This work was carried out on the buckling effects of cold-formed perforated steel columns with base auxetic polymer stiffeners. Buckling tests were carried out for three thicknesses of steel profiles (1.5–1.8 mm) with and without base stiffeners. Loading conditions were considered to be with displacement variation of 0.1 mm/s and respective axial loads and lateral displacements were noted. Results obtained states that the lateral displacement was found to be 2.2 for 1.8 mm CFS thickness and 93 kN of axial load with the use of auxetic stiffener with 14.8% of the variation in comparison without stiffener. The strain energy of absorption for auxetic stiffener is found to be high as 0.0523 at a lateral load of 80 kN for 1.8 mm CFS thickness. The maximum resistance to local, distortional, and Euler’s buckling loads was found to be high for 1.8 mm thick CFS with stiffener with 11.1%, 17.39%, and 10% in comparison without stiffener.

这项工作是针对具有基础拉胀聚合物加劲肋的冷成型穿孔钢柱的屈曲效应进行的。对有和没有基础加强筋的三种厚度的钢型材（1.5-1.8 毫米）进行了屈曲试验。载荷条件被认为是位移变化为 0.1 毫米/秒，并记录了各自的轴向载荷和横向位移。获得的结果表明，对于 1.8 毫米的 CFS 厚度和 93 kN 的轴向载荷，使用拉胀加劲肋的横向位移为 2.2，与不使用加劲肋的情况相比变化为 14.8%。发现拉胀加强筋的应变吸收能在 80 kN 横向载荷下对于 1.8 mm CFS 厚度高达 0.0523。发现对局部、扭曲和欧拉屈曲载荷的最大阻力为 1。