TEST EVALUATION OF TUBULAR THRIE BEAM FOR UPGRADING CONCRETE BRIDGE RAILING (ABRIDGMENT)

A retrofit design is described here which is believed to be applicable to a large percentage of those concrete baluster installations that do not have curbs on walkways projecting beyond the face of the concrete railing. The design involves a new beam rail element, the Thrie beam fabricated by welding two Thrie (triple corrugated) beams. The beam is formed to and blocked out from the concrete baluster rail by 15.24-cm- diameter (6-in-diameter) collapsing rings spaced at 2.54 (8.33 ft); no attempt was made to space the rings to the concrete post. Further design features are detailed. Test results indicate that the tubular Thrie beam increases the strength of the bridge rail. Vehicle drainage was greatly reduced, and the single Thrie beam to Thrie beam provides a continuous effective guardrail to bridge rail transition.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1976/594/594-009.pdf
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=TEST+EVALUATION+OF+TUBULAR+THRIE+BEAM+FOR+UPGRADING+CONCRETE+BRIDGE+RAILING+(ABRIDGMENT)&author=C.+Kimball&author=E.+Wiles&author=J.+Michie&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 Safety Appurtenances. 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:
  • Kimball, C E
  • Wiles, E O
  • Michie, J D
• Publication Date: 1976

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: pp 32-35
• Monograph Title: Photogrammetry, water quality, safety appurtenances, and shoulder design
• Serial:
  • Transportation Research Record
  • Issue Number: 594
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Bridge railings; Concrete; Guardrail transition sections; Loss and damage; Retrofitting; Tubular structures; Vehicles
• Subject Areas: Bridges and other structures; Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00148947
• Record Type: Publication
• ISBN: 030902563X
• Files: TRIS, TRB
• Created Date: Apr 13 1977 12:00AM