Review on Global Development of Weathering Steel Bridges
In order to promote the progress and development of weathering steel bridge technology in China,a comprehensive review was conducted on the technical status of weathering steel bridges in the United States,Japan,Europe,and China.The review covered five aspects:engineering application,performance requirements of weathering steel bridges,design considerations,connections and maintenance techniques.The analysis reveals that weathering steel bridges are extensively utilized in the United States and Europe with favorable outcomes.Japan has experienced a decline in the proportion of weathering steel bridges over time after reaching its peak around 2008.Through years of engineering applications and technological advancements,the United States,Japan and Europe have achieved relative maturity regarding weathering steels selection as well as design considerations,connections,and maintenance techniques.China's application of weathering steel bridges has witnessed significant progress in recent years with numerous successful projects implemented across highway and railway infrastructure.Practical experience clearly demonstrates that the effectiveness of utilizing weathering steel bridges is closely linked to environmental conditions and climate factors.Therefore it is crucial to accumulate practical knowledge during implementation such as surface treatment techniques for stable rust layers;indices for climatic conditions;along with zoning guidelines specific to domestic applications of weathering steel bridge technology.
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万方数据
