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A platform for research: civil engineering, architecture and urbanism
Behaviour of concrete-encased concrete-filled FRP tube (CCFT) columns under axial compression
https://orcid.org/0000-0003-2782-8652
HighlightsThe newly proposed CCFT columns have been tested under axial compression.Considerable amount of strength and ductility can be observed for CCFT columns.Parametric analyses have been carried out by using the developed analytical model.
AbstractA new composite column named concrete-encased concrete-filled fibre reinforced polymer tube (CCFT) column has been proposed in this study. This composite column consists of an inner concrete-filled fibre reinforced polymer (FRP) tube, outer concrete confined with polymer grid, and concrete cover. In this study, a total of 16 concrete stub columns were cast and tested under axial compression. Columns were divided into eight groups, which included one group of plain concrete columns, two groups of FRP confined concrete columns, and five groups of CCFT columns. For FRP confined concrete columns, one layer and two layers of carbon FRP (CFRP) sheet were wrapped, respectively. For CCFT columns, glass FRP (GFRP) tube was used to confine the inner concrete, and polymer grid was used to confine the outer concrete. The test results show that considerable increase in strength and ductility can be obtained for CCFT columns. An analytical model has been developed to predict the axial compressive behaviour of CCFT columns. The analytical results have been found to be in good agreement with the experimental results. Based on the analytical model, the influences of different parameters on the axial compressive behaviour of CCFT columns have been investigated through parametric analyses.
Behaviour of concrete-encased concrete-filled FRP tube (CCFT) columns under axial compression
https://orcid.org/0000-0003-2782-8652
HighlightsThe newly proposed CCFT columns have been tested under axial compression.Considerable amount of strength and ductility can be observed for CCFT columns.Parametric analyses have been carried out by using the developed analytical model.
AbstractA new composite column named concrete-encased concrete-filled fibre reinforced polymer tube (CCFT) column has been proposed in this study. This composite column consists of an inner concrete-filled fibre reinforced polymer (FRP) tube, outer concrete confined with polymer grid, and concrete cover. In this study, a total of 16 concrete stub columns were cast and tested under axial compression. Columns were divided into eight groups, which included one group of plain concrete columns, two groups of FRP confined concrete columns, and five groups of CCFT columns. For FRP confined concrete columns, one layer and two layers of carbon FRP (CFRP) sheet were wrapped, respectively. For CCFT columns, glass FRP (GFRP) tube was used to confine the inner concrete, and polymer grid was used to confine the outer concrete. The test results show that considerable increase in strength and ductility can be obtained for CCFT columns. An analytical model has been developed to predict the axial compressive behaviour of CCFT columns. The analytical results have been found to be in good agreement with the experimental results. Based on the analytical model, the influences of different parameters on the axial compressive behaviour of CCFT columns have been investigated through parametric analyses.
Behaviour of concrete-encased concrete-filled FRP tube (CCFT) columns under axial compression
https://orcid.org/0000-0003-2782-8652
HighlightsThe newly proposed CCFT columns have been tested under axial compression.Considerable amount of strength and ductility can be observed for CCFT columns.Parametric analyses have been carried out by using the developed analytical model.
AbstractA new composite column named concrete-encased concrete-filled fibre reinforced polymer tube (CCFT) column has been proposed in this study. This composite column consists of an inner concrete-filled fibre reinforced polymer (FRP) tube, outer concrete confined with polymer grid, and concrete cover. In this study, a total of 16 concrete stub columns were cast and tested under axial compression. Columns were divided into eight groups, which included one group of plain concrete columns, two groups of FRP confined concrete columns, and five groups of CCFT columns. For FRP confined concrete columns, one layer and two layers of carbon FRP (CFRP) sheet were wrapped, respectively. For CCFT columns, glass FRP (GFRP) tube was used to confine the inner concrete, and polymer grid was used to confine the outer concrete. The test results show that considerable increase in strength and ductility can be obtained for CCFT columns. An analytical model has been developed to predict the axial compressive behaviour of CCFT columns. The analytical results have been found to be in good agreement with the experimental results. Based on the analytical model, the influences of different parameters on the axial compressive behaviour of CCFT columns have been investigated through parametric analyses.
Behaviour of concrete-encased concrete-filled FRP tube (CCFT) columns under axial compression
Wang, Weiqiang (author) / Sheikh, M. Neaz (author) / Hadi, Muhammad N.S. (author) / Gao, Danying (author) / Chen, Gang (author)
Engineering Structures ; 147 ; 256-268
2017-05-31
13 pages
Article (Journal)
Electronic Resource
English
Analytical behaviour of concrete-encased CFST box stub columns under axial compression
| TIBKAT | 2018