Effect of Stirrups on Behavior of Normal and High Strength Concrete Columns

J. Němeček, P. Padevět, Z. Bittnar

Abstract


This paper deals with an experimental investigation and numerical simulation of reinforced concrete columns. The behavior of normal and high strength columns is studied, with special attention paid to the confinement effects of transversal reinforcement in columns with a square cross section. The character of a failure, and the strengths, ductility and post-peak behavior of columns are observed in experiments and also in numerical solution. A three-dimensional computational model based on the microplane model for concrete was constructed and compared with experimental data. The results of the numerical model showed good agreement in many aspects, and proved the capabilities of the used material model. 

Keywords


concrete; reinforced concrete columns; stirrups; normal strength concrete; high strength concrete; experiments; simulation; microplane model

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ISSN 1210-2709 (Print)
ISSN 1805-2363 (Online)
Published by the Czech Technical University in Prague