The West Seboeis Stream Bridge is a Fiber-Reinforced-Polymer (FRP)-glulam girder bridge with a glulam deck. Both the bridge and the deck utilize Maine-grown red pine. The bridge performance is being monitored, with particular attention to the FRP strains and the integrity of the FRP-wood bond line. The University of Maine has developed a proprietary Pultruded GFRP laminate design that can be bonded to a wood substrate using standard PRF adhesives, The bond integrity passes ASTM D 1101 cyclic delamination testing and meets compression shear strength requirements in AITC A190.1 (Section 4.4.2.1).
Specifications
Year Constructed: June 1997
Length: 44 ft.
Width: 16 ft.
Design Live Load: 172,000 lbs. (1.25 HS25)
Wood Species: Red Pine
FRP Tensile Strength: 827,400 kPa (120,000 psi)
FRP Tensile Modulus: 6,600,000 psi
FRP Material Suppliers: Johns Manville, Georgia Pacific Resins, Strongwell
Sponsored by: US Department of Agriculture Wood in TransportationInitiative, Maine Department of Environmental Protection Bureau ofPublic Lands
The West Seboeis Stream Bridge is a Fiber-Reinforced-Polymer (FRP)-glulam girder bridge with a glulam deck. Both the bridge and the deck utilize Maine-grown red pine. The bridge performance is being monitored, with particular attention to the FRP strains and the integrity of the FRP-wood bond line. The University of Maine has developed a proprietary Pultruded GFRP laminate design that can be bonded to a wood substrate using standard PRF adhesives, The bond integrity passes ASTM D 1101 cyclic delamination testing and meets compression shear strength requirements in AITC A190.1 (Section 4.4.2.1).
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