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    Author(s): Michael A. Ritter; Ronald K. Faller; Barry T. Rosson; Paula D. Hilbrich Lee; Sheila Rimal Duwadi
    Date: 1998
    Source: (General technical report FPL ; GTR-108):11 p. : plans ; 44 x 28 cm.
    Publication Series: General Technical Report (GTR)
    Station: Forest Products Laboratory
    PDF: Download Publication  (231 KB)


    As part of a continuing cooperative research between the Midwest Roadside Safety Facility (MwRSF); the USDA Forest Service, Forest Products Laboratory (FPL); and the Federal Highway Administration (FHWA), several crashworthy wood bridge railings and approach railing transitions have been adapted for use on concrete bridge decks. These railings meet testing and evaluation criteria outlined in National Cooperative Research Program (NCHRP) Report 350, Recommended Procedures for the Safety Performance Evaluation of Highway Features, and include a glued-laminated timber (glulam) rail, with and without a curb, at Test Level- 2 (TL-2), a glulam rail with curb at TL-4, and a glulam curb rail for low-volume roads at TL-1. In adapting the railings from a wood deck to a concrete deck, the critical consideration was railing attachment to the deck. A comparable connection was obtained by an analysis of maximum loads measured by field instrumentation during crash testing or by equating the ultimate capacity of connections used on the wood deck to those required for a concrete deck. For the convenience of the user, full drawing sets are provided in customary U.S. and S.I. units.

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    Ritter, Michael A.; Faller, Ronald K.; Rosson, Barry T.; Hilbrich Lee, Paula D.; Duwadi, Sheila Rimal. 1998. Plans for crash-tested wood bridge railings for concrete decks. (General technical report FPL ; GTR-108):11 p. : plans ; 44 x 28 cm.


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