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该文以深水桥墩为研究对象,采用FSI考虑水对桥墩地震响应的影响,分析比较了不同水深、不同水域面积以及不同壁厚情况下流固耦合作用对桥墩地震响应的影响。得出考虑墩水耦合作用不仅增大了墩底地震响应的最大值,并且使墩底响应最大值发生的时刻也有所改变;随着水深的增加,流固耦合作用对墩底响应的影响增大;随着壁厚的增大,流固耦合效应对空心桥墩墩底地震响应的影响逐渐减小。
Taking the deepwater pier as the research object, the influence of water on the seismic response of the bridge piers is investigated by using FSI. The effect of fluid-solid interaction on the seismic response of the bridge pier under different water depths, different water areas and different wall thicknesses is analyzed and compared. It is concluded that the coupled effect of pier and water not only increases the maximum value of pier response but also changes the moment of maximum pier response. With the increase of water depth, the effect of fluid-structure interaction on pier response increases With the increase of wall thickness, the effect of fluid-solid coupling effect on the seismic response of hollow piers bottom gradually decreases.