桥梁防船撞钢套箱的碰撞力快速估算

PDF(2105 KB)

振动与冲击 ›› 2014, Vol. 33 ›› Issue (8) : 66-71.

论文

桥梁防船撞钢套箱的碰撞力快速估算

潘晋1，张敏1，许明财2

作者信息 +

Rapid assessment of collision force between ship and steel box of bridge protection

Pan Jin 1, Zhang Min 1,Xu Ming-cai2

Author information +

文章历史 +

摘要

研究船舶与单墩桥梁防撞钢套箱艏尖舱的碰撞过程，探讨碰撞力快速估算及防撞装置模块化设计的可行性。首先采用非线性有限元方法模拟1 000吨级三峡标准散货船与钢套箱式桥梁防船撞装置的碰撞过程，分析了防撞钢套箱艏尖舱在不同的斜边角和船舶碰撞速度下的能量吸收特性以及传递至桥墩的碰撞力特性，得到的结果可为防撞钢套箱外形的选择提供参考。对所选择的防撞钢套箱形式，采用Boltzmann函数拟合了撞击船速与桥梁所受横桥向及顺桥向碰撞力之间的关系，该拟合公式可以用于此类防撞钢套箱方案设计阶段的撞击力快速估算。

Abstract

The aim of this paper is to investigate the design method of protection device for single bridge pier in order to against 1 000 DWT ship collision. The nonlinear FE analysis is used to simulate the collision procedure between the Yangtze River standard bulk carriers and the steel box of bridge protection. The influences of slope angle of the protection device bow on the absorption characteristics and the collision force are investigated. The results of analysis could be as reference for designing steel box of bridge protection against ships collision. The Boltzmann equation is adopted to fit the relationship between velocities of the striking ship and collision forces of bridge pier, which could be used for rapid assessment of collision forces in the primary design for this kind of protection device.

导出引用

潘晋;张敏;许明财. 桥梁防船撞钢套箱的碰撞力快速估算[J]. 振动与冲击, 2014, 33(8): 66-71

Pan Jin;Zhang Min;Xu Ming-cai. Rapid assessment of collision force between ship and steel box of bridge protection [J]. Journal of Vibration and Shock, 2014, 33(8): 66-71