Steel is prone to rust and poor performance at low temperature. Steel rusting will seriously affect the stability of the bridge, not only bring greater maintenance costs, but also serious safety risks. The poor performance of low temperature will make the steel bridge unable to operate under some severe weather conditions. However, aluminum alloy has strong corrosion resistance and low-temperature performance, so it can be widely used in a variety of climatic conditions and is durable. Although the cost of the aluminum bridge is generally high, the low maintenance cost may reduce the price gap to some extent.
At home and abroad, the research on aluminum bridge panel has been very mature and applied widely. The improved material research and development level also provide the technical guarantee for the research and development of new alloys that meet different performance requirements. In recent years, domestic aluminum producers have gradually set their sights on the industrial aluminum profile. It provides the foundation for the construction of aluminum alloy bridge.