A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Durability and Bond of AFRP Pretensioned Piles. Volume 1
The report provides experimental and finite element results from a 45 month investigation to assess the long term durability and bond of aramid fiber reinforced plastic (AFRP) and carbon fiber reinforced plastic (CFRP) pretensioned elements as piles driven by Florida's tidal waters. Three identical series of tests were conducted on each material. These were outdoor exposure, wet/dry cycles in salt water (to simulate tide change) and a combination of wet/dry cycle and thermal cycles to simulate the effect of temperature range. Full sized beams and smaller pullout specimens were used. A total of sixty six identical beams - 33 aramid and 33 carbon - designed to fail by rupture of the AFRP or CFRP rod were case in a single pour. The beams each 114 mm x 150 mm x 2.44 m were pretensioned using two AFRP or CFRP rods at an eccentricity of 50 mm. Sixty pullout specimens - 30 AFRP and 30 CFRP were also cast. The study indicates that AFRP pretensioned elements may be vulnerable to thermal cycling in a marine environment. Bond deterioration in exposed specimens resulting in a significant loss in strength. This was not observed in pullout specimens exposed to the same environment. In contrast, CFRP pretensioned elements performed satisfactorily in all three environments.
Durability and Bond of AFRP Pretensioned Piles. Volume 1
The report provides experimental and finite element results from a 45 month investigation to assess the long term durability and bond of aramid fiber reinforced plastic (AFRP) and carbon fiber reinforced plastic (CFRP) pretensioned elements as piles driven by Florida's tidal waters. Three identical series of tests were conducted on each material. These were outdoor exposure, wet/dry cycles in salt water (to simulate tide change) and a combination of wet/dry cycle and thermal cycles to simulate the effect of temperature range. Full sized beams and smaller pullout specimens were used. A total of sixty six identical beams - 33 aramid and 33 carbon - designed to fail by rupture of the AFRP or CFRP rod were case in a single pour. The beams each 114 mm x 150 mm x 2.44 m were pretensioned using two AFRP or CFRP rods at an eccentricity of 50 mm. Sixty pullout specimens - 30 AFRP and 30 CFRP were also cast. The study indicates that AFRP pretensioned elements may be vulnerable to thermal cycling in a marine environment. Bond deterioration in exposed specimens resulting in a significant loss in strength. This was not observed in pullout specimens exposed to the same environment. In contrast, CFRP pretensioned elements performed satisfactorily in all three environments.
Durability and Bond of AFRP Pretensioned Piles. Volume 1
R. Sen (author) / J. Rosas (author) / S. Sukumar (author) / D. Snyder (author)
1996
183 pages
Report
No indication
English
Durability and bond of AFRP pretensioned piles ; Vol. 1
UB Braunschweig | 1900
Durability and bond of AFRP pretensioned piles ; Vol. 2
UB Braunschweig | 1900
Durability of AFRP & CFRP Pretensioned Piles in a Marine Environment
| British Library Conference Proceedings | 1997
Durability and Bond of CFRP Pretensioned Piles. Volume 2
| NTIS | 1996