In order to study the confinement behavior of hybrid FRP tube-concrete-steel tube composite bushing,a finite element(FE)method is introduced to simulate FRP confined concrete short columns using ABAQUS software,and a modified Hognestad formula is presented to describe the stress-strain relations of concrete under uniaxial compression.The comparison of simulation and test results shows that this FE method does well in predicting mechanic properties of FRP confined concrete short columns by defining material ...