Journal of Jishou University(Natural Sciences Edition) ›› 2024, Vol. 45 ›› Issue (3): 19-28.DOI: 10.13438/j.cnki.jdzk.2024.03.004

• Architectural Design • Previous Articles     Next Articles

Impact Resistance Performance Assessment of Bridge Piers in Navigable Holes Under the Action of Ship Impact

LI Yue,YAN Yong,NING Zhe,SHAN Honglan,LUO Anran   

  1. (1.School of Civil Engineering,North China University of Technology,Beijing 100144,China;2.Zhonghe Dehui Engineering Technology Co.,Ltd.,Beijing 100070,China)
  • Online:2024-05-25 Published:2024-06-19
  • About author:LI Yue (1979-),male,was born in Anyang City,Henan Province,professor of School of Civil Engineering,North China University of Technology,mainly engaged in civil engineering and mechanical engineering.
  • Supported by:
    National Natural Science Foundation of China (51408009);Project of Basic Research Funds for Universities in Beijing (110052971921/062)

Abstract: Considering the complex navigational environment of waterways spanned by bridges,which are prone to ship-bridge collision accidents,this study evaluates the impact resistance performance of navigational pier columns of a certain cross-river cable-stayed bridge project under the action of ship impacts.The LS-DYNA simulation software is used to model the process of ship impacting on the pier,obtaining the impact force of the ship.Subsequently,the mechanical response of the pier under a combination of loads including ship impact,self-weight,and buoyancy is calculated,and these responses are compared with the mechanical indicators of the pier in a critical failure state to assess the pier's resistance performance.The evaluation successfully determines the resistance performance of the pier.The study's findings indicate that the bending and shear resistance checks for piers 28# and 30# do not meet the requirements,necessitating reinforcement and the installation of collision protection facilities.

Key words: ships, impact, impact resistance, bridges, numerical simulation

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