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Investigate the Effect of Parameters Compressive on Behavior of Concrete-Filled Tubular Columns under Fire

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Year: 2019
COI code: JR_JCEMA-3-3_002
Paper Language: English

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Authors Investigate the Effect of Parameters Compressive on Behavior of Concrete-Filled Tubular Columns under Fire

  Peyman Beiranvand - Department of Civil Engineering, Razi University, Kermanshah, Iran.
Fereydoon Omidinasab - Department of Civil Engineering, Lorestan University, Khorramabad, Iran.
Ahmad Moradpour - Department of Civil Engineering, Khorramabad Branch, Islamic Azad University, Iran

Abstract:

Concrete-filled steel tubular columns have been extensively used in structures, owing to that they utilize the most favorable properties of both constituent materials, ductility, large energy-absorption capacity, and good structural fire behavior. Concrete inside the steel tube enhances the stability of the steel tube, and the steel tube, in turn, provides effective lateral confinement to the concrete. Furthermore, the fire resistance of (CFT) columns is higher than that of hollow steel tubular columns, external protection being not needed in most cases. During a fire, the steel tube acts as a radiation shield to the concrete core and a steam layer in the steel- concrete boundary appears. This paper presents to investigate the effect of the parameters compressive on behavior of concrete-filled tubular (CFT) columns under fire by numerical simulations using ABAQUS software. Three different diameters to thickness ration of 54, 32 and 20 are considered in this study with two concrete s compressive strengths of 44 and 60 MPa. The measured compressive axial capacity is compared to their corresponding theoretical values predicted by four different international codes and standards. The results indicate that the effect of diameter to thickness ratio on the compressive behavior of the sections is greater than the effect of the other factors. Also, the axial capacity calculated by most of these codes reduces as the diameter to thickness ratio increases as verified by experimental results.

Keywords:

Concrete filled tubular, Axial compressive capacity, Fire, ABAQUS, Parameters compressive

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COI code: JR_JCEMA-3-3_002

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Beiranvand, Peyman; Fereydoon Omidinasab & Ahmad Moradpour, 2019, Investigate the Effect of Parameters Compressive on Behavior of Concrete-Filled Tubular Columns under Fire, Journal of Civil Engineering and Materials Apllication 3 (3), https://www.civilica.com/Paper-JR_JCEMA-JR_JCEMA-3-3_002.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Beiranvand, Peyman; Fereydoon Omidinasab & Ahmad Moradpour, 2019)
Second and more: (Beiranvand; Omidinasab & Moradpour, 2019)
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Type: state university
Paper No.: 7854
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