IMPROVEMENT OF FATIGUE STRENGTH OF STEEL GIRDERS WITH TAPERED PARTIAL-LENGTH WELDED COVER PLATES
The fatigue strength of beams with tapered cover plate ends, which were repaired with one of three methods, was investigated experimentally. Most of the test specimens were precracked before the cover plate ends were repaired. Three repair methods were investigated: a friction-type bolted splice plate connection; air-hammer peening; and a hybrid combination of the previous two, known as partial bolted splice. Although specimens repaired with the bolted splice plate connection achieved Category B design life after repair, the splice plates did not prevent subsequent crack growth. Also, splice plate thickness was found to have a large influence on crack growth rate. Air-hammer peening was found to be effective in increasing the fatigue life of noncracked cover plate ends and details with small initial cracks. The partial bolted splice repair method was found to significantly improve the fatigue strength of precracked details, although it was not effective in preventing subsequent crack growth.
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Supplemental Notes:
- Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Hassan, A F
- Bowman, M D
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Conference:
- Fourth International Bridge Engineering Conference
- Location: San Francisco, California
- Date: 1995-8-28 to 1995-8-30
- Publication Date: 1995
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 304-315
- Monograph Title: FOURTH INTERNATIONAL BRIDGE ENGINEERING CONFERENCE, SAN FRANCISCO, CALIFORNIA, AUGUST 28-30, 1995. CONFERENCE PROCEEDINGS, 2 VOLUMES
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Serial:
- Transportation Research Board Conference Proceedings
- Issue Number: 7
- Publisher: Transportation Research Board
- ISSN: 1073-1652
Subject/Index Terms
- TRT Terms: Bolting; Conferences; Cracking; Fatigue (Mechanics); Fatigue cracking; Fatigue strength; Girders; Peening; Repairing; Splice plates; Structural plates; Thickness; Weldments
- Uncontrolled Terms: Fatigue life; Repairs
- Old TRIS Terms: Cover plates
- Subject Areas: Bridges and other structures; Design; Highways; Maintenance and Preservation; I24: Design of Bridges and Retaining Walls; I61: Equipment and Maintenance Methods;
Filing Info
- Accession Number: 00711735
- Record Type: Publication
- ISBN: 0309061091
- Files: TRIS, TRB
- Created Date: Sep 6 1995 12:00AM