock. The evaluation reveals that different response patterns occur when spatially non-uniform and uniform seismic ground motions are applied as input excitations to the model, because spatially non-uniform excitations induce the quasi-static response, whereas uniform excitations do not, and, in addition, the dynamic response caused by different input motions varies. Notably, spatially non-uniform excitations produce larger opening at the heel of the dam and severer slipping at its toe; this latter observation can have a significant effect on the global equilibrium and stability of the dam during an earthquake.
Metrics
Details
- Title
- Earthquake performance assessment of concrete gravity dams subjected to spatially varying seismic ground motions
- Creators
- Junjie Huang - Wuhan UniversityAspasia Zerva - Drexel University
- Publication Details
- Structure and infrastructure engineering, v 10(8), pp 1011-1026
- Publisher
- Taylor & Francis
- Number of pages
- 16
- Grant note
- CMMI-0600262; CMMI-0647860 / US National Science Foundation; National Science Foundation (NSF) Drexel University
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:000336384300007
- Scopus ID
- 2-s2.0-84901275171
- Other Identifier
- 991019169635004721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Engineering, Civil
- Engineering, Mechanical