Effects of eccentric loading on performance of concrete columns reinforced with glass fiber-reinforced polymer bars.

Autor: Shakouri Mahmoudabadi N; Department of Civil Engineering, The University of Memphis, Memphis, TN, 38152, USA., Bahrami A; Department of Building Engineering, Energy Systems and Sustainability Science, Faculty of Engineering and Sustainable Development, University of Gävle, 801 76, Gävle, Sweden. alireza.bahrami@hig.se., Saghir S; National Highway Authority, Islamabad, Pakistan., Ahmad A; Department of Civil Engineering, The University of Memphis, Memphis, TN, 38152, USA., Iqbal M; Department of Mechanical Engineering, CECOS University of IT and Emerging Sciences, Peshawar, Pakistan., Elchalakani M; Department of Civil Engineering, The University of Western Australia, Perth, Australia., Özkılıç YO; Department of Civil Engineering, Faculty of Engineering, Necmettin Erbakan University, 42100, Konya, Turkey.; Department of Civil Engineering, Lebanese American University, Byblos, Lebanon.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2024 Jan 22; Vol. 14 (1), pp. 1890. Date of Electronic Publication: 2024 Jan 22.
DOI: 10.1038/s41598-023-47609-4
Abstrakt: Glass fiber-reinforced polymer (GFRP) reinforcements are superior to traditional steel bars in concrete structures, particularly in vertical elements like columns, and offer significant advantages over conventional steel bars when subjected to axial and eccentric loadings. However, there is limited experimental and numerical research on the behavior of GFRP-reinforced concrete (RC) columns under eccentric loading having different spacing of stirrups. In this study, six specimens were cast under three different values of eccentricities (25 mm, 50 mm, and 75 mm) with two groups of stirrups spacing (50 mm and 100 mm). The experimental results showed that by increasing the eccentricity value, there was a reduction in the load-carrying capacity of the specimens. The finite element ABAQUS software was used for the numerical investigation of this study. The results from the finite element analysis (FEA) were close to the experimental results and within the acceptable range. The maximum difference between the experimental and FEA results was 3.61% for the axial load and 12.06% for the deformation.
(© 2024. The Author(s).)
Databáze: MEDLINE
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