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Glued-Laminated Timber Panels for Bridge Deck Replacement

Glued-Laminated Timber Panels for Bridge Deck Replacement,Farrel J. Zwerneman,Raymond L. Huhnke,Steven Anderson

Glued-Laminated Timber Panels for Bridge Deck Replacement  
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Research was conducted to evaluate the viability of using Oklahoma timber species in glued-laminat ed panel designs for bridge deck replacement. Panels were fabricated from southern pine, red oak, and cottonwood. Laboratory tests were conducted to determine the mechanical properties of panels fabricated from the three different species and allowable spans were computed based on test results. Panels were installed on seven in-service bridges ranging in width from 4.82 to 6.89 m (15.8 to 22.6 ft), and in length from 9.5 to 37.2 m (31 to 122 ft). Advantages of timber panels relative to other decking materials include reduction in out-of-servic e time, easy installation, reduced dead loads, increased resistance to road chemicals, and a wider tolerance to weather conditions during installation.
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