Abstract

Info

Author(s):: SHEN Yan-li; GU Shao-kang; College of Civil Engineering, Hebei University of Engineering

Keywords:: hollow pier; shake table test; finite element simulation; stirrup rate

Abstract:: The seismic performance of reinforced concrete hollow rectangular bridge piers was studied by seismic simulation shaking table test. Two hollow rectangular bridge piers with different stirrup rates were designed with a hollow rectangular bridge pier as the prototype. The seismic simulation shaking table test was carried out about the piers, and El Centro wave, Taft wave and Lanzhou wave were selected as the dynamic excitation. The acceleration response of the pier top, the dynamic magnification coefficient and the displacement response at the pier top were analyzed. The finite element model of the pier was established by using the large general finite element software ABAQUS, and the acceleration and displacement vibration responses of the test were compared with the finite element calculation results. The results show that the two model specimens have good seismic performance. Under the action of different seismic waves, the acceleration and the displacement vibration response of the pier are different. The higher the ratio of the stirrup, the more dense the crack distribution is, the smaller the width of the crack is. The stirrup rate has no significant influence on the acceleration and the velocity response, and the finite element model established by using the ABAQUS is feasible.