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Computers and Concrete
  Volume 12, Number 4, October 2013, pages 519-536
DOI: http://dx.doi.org/10.12989/cac.2013.12.4.519
 


Analysis of RC walls with a mixed formulation frame finite element
Afsin Saritas and Filip C. Filippou

 
Abstract
    This paper presents a mixed formulation frame element with the assumptions of the Timoshenko shear beam theory for displacement field and that accounts for interaction between shear and normal stress at material level. Nonlinear response of the element is obtained by integration of section response, which in turn is obtained by integration of material response. Satisfaction of transverse equilibrium equations at section includes the interaction between concrete and transverse reinforcing steel. A 3d plastic damage model is implemented to describe the hysteretic behavior of concrete. Comparisons with available experimental data on RC structural walls confirm the accuracy of proposed method.
 
Key Words
    shear behavior; finite element method; mixed formulation; frame finite element; shear walls
 
Address
Afsin Saritas: Department of Civil Engineering, Middle East Technical University, Ankara 06800, Turkey
Filip C. Filippou: Department of Civil and Environmental Engineering, University of California, Berkeley, CA 94720, USA
 

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