桥梁撞击问题2019年度研究进展

State-of-the-art review of bridge impact research in 2019

桥梁撞击是影响桥梁建设和运营的一个关键问题,学者们对此进行了大量工作,并取得了积极的进展。为进一步促进桥梁撞击与防护方面的研究,回顾了2019年桥梁撞击事件及科学研究现状,主要从船撞、落石撞击、车撞等3方面对目前研究热点进行简要归纳总结,并从已有研究的拓展、新材料、新型结构、新的理论方法等方面展望桥梁撞击灾变和防控的研究趋势。近场动力学研究方法的引入将有助于加深对碰撞本质的认识,也将为桥梁撞击问题分析突破传统思维瓶颈提供新的路径。

The impact of the bridge is a key problem that affects the construction and operation of the bridge.Scholars have conducted a large amount of research on it and made positive progress.To promote research on the impact of bridges,the authors review the bridge collision events and the current situation of scientific research in 2019,summarize the current analysis hot spots from three aspects of ship collision,rockfall impact and vehicle collision,look forward to the research trend of bridge collision disaster,prevention and control,and the research trend of bridge impact disaster and prevention and control from the aspects of existing research expansion,new materials,new structures and new theoretical methods,among which the introduction of peridynamic research method will open a new window for the mechanism analysis of bridge collision.Among them,the introduction of peridynamic research method will help to deepen the understanding of the nature of collision,and provide a new path for the analysis of bridge impact problems to break through the bottleneck of traditional thinking.