Analysis of Fatigue Life and Corrosion Influence of Steel Box Beam of Hongdao Channel Bridge

Based on measured data, the fatigue life of steel box beam of Hongdao channel bridge was analyzed, and the corrosion effect on fatigue performance was studied. The results show that the steel box beam has good fatigue resistance according to the measured data, so the designed life can exceed predicted life. Steel box beam also has good fatigue resistance in marine corrosion environment, so that the fatigue damage would not be caused by corrosion.