Analysis of RC walls with a mixed formulation frame finite element


SARITAŞ A. , Filippou F. C.

COMPUTERS AND CONCRETE, vol.12, no.4, pp.519-536, 2013 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 12 Issue: 4
  • Publication Date: 2013
  • Doi Number: 10.12989/cac.2013.12.4.519
  • Title of Journal : COMPUTERS AND CONCRETE
  • Page Numbers: pp.519-536
  • Keywords: shear behavior, finite element method, mixed formulation, frame finite element, shear walls, CONCRETE STRUCTURAL WALLS, NONLINEAR-ANALYSIS, FIBER ELEMENT, SHEAR, MODEL, DAMAGE, BEAM, STRATEGIES, BEHAVIOR, FAILURE

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.