新型桥墩防撞装置研究

近年来船舶撞击桥墩的事故频繁发生,日益增多的船撞桥事故对桥梁防船撞研究提出了新的迫切要求。介绍了船桥碰撞研究现状,运用LS-DYNA软件建立了船舶撞击桥墩的计算模型。分别对无防护装置和有防护装置进行了数值模拟,对比其碰撞力演变、桥墩位移变形和能量吸收等结果;并对其进行了详细分析,得到了关于防撞效果的相应结论。研究结果对今后桥梁结构的防撞装置设计有一定的参考意义。

Research on new type of bridge pier anti-collision device

In recent years, ship-bridge collision accidents occur frequently. The increasing number of ship collision accidents has put forward a new urgent requirement to the study of anti-ship collision. This paper introduced the current situation of ship-bridge collision research, using LS-DYNA software, established a ship impacting bridge pier computational model, and conducted the numerical simulation of bridge pier with and without anti-collision device respectively, compared the results of the evolution of the impact force, displacement deformation and energy absorption, and carried out the detailed analysis of the result, obtained the corresponding conclusions about the effect of anti-collision. The research results have certain reference significance to the design of anti-collision device of bridge structure in the future.