福州乌龙江大桥船舶撞击力数值模拟与分析  

The Numerical Simulation and Analysis of the Ship Impact Load on WuLongJiang Bridge

作　　者：吴福坦 

机构地区：[1]福州市公路局,福建福州350000

出　　处：《福建建筑》2013年第12期19-22,共4页Fujian Architecture & Construction

摘　　要：本文围绕福州乌龙江大桥船撞问题,对该桥3#桥墩船舶撞击力分别进行了经验公式求解和有限元数值模拟,得出了该桥在代表船型与船速下的船舶撞击力。通过对分析结果的对比分析发现,各种方法得到的结果存在较大的差异,综合比较后建议以有限元数值仿真模拟结果作为该桥船撞力标准值。根据本文的研究结果建议在桥墩周围设置一道柔性防撞设施,以减小船舶撞击对结构安全性带来的影响。Centered around the ship impact problem of Wulongjiang Bridge in Fuzhou, both empirical formula method and FEA numerical simulation are taken to calculate the ship impact loads of pier 3#, the ship impact loads due to typical ship model and velocity are also obtained. Comparison between the results in- dicate that great differences are found among them, then the result of FEA numerical simulation is recommended as the characteristic value of this bridge. Ac- cording to these investigations flexible anti - bumping devices are suggest being installed around the piers to reduce the ship impact effect on the safety of the structure.

关 键 词：经验公式 数值模拟 船舶撞击力 防撞设施 桥墩 

分 类 号：U443.86[建筑科学—桥梁与隧道工程]