Numerical Simulation of a Cable-Stayed Bridge Subjected to Ship Collision

Xiao Qing Zhou, Jia Zhu Hong, Yong Xia

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Long-span cable-stayed bridges are subjected to the risk of collision from passing ships. Conducting experimental study on the collision of bridges and vessels is difficult due to high cost and limited space. In this paper, the behavior of a 1018-m long-span cable-stayed bridge subjected to ship collisions is numerically studied. Finite element models of the entire bridge and ships are established. Four different dead weight tonnages (DWT), namely, 2700, 12000, 30000, and 75000t, with impact velocities of 1m/s to 6m/s are investigated. The complete collision process under different loading scenarios is simulated, from which the collision force, bridge responses and local damage are obtained. The calculated collision force is significantly affected by the impact velocity and DWT, and exhibits a linear relationship with the impact velocity. Comparison with design codes shows that different codes vary significantly in estimating the collision force and Eurocode provides most accurate results. The effect of the material model on the collision force is also studied. This numerical study provides a reference for the ship collision design of long-span cable-stayed bridges.

Original languageEnglish
Article number2150086
JournalInternational Journal of Structural Stability and Dynamics
DOIs
Publication statusAccepted/In press - 2021

Keywords

  • collision force
  • finite element method
  • long-span cable-stayed bridge
  • numerical simulation
  • Ship-bridge collision

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Aerospace Engineering
  • Ocean Engineering
  • Mechanical Engineering
  • Applied Mathematics

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