鋼道路橋の疲労設計のための垂直補剛材取付け部の変動荷重実験

Abstract

A long-life variable amplitude fatigue test is performed using plate girder specimens with four types of transverse stiffener connections under highway traffic loading. Fatigue cracks are initiated from the fillet weld toe at the stiffener end on both the tension side and compression side, from blow holes contained in web-to-flange longitudinal fillet welds, and from the transverse fillet weld toe of the patch plate on the compression flange. The fatigue failure life of all four details of the transverse stiffener connections satisfies the condition of JSSC category D.