波浪作用下带式舟桥的水弹性分析

Study on a Ribbon Bridge in Waves Based on Hydroelasticity Theory

研究带式舟桥在波浪作用下的水弹性性能.介绍了预报浮桥动力响应的不同方法及它们与试验比较的结果.在三维水弹性理论的基础上,采用模态叠加法对带式舟桥的有限元模型进行了水弹性分析,并与模型试验结果进行比较.结果表明,采用文中的方法计算分析波浪中浮桥的水弹性响应是可行的.

For the design and operation of a floating bridge, the understanding of its hydroelastic behavior in waves is of great importance. This paper investigated the hydroelastic performances of the ribbon bridge under wave actions. A brief introduction of the estimaticn of the dynamic responses of floating bridge and the corresponding comparisons to the experiments was presented. Based on the 3D hydroelasticity theory, the hydroelastic behavior of a ribbon bridge modeled by FEM was analyzed by employing the mode superposition method. And the relevant comparisons between the numerical results and experimental data obtained from a one tenth scale elastic model test in the ocean basin were carried out. It is found that the present method is applicable and adaptable to predict the hydroelastic response of the floating bridge in waves.