Influence on Seismic Response of Dam by Different Dynamic Boundaries

Abstract:

The dam will interact with the foundation during earthquakes. The numerical seismic response of dam by FEM will be significantly influenced by the reasonable computational domain and dynamic boundary. Viscous-spring boundary, viscous boundary, fixed boundary, fixed boundary with massless foundation were compared one another on the dam's seismic response. Due to the radiation damping of foundation reflected by viscous-spring boundary, the peak value of dynamic response can be reduced 50% approximately at most compared with the traditional fixed boundary of massless foundation.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 1949-1952
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.1949
• Online since: September 2013
• Authors: Wei Jun Cen, Kun Xiong, Li Na Yuan, Shuai Wang
• Keywords: Artificial Dynamic Boundary, Radiation Damping of Foundation, Seismic Response of Dam, Viscous-Spring Boundary

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