The minor-axis flexural buckling behaviour and strengths of pin-ended press-braked stainless steel channel section columns have been investigated in the present paper through laboratory testing and numerical modelling. An experimental programme was firstly conducted, and included initial global and local geometric imperfection measurements and twelve pin-ended column tests about the minor principal axis. The key obtained test results, including the failure loads, the mid-height lateral deflections at the failure loads, the load–mid-height lateral deflection curves and the failure modes, were reported and discussed in detail. The experimental programme was followed by a numerical modelling programme; finite element models were developed to simulate the test responses and then adopted to perform parametric studies to generate further numerical data on press-braked stainless steel channel section columns over a wide range of cross-section dimensions and member effective lengths. The obtained experimental and numerical data were employed to assess the accuracy of the relevant design rules for press-braked stainless steel channel section columns failing by flexural buckling about the minor principal axis, as given in the European code, American specification, Australian/New Zealand standard and SCI design manual. The results of the assessment indicated that (i) the European code yields unsafe flexural buckling strength predictions for those relatively short and intermediate press-braked stainless steel channel section columns with member non-dimensional slendernesses less than around 1.0, (ii) the American specification leads to unsafe predictions of flexural buckling strength for press-braked stainless steel channel section columns over the whole considered range of member non-dimensional slendernesses up to 3.0, and (iii) the Australian/New Zealand standard and the SCI design manual result in lower levels of design accuracy than the European code and American specification, but with significantly reduced number of unsafe flexural buckling strength predictions.

本文通过实验室测试和数值模拟研究了端部压弯不锈钢通道截面柱的短轴弯曲屈曲行为和强度。首先进行了一个实验程序，其中包括初始的全局和局部几何缺陷测量以及围绕次主轴的十二个端针柱测试。报告并详细讨论了获得的关键测试结果，包括破坏载荷，破坏载荷下的中高侧向挠度，载荷-中间高度的侧向挠曲曲线和破坏模式。实验程序之后是数值建模程序。开发了有限元模型来模拟测试响应，然后将其用于进行参数研究，以在宽截面尺寸和构件有效长度范围内的压弯不锈钢通道截面柱上生成进一步的数值数据。根据欧洲规范，美国规范，澳大利亚/新西兰的规定，所获得的实验和数值数据用于评估因短轴弯曲屈曲而失效的压弯不锈钢槽型柱相关设计规则的准确性。标准和SCI设计手册。