EXPERIMENTAL STUDY ON A FATIGUE BEHAVIOR NEAR THE INTERMEDIATE SUPPORTS OF CONTINUOUS COMPOSITE GIRDERS WITH HEADED STUDS

Abstract

This experimental research aims to examine a fatigue behavior of concrete slabs and headed studs in a continuous steel-concrete composite girder under negative bending. In particular, the fatigue behavior near the intermediate supports is fully investigated by using test specimens. It follows from the present experimental study that the bond between studs and concrete and the bond between flange plate and concrete become weak after the fatigue loading, and that the tension stiffening effects of the concrete slabs are expected except the intermediate support where the negative bending moment becomes largest.