Behavior of Hexagonal Concrete-Filled Double-Skin Steel Short Columns under the Effect of Axial Compression

Concrete-filled double skin tubular (CFDST) columns involve a tube-‌in-‌tube arrangement, where the steel sections can be round, square or rectangular hollow sections, with the annulus between the hollow sections filled with concrete. To date there have been no significant applications of hexagonal...

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Main Authors: Hend Selima, Mostafa Fahmi, Yousry Shaheen
Format: Article
Language:Arabic
Published: Faculty of engineering, Tanta University 2023-06-01
Series:Journal of Engineering Research - Egypt
Subjects:
Online Access:https://erjeng.journals.ekb.eg/article_295119_d907380c19508c432985760db44c1fd4.pdf
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author Hend Selima
Mostafa Fahmi
Yousry Shaheen
author_facet Hend Selima
Mostafa Fahmi
Yousry Shaheen
author_sort Hend Selima
collection DOAJ
description Concrete-filled double skin tubular (CFDST) columns involve a tube-‌in-‌tube arrangement, where the steel sections can be round, square or rectangular hollow sections, with the annulus between the hollow sections filled with concrete. To date there have been no significant applications of hexagonal concrete-filled double skin tubular columns (HCFDST) with inner circular tubes worldwide, partly due to the lack of design provisions. This paper addresses the compressive performance of these columns. To obtain the structural behavior of HCFDST columns, a finite element analysis was conducted. To indicate the accuracy and the reliability of the model, the proposed FEM model was verified by the available experimental data for HCFDST. Columns were employed to conduct parametric studies, the effects of various parameters on the load-displacement response of HCFDST short columns are studied by using the validated FE model. A new formula to determine ultimate load for regular HCFDST short columns in compression has been proposed in this study.
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spelling doaj.art-c06e7a34d1994695bf10171160cf31382023-07-01T17:28:39ZaraFaculty of engineering, Tanta UniversityJournal of Engineering Research - Egypt2356-94412735-48732023-06-017Issue 2667510.21608/erjeng.2023.201459.1168295119Behavior of Hexagonal Concrete-Filled Double-Skin Steel Short Columns under the Effect of Axial CompressionHend Selima0Mostafa Fahmi1Yousry Shaheen2Kafr El SheikhProfessor of Structural Engineering, Tanta University, EgyptProfessor of Strength and Testing of Materials, Civil Engineering Department, Faculty of Engineering, Menoufia University, EgyptConcrete-filled double skin tubular (CFDST) columns involve a tube-‌in-‌tube arrangement, where the steel sections can be round, square or rectangular hollow sections, with the annulus between the hollow sections filled with concrete. To date there have been no significant applications of hexagonal concrete-filled double skin tubular columns (HCFDST) with inner circular tubes worldwide, partly due to the lack of design provisions. This paper addresses the compressive performance of these columns. To obtain the structural behavior of HCFDST columns, a finite element analysis was conducted. To indicate the accuracy and the reliability of the model, the proposed FEM model was verified by the available experimental data for HCFDST. Columns were employed to conduct parametric studies, the effects of various parameters on the load-displacement response of HCFDST short columns are studied by using the validated FE model. A new formula to determine ultimate load for regular HCFDST short columns in compression has been proposed in this study.https://erjeng.journals.ekb.eg/article_295119_d907380c19508c432985760db44c1fd4.pdf-concrete-filled steel tubesfinite element analysisultimate strengthshort columns and hcfdst
spellingShingle Hend Selima
Mostafa Fahmi
Yousry Shaheen
Behavior of Hexagonal Concrete-Filled Double-Skin Steel Short Columns under the Effect of Axial Compression
Journal of Engineering Research - Egypt
-concrete-filled steel tubes
finite element analysis
ultimate strength
short columns and hcfdst
title Behavior of Hexagonal Concrete-Filled Double-Skin Steel Short Columns under the Effect of Axial Compression
title_full Behavior of Hexagonal Concrete-Filled Double-Skin Steel Short Columns under the Effect of Axial Compression
title_fullStr Behavior of Hexagonal Concrete-Filled Double-Skin Steel Short Columns under the Effect of Axial Compression
title_full_unstemmed Behavior of Hexagonal Concrete-Filled Double-Skin Steel Short Columns under the Effect of Axial Compression
title_short Behavior of Hexagonal Concrete-Filled Double-Skin Steel Short Columns under the Effect of Axial Compression
title_sort behavior of hexagonal concrete filled double skin steel short columns under the effect of axial compression
topic -concrete-filled steel tubes
finite element analysis
ultimate strength
short columns and hcfdst
url https://erjeng.journals.ekb.eg/article_295119_d907380c19508c432985760db44c1fd4.pdf
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AT mostafafahmi behaviorofhexagonalconcretefilleddoubleskinsteelshortcolumnsundertheeffectofaxialcompression
AT yousryshaheen behaviorofhexagonalconcretefilleddoubleskinsteelshortcolumnsundertheeffectofaxialcompression