《外文翻译-预应力碳纤维布加固钢筋混凝土梁抗弯性能研究》-毕业论文.docVIP

PAGE 12 翻译材料 题目：预应力碳纤维布加固钢筋混凝土梁抗弯性能研究 出处：Web Mining and Web-based Application, 2009. WMWA 09. Second Pacific-Asia Conference . 目 录 第一节 1 Abstract…………………………………………………………………1 2 英文论文原文部分…………………………………………………………1 第二节 1 汉语翻译部分 ………………………………………………………………8 第一章 Research on Deflection of Strengthening Concrete Beam with Prestressed CFRP Sheets WANG Xiang yang, JI Shao bo, ZHAO Guang hui School of Transportation, Wuhan University of Technology Wuhan, China, 430063 HYPERLINK mailto:Wangxy2003@163.com Wangxy2003@163.com Abstract： CFRP sheets have been widely used in strengthening concrete structures as a new material and prestressed CFRP sheets can improve the carrying capacity of beams. This paper researched the affection about the deflection and rigidity of concrete structures after strengthening with prestressed CFRP sheets, and derived related theoretic formulas. It is shown that the prestressed CFRP sheets can not dramatically change the deflection of the structures because the prestressed CFRP sheets are generally thin with small moment of inertia for the structural sections Keywords: prestressed; strengthening; theoretic formulas; deflection; Introduction Carbon fiber reinforced plastic (CFRP) sheets which are characteristic of high strength, light weight and anticorrosion are widely adopted in strengthening, but the capacity of high strength in CFRP cant fully exert with general strengthening method. Prestressed CFRP sheets (as shown in Fig.1) can improve the mechanical behaviors of the members in usage and bear great significance in promoting the researches of this technology and for the engineering practices. Figure1 Carbon fiber reinforced plastic sheets Taking the currently widely used box girder bridges as a model, this paper derives the method of calculating the deflection of bridges strengthened with prestressed CFRP sheets and theoretically analyzes the mechanical behaviors of the structures after the strengthening. 2