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A platform for research: civil engineering, architecture and urbanism
Long-term deflection and cracking behavior of concrete beams prestressed with carbon fiber-reinforced polymer tendons
Fiber-reinforced polymer (FRP) has certain advantages over steel, such as high tensile strength, light weight, and noncorrosive. This paper presents the experimental results on the long-term deflection and cracking behavior of the concrete beams prestressed with carbon fiber-reinforced polymer (CFRP) tendons with a comparison to those with steel tendon. From the comparisons of these beams it is concluded that the long-term deflection of beams prestressed by CFRP tendons was comparable to that of identical beams prestresssed by steel tendons. When the beams remained uncracked under the sustained service load, the long-term deflections of beams with CFRP were similar to those with steel tendons. When the sustained service load was greater than the cracking load, the instantaneos and long-term deflections of the beam with CFRP tendon was comparable to that with steel tendons. The crack widths at the soffit were slightly higher for the beam with CFRP tendon than that with steel tendon. The test results showed that with an increase of concrete stregth, the cracking moment of the beam increases, and fewer cracks formed under the same level of loading. Beams with the higher concrete strength have lower curvature and lower deflection.
Long-term deflection and cracking behavior of concrete beams prestressed with carbon fiber-reinforced polymer tendons
Fiber-reinforced polymer (FRP) has certain advantages over steel, such as high tensile strength, light weight, and noncorrosive. This paper presents the experimental results on the long-term deflection and cracking behavior of the concrete beams prestressed with carbon fiber-reinforced polymer (CFRP) tendons with a comparison to those with steel tendon. From the comparisons of these beams it is concluded that the long-term deflection of beams prestressed by CFRP tendons was comparable to that of identical beams prestresssed by steel tendons. When the beams remained uncracked under the sustained service load, the long-term deflections of beams with CFRP were similar to those with steel tendons. When the sustained service load was greater than the cracking load, the instantaneos and long-term deflections of the beam with CFRP tendon was comparable to that with steel tendons. The crack widths at the soffit were slightly higher for the beam with CFRP tendon than that with steel tendon. The test results showed that with an increase of concrete stregth, the cracking moment of the beam increases, and fewer cracks formed under the same level of loading. Beams with the higher concrete strength have lower curvature and lower deflection.
Long-term deflection and cracking behavior of concrete beams prestressed with carbon fiber-reinforced polymer tendons
Langfristige Durchbiegung und Rißbildung von mittels carbonfaserverstärkten Kunststoff-Spannkabeln vorgespannten Betonträgern
Zou, P.X.W. (author)
Journal of Composites for Construction ; 7 ; 187-193
2003
7 Seiten, 15 Bilder, 1 Tabelle, 11 Quellen
Article (Journal)
English
| British Library Online Contents | 2003
LONG-TERM BEHAVIOR OF CONCRETE BEAMS PRESTRESSED WITH CARBON FIBER TENDONS
| British Library Conference Proceedings | 1999