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A platform for research: civil engineering, architecture and urbanism
Nonlinear analysis of square steel‐reinforced concrete‐filled steel tubular short columns considering local buckling
https://orcid.org/0000-0003-4936-5257
https://orcid.org/0000-0003-0333-2265
AbstractThis paper presents a fiber element analysis model that simulates the structural responses of square steel‐reinforced concrete‐filled steel tubular (SRCFST) short columns under concentric compression including local buckling effects. The method of effective widths is utilized to model the gradual postlocal buckling of the steel tube walls of a SRCFST column loaded axially to failure. A new confinement model is developed for the concrete based on test results, considering the confinement induced by the embedded steel section. This confinement model is incorporated into the fiber model, and its accuracy is verified by experimental results. The accuracy of various confinement models proposed for concrete‐filled steel tubular (CFST) square columns in predicting the performance of SRCFST columns is evaluated. A parametric study is performed to investigate the performance of SRCFST columns with various parameters. The applicability of the design formulas specified in current standards for CFST columns to the design of SRCFST columns is examined. A formula is proposed to predict the strength of SRCFST short columns. The developed inelastic simulation model, confinement model, and design formula are found to yield performance predictions of SRCFST columns with good accuracy.
Nonlinear analysis of square steel‐reinforced concrete‐filled steel tubular short columns considering local buckling
https://orcid.org/0000-0003-4936-5257
https://orcid.org/0000-0003-0333-2265
AbstractThis paper presents a fiber element analysis model that simulates the structural responses of square steel‐reinforced concrete‐filled steel tubular (SRCFST) short columns under concentric compression including local buckling effects. The method of effective widths is utilized to model the gradual postlocal buckling of the steel tube walls of a SRCFST column loaded axially to failure. A new confinement model is developed for the concrete based on test results, considering the confinement induced by the embedded steel section. This confinement model is incorporated into the fiber model, and its accuracy is verified by experimental results. The accuracy of various confinement models proposed for concrete‐filled steel tubular (CFST) square columns in predicting the performance of SRCFST columns is evaluated. A parametric study is performed to investigate the performance of SRCFST columns with various parameters. The applicability of the design formulas specified in current standards for CFST columns to the design of SRCFST columns is examined. A formula is proposed to predict the strength of SRCFST short columns. The developed inelastic simulation model, confinement model, and design formula are found to yield performance predictions of SRCFST columns with good accuracy.
Nonlinear analysis of square steel‐reinforced concrete‐filled steel tubular short columns considering local buckling
https://orcid.org/0000-0003-4936-5257
https://orcid.org/0000-0003-0333-2265
AbstractThis paper presents a fiber element analysis model that simulates the structural responses of square steel‐reinforced concrete‐filled steel tubular (SRCFST) short columns under concentric compression including local buckling effects. The method of effective widths is utilized to model the gradual postlocal buckling of the steel tube walls of a SRCFST column loaded axially to failure. A new confinement model is developed for the concrete based on test results, considering the confinement induced by the embedded steel section. This confinement model is incorporated into the fiber model, and its accuracy is verified by experimental results. The accuracy of various confinement models proposed for concrete‐filled steel tubular (CFST) square columns in predicting the performance of SRCFST columns is evaluated. A parametric study is performed to investigate the performance of SRCFST columns with various parameters. The applicability of the design formulas specified in current standards for CFST columns to the design of SRCFST columns is examined. A formula is proposed to predict the strength of SRCFST short columns. The developed inelastic simulation model, confinement model, and design formula are found to yield performance predictions of SRCFST columns with good accuracy.
Nonlinear analysis of square steel‐reinforced concrete‐filled steel tubular short columns considering local buckling
Structural Concrete
Ahmed, Mizan (author) / Shahin, Ramy I. (author) / Yehia, Saad A. (author) / Emara, Mohamed (author) / Patel, Vipulkumar Ishvarbhai (author) / Liang, Qing Quan (author)
Structural Concrete ; 25 ; 69-84
2024-02-01
Article (Journal)
Electronic Resource
English
Local buckling tests of concrete-filled steel tubular columns
| British Library Conference Proceedings | 1995
Research on concrete-filled square steel tubular columns
| British Library Conference Proceedings | 1997