IMPLICATIONS OF TEST RESULTS FROM FULL-SCALE FATIGUE TESTS OF STAY CABLES COMPOSED OF SEVEN-WIRE PRESTRESSING STRAND

Since 1990 14 full-scale axial and combined axial/flexural fatigue tests of parallel-strand cable specimens representing three recently constructed U.S. cable-stayed bridges have been conducted. Stay cable specimens ranged in size from 17 to 85 strands 15.2 mm (0.6 in.) in diameter with lengths between 4570 and 14,600 mm (15 and 48 ft) and nominal capacities between 4430 and 22,157 kN (996 and 4,981 kips). The specimens represented the variety of parallel-strand cable anchorage designs in use worldwide, namely, the wedge anchorage, combination wedge/conical socket anchorage, and conical anchorage; they also incorporated uncoated, epoxy-coated, and grit-impregnated epoxy-coated seven-wire strand. The primary goal of each test series was the validation of the as-designed cable system's fatigue performance for each bridge. However, test results indicate that these specification-required tests effectively identified endurance- and durability-impairing features of certain cable components, prompting the system's refinement and validation during test series. The intent of the review is to synthesize test results for a highly diverse sample of stay cable designs, installation procedures, and test criteria, emphasizing fatigue performance enhancements resulting from specific cable configuration refinements. Measured fatigue test data are compared with Post-Tensioning Institute cable testing criteria.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/conf/1995/cp7/cp7v1-030.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309061091
• 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
• Corporate Authors:

  Transportation Research Board

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• Authors:
  • Tabatabai, Habib
  • Ciolko, A T
  • Dickson, T J
• 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. 266-277
• Monograph Title: FOURTH INTERNATIONAL BRIDGE ENGINEERING CONFERENCE, SAN FRANCISCO, CALIFORNIA, AUGUST 28-30, 1995. CONFERENCE PROCEEDINGS, 2 VOLUMES
• Serial:
  • Transportation Research Board Conference Proceedings
  • Issue Number: 7
  • Publisher: Transportation Research Board
  • ISSN: 1073-1652

Subject/Index Terms

• TRT Terms: Anchorages; Building; Cable stayed bridges; Cables; Conferences; Design; Epoxy coatings; Facilities; Fatigue tests; Installation; Long span bridges; Prestressing
• Uncontrolled Terms: Prestressing strands
• Old TRIS Terms: Test results
• Subject Areas: Bridges and other structures; Construction; Design; Highways; Maintenance and Preservation; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00711696
• Record Type: Publication
• ISBN: 0309061091
• Files: TRIS, TRB
• Created Date: Sep 5 1995 12:00AM