ANALYTICAL MODELS OF FLOATING BRIDGES SUBJECTED BY MOVING LOADS FOR DIFFERENT WATER DEPTHS

作     者：ZHANG Jun MIAO Guo-ping LIU Jian-xun SUN Wen-jun ZHANG Jun The First Engineers Scientific Research Institute of the General Armaments Department, Wuxi 214035, China,MIAO Guo-ping School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University , Shanghai 200030, China LIU Jian-xun, SUN Wen-jun The First Engineers Scientific Research Institute of the General Armaments Department, Wuxi 214035, China

作者机构：The First Engineers Scientific Research Institute of the General Armaments Department Wuxi 214035 China School of Naval Architecture Ocean and Civil Engineering Shanghai Jiao Tong University Shanghai 200030China The First Engineers Scientific Research Institute of the General Armaments Department Wuxi 214035 China 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：2008年第20卷第5期

页      面：537-546页

核心收录：

学科分类：080103[工学-流体力学] 08[工学] 080104[工学-工程力学] 081502[工学-水力学及河流动力学] 0815[工学-水利工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：the National Natural Science Foundation of China (Grant No. 50379026) 

主　　题：floating bridge analytical model moving load water depth 

摘      要：There are two types of floating bridge such as discrete-pontoon floating bridges and continuous-pontoon floating bridges. Analytical models of both floating bridges subjected by raoving loads are presented to study the dynamic responses with hydrodynamic influence coefficients for different water depths. The beam theory and potential theory are introduced to produce the models. The hydrodynamic coefficients and dynamic responses of bridges are evaluated by the boundary element method and by the Galerkin method of weighted residuals, respectively. Considering causal relationship between the frequencies of the oscillation of floating bridges and the added mass coefficients, an iteration method is introduced to compute hydrodynamic frequencies. The results indicate that water depth has little influence upon the dynamic responses of both types of floating bridges, so that the effect of water depth can be neglected during the course of designing floating bridges.