Seismic behavior subjected to ground motion and fault displacement of half-through steel arch bridge

This paper presents the seismic behavior of the dynamic response analyses of a half-through steel arch bridge subjected to earthquake ground motion and fault displacement. Both the 1999 Taiwan Jiji Earthquake wave and fault displacement wave obtained from the time integral of the acceleration response wave were applied and the response behavior was investigated. The dynamic response analyses were carried out using earthquake ground motion in transversal and longitudinal directions together with fault displacement in vertical direction or transversal direction, in order to investigate the seismic behavior of the steel arch bridge model. The analytical models and time histories analysis are simulated by 3D model of ABAQUS software. According to the analytical results, the response behavior from both cases in transversal and longitudinal under acceleration shows a slightly different shape. It was also found that the plastic members were clustered near the intersections of arch ribs and stiffened girders.