Examination about fatigue design model of steel arched bridge

Abstract

In recent years, the crack damage by fatigue was confirmed in steel bridges, as a result, the design did fatigue durability collation by evaluation of a stress change to occur in a collation part was prescribed. However, in the arched bridges, relations of true stress and design stress are not always clear. Therefore difference in analysis model influences calculation stress greatly. Especially, the panel point parts shows a complicated stress property, therefore an analysis model has to be able to evaluate it adequately. This report is proposal of modeling and analytical technique in a fatigue design by examination of appropriate modeling and analytical technique.