01593566

Component

https://doi.org/10.3141/2592-06

This paper presents experimental results of double-lap joints of fiber-reinforced polymer (FRP) or steel splice plates bonded and bolted to flanges and web of pultruded hybrid I-beams with carbon FRP and glass FRP. Eight large-scale specimens with bonded-and-bolted splice joints and two control beams were tested under four-point static flexural loading. The test results indicated that the double-lap splice joints, which incorporated high corrosion-resistant steel bolts, epoxy adhesive, and FRP splice plates with a grit-blasted surface finish provided an effective solution for joining the hybrid FRP I-beams. The grit-blasted surface finish of the FRP splice plates and the epoxy adhesive contributed to improving the joint stiffness and strength. Before debonding occurred, the stiffness of the bonded-and-bolted splice joints was dependent mainly upon the strength of the epoxy adhesive and the bonding surface of the splice plates, while the ultimate load and failure mode of the joints was governed by the number and strength of bolts. The specimens with failures in the splice connections showed more ductile behavior than specimens with failures beyond the connections. This difference is attributed to the slippage of the splice connections.

01594663

16-5099

English

pp 45–55

2016

Transportation Research Record: Journal of the Transportation Research Board

9780309441360

Print

Figures (13) ; Photos; References (15) ; Tables (2)

Bolted joints; Carbon fibers; Fiber reinforced polymers; Flexural strength; Glass fibers; I beams; Splice plates

Pultruded composites

Bridges and other structures; Design; Highways

TRIS, TRB, ATRI

Jan 12 2016 6:13PM

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