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A platform for research: civil engineering, architecture and urbanism
Evaluation of Axial Load Carrying Capacity of CFST Columns for Geometrical Cross-Sections
CFST columns typically have thinner or smaller cross sections of steel and concrete than steel-only columns in terms of structural advantages and synergistic effects on composite construction. This paper focuses on an experimental and FEM analysis of the load carrying capacity of CFST columns under pure axial load. Variables considered for the study are length/diameter (L/D), diameter/thickness ratio (D/t) and shape of the cross-section (rectangle, square, and circular). The experimental values of the circular CFST column’s ultimate load (Pu) are compared using the formulas given in two codal provisions: Euro Code-4 (EC4:2004); and AISC (2005). The CFST column elements are also modelled and their strength is evaluated using SAP-2000. It is found that the load carrying capacity of the in filled columns increased with increasing D/t ratio and decreased with increase in L/D ratio. The circular sections outperformed the other two geometrical sections in terms of load carrying capacity for various D/t and L/D ratios. In terms of predicting column capacity, the codal provisions were often very accurate. The experimental and numerical analysis for predicting Pu values are closely related.
Evaluation of Axial Load Carrying Capacity of CFST Columns for Geometrical Cross-Sections
CFST columns typically have thinner or smaller cross sections of steel and concrete than steel-only columns in terms of structural advantages and synergistic effects on composite construction. This paper focuses on an experimental and FEM analysis of the load carrying capacity of CFST columns under pure axial load. Variables considered for the study are length/diameter (L/D), diameter/thickness ratio (D/t) and shape of the cross-section (rectangle, square, and circular). The experimental values of the circular CFST column’s ultimate load (Pu) are compared using the formulas given in two codal provisions: Euro Code-4 (EC4:2004); and AISC (2005). The CFST column elements are also modelled and their strength is evaluated using SAP-2000. It is found that the load carrying capacity of the in filled columns increased with increasing D/t ratio and decreased with increase in L/D ratio. The circular sections outperformed the other two geometrical sections in terms of load carrying capacity for various D/t and L/D ratios. In terms of predicting column capacity, the codal provisions were often very accurate. The experimental and numerical analysis for predicting Pu values are closely related.
Evaluation of Axial Load Carrying Capacity of CFST Columns for Geometrical Cross-Sections
Lecture Notes in Civil Engineering
Vilventhan, Aneetha (editor) / Singh, Shamsher Bahadur (editor) / Delhi, Venkata Santosh Kumar (editor) / Ravi, B. (author) / Haribabu, K. (author) / Chandrasekhar Rao, T. (author)
National conference on Advances in Construction Materials and Management ; 2022 ; Warangal, India
2023-07-31
10 pages
Article/Chapter (Book)
Electronic Resource
English
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