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A platform for research: civil engineering, architecture and urbanism
Nonlinear analysis of biaxially loaded rectangular concrete-filled stainless steel tubular slender beam-columns
HighlightsA numerical model for rectangular CFSST slender beam-columns is described.Different stain-hardening of stainless steel in tension and compression is considered.The model accounts for local buckling of stainless steel tubes under biaxial loads.Parametric study on CFSST slender columns under biaxial bending is performed.The model and design formula predicts well the behavior of CFSST slender columns.
AbstractRectangular concrete-filled stainless steel tubular (CFSST) beam-columns utilized as supporting members for building frames may experience axial compression and biaxial moments. A numerical simulation considering the local buckling effects for thin-walled rectangular CFSST slender beam-columns has not been performed. This paper reports a stability modeling on the structural characteristics of rectangular CFSST slender beam-columns accounting for different strain-hardening of stainless steel under tension and compression. The influences of local buckling are considered in the simulation utilizing the existing effective width formulations. The developed numerical model simulates the strength interaction and load-deflection behavior of CFSST slender beam-columns. Comparisons of computed results with test data provided by experimental investigations are performed to validate the proposed fiber model. The influences of different geometric and material property on ultimate strengths, ultimate pure moments, concrete contribution ratio, strength interaction and load-deflection responses of CFSST slender beam-columns are examined by utilizing fiber model. A design formula considering strain hardening of stainless steel is derived for calculating the ultimate pure moment of square CFSST beam-columns.
Nonlinear analysis of biaxially loaded rectangular concrete-filled stainless steel tubular slender beam-columns
HighlightsA numerical model for rectangular CFSST slender beam-columns is described.Different stain-hardening of stainless steel in tension and compression is considered.The model accounts for local buckling of stainless steel tubes under biaxial loads.Parametric study on CFSST slender columns under biaxial bending is performed.The model and design formula predicts well the behavior of CFSST slender columns.
AbstractRectangular concrete-filled stainless steel tubular (CFSST) beam-columns utilized as supporting members for building frames may experience axial compression and biaxial moments. A numerical simulation considering the local buckling effects for thin-walled rectangular CFSST slender beam-columns has not been performed. This paper reports a stability modeling on the structural characteristics of rectangular CFSST slender beam-columns accounting for different strain-hardening of stainless steel under tension and compression. The influences of local buckling are considered in the simulation utilizing the existing effective width formulations. The developed numerical model simulates the strength interaction and load-deflection behavior of CFSST slender beam-columns. Comparisons of computed results with test data provided by experimental investigations are performed to validate the proposed fiber model. The influences of different geometric and material property on ultimate strengths, ultimate pure moments, concrete contribution ratio, strength interaction and load-deflection responses of CFSST slender beam-columns are examined by utilizing fiber model. A design formula considering strain hardening of stainless steel is derived for calculating the ultimate pure moment of square CFSST beam-columns.
Nonlinear analysis of biaxially loaded rectangular concrete-filled stainless steel tubular slender beam-columns
Patel, Vipulkumar Ishvarbhai (author) / Liang, Qing Quan (author) / Hadi, Muhammad N.S. (author)
Engineering Structures ; 140 ; 120-133
2017-02-28
14 pages
Article (Journal)
Electronic Resource
English