Influence of vertical earthquake motion and pre-earthquake stress on joint response of precast concrete segmental bridges

摘要

This research project studied the seismic response of precast concrete segmental bridges and had an emphasis on the behavior of superstructure segment joints constructed using the balanced-cantilever method. The primary research tool used in this investigation was detailed 2-D, nonlinear time-history analyses. The characteristics and results of only the 300-ft-span (91 m) model were presented due to space considerations.