Long-term performance research on reinforced concreted beams with pre-stressed CFRP

• Published in: Procedia engineering Vol. 4; pp. 341 - 346
• Main Authors: Shang, Shouping, Zhang, Baojing, Wu, Jianren
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 2010
• Subjects: CFRP; Creep; Pre-stress; Slip; Creep; CFRP; Slip; Pre-stress
• ISSN: 1877-7058; 1877-7058
• DOI: 10.1016/j.proeng.2010.08.039

With the continuous development of science and technology, the method of using the pre-stressed carbon fiber on the concrete structure, in particular on the bridge structure has become a research direction by the domestic and foreign scholars. In this paper, it has done the long-term test for the civil carbon fiber in the laboratory on the base of the research of reinforced concreted beams with pre-stressed CFRP plate, and has observed the slip of the carbon fiber fixed on the side of the tension anchor. The results showed that: when put 50% of the ultimate stress of the carbon fiber on the carbon fiber, under the action of long-term tension, the variation of carbon fiber and the slip of the carbon fiber fixed on the side of tension anchor can all achieve intended purpose of the experiment (the pre-stressed tensioning equipment is the patent invented by the Professor Shouping Shang in Hunan University),which provides the experimental data on the long-term performance research of the civil carbon fiber reinforced on the concrete structures.