A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fundamental Mode Response of Dams Including Dam–Water–Foundation Interaction
In this chapter, considering only the fundamental mode of vibration of the dam, the authors develop a procedure for analysis of dam response including dam–foundation interaction. Response results determined by this analysis procedure enable people to identify the effects of dam–foundation interaction and how they influence the vibration properties – natural vibration period and damping ratio – and response of concrete gravity dams to earthquake ground motion. Also investigated are the implications of ignoring the mass of foundation rock, an assumption that is obviously unrealistic but has been popular in professional practice. Thereafter, the authors develop an equivalent single‐degree‐of‐freedom (SDF) system to model the response of dams including dam–foundation interaction that enables estimation of the peak response directly from the earthquake response (or design) spectrum. Finally, the equivalent SDF system and the response spectrum analysis procedure are extended to include combined dam–water–foundation interaction.
Fundamental Mode Response of Dams Including Dam–Water–Foundation Interaction
In this chapter, considering only the fundamental mode of vibration of the dam, the authors develop a procedure for analysis of dam response including dam–foundation interaction. Response results determined by this analysis procedure enable people to identify the effects of dam–foundation interaction and how they influence the vibration properties – natural vibration period and damping ratio – and response of concrete gravity dams to earthquake ground motion. Also investigated are the implications of ignoring the mass of foundation rock, an assumption that is obviously unrealistic but has been popular in professional practice. Thereafter, the authors develop an equivalent single‐degree‐of‐freedom (SDF) system to model the response of dams including dam–foundation interaction that enables estimation of the peak response directly from the earthquake response (or design) spectrum. Finally, the equivalent SDF system and the response spectrum analysis procedure are extended to include combined dam–water–foundation interaction.
Fundamental Mode Response of Dams Including Dam–Water–Foundation Interaction
Chopra, Anil K. (author)
2020-02-25
16 pages
Article/Chapter (Book)
Electronic Resource
English