Abstract
The design of steel column base plays a very important role in steel structure design. Through large-scale analysis software ANSYS, this paper analyzes the steel column base by finite element numerical simulation analysis,and discuss the fracture behavior of steel pipe column and fillet weld in different thickness, axial compression ratio and different sectional area. The results showed that, the section of most likely break focus on the ends and in the middle of the steel pipe column and fillet weld,and with the increase of thickness, cracking capability of the steel pipe column and fillet weld first increased and then decreased, and axial compression ratio of the specimen has little effect for cracking capability,and with the increase of sectional area, the less prone to fracture of the steel pipe column and fillet weld.
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