Fatigue behavior analysis of steel-concrete composite bridge deck

Due to the heavy vehicle traffic and environmental attacks, deterioration of the bridge decks is usually accelerated. Bridge deck often requires repairs and the deteriorated one should be rehabilitated or replaced. For these reasons, service life of the conventional bridge deck is several times shorter than those of other primary bridge components. Therefore, this research wishes to examine behavior characteristic of steel-concrete composite bridge deck through fatigue test for the steel-concrete composite bridge deck that have higher stiffness than existent RC deck and fatigue design guide line including fatigue life characteristic.