新型三桩式防撞设施的数值模拟分析

针对目前通航河道上船舶撞桥事故频发,而桥梁往往缺乏有效防撞设施的现状,提出新型三桩式桥梁防撞设施的设计方案.三桩式桥梁防撞设施具有占地少、造价低和吸能效果明显等优点,能够满足运河桥墩防撞的要求.根据船舶与桥梁碰撞的相关理论,采用ANSYS/LS-DYNA非线性有限元软件模拟船舶与三桩式防撞设施的碰撞作用,深入分析和评估...

Numerical Simulation Analysis of New Three-pile Anti-collision Facility

The design plan of new three-pile anti-collision facilities is proposed so as to improve the existing condition that ship collides with bridge in navigable channel with high frequency and no effective anti-collision facilities is mounted on the bridge. The above facilities may meet the anti-collision requirements of canal bridge pier, which is of the following advantages, i.e. less area occupied, lower cost and distinct energy absorbing effect. According to ship-bridge-collision theory, non-linear finite element software ＇ANSYS/LS-DYNA＇ is applied to simulate the collision between ship and three-pile anti-collision facility, analyze and evaluate thoroughly the collision damage and energy absorbing effect of ship and anti-collision structure, which will provide the reference for the anti-collision design of canal bridge pier.