IMPROVED DESIGN SPECIFICATIONS FOR HORIZONTALLY CURVED STEEL GIRDER HIGHWAY BRIDGES

This report contains the findings of a study undertaken to develop revised guide specifications for horizontally curved highway bridges on the basis of current practice and technology. The proposed specifications resulting from this work have been provided to the American Association of State Highway and Transportation Officials (AASHTO). The contents of this report will be of immediate use to bridge designers interested in understanding the background of the specification development. This report provides a full description of the research performed to develop the improved specifications. The report is particularly noteworthy because it identifies major departures from the current specifications and explains the reasoning behind these departures. Thus, the report should prove to be a valuable resource document for design engineers interested in understanding the theoretical and historical basis of the specification provisions.