Behaviour of steel-reinforced concrete columns under combined torsion based on ABAQUS FEA

Wu, Linmei and Xiaoluo, Cao and Zhenming, Li (2019) Behaviour of steel-reinforced concrete columns under combined torsion based on ABAQUS FEA. Engineering Structures. ISSN 0141-0296

Abstract

A computational model for studying the mechanical performance of steel-concrete columns under combined
torsion is established via ABAQUS. The model is validated by experimental results. Through numerical simulations,
the influence of the axial load ratio, torsion-bending ratio, concrete strength, steel ratio, longitudinal
reinforcement ratio, stirrup ratio, and shear-span ratio on the torsional behaviour of steel-concrete columns is
comprehensively investigated. The initial torsion stiffness and ultimate torsion strength of the column increase with increasing concrete strength and decreasing shear-span ratio. The parameters in descending order of influence on the ultimate torsion strength are steel ratio, torsion-bending ratio, tirrup ratio, longitudinal reinforcement ratio, and axial load ratio. Furthermore, the seven parameters in descending order of influence on the ductility coefficient are the steel ratio, shear-span ratio, concrete strength, axial load ratio, stirrup ratio, torsion-bending ratio and longitudinal reinforcement ratio.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published online: 21 Nov 2019. Permanent restricted access to ArticleFirst version, in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 23 Jan 2020 02:01
Last Modified: 30 Jan 2020 01:14
Uncontrolled Keywords: steel-concrete composite column; combined torsion; numerical analysis ; torsion stiffness ; torsion strength ; ductility coefficient
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
Identification Number or DOI: doi.org/10.1016/j.engstruct.2019.109980
URI: http://eprints.usq.edu.au/id/eprint/37603

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