The ATC-49 report, Recommended LRFD Guidelines for the Seismic Design of Highway Bridges, is a 2-volume set prepared by a joint venture partnership between ATC and the Multidisciplinary Center for Earthquake Engineering Research (MCEER). (Published 2003, Part I, 164 pages and Part II, 294 pages).
ABSTRACT:The Recommended LRFD Guidelines for the Seismic Design of Highway Bridges is published in two volumes:æ Part I: Specifications, and Part II: Commentary and Appendices.æ The document set also includes a CD-ROM containing USGS Seismic Hazard Curves and Uniform Hazard Response Spectra for the United States.
The Recommended Guidelines are based on significant enhancements in the state of knowledge and state of practice resulting from research investigations and lessons learned from earthquakes over the last 15 years. The Guidelines consist of specifications, commentary, and appendices developed to be compatible with the existing load-and-resistance-factor design (LRFD) provisions for highway bridges published by the American Association of State Highway and Transportation Officials (AASHTO).æ The new, updated, provisions are nationally applicable and cover all seismic zones, as well as all bridge construction types and materials. They reflect the latest design philosophies and design approaches that will result in highway bridges with a high level of seismic performance.
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