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Finite Element Analysis on the Mechanical Performance of the Middle Long CFST Column with an Inner I-shaped CFRP Profile under Axial Loading has been done in this tutorial. The steel box is modeled as a shell part. The inner concrete is modeled as a three-dimensional solid part. The CFRP I-shape is modeled as a shell part. You can see figures of the assembled parts below
The concrete-filled steel tube structure (CFT) has the performance of high bearing capacity, convenient construction, good shape, and excellent characteristics of fire resistance. The section size of the CFT column applied in high-rise buildings was large, and the diameter thickness ratio of the tube wall and the confinement coefficient was small. Zhong pointed out that materials such as longitudinal and transverse reinforcement steel bars into CFT columns could improve the ductility of the structure. Based on the background above, the authors put forward a new kind of concrete-filled square steel tube (CFST) column with an I-shaped CFRP profile inside to improve the mechanical properties of the CFST column. The CFRP is used to bear the vertical load rather than confine the concrete. The I-shaped CFRP profile is put inside the CFST column to increase the bearing capacity and ductility can be, and the weight of the structure will be reduced. Li et al (2014) studied the behavior of CFST short column with an I-shaped CFRP profile inside under axial loading. In this paper, the model was established by ABAQUS to study the mechanical performance of an axial compressed middle long CFST column with an I-shaped CFRP profile inside
Both dynamic and static approaches can be used as the solver to obtain the results. The proper boundary conditions and meshes are assigned to all parts
After the simulation, all results such as stress, strain, tension and compression damage, force-displacement diagram, and others are available. You can see some figures for the results below
