AVALIAÇÃO DO COMPORTAMENTO DO CONCRETO CONFINADO EM PILARES MISTOS DE AÇO E CONCRETO

Gustavo Almeida de Moura; Vinícius Gabriel Parolin de Souza; André Vitor  Benedito; Vinícius Moura de  Moura; Pablo Augusto Krahl; Carlos Humberto Martins

doi:10.4025/revtecnol.v33i1.72628

Gustavo Almeida de Moura Universidade Estadual de maringá
Vinícius Gabriel Parolin de Souza Universidade Estadual de Maringá
André Vitor Benedito Universidade Federal de São Carlos
Vinícius Moura de Moura Universidade Federal de São Carlos
Pablo Augusto Krahl Universidade Estadual de Maringá
Carlos Humberto Martins Universidade Estadual de Maringá

DOI: https://doi.org/10.4025/revtecnol.v33i1.72628

Keywords: concrete-filled steel columns, concrete confinement, buckle, numeric model

Abstract

Concrete-filled steel columns stand out in the construction industry due to their advantages, such as high load-bearing capacity and deformation. This study aimed to investigate the behavior of concrete confinement in composite columns under different parametric conditions, using numerical simulations via the ABAQUS software. It was observed that confined concrete increases the compression strength of the column; however, this is accompanied by a loss of ductility as the strength of the concrete increases. It was also observed that columns with slimmer proportions tend to exhibit global instability before complete confinement of the concrete core occurs. These findings underscore the importance of considering such aspects in the design and sizing of composite columns to ensure the safety and efficiency of confined concrete structures.

Downloads

Download data is not yet available.

References

CARVALHO, A. S. et al. Machine Learning-Based Design Approach for Concrete-Filled Stainless Steel Tubular Columns. Arabian Journal for Science and Engineering, v. 48, n. 10, p. 14105–14118, 2023.

FERREIRA, F. P. V.; MARTINS, C. H.; NARDIN, S. Sensitivity Analysis of Composite Cellular Beams to Constitutive Material Models and Concrete Fracture. International Journal of Structural Stability and Dynamics, v. 21, n. 01, 2020.

HAN, L. H.; YAO, G. H.; TAO, Z. Performance of concrete-filled thin-walled steel tubes under pure torsion. Thin-Walled Structures, v. 45, n. 1, 2007.

HU, H. S. et al. Axial compressive behavior of square concrete-filled steel tube columns with high-strength steel fiber-reinforced concrete. Engineering Structures, v. 285, 2023.

İPEK, S.; GÜNEYISI, E.; GÜNEYISI, E. M. Data-driven models for prediction of peak strength of R-CFST circular columns subjected to axial loading. Structures, v. 46, n. July, p. 1863–1880, 2022.

İPEK, S.; GÜNEYISI, E. M. Application of Eurocode 4 design provisions and development of new predictive models for eccentrically loaded CFST elliptical columns. Journal of Building Engineering, v. 48, n. December 2021, 2022.

LI, G. C. et al. Experimental and numerical behavior of eccentrically loaded square concrete-filled steel tubular long columns made of high-strength steel and concrete. Thin-Walled Structures, v. 159, 2021.

OLIVEIRA, W. L. A. DE; DE NARDIN, S.; EL DEBS, A. L. H. DE C. Dimensionamento de pilares preenchidos de seção circular submetidos à compressão simples, segundo a NBR 8800:2008 e Eurocode 4:2004: comparação com resultados experimentais. Rem: Revista Escola de Minas, v. 62, n. 1, 2009

ROSSI, A. et al. Numerical assessment of lateral distortional buckling in steel-concrete composite beams. Journal of Constructional Steel Research, v. 172, p. 106192, 2020.

EVALUATION OF CONFINED CONCRETE BEHAVIOR IN CONCRETE-FILLIED STEEL COLUMNS

Abstract

Downloads

References