BEHAVIOR OF BEARING PLATE TYPE BRIDGE BEARINGS UNDER TRAVELING LOAD

Although bridge bearings are important parts in bridges, they are subject to severe conditions for long periods of time. This might lead to damage, particularly if maintenance is poor. Macroscopic analysis of the inspection data on the Hanshin Expressway is provided. The dynamic behaviors of bridge bearings under traveling loads were measured both before and after new bridge bearings were installed. Model tests with full-size bridge bearings were conducted to improve the functions of the bridge bearings. The major findings are as follows: (a) Approximately 70% of the bearings on the Hanshin Expressway are plate bearings, and the number of damaged bridge bearings increases after 20 years of service. (b) Plate bearings that had been used for about 20 years no longer functioned well under traveling loads. The sliding function could not be fully restored, even by replacing the existing bridge bearings with identical new ones. (c) Rubber bearings (particularly pot bearings) are suitable for improving bridge bearing function.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/conf/1995/cp7/cp7v2-013.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

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Naganuma, T
  • Seki, K
  • Iwasaki, M
  • TOKUDA, K
• 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; Tables;
• Pagination: p. 130-136
• 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: Bearings; Before and after studies; Bridge bearings; Conferences; Dynamic loads; Live loads; Rubber
• Uncontrolled Terms: Dynamic response; Model tests; Replacing; Rubber bearings
• Old TRIS Terms: Plate bearings
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00711718
• Record Type: Publication
• ISBN: 0309061091
• Files: TRIS, TRB
• Created Date: Sep 6 1995 12:00AM