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

Article

Wu, Linmei, Xiaoluo, Cao and Zhenming, Li. 2020. "Behaviour of steel-reinforced concrete columns under combined torsion based on ABAQUS FEA." Engineering Structures. 209. https://doi.org/10.1016/j.engstruct.2019.109980

Article Title	Behaviour of steel-reinforced concrete columns under combined torsion based on ABAQUS FEA
ERA Journal ID	4188
Article Category	Article
Authors	Wu, Linmei (Author), Xiaoluo, Cao (Author) and Zhenming, Li (Author)
Journal Title	Engineering Structures
Journal Citation	209
Article Number	109980
Number of Pages	10
Year	2020
Publisher	Elsevier
Place of Publication	United Kingdom
ISSN	0141-0296
	1873-7323
Digital Object Identifier (DOI)	https://doi.org/10.1016/j.engstruct.2019.109980
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.
Keywords	steel-concrete composite column; combined torsion; numerical analysis ; torsion stiffness ; torsion strength ; ductility coefficient
ANZSRC Field of Research 2020	400510. Structural engineering
Public Notes	Files associated with this item cannot be displayed due to copyright restrictions.
Byline Affiliations	Centre for Future Materials
	Suzhou University of Science and Technology, China
	Delft University of Technology, Netherlands
Institution of Origin	University of Southern Queensland

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