FATIGUE OF CURVED STEEL BRIDGE ELEMENTS-ANALYSIS AND DESIGN OF PLATE GIRDER AND BOX GIRDER TEST ASSEMBLIES

Research on the fatigue behavior of horizontally curved, steel bridge elements was conducted at Lehigh University under the sponsorship of the Federal Highway Administration (FHWA) of the U.S. Department of Transportation. This multi-phase investigation involves the performance of five Tasks: 1) analysis and design of large scale plate girder and box girder test assemblies, 2) special studies of selected topics, 3) fatigue tests of the curved plate girder and box girder test assemblies, 4) ultimate load tests of the test assemblies, and 5) development of design recommendations suitable for inclusion in the AASHTO design specifications. The first Task, analysis and design of horizontally curved plate girder and box girder test assemblies, is contained herein. The research effort centered on fatigue crack propagation at welded details. Examination of design drawings of existing, curved, highway bridges indicated a variety of welded details in current use (see Tables 3 and 9). In view of the number of details to be tested and the desired test replication, five plate girder test assemblies and three box girder test assemblies were designed to provide stress and deflection conditions typical of actual bridges at the details to be tested. The test assemblies were analyzed using existing, available computer programs. Test assembly design was in accordance with the AASHTO design specifications as modified by the CURT tentative design recommendations. An account of the test assembly design process and the final designs of the test assemblies are included herein. Later reports will document the execution of Tasks 2 through 5. (FHWA)

  • Corporate Authors:

    Lehigh University

    Fritz Engineering Laboratory
    Bethlehem, PA  USA  18015

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Authors:
    • Daniels, J H
    • Zettlemoyer, N
    • Abraham, D
    • Batcheler, R P
  • Publication Date: 1979-8

Media Info

  • Pagination: 109 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00325379
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWA-RD-79-131 Intrm Rpt., FCP 35F2-052
  • Contract Numbers: DOT-FH-11-8198
  • Files: NTIS, TRIS, USDOT
  • Created Date: Apr 15 1981 12:00AM