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梁式渡槽“拟三维”流固耦合模型分析了纵向地震模拟效果。分析结果显示,采用梁式渡槽“拟三维”简化流固耦合模型不仅能很好地反映出纵向地震耦合效应,而且可以有效降低计算成本,大大提高了计算效率。因此,“拟三维”流固耦合模型可以用于大型梁式渡槽多跨联合的纵向地震动力流固耦合分析计算。
Beam aqueduct “quasi three-dimensional ” fluid-structure interaction model is used to analyze the longitudinal seismic simulation results. The analysis results show that the simplified fluid-structure interaction model using beam aqueduct “pseudo-three-dimensional” not only can reflect longitudinal seismic coupling well, but also can effectively reduce the computational cost and greatly improve the computational efficiency. Therefore, the “quasi three-dimensional” fluid-structure interaction model can be used for the longitudinal-dynamic fluid-structure interaction analysis of multi-span large-span beam aqueducts.