FATIGUE ASSESSMENT OF CABLE SYSTEMS OF LONG-SPAN CABLE-STAYED BRIDGES
Cable systems of a cable-stayed bridge consist of cable and cable anchorage. Cable tension caused by prestress, dead load, and live load acts directly on the cable anchorage. In addition to direct tension, bending deformation caused by live load, temperature changes, and wind load act on the anchored stay cables. Furthermore, wind-induced oscillations may be considered. Because the cable tension and bending deformation occur repeatedly, it is necessary to verify fatigue behavior. The structural details of cable anchorages are complex, making it difficult to evaluate their fatigue resistance. Therefore, fatigue tests were conducted on full-scale specimens that include proposed anchorages and cables to examine their performance. The obtained results show that fatigue cracks initiated at the welded toe of the bearing plate to anchor web plates were caused by plate bending; therefore, some refinements of structural details are necessary. The bending fatigue strength of semi-parallel wire cables socketed by two types of anchorage were both proved to be sufficient for use as stay cables for an 870-m span cable-stayed bridge.
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- 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:
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Washington, DC United States 20001 -
Authors:
- Tada, K
- FUJII, Y
- Ohashi, Hiroshi
- MIKI, C
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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; Photos; Tables;
- Pagination: p. 327-337
- 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: Anchorages; Bending; Cable stayed bridges; Cable systems; Cables; Conferences; Cracking; Fatigue tests; Flexural strength; Long span bridges; Prototype tests; Structural plates; Welded plates
- Old TRIS Terms: Plate bending
- Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;
Filing Info
- Accession Number: 00711737
- Record Type: Publication
- ISBN: 0309061091
- Files: TRIS, TRB
- Created Date: Sep 6 1995 12:00AM