Why weathering steel can be used in bridge manufacturing?

Weathering steel has been used in bridge structures earlier in the United States and Japan because of its good corrosion resistance, which brings advantages such as reducing dead weight, saving maintenance costs, and improving construction efficiency. In this process, the performance of weather-resistant bridge steel has been continuously improved and developed into high-performance bridge steel.

In recent years, more and more traffic planning and design institutes have paid attention to and selected weathering bridge steel, such as Nanjing Dashengguan Yangtze River Bridge, Shenyang Houdingxiang Highway Bridge, Weihe No. 2 Bridge in Meixian County, Shaanxi Province, and Dalian Puwan New District Cross-sea Bridge. A batch of engineering practices. With the continuous accumulation of application technology and experience of weathering bridge steel and the revision of relevant standards and specifications, domestic bridge construction has entered the era of weathering bridge steel.

The main advantages of weathering steel for bridge manufacturing are:

1.Green environmental protection: sustainable development is an important symbol and development direction of bridge technology progress;

2.Reduce costs: reduce initial costs (saving painting costs, shortening the construction period); reducing life cycle costs (no need to repaint, reducing traffic delays caused by maintenance);

3.Shorten the construction period: no painting is required for factory manufacturing, and no painting is required for site erection; simplifying maintenance.