American Journal of Civil Engineering and Architecture
ISSN (Print): 2328-398X ISSN (Online): 2328-3998 Website: http://www.sciepub.com/journal/ajcea Editor-in-chief: Mohammad Arif Kamal
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American Journal of Civil Engineering and Architecture. 2015, 3(1), 28-38
DOI: 10.12691/ajcea-3-1-5
Open AccessArticle

Numerical Modelling of RC Columns Subjected to Biaxial Horizontal Loading and Variable Axial Load

André Furtado1, Hugo Rodrigues2, and António Arêde1

1Faculty of Engineering of the University of Porto, Department of Civil Engineering - Structural Division, R. Dr. Roberto Frias - 4200-465 Porto - Portugal

2School of Technology and Management, Polytechnic Institute of Leiria, Campus 2 - Morro do Lena - Alto do Vieiro, Apartado 4163-2411-901 Leiria, Portugal

Pub. Date: March 18, 2015

Cite this paper:
André Furtado, Hugo Rodrigues and António Arêde. Numerical Modelling of RC Columns Subjected to Biaxial Horizontal Loading and Variable Axial Load. American Journal of Civil Engineering and Architecture. 2015; 3(1):28-38. doi: 10.12691/ajcea-3-1-5

Abstract

Annumerical study of RC columns subjected to variable axial load in conjunction with biaxial cyclic bending are presented in this article. The numerical models were built to simulate the response of all specimens using the computer program SeismoStruct and adopting three different modelling strategies, such as lumped plasticity and distributed plasticity (based in displacements and forces formulations) that were adopted in order to obtain the real behaviour of the RC columns. The efficiency of each modelling strategy is evaluated through the comparison between the experimental global hysteretic behaviour, stiffness degradation, columns capacity and energy dissipation and the numerical results.

Keywords:
numerical modelling rc columns biaxial behaviour variable axial load

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