TRIPLE T: TRUCK THRIE BEAM TRANSITION
The Truck Thrie Beam Transition (Triple T), an 813-mm (32-in.) thrie beam transition, was developed under a recently completed pooled funds study. The study involved 23 states, the District of Columbia, and the Federal Highway Administration. The Triple T was crash-tested according to Performance Level 2 (PL2) requirements of the 1989 AASHTO guide. The transition performed acceptably after modifications were made to the end terminal connection. For testing, the 813-mm (32-in.) transition was attached to the end of the vertical-faced concrete parapet bridge railing. The Triple T is acceptable for use on other PL2 bridge railings if suitable attachment to the bridge railing (such as the modified end terminal connector) is used.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
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Supplemental Notes:
- This paper appears in Transportation Research Record No. 1500, Geometric Design, Roadside Safety Features, Roadside Hardware Monitoring, and Scenic Loop Tours. 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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Authors:
- Menges, Wanda L
- Buth, C Eugene
- McDevitt, Charles F
- Publication Date: 1995
Language
- English
Media Info
- Features: Figures; Photos; References; Tables;
- Pagination: p. 70-79
- Monograph Title: Geometric design, roadside safety features, roadside hardware monitoring, and scenic loop tours
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Serial:
- Transportation Research Record
- Issue Number: 1500
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Bridge railings; Crash tests; Crashes; Guardrail terminals; Guardrail transition sections; Guardrails; Networks; Performance; Testing; Thrie beams
- Uncontrolled Terms: Transition zones
- Subject Areas: Design; Highways; Research; Safety and Human Factors; I85: Safety Devices used in Transport Infrastructure;
Filing Info
- Accession Number: 00714993
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Dec 26 1995 12:00AM