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Effects of driving forces and bending fatigue on structural performance of a novel concrete-filled fibre-reinforced-polymer tube flexural pile

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dc.contributor.author Helmi, K
dc.contributor.author Fam, A
dc.contributor.author Mufti, AA
dc.contributor.author Hall, JM
dc.date.accessioned 2008-01-03T16:01:38Z
dc.date.available 2008-01-03T16:01:38Z
dc.date.issued 2006-06-30
dc.identifier.citation 0315-1468; CAN J CIVIL ENG, JUN 2006, vol. 33, no. 6, p.683 to 691. en
dc.identifier.uri http://hdl.handle.net/1993/2974
dc.description.abstract The effects of driving forces and high-cycle fatigue on the flexural performance of a novel pile consisting of a concrete-filled glass-fibre-reinforced polymer (GFRP) tube (CFFT) are investigated. A 367 mm diameter CFFT pile was driven and then extracted from the ground. Two 6 m segments cut from the upper and lower ends of the pile were tested to failure under monotonic bending and compared with a similar undriven CFFT pile. In addition, a 625 mm diameter CFFT and a conventional 508 mm square prestressed concrete pile of similar moment capacities, both 13.1 m long, were driven, tested in the field under lateral loads, and compared. It was found that driving forces have a marginal effect (about 5% reduction) on the flexural strength of CFFT piles. Also, CFFT piles have larger deflections than prestressed piles do. Because the GFRP tube is the sole reinforcement for the CFFT system, a comprehensive fatigue test program was conducted: coupons cut from the tube were tested under cyclic loading at various stress levels (20%-60% of ultimate) to establish the S-N curve and stiffness-degradation characteristics of the tube. A full-scale 367 mm diameter and 6 m long CFFT pile was tested under reversed cyclic bending at 60% of ultimate moment to validate the coupon test results. It is recommended that the service moment be limited to 20%-30% of ultimate moment to achieve at least 1 million cycles. en
dc.format.extent 1085117 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
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dc.rights info:eu-repo/semantics/openAccess
dc.subject composite pile en
dc.subject CFFT en
dc.subject driving en
dc.subject bending en
dc.subject fatigue en
dc.subject cyclic en
dc.subject FRP en
dc.subject tension en
dc.subject BEHAVIOR en
dc.title Effects of driving forces and bending fatigue on structural performance of a novel concrete-filled fibre-reinforced-polymer tube flexural pile en
dc.type info:eu-repo/semantics/contributionToPeriodical
dc.type journal article en_US
dc.status Peer reviewed en
dc.identifier.doi http://dx.doi.org/10.1139/l05-075


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