Bridge Seismic Retrofit Planning Program

This report documents a study that determined the effectiveness and cost of both previously used and proposed bridge superstructure seismic retrofit methods, including longitudinal joint restraining, transverse bearing restraining, bearing seat extension, replacement of vulnerable bearings with conventional bearings, and replacement with base isolation. In addition, a procedure was developed for systematically prioritizing the state's bridges for seismic retrofitting on the basis of their importance as lifelines and their vulnerability to collapse.



Publication Date: 
Saturday, November 30, 1991
Publication Number: 
WA-RD 217.1
Last modified: 
10/12/2016 - 15:41
Khossrow Babaei, Neil M. Hawkins.
Washington State Transportation Center (TRAC)
Number of Pages: 
Bridge bearings, Bridge superstructures, Costs, Earthquake resistant design, Longitudinal joints, Measures of effectiveness, Retrofitting, Strategic planning.