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Load Rating of Masonry Arch Bridges and Culverts
Author(s) and Affiliation(s):
Thomas E. Boothby, The Pennsylvania State University, University Park, PA Vikram K. Dalal, Ohio Department of Transportation, Columbus, OH
Principal Investigator:
Thomas E. Boothby
Ohio Department of Transportation
Research Start Date:
February 1, 1994
Expected Completion Date:
June 1, 1996
Research Objectives:
Although the masonry arch has been used as a structural element in road bridges for centuries, today's heavier trucks and busier roads may for the last time be testing the limits of these structures. Moreover, many masonry arch bridges are listed in or eligible for listing in the National Register of Historic Places, which triggers Federal mandates for their preservation and protection. The objective of the present research is to develop an experimentally verified method for determining accurate load ratings for masonry arch bridges and culverts.
Expected Products or Deliverables:
The load rating procedure will rely on frame analysis of a unit width of the structure, with some additional checks for transverse effects. The procedure will be based on work done in the United Kingdom, which has been incorporated into a Standard and an Advice Note. The uncertainty of masonry structures, and the use of a limit states procedure, is reflected in an overload factor of greater than 3 applied to masonry arch bridges.

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