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METHOD OF UPGRADING SEISMIC PERFORMANCE OF EXISTING SPILLWAY PIERS ON DAMS AND COUPLED EARTHQUAKE-RESISTANT STRUCTURE
METHOD OF UPGRADING SEISMIC PERFORMANCE OF EXISTING SPILLWAY PIERS ON DAMS AND COUPLED EARTHQUAKE-RESISTANT STRUCTURE
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机译:堤坝上现有溢洪道墩抗震性能与抗震结构耦合的方法
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摘要
A method of improving earthquake resistance of existing spillway piers provided in a dam. The method includes a following step. End portions of a main beam and top portions of existing spillway piers are connected to each other with a high damping device having a history damping property with high primary rigidity. The high damping device has a yield displacement amount in seismic velocity smaller than a tolerance of a displacement amount of the existing spillway piers. The high damping device has a yield load value in seismic velocity greater than a maximum seismic force generated therein in a bridge-axis direction due to a large-scale earthquake.
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