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Advances in Materials Research
  Volume 7, Number 1, March 2018 , pages 29-44
DOI: https://doi.org/10.12989/amr.2018.7.1.029
 

Analytical analysis of the interfacial shear stress in RC beams strengthened with prestressed exponentially-varying properties plate
Benferhat Rabia, Rabahi Abderezak, Tahar Hassaine Daouadji, Boussad Abbes, Adim Belkacem and Fazilay Abbes

 
Abstract
    In this paper, a closed-form rigorous solution for interfacial shear stress in simply supported beams strengthened with bonded prestressed E-FGM plates and subjected to an arbitrarily positioned single point load, or two symmetric point loads is developed using linear elastic theory. This improved solution is intended for application to beams made of all kinds of materials bonded with a thin plate, while all existing solutions have been developed focusing on the strengthening of reinforced concrete beams, which allowed the omission of certain terms. The theoretical predictions are compared with other existing solutions. Finally, numerical results from the present analysis are presented to study the effects of various parameters of the beams on the distributions of the interfacial shear stresses. The results of this study indicated that the E-FGM plate strengthening systems are effective in enhancing flexural behavior of the strengthened RC beams.
 
Key Words
    concrete beam; prestressed composite plate; interfacial stresses; strengthening; adherend shear deformation
 
Address
Benferhat Rabia, Rabahi Abderezak, Tahar Hassaine Daouadji, Adim Belkacem: Département de génie civil, Université Ibn Khaldoun Tiaret; BP 78 Zaaroura, Tiaret, Algérie

Benferhat Rabia, Rabahi Abderezak, Tahar Hassaine Daouadji: Laboratoire de Géomatique et Développement Durable, Université de Tiaret, Algérie

Boussad Abbes, Fazilay Abbes: Laboratoire GRESPI—Campus du Moulin de la Housse, Reims Cedex 2, France
Adim Belkacem: Département des sciences et technologies, Centre Universitaire Tissemsilt, Algérie
 

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