The Analysis On Load-carrying Capacity Of Angle Steel With Local Deformation

Load-carring capacity and the stress state of steel structure is reduced by local deformation. Because the replacement and reinforcement of component is very difficult, so how to accurately evaluate the load-carring capacity of steel with local deformation, and the influence of structure load-carring capacity with local deformation is a very practical topic of engineering.Because of the random of size and distribution with steel truss structure's local deformation. In view of this, selecting bearing capacity of single equal-angle steel with local deformation to experimente and finite element simulate.The bearing capacity of single equal-angle steel with local deformation is analyzed through test study and finite element analysis. The experiment is carried out with three specification angle iron of∠75×5,∠75×10,∠125×10. Calculation and finite element analysis is carried out by ABAQUS with consideration of geometic nonlinear, based on the date of experiment. This paper presents a simple and practical formation with the result of experiment and finite element analysis. The results show that: the proposed formulas accord well with the experimental values.