Rapid Repair Design of Temporary Support Systems for Bridges Damaged by Earthquakes in the State of Washington

The scope of this project was to provide designs for the rapid construction of shoring systems for damaged bridges due to earthquakes in the state of Washington. Using a broad range of loading criteria and established bridge geometries, several shoring systems were developed for 75% of the bridge types in Washington that are encountered in typical field scenarios. Using materials commonly available in the Puget Sound stockyards, steel and a wood/steel combination shoring systems were developed to shore standardized concrete prestressed girder bridges, concrete box girder bridges, or steel plate girder bridges. The temporary shoring can span a height of 15 to 40 feet. A design manual, with a flowchart and detailed construction drawings, was developed to provide Washington State Department of Transportation inspection engineers with tools to administer the full, appropriate completion of the shoring systems to allow the public and emergency crews to traverse damaged bridges.

Publication Date: 
Wednesday, October 3, 2001
Publication Number: 
WA-RD 542.1
Last modified: 
10/26/2018 - 09:38
Rafik Y. Itani, Kenneth J. Fridley, Luke A. Heath.
Washington State Transportation Center (TRAC)
Number of Pages: 
Construction, Design, Drawings, Earthquakes, Girder bridges, Handbooks, Shoring, Steel, Temporary structures, Wood.