船撞效应分析在船舶碰撞桥梁隐患治理中的应用  

Application of ship collision effect analysis in the treatment of hidden danger of ship-bridge collision

作　　者：张晓丹 王伟峰 张贵宾[2] 李军 李文全 李昕 ZHANG Xiaodan;WANG Weifeng;ZHANG Guibin;LI Jun;LI Wenquan;LI Xin(Changjiang Waterway Institute of Planning and Design,Wuhan 430041,China;Changjiang River Administration of Navigational Affairs,M.O.T.,Wuhan 430001,China)

机构地区：[1]长江航道规划设计研究院,武汉430041 [2]交通运输部长江航务管理局,武汉430001

出　　处：《水道港口》2023年第5期780-785,793,共7页Journal of Waterway and Harbor

基　　金：国家自然科学基金资助项目(52271326)。

摘　　要：随着长江下游航道条件的改善,船舶大型化发展、船舶流量增加,通航桥孔桥墩防撞要求提高,有些已建老桥抗撞能力不足,需增加防撞设施。采用经验公式计算法和有限元瞬态动力分析法,计算分析了桥墩增加防撞装置后多个典型工况下的船撞力,对设计的防撞设施的消能效果进行评估,对极限工况进行辨别,并提出了桥梁运营管理的综合施策建议,为类似老桥增设防撞装置提供借鉴。With the improvement of channel conditions,the tendency of large-scale for ships and the increase of water traffic flow in the lower reaches of the Yangtze River,anti-collision requirements of navigable bridge span and pier raise obviously,anti-collision facilities are needed to be added for some old bridge.The ship impact force of a bridge pier with and without anti-collision facility was calculated with the software LS-DYNA and empirical formula respectively in this paper.The dissipation effect was evaluated for the designed anti-collision facilities,the limiting conditions were selected and recommendations of bridge operation management were offered.The results obtained by this paper can be used as the reference for the anti-collision facility construction of old bridges.

关 键 词：设防代表船型 撞击速度 最大撞击力 防撞装置 消能效果 极限工况 主动预警 综合施策 

分 类 号：U65[交通运输工程—港口、海岸及近海工程] TU447[交通运输工程—船舶与海洋工程]