Test Results and Nonlinear Analysis of RC T-beams Strengthened by Bonded Steel Plates

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• 作者：Wei Ren ; Lesley H. Sneed ; Yiting Gai…
• 关键词：bridge ; cohesive behavior ; concrete damage plasticity ; cracking ; finite element method ; simulation
• 刊名：International Journal of Concrete Structures and Materials
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：9
• 期：2
• 页码：133-143
• 全文大小：3,581 KB
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• 作者单位：Wei Ren (1)
  Lesley H. Sneed (2)
  Yiting Gai (3)
  Xin Kang (2)
  
  1. Key Laboratory of Bridge Detection Reinforcement Technology Ministry of Communications, Chang鈥檃n University, Xi鈥檃n, 710075, Shaanxi, China
  2. Department of Civil, Architectural & Environmental Engineering, Missouri University of Science and Technology, Rolla, MO, 65409, USA
  3. CCCC First Highway Consultants CO., LTD, Xi鈥檃n, 710075, Shaanxi, China
  
• 刊物主题：Building Materials; Structural Materials; Structural Mechanics; Continuum Mechanics and Mechanics of Materials;
• 出版者：Springer Netherlands
• ISSN：2234-1315

文摘

This paper describes the test results and nonlinear analysis of reinforced concrete T-beams strengthened by bonded steel plates under increasing static loading conditions. The first part of this paper discusses the flexural tests on five T-beams, including the test model design (based on similarity principles), test programs, and test procedure. The second part discusses the nonlinear numerical analysis of the strengthened beams, in which a concrete damage plasticity model and a cohesive behavior were adopted. The numerical analysis results are compared with experimental data and show good agreement. The area of bonded steel plate and the anchor bolt spacing were found to have an impact on the cracking load, yield load, and ultimate load. An increase in the area of steel plate and a reduction of the anchor spacing could significantly improve the cracking and ultimate loads and decrease the damage of the beam.