Seismic Retro tting Guideline s for Complex Steel Truss Highway Bridges

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Seismic Retrotting Guideline s for Complex Steel Truss Highway Bridges

Author: Tom Ho (Coordinating Author)1, Roupen Donikian1, Tim Ingham1, Chuck Seim2, and Austin Pan | Size: 12.1 MB | Format: PDF | Quality: Unspecified | Publisher: MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH University at Buffalo, State University of New York | Year: June 30, 2006 | pages: 190

This manual, entitled Seismic Retrofitting Guidelines for Complex Steel Truss Highway Bridges (referred to as Guidelines in this document), collects and summarizes the state-of-the-practice, up to 2005, for retrofitting steel truss bridges on the highway system within the United States. These Guidelines are based on and are supplementary to the Seismic Retrofitting Manual for Highway Structures Part 1: Bridges (referred to in these Guidelines as the Bridge Retrofitting Manual), developed by the Multidisciplinary Center for Earthquake Engineering Research (MCEER), to be published by the Federal Highway Administration (FHWA) in 2006. The AASHTO Standard Specifications for Highway Bridges generally apply to the design of new “ordinary” highway bridges with spans less than 500 ft and with a design life of 75 years. The AASHTO Standard Specifications for Highway Bridges also suggest that supplemental specifications may be required for the design of new highway bridges of “unusual types,” or for the design of “long-span” bridges with spans longer than 500 ft. These two bridge classifications usually have design lives of 100 years or more.

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