Axial Capacity of Steel Angles with Local Deformation

作者：Jian Xie; Xiao Dan Han; An Xiang Ge

来源：Applied Mechanics and Materials, 2013, 351-352: 753-759.

DOI：10.4028/www.scientific.net/amm.351-352.753

<jats:p>Axial compressive and tensile tests on twenty single equal-leg steel angles with different local deformations were presented. The results show the influence of local deformation on the axial capacity of steel angles. The angles with local deformations under axial compression fail mostly due to flexural-torsional buckling whereas angles without local deformation fail mostly because of local flexural buckling. The axial compressive capacity of angles is significantly reduced in the presence of local inner concave or outer convex deformations. Based on the test results, a finite element analysis was further conducted using ABAQUS 6.12. Analytical results given by finite element analysis are close to the test results. The former is usually a little higher with a deviation rate around ±10%. Finally, two empirical equations are proposed to evaluate the residual ultimate capacity of steel angles with local deformations. The predictions of the equation agree well with the test results.</jats:p>

• 出版日期2013-8
• 单位天津大学