To understand the performance of high strength weathering steel (HSWS) and its technical application in bridge engineering

this paper first summarizes the research progress and achievement of weathering steel (WS) applied to bridge engineering at home and abroad

and reviews the development history of the WS technology. Then

the corrosion mechanism

corrosive environment

and corrosion resistance of HSWS

as well as the corrosion evaluation methods are analyzed. Moreover

the weld performance of HSWS

and the corrosion-fatigue (C-F) performance and evaluation methods of WS are summarized. Finally

the application of HSWS to bridge engineering and the test situations of Chinese HSWS are elaborated. Analysis result indicates that although the technology of Chinese WS has achieved great improvement

the technology of Chinese WS bridges is still in an embryonic stage. Study on strength

stabilization

and fatigue of WS bridges under corrosion effect will be the future research orientation. The fatigue strength of WS bridges can be promoted by utilizing new weld technology to critical part. The fatigue and mechanics performance of Chinese HSWS can meet the requirement of bridge construction

and those of corroded HSWS are worth in-depth study. In addition

C-F model based on electrochemistry corrosion and fracture mechanics can be utilized to evaluate the C-F life of HSWS.