Field performance of stress-laminated highway bridges constructed with glued laminated timber

J.P. Wacker

doi:10.1061/40700(2004)34

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Field performance of stress-laminated highway bridges constructed with glued laminated timber

Informally Refereed

Authors:

J.P. Wacker

Year:

2004

Type:

Miscellaneous Publication

Station:

Forest Products Laboratory

DOI:

https://doi.org/10.1061/40700(2004)34

Source:

Proceedings 2004 Structures Congress : Building on the Past, Securing the Future, 2004 May 22-26, Nashville, TN. Washington, DC : American Society of Civil Engineers, 2004: pages 1-7.

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Abstract

This paper summarizes the field performance of three stress-laminated deck timber bridges located in Wisconsin, New York, and Arizona. The deck superstructures of these single-span highway bridges is comprised of full-span glued laminated timber (glulam) beam laminations manufactured with southern pine, hem fir/red maple combination, and/or Douglas fir lumber species. These bridge structures were evaluated as part of a National Timber Bridge Monitoring Program for 2-3 years following construction. Field data collection for these single-span bridges included moisture content, prestressing force, and static load tests. Based upon these collected field data and comprehensive visual inspections, the bridges have performed satisfactorily with no structural or serviceability deficiencies.

Keywords

Stress-laminated highway bridges, glued laminated timber, glulam, highway bridges, performance

Citation

Wacker, J.P. 2004. Field performance of stress-laminated highway bridges constructed with glued laminated timber. Proceedings 2004 Structures Congress : Building on the Past, Securing the Future, 2004 May 22-26, Nashville, TN. Washington, DC : American Society of Civil Engineers, 2004: pages 1-7.