湖南大学学报（自然科学版）Issue(3)：106-111,6.
夹层结构曲面环形浮式桥墩防撞套箱碰撞分析∗
Impact Analysis of the Bridge Pier Anti-collision Floating Box Sets Made by Sandwich Structure with Curved-shaped
摘要
Abstract
To improve the crashworthiness of bridge piers,a new type of annular anti-collision box with curved-shaped made by steel-polyurethane-steel sandwich plate was proposed.Using the ANSYS/LS-DYNA software with explicit dynamic transient nonlinear,the simulation model of ship collision with pier was established.This paper ana-lyzes the energy conversion between the ship,the anti-collision box,the rubber fender and the pier with the changes of the impact force and the speed of the ship in impact process.It also analyzed the stress and deformation of impact parts of anti-collision box.The results show that the bridge pier's annular anti-collision box with curved-shaped made by the sandwich plate can absorb 70% of the ship impact energy when the anti-collision box is unfavorably impacted, and that the anti-collision box has a saving stiffening plates and brackets,simple structure,and light weight.The study not only shows that the anti-collision box can fully play the impact property and excellent elastoplastic property of the sandwich plate itself,but also provides a theoretical basis for its engineering application.关键词
桥梁工程/防撞设施/夹层结构/曲面套箱/碰撞分析Key words
bridge engineering/cushioning facilities/sandwich structure/curved-shaped box/impact analysis分类
交通工程引用本文复制引用
许薛军,单成林..夹层结构曲面环形浮式桥墩防撞套箱碰撞分析∗[J].湖南大学学报（自然科学版）,2015,(3):106-111,6.基金项目
国家自然科学基金资助项目(51278201),National Natural Science Foundation of China(51278201) （51278201）
广东省交通运输厅科技项目(粤交科2012-02-021,2011-02-042) （粤交科2012-02-021,2011-02-042）
广东省公路管理局科技项目(粤公研2011-28) （粤公研2011-28）
