Abstract
After Hyogoken-Nanbu Earthquake in 1995, pounding between the adjacent girders is of major concern from the view point of base isolation. In this paper, an experimental study using the two-dimensional shaking table was performed focusing on the dynamic and impact behavior of the pounding between the adjacent girders. The girder falling was observed due to the pounding between the adjacent girders. The effects of the pounding on the falling girders were examined by the response acceleration of the girders and deformation of the piers. The effects of the shock absorber such as rubber and lead inserted to the bridge restrainer plates in order to decrease impact force were investigated.
