Analytical stress-strain model of hybrid FRP-concrete-steel double skin tubular columns under axial compression

被引:4
作者
Bhat, Pronnoy [1 ]
Jamatia, Rimen [1 ]
机构
[1] Indian Inst Technol Jammu, Dept Civil Engn, Jammu and Kashmir 181221, India
关键词
Double skin tubular columns; Analytical model; FRP -confined concrete; Multi -axial compression; CONFINED CONCRETE; BEHAVIOR; COMPOSITE; STRENGTH; CYLINDERS; DUCTILITY;
D O I
10.1016/j.engstruct.2023.116145
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
An analytical model is proposed for confinement pressure exerted by outer fibre-reinforced polymer (FRP) and inner steel tube on sandwiched concrete in hybrid FRP-concrete-steel double skin tubular columns (DSTC) under axial compression assuming displacement compatibility between both FRP-concrete and steel-concrete interfaces. Next, using the proposed analytical model, an analysis-oriented model is presented to predict the uniaxial behavior of hybrid FRP-concrete-steel DSTC. Comparison with available test results from the literature shows that the proposed model provides reasonably good predictions compared to other existing models.
引用
收藏
页数:16
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