桥梁防撞夹层吸能结构的船舶碰撞性能及损伤研究
Study on the Impact Performance and Damage of Sandwich Energy Absorbing Structure Under Ship Collision for Protecting Bridge
寇海平 1陈宇恒 2周初阳 3潘晋 3许明财4
作者信息
- 1. 湖北交投江汉高速公路运营管理有限公司 荆州 434000
- 2. 华中科技大学船舶与海洋工程学院 武汉 430074
- 3. 武汉理工大学船海与能源动力工程学院 武汉 430071
- 4. 华中科技大学船舶与海洋工程学院 武汉 430074;武汉力拓桥科防撞设施有限公司 武汉 430040
- 折叠
摘要
本文根据乌龙江大桥的基本情况、防撞等级要求,设计了加筋板、波纹夹层和填充泡沫的波纹夹层防撞套箱三种形式.建立船舶、防撞结构、桥墩的有限元模型,采用数值方法模拟船舶撞击防撞结构的动态过程.对比分析三种防撞套箱在船舶撞击下的撞击力、结构变形和能量吸收性能.结果表明:在钢套箱外面增加夹层结构,可明显提高吸能能力,减小防撞结构的损伤.
Abstract
According to the basic situation and anti-collision grade requirements of Wulongjiang Bridge,three types of anti-collision boxes were designed:stiffened plate,corrugated interlayer and corrugated interlayer filled with foam.The finite element model of ship,anti-collision structure and pier was es-tablished,and the dynamic process of ship impacting anti-collision structure was simulated by numeri-cal method.The impact force,structural deformation and energy absorption performance of three kinds of anti-collision boxes under ship impact were compared and analyzed.The results show that adding sandwich structure outside the steel box can obviously improve the energy absorption capacity and reduce the damage of the anti-collision structure.
关键词
船舶/桥梁/碰撞/有限元法/吸能结构Key words
ship/bridge/impact/finite element method/energy absorbing structure引用本文复制引用
出版年
2024
NETL
NSTL
万方数据