A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Torsional capacity of concrete-filled steel tube columns circumferentially confined by CFRP
Abstract The concrete-filled steel tube (CFST) column circumferentially confined by carbon fibre reinforced polymer (CFRP), i.e. CFRP-CFST column, is a promising structural member in engineering practice. In this paper, the torsional capacity of CFRP-CFST columns was investigated by means of finite element (FE) simulation and theoretical derivation. Comprehensive FE models were established considering suitable material constitutive laws and interface relationships, which were then verified by experiment results. Besides, parametric analysis was conducted to reveal the geometrical and material parameters' effects on the torsional capacity of CFRP-CFST columns. The results show that the yield strength, the thickness, and the outer diameter of the steel tube are the most influential factors, and the number of CFRP layers also affects the torsional capacity considerably. Meanwhile, the comparison between the CFRP-CFST and CFST column indicates that the confinement effect provided by the CFRP can enhance the torsional capacity. Finally, equations for calculating the torsional capacity of the CFRP-CFST column were proposed and proved to be accurate through comparison with the test data.
Graphical abstract Display Omitted
Highlights Comprehensive finite element models were established and verified by test data. Parametric study on torsional behaviour of CFRP-CFST columns was conducted. Torsional capacity was compared between CFRP-CFST columns and CFST columns. Formula for predicting the torsional capacity was proposed and verified.
Torsional capacity of concrete-filled steel tube columns circumferentially confined by CFRP
Abstract The concrete-filled steel tube (CFST) column circumferentially confined by carbon fibre reinforced polymer (CFRP), i.e. CFRP-CFST column, is a promising structural member in engineering practice. In this paper, the torsional capacity of CFRP-CFST columns was investigated by means of finite element (FE) simulation and theoretical derivation. Comprehensive FE models were established considering suitable material constitutive laws and interface relationships, which were then verified by experiment results. Besides, parametric analysis was conducted to reveal the geometrical and material parameters' effects on the torsional capacity of CFRP-CFST columns. The results show that the yield strength, the thickness, and the outer diameter of the steel tube are the most influential factors, and the number of CFRP layers also affects the torsional capacity considerably. Meanwhile, the comparison between the CFRP-CFST and CFST column indicates that the confinement effect provided by the CFRP can enhance the torsional capacity. Finally, equations for calculating the torsional capacity of the CFRP-CFST column were proposed and proved to be accurate through comparison with the test data.
Graphical abstract Display Omitted
Highlights Comprehensive finite element models were established and verified by test data. Parametric study on torsional behaviour of CFRP-CFST columns was conducted. Torsional capacity was compared between CFRP-CFST columns and CFST columns. Formula for predicting the torsional capacity was proposed and verified.
Torsional capacity of concrete-filled steel tube columns circumferentially confined by CFRP
Wang, Yu-Hang (author) / Wang, Yu-Yan (author) / Hou, Chao (author) / Deng, Ran (author) / Lan, Yong-Sen (author) / Luo, Wei (author) / Li, Peng (author)
2020-08-27
Article (Journal)
Electronic Resource
English
Torsional Behavior of Concrete-Filled Circular Steel Tube Columns
| Online Contents | 2009
Torsional Behavior of Concrete-Filled Circular Steel Tube Columns
| British Library Online Contents | 2009