内河船舶撞击桥墩承台的计算方法比较  

Comparative Analysis and Calculation Concerning Pier Caps Hit by Inland River Ships

作　　者：黎晓刚 谭旺 夏雪[2] LI Xiaogang;TAN Wang;XIA Xue(Guangzhou Expressway Co.,Ltd.,Guangzhou 510030,China;Shanghai Ship and Shipping Research Institute Co.,Ltd.,Shanghai 200135,China)

机构地区：[1]广州市高速公路有限公司,广州510030 [2]上海船舶运输科学研究所有限公司,上海200135

出　　处：《上海船舶运输科学研究所学报》2022年第6期1-6,共6页Journal of Shanghai Ship and Shipping Research Institute

摘　　要：在船-桥碰撞中,桥梁的变形和位移相对于船撞桥的变形和位移来说可忽略不计,二者间的撞击动能基本上被船舶以变形能的形式吸收。为探究船-桥碰撞计算问题,选用内河水域能量等级偏大和能量等级偏小的船舶模型,分别用刚体和钢筋混凝土模拟桥墩,进行碰撞仿真计算,结果表明:将桥墩视为刚体对碰撞力和船舶损伤变形计算结果的影响很小,在船-桥碰撞计算中可忽略桥梁的吸能和变形,将其视为刚体可减少计算工作量和缩短计算时间。In ship-bridge collision,both bridge and ship have deformation and displacement,but the deformation and displacement value of the bridge,relative to the that of the ship,is very small,Ship collision kinetic energy are largely absorbed in the form of ship deformation energy.For inland river ship types of higher energy level and of lower energy level,this paper calculates the collision between assumed rigid pier or actual concrete pier and one of the specified ship,respectively.The analysis of the calculation results shows that the bridge pier can be regarded as a rigid body,on which the impact of collision force is very small compared to ship damage deformation.It is reasonable to ignore the energy absorption and deformation of bridge piers in calculation to reduce the calculation workload and shorten the calculation time.

关 键 词：船-桥碰撞 有限元仿真 刚性桥墩 混凝土桥墩 

分 类 号：U661.3[交通运输工程—船舶及航道工程]