International Journal of Concrete Structures and Materials

Korea Concrete Institute (한국콘크리트학회)
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Test Results and Nonlinear Analysis of RC T-beams Strengthened by Bonded Steel Plates

  • Ren, Wei (Key Laboratory of Bridge Detection Reinforcement Technology Ministry of Communications, Chang'an University) ;
  • Sneed, Lesley H. (Department of Civil, Architectural & Environmental Engineering, Missouri University of Science and Technology) ;
  • Gai, Yiting (CCCC First Highway Consultants CO., LTD.) ;
  • Kang, Xin (Department of Civil, Architectural & Environmental Engineering, Missouri University of Science and Technology)
  • Received : 2013.12.22
  • Accepted : 2015.01.28
  • Published : 2015.06.30
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Abstract

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.

Keywords

Acknowledgement

Supported by : Ministry of Transport of the People's Republic of China

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