Experimental and Numerical Comparative Study on Gravity Dam-Reservoir Coupling System
Experimental and Numerical Comparative Study on Gravity Dam-Reservoir Coupling System
- New search for: Wang, Mingming
- New search for: Chen, Jianyun
- New search for: Xiao, Weirong
- New search for: Wang, Mingming
- New search for: Chen, Jianyun
- New search for: Xiao, Weirong
Abstract A 203m high gravity dam-reservoir coupling system in earthquake is studied experimentally and numerically in this work. The dynamic model test is performed on a shaking table, and the dynamic process of the coupling system is simulated with two numerical methods. The natural frequency, hydrodynamic pressure on upstream and acceleration amplification factors along the dam height are obtained from the test and the methods. It is found that the results from FSCM agree better with those from test compared with AMM. So the FSCM should be the first choice to analysis the dam-reservoir coupling system interaction under earthquake. The AMM, which is frequently used in the Code for Seismic Design of Hydraulic Structures of many countries, needs to be modified by a factor smaller than 1. The factor varies along the height of the dam according to its shape, reservoir depth and higher modes and so on. Finally, the reduction factors of the AMM along dam height are suggested in this work.
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Experimental and Numerical Comparative Study on Gravity Dam-Reservoir Coupling System
KSCE Journal of Civil Engineering ; 22 , 10 ; 3980-3987
2018-05-31
8 pages
Article (Journal)
Electronic Resource
English
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Experimental and Numerical Comparative Study on Gravity Dam-Reservoir Coupling System
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