Journal
JOURNAL OF COMPOSITES FOR CONSTRUCTION
Volume 15, Issue 3, Pages 441-450Publisher
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)CC.1943-5614.0000162
Keywords
Fiber-reinforced plastic; FRP bridge deck; Steel girder; Shear connection; Strength evaluation; Fatigue
Funding
- NSF
- WVU Research Corporation
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This paper reports on research investigating a nongrouted sleeve-type connection used to attach fiber-reinforced polymer (FRP) decks to steel girders. The connection system was investigated for stiffness, strength, fatigue resistance, and degree of composite action. Static and fatigue tests were conducted first at the component level on push-out specimens to obtain P - Delta (load-displacement) and S - N (stress range-fatigue life) relationships, from which design formulas were developed. Then tests were conducted at the system level on a 1:3 scaled-bridge model by using this sleeve-type connection, and the results showed this shear connection can satisfy requirements from AASHTO specifications for fatigue, strength, and function. Further, three-point bending tests were conducted on a T-section model cut from the scaled bridge, and approximately 25% composite action was achieved for two different connection spacings. The structural efficiency of this shear connection is shown, and this connection design is applied in practice. DOI: 10.1061/(ASCE)CC.1943-5614.0000162. (C) 2011 American Society of Civil Engineers.
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