吉首大学学报（自然科学版）2024，Vol.45Issue(3)：19-28,10.DOI:10.13438/j.cnki.jdzk.2024.03.004
船舶碰撞作用下通航孔桥墩的抗撞性能评估
Impact Resistance Performance Assessment of Bridge Piers in Navigable Holes Under the Action of Ship Impact
摘要
Abstract
Considering the complex navigational environment of waterways spanned by bridges,which are prone to ship-bridge collision accidents,this study evaluates the impact resistance performance of naviga-tional pier columns of a certain cross-river cable-stayed bridge project under the action of ship impacts.The LS-DYNA simulation software is used to model the process of ship impacting on the pier,obtaining the impact force of the ship.Subsequently,the mechanical response of the pier under a combination of loads including ship impact,self-weight,and buoyancy is calculated,and these responses are compared with the mechanical indicators of the pier in a critical failure state to assess the pier's resistance perform-ance.The evaluation successfully determines the resistance performance of the pier.The study's findings indicate that the bending and shear resistance checks for piers 28 # and 30 # do not meet the require-ments,necessitating reinforcement and the installation of collision protection facilities.关键词
船舶/碰撞/抗撞性能/桥梁/数值模拟Key words
ships/impact/impact resistance/bridges/numerical simulation分类
建筑与水利引用本文复制引用
李悦,晏勇,宁哲,单宏兰,罗安然..船舶碰撞作用下通航孔桥墩的抗撞性能评估[J].吉首大学学报（自然科学版）,2024,45(3):19-28,10.基金项目
National Natural Science Foundation of China(51408009) （51408009）
Project of Basic Research Funds for Uni-versities in Beijing(110052971921/062) （110052971921/062）
