Weather-resistant steel has been used for bridge structures in the United States and Japan because of its immortal beauty, bringing advantages such as reducing self-weight, saving maintenance costs, and improving construction efficiency. In this process, the performance of weather-resistant bridge steel is continuously improved and developed into high-performance bridge steel.
Recent years, more and more domestic traffic planning and design institutes have paid attention to and selected weather-resistant bridge steels. Nanjing Dashengguan Yangtze River Bridge, Shenyang Houxiang Highway Bridge, Weihe No. 2 Bridge in Meixian County, and Puhai New Area Cross-sea Bridge in Dalian have appeared. Wait for a batch of engineering practice. With the continuous accumulation of weather-resistant bridge steel application technology and experience, and the revision of relevant standards and regulations, domestic bridge construction will enter the era of weather-resistant bridge steel.
The outstanding advantages of non-painting bridge weather-resistant steel are:
Green environmental protection: sustainable development is an important sign and development direction of bridge technology progress;
Reduce costs: reduce initial costs (saving painting costs, shorten construction cycle); reduce life cycle costs (no need to repaint, reduce traffic delays caused by maintenance);
Shorten the construction period: no painting is needed for factory manufacture, and no painting is required for on-site erection; simplified maintenance.
