变截面桥墩防撞装置性能  

Performance of anti-collision device of variable cross-section pier

作　　者：夏祖国[1] 李军[1] 

机构地区：[1]武汉理工大学交通学院,武汉430070

出　　处：《上海海事大学学报》2010年第4期63-67,共5页Journal of Shanghai Maritime University

摘　　要：为给变截面桥墩的防撞设计提供依据,根据变截面防撞装置的基本结构和工作原理,用有限元软件LS-DYNA建立防撞装置和船舶有限元模型,并对3种不同工况下5 000 t货船与某Y型桥墩防撞装置碰撞过程中的能量转化、撞击力和防撞装置结构损伤程度等进行仿真分析.结果表明,撞击力随撞深的增加而增大,当撞深达到最大时撞击力也达到最大.In order to provide basis for the anti-collision design for variable cross-section pier,according to the basic structure and working principle of the anti-collision device with variable cross-section,the finite element model of anti-collision device and ship is established by using finite element software LS-DYNA.The energy transform,the collision force and the degree of device damage in the head-on colli-sion process between a 5 000 t cargo ship and anti-collision device of a Y type pier under three different conditions are simulated.The results show that the collision force increases with the increase of the pene-tration,and the collision force reaches the maximum when the penetration reaches maximum.

关 键 词：船桥碰撞 变截面防撞装置 撞深 

分 类 号：U443.22[建筑科学—桥梁与隧道工程] U441.4[交通运输工程—道路与铁道工程]