MECHANICAL BEHAVIOR OF VERTICAL STIFFENED SHEAR PANEL DAMPERS IN AN INTEGRATED COLUMN BY MULTI STEEL PIPES INCLUDING BOLTED JOINTS

Abstract

 Since the Hyogoken-Nanbu earthquake, many studies have been carried out to improve seismic performance of infrastructures. As one of them, an new type bridge pier which 4 steel pipes is connected by shear panels are proposed and developed, Ltd. Dynamic behavior and seismic performance of this structure have been clarified by the past research, and it is applied in the lamp section of Ebie JCT of the Hanshin Expressway No. 3 Kobe Line. In this structure, from the viewpoint of improving the seismic performance of the shear panel, the seismic performance of a shear panel with a longitudinal stiffener has been analytically confirmed. Experimental study on seismic performance of shear panel with stiffener has not been studied. Therefore, in this research, experimental study was conducted with the aim of clarifying the detailed performance confirmation and the mechanical behavior with stiffener including the bolted joint.