FPL Timber Bridge Deck Research

by Billy Bohannan, Engr.; Forest Products Lab., Forest Service, U.S. Dept. of Agr., Madison, WI,

Serial Information: Journal of the Structural Division, 1972, Vol. 98, Issue 3, Pg. 729-740

Document Type: Journal Paper


The Forest Products Laboratory (FPL) in collaboration with the Forest Service Division of Engineering, has a continuing research program to improve timber bridge design and performance. The program covers field evaluations of existing bridges, laboratory evaluations of new or revised design criteria, and experimental field bridge studies. Much of the engineering research was concentrated on the design of vertically glued laminated wood panels for bridge decks. The results of both laboratory evaluations and experimental field bridge studies have indicated a glued system to be structurally superior to the conventionally used nailed-laminated decking. The use of glued panels should result in an overall economic saving in bridge costs and will greatly extend the service life of timber bridges.

Subject Headings: Bridge design | Bridge decks | Laboratory tests | Bridge tests | Wood | Wood bridges | Forests | Panels (structural)

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