سال انتشار: ۱۳۹۱

محل انتشار: نهمین کنگره بین المللی مهندسی عمران

تعداد صفحات: ۸

نویسنده(ها):

Naser Shabakhty – Assistant Professor, Faculty of Civil Engineering, University of Sistan & Baluchestan
S.Morteza Honarvar – M.Sc. student in Civil Engineering, University of Sistan & Baluchestan

چکیده:

Steel bridges structures are subjected to repeated cyclic stresses due to traffic load. The damage accumulation of these cyclic stresses can initiate cracks in a members leading to fatigue failure. The randomness of the nature of vehicle-induced fatigue load in combination of fatigue strength may cause toincrease uncertainty in the prediction of the bridge fatigue life. In this research, the fatigue detail coefficient A, and the equivalent stress range ,