超大船舶吨级航道桥梁防船撞设计研究  

Research on Anti-collision Design of Bridge on Tonnage Navigation Channel with Super-large Ship

作　　者：孙大奇 刘晓光 郭辉 许明财[3] 王芳 朱颖 赵欣欣 曾广武 SUN Daqi;LIU Xiaoguang;GUO Hui;XU Mingcai;WANG Fang;ZHU Ying;ZHAO Xinxin;ZENG Guangwu(China Academy of Railway Sciences,Beijing 100081,China;Railway Engineering Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;School of Naval Architecture&Ocean Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Engineering Management Center,CHINA RAILWAY,Beijing 100038,China)

机构地区：[1]中国铁道科学研究院,北京100081 [2]中国铁道科学研究院集团有限公司铁道建筑研究所,北京100081 [3]华中科技大学船舶与海洋工程学院,武汉430074 [4]中国国家铁路集团有限公司工程管理中心,北京100038

出　　处：《铁道建筑》2021年第2期6-11,32,共7页Railway Engineering

基　　金：中国铁路总公司科技研究开发计划(2017G004-B);中国铁道科学研究院基金(2018YJ046)。

摘　　要：针对目前对桥墩受船舶撞击的影响参数尚不明确的情况,以一座千米级公铁两用斜拉桥为工程背景,基于船舶自动识别系统数据统计分析结果,得到船舶船型、吨位、航速等参数并开展了船桥碰撞分析,提出了桥梁防船撞设施设计方法,通过有限元仿真分析对提出的防撞设施性能进行了不同工况下的计算分析。研究结果表明:未安装防撞设施时,船舶与桥梁碰撞过程时间短、船撞力峰值出现得很快、船撞力大;钢+橡胶阻尼多级消能浮式模块化防撞设施具有延长船桥碰撞作用时间、推迟船撞力峰值出现时间、缓冲吸能等效果,且便于更换,可有效降低桥墩承受的船撞力70%以上。In view of the unclear situation of the influence parameters of bridge ship collision,a kilometer-class railcum-road bridge cable-stayed bridge was taken as the engineering background.Based on the statistical analysis results of the ship’s AIS(Automatic Identification System)data,the ship type,tonnage,speed and other parameters were obtained and the ship bridge collision analysis was carried out.Through the finite element simulation analysis,the performance of the proposed anti-collision facilities was calculated and analyzed under different working conditions.The results show that without the anti-collision facilities,the ship bridge collision process time is short,the ship collision force peak appears quickly,and the ship collision force is large.The steel+rubber damping multi-stage energy dissipation floating modular anti-collision facilities have the effects of prolonging the ship collision action time,delaying the ship collision force peak appearing time,buffering energy absorption,and are easy to replace,which can effectively reduce the ship collision force of the bridge piers by more than 70%.

关 键 词：船桥碰撞 防撞设施 AIS数据分析 船撞力 LS-DYNA 碰撞时间 

分 类 号：U443.26[建筑科学—桥梁与隧道工程]