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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Author(s)
Carlos Eduardo Luna de Melo1 and Guilherme Sales Soares de Azevedo Melo2
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DOI:10.17265/1934-7359/2016.01.006
Affiliation(s)
1. Department of Technology, Faculty of Architecture and Urbanism, University of Brasília , Brasília 70910-900, Brazil
2. Department of Civil Engineering and Environmental, Faculty of Technology, University of Brasília , Brasília 70910-900, Brazil
ABSTRACT
A nonlinear numerical model was developed to analyze reinforced concrete
columns under combined axial load
and bending up to failure. Results of reinforced concrete columns under
eccentric compression tested to failure are presented and compared to results
from a numerical nonlinear model. The tests involved 10 columns with
cross-section of 250 mm × 120 mm, geometrical reinforcement ratio of 1.57% and concrete with
compression strength around 40 MPa, with 3,000 mm in length. The main variable was the load eccentricity in the direction of the
smaller dimension of cross-section. Experimental results of ultimate load and
of the evolution of transverse displacements and concrete strains are compared
with the numerical results. The estimated results
obtained by the numerical model are close to the experimental ones, being
suitable for use in verification of elements under combined axial load and
bending.
KEYWORDS
Columns, reinforced concrete, combined axial load and bending, numerical analysis.
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