SEISMIC RESPONSE OF A CURVED HIGHWAY BRIDGE MODEL

This paper reports research on a model relating to the seismic resistance of large multispan curved overcrossings. The feasibility of developing a model that satisfies the necessary similitude requirements of such a complex structure and that is also capable of being tested on the 20 by 20-ft (6.1 by 6.1-m) shaking table is outlined. The small-amplitude dynamic characteristics of the 1:30 scale model of a hypothetical prototype are examined, and for this elastic range the experimental results compared satisfactorily with those obtained analytically. The response of the microconcrete model to a progressively more intense simulated seismic excitation applied horizontally in the asymmetric direction is described. The severe damage at the expansion joints during strong excitation is outlined, and ways of reducing such damage are suggested. The influence of expansion joint design on the seismic behavior points to the need for joint restrainers, of adequate ductility, to tie adjacent girders together.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1976/579/579-003.pdf
• Summary URL:
  • https://scholar.google.com/scholar_lookup?title=SEISMIC+RESPONSE+OF+A+CURVED+HIGHWAY+BRIDGE+MODEL&author=D.+Williams&author=W.+GODDEN&publication_year=1976
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Dynamics and Field Testing of Bridges. 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.
• Authors:
  • Williams, D
  • GODDEN, W G
• Conference:
  • 54th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia
  • Date: 1975-1-13 to 1975-1-17
• Publication Date: 1976

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 16-26
• Monograph Title: Earthquake-lnduced Dynamic Response of Bridges and Bridge Measurements
• Serial:
  • Transportation Research Record
  • Issue Number: 579
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Curved bridges; Dynamics; Expansion joints; Highway bridges; Mathematical models; Microconcrete; Seismicity
• Uncontrolled Terms: Dynamic characteristics; Models; Seismic response
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00139847
• Record Type: Publication
• ISBN: 0309024935
• Files: TRIS, TRB
• Created Date: Oct 6 1976 12:00AM