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Title: RESISTANCE OF WELDED DETAILS UNDER VARIABLE AMPLITUDE LONG-LIFE FATIGUE LOADING
Accession Number: 00636288
Record Type: Monograph
Availability: Find a library where document is available Abstract: This study was carried out with the objective of providing additional experimental data on the effects of infrequently exceeding the fatigue limit of welded steel highway bridge details. To accomplish this objective, eight full-size welded girders with Category E' web attachments and cover-plated flanges and Category C transverse stiffeners and diaphragm connection plates were subjected to long-life variable amplitude loading. It was found that fatigue cracking developed at the Category E' details when the constant amplitude fatigue limit was exceeded by more than 0.05% of the stress cycles. For the Category C details, fatigue cracks did not develop unless the peak stress range exceeded the constant amplitude fatigue limit by more than 33%. The results continued to support the extension of the exponential S-N relationship even when the effective stress range is below the constant amplitude fatigue limit.
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.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Fisher, J WNussbaumer, AKeating, P BYen, B TPagination: 38 p.
Publication Date: 1993
Serial: ISBN: 0309053528
Media Type: Digital/other
Features: Appendices
(2)
; Figures
(15)
; Photos
(29)
; References
(15)
; Tables
(11)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls
Files: TRIS, TRB, ATRI
Created Date: Sep 8 1993 12:00AM
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