To improve the application of weathering steel in bridge constructions

corrosion fatigue test can be adopted as an effective approach to investigate its fatigue performance under corrosion. First

the classification of the corrosivity of environment

uniform corrosion

and pitting corrosion were introduced

and the effects of corrosion on the fatigue performance of steel were briefly described. Next

three typical types of fatigue tests were reviewed

and results of both domestic and international studies were summarized and analyzed. Then

the content of corrosion fatigue test was summarized

including design of steel specimens

corrosion test methods

and fatigue test methods. Finally

a series of fatigue tests were carried out on 20 corroded HPS 485W and Q345CNH steel specimens

and results were compared with naturally corroded weathering steel specimens. Results indicate that corrosion environment can greatly influence the corrosion of steel

in which the pitting corrosion is a critical factor that can induce the initiation of fatigue cracks. Meanwhile

relevant experimental studies need to be carried out orderly and hierarchically although there are many different kinds of corrosion fatigue test methods. Besides

the design optimization of specimens should be made based on the related codes

and it is critical to take into account of the excessive energy dissipation of specimens during fatigue tests. In experiment process

a reasonable control of corrosion environment conditions is crucial to guarantee the expected test results. It is worth noting that the fatigue strength of the weathering steel specimens decreased significantly after the salty spraying dry/wet corrosion test

and the scatter in data was notably reduced compared with those of uncorroded specimens. Based on the combination of natural corrosion test and accelerated corrosion test

the progresses from weathering fatigue test to corrosion-fatigue test and from small specimen to structural specimen can be gradually realized.