EXPERIMENTAL STUDY ON SEISMIC PERFORMANCE RECOVERY OF RC PIER BY REPLACEMENT OF PLASTIC HINGE PART USING EMBEDDED JOINT STRUCTURE

Abstract

 In Japan, which is one of the world’s largest earthquake nations, repair work to restore the seismic performance of bridge piers damaged by the occurrence of a large earthquake and seismic reinforcement work to improve seismic performance along with the revision of the technical standards for seismic design have been carried out. Considering the uncertain phenomenon of earthquakes, it is desirable to develop a metabolic seismic pier structure with metabolic functions that can adapt to future technical standards. In this study, it was verified that seismic performance could be recovered by using precast reinforced concrete for the plastic hinge replacement from the viewpoint of early recovery and labor saving, and by using the embedded joint structure in the horizontal joint.