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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    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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History
  • Received:July 06,2021
  • Revised:July 06,2021
  • Adopted:July 08,2021
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