Exploring the Impact of Dynamic Winds on Bridge Safety
DOI:
https://doi.org/10.54097/sxyffv14Keywords:
Bridge wind resistance; wind tunnel test; numerical simulation.Abstract
As a kind of infrastructure, bridges are of great significance in transportation connection, promoting regional economic development and enhancing cultural and economic development. However, bridges face safety issues such as structural aging and corrosion, the effects of natural disasters, and traffic overloading and vibration. Among them, the Tacoma Bridge in the U.S. unexpectedly collapsed in a wind environment far below the design strength. This has led experts and scholars to expand the design of bridges against the wind from the static wind level to the dynamic wind level. This paper explores the impact of dynamic wind on bridge safety in this research context. Four types of bridge vibration caused by dynamic wind and their damaging effects and hazards will be introduced from various dimensions. It will summarize the methods of wind tunnel testing and numerical simulation to assess the risk of wind exposure of bridges, and propose some relevant wind-resistant measures, such as adopting reasonable design means, strengthening wind load calculation, installing effective vibration-damping devices, and regular maintenance. The purpose of this paper is to provide help for the research on wind resistance of bridges and the construction of bridge projects.
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