桥梁撞击问题2020年度研究进展
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西南交通大学

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四川省科技厅应用基础研究(2020YJ0077);中央高校基本科研业务费(2682016CX010);西南交通大学高层次人才队伍建设科研项目(10101X10096077).


New progress and prospect of bridge impact research in 2020
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Southwest Jiaotong University

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Applied Basic Research Project of Sichuan Science and Technology Department (2020YJ0077), the Science and Technology Innovation Project for the Central Universities (2682016CX010) and the Scientific Research Projects for Building High-level Faculty in Southwest Jiaotong University (10101X10096077).

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    摘要:

    桥梁撞击是既有以及在建桥梁长期面临的一个关键问题,撞击与防护问题研究符合国家发展需求;国内外学者近年来对其关注度也不断增多。继《桥梁撞击问题2019年研究进展》,作者对2020年桥梁船撞、落石冲击和车撞桥梁等三方面的进展进行归纳总结。其中,对于桥梁船撞问题,新规范明确提出了公路桥梁主体结构宜采用基于性能的抗撞设计方法。2020年也发生了一系列采砂船撞击桥梁事故、雅西高速桥梁被落石砸断等,以及多起车桥碰撞事件。作者对这些桥梁撞击事件进行了梳理,并根据个人理解对近一年的相关成果进行分析,之后提出了在未来的研究中需要进一步考虑的问题。

    Abstract:

    Bridge impact is a key problem for existing bridges and bridges under construction for a long time. The research on impact and protection problems meets the needs of national development. In recent years, scholars at home and abroad have paid more and more attention to bridge impact, and conducted a lot of researches. Following the New Progress and Prospect of Bridge Impact Research in 2019, the author continues to summarize the progress in 2020 in three aspects, such as bridge ship collision, rockfall impact and vehicle collision bridge. Among them, for the bridge ship collision problem, the new code clearly proposes that the main structure of highway bridge should adopt the performance-based anti-collision design method. In 2020, a series of sand mining vessel collision accidents, the broken of Yaxi high-speed bridge, and many vehicle bridge collision events have occurred. The author sortes these bridge impact events, analyzes and summarizes the relevant achievements in the past year according to personal understanding, and then puts forward the problems that need to be further considered in the future research.

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  • 收稿日期:2021-07-06
  • 最后修改日期:2021-07-06
  • 录用日期:2021-07-08
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