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Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592


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Title: Plans for crash-tested wood bridge railings for concrete decks

Source: General Technical Report FPL-GTR-108):11 p. : plans ; 44 x 28 cm.

Author(s)Ritter, Michael A.; Faller, Ronald K.; Rosson, Barry T.; Hilbrich Lee, Paula D.; Duwadi, Sheila Rimal.

Publication Year: 1998  View PDF »

 View Zipped - AutoCAD R14 - U.S. Units »

 View Zipped - AutoCAD R14 - S.I. Units »

Category: General Technical Reports

Abstract: 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.

Keywords: Bridges, Design

File size: 231 kb(s)

This publication is also viewable on Treesearch:  view
RITS Product ID: 16524
Current FPL Scientist associated with this product
Ritter, Michael A.
Assistant Director

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