Field performance of timber bridges. 13, Mohawk Canal stress-laminated bridge

P. D. Hilbrich Lee; X. Lauderdale

Field performance of timber bridges. 13, Mohawk Canal stress-laminated bridge

Author(s): P. D. Hilbrich Lee; X. Lauderdale
Source: (Research paper FPL ; RP-563):17 p. : ill., maps ; 28 cm.
Publication Series: Research Paper (RP)
Station: Forest Products Laboratory
PDF: Download Publication (799 KB)

Description

The Mohawk Canal bridge was constructed in August 1994, just outside Roll, Arizona. It is a simple-span, double-lane, stress-laminated deck superstructure, approximately 6.4 m (21 ft) long and 10.4 m (34 ft) wide and constructed with Combination 16F-V3 Douglas Fir glued-laminated timber beam laminations. The performance of the bridge was monitored continuously for 2 years, beginning shortly after installation. Performance monitoring involved gathering and evaluating data relative to the moisture content of the wood deck, the force level of the steel stressing bars, the vertical creep of the deck, and the behavior of the bridge under static load conditions. Furthermore, comprehensive visual inspections were conducted to assess the overall condition of the structure. Based on field evaluations, the bridge is performing properly with no structural deficiencies.

Publication Notes

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Citation

Hilbrich Lee, P. D.; Lauderdale, X. Field performance of timber bridges. 13, Mohawk Canal stress-laminated bridge. (Research paper FPL ; RP-563):17 p. : ill., maps ; 28 cm.

Keywords

Bridges, Structural timbers, Laminated wood, Stress analysis, Performance, Construction technology, Arizona, Stress lamination