EXPERIMENTAL STUDY ON SEISMIC PERFORMANCE OF CIRCULAR STEEL BRIDGE PIERS WHICH HAVE DIFFERENT DIAMETER-TO-THICKNESS RATIO AND CONCRETE FILLED REPAIR

Abstract

In this study, the repairing method of filling concrete for circular steel bridge piers which have different diameter-to-thickness ratio is to be verified. First, static cyclic loading tests until reaching their predetermined damage were conducted. After filling the concrete inside the specimens, the same static cyclic loading tests were carried out to clarify the seismic performance of repaired piers. Then, the seismic performance has been evaluated by the load-deflection relationship and the damage shape during cyclic loading.