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Simplified analytical solution for free vibration
characteristics of Hardfill dam |
| XIAO Wei, HE Yunlong, ZHANG Yanfeng |
| State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University |
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Abstract Formulas for computing natural frequencies and modes of Hardfill dams are derived based on one-dimensional shear wedge theory, in which the influences of the upstream concrete face and hydrodynamic pressure of water on the dams’ natural frequencies and modes are discussed. Furthermore, the seismic responses of Hardfill dams are calculated using response spectrum method. An example is analyzed to compare the differences of natural frequencies and modes between shear wedge method and FEM. Then the applicability and accuracy of shear wedge method to analyze free vibration characteristics of Hardfill dams are proven.
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Issue Date: 05 September 2008
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