A New Approach for Numerical Analysis of the RC Shear Walls Based on Timoshenko Beam Theory Combined with Bar-Concrete Interaction

Document Type : Regular Paper


1 Assistant Professor, Department of Civil Engineering, Persian Gulf University, Shahid Mahini Street, Bushehr, Iran, P.O. Box: 75169-13817

2 M.Sc. Graduated Student, Department of Civil Engineering, Persian Gulf University, Shahid Mahini Street, Bushehr, Iran, P.O. Box: 75169-13817

3 Associate Professor, Department of Civil Engineering, Persian Gulf University, Shahid Mahini Street, Bushehr, Iran, P.O. Box: 75169-13817


In this paper, a new approach for nonlinear numerical modelling of the reinforced concrete shear walls with consideration of bar-concrete interaction and shear deformation is proposed. Bar and concrete stress-strain relations, the bar-concrete interaction, the shear stress-strain relation and, also, their cyclic behavior including the strength degradation and stiffness degradation are adopted as known specifications. In the modeling, shear wall is divided into two types of joint and reinforced concrete (RC) elements. In the RC element, the effect of shear deformation is considered based on Timoshenko beam theory. Separate degrees of freedom are used for the steel bars and concrete part. The effect of bar-concrete interaction has been considered in the formulation of the RC element. The reliability of the method has been assessed through the comparison of numerical and experimental results for a variety of tested specimens under cyclic and pushover loading. A good agreement between experimental and analytical results is obtained for both cases of strength and stiffness during the analysis.


Main Subjects

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  • Receive Date: 04 February 2017
  • Revise Date: 25 March 2017
  • Accept Date: 03 April 2017
  • First Publish Date: 03 April 2017