Experimental Investigation on Channel Columns with Complex Edge Stiffeners and Cap Shaped Stiffeners Under Eccentric Compression

被引：1
|
作者：
Song B. [1 ]
Wang L.-G. [1 ]
Wang C.-G. [2 ]
机构：
[1] School of Resources & Civil Engineering, Northeastern University, Shenyang
[2] Civil Engineering College, Shenyang Jianzhu University, Shenyang
来源：
Dongbei Daxue Xuebao/Journal of Northeastern University | 2018年 / 39卷 / 02期
关键词：
Cap shaped stiffener; Channel with complex edge stiffener; Instability mode; Shift of effective centroid; Ultimate bearing capacity;
D O I：
10.12068/j.issn.1005-3026.2018.02.024
中图分类号：
学科分类号：
摘要：
Eighteen simply supported eccentric compression specimens were tested to investigate the ultimate bearing capacity, instability mode, and deformation of three types of complex edge stiffened channels, including no stiffeners, intermediate cap shaped stiffeners in the web, intermediate cap shaped stiffeners in the web and the flanges. Results show that offset of the effective centroid has a significant effect on the bearing capacity of eccentric compressed members. Cap shaped stiffeners can effectively reduce the width-to-thickness ratio of the element and obviously increase the ultimate load bearing capacity as well as the steel utilization ratio of elements, but distortional buckling can become the dominate failure mode. Under the same conditions, the load bearing efficiency of plate with intermediate cap shaped stiffeners is improved by 15%~70%. © 2018, Editorial Department of Journal of Northeastern University. All right reserved.
引用
收藏
页码：272 / 277
页数：5
相关论文
共 10 条
  • [1] Yu W.W., Cold-formed Steel Design, pp. 1-15, (2000)
  • [2] Narayanan S., Mahendran M., Ultimate capacity of innovative cold-formed steel columns, Journal of Constructional Steel Research, 59, 4, pp. 489-508, (2003)
  • [3] Kwon Y.B., Kim B.S., Hancock G.J., Compression tests of high strength cold-formed steel channels with buckling interaction, Journal of Constructional Steel Research, 65, 2, pp. 278-289, (2009)
  • [4] Young B., Yan J., Design of cold-formed steel channel columns with complex edge stiffeners by direct strength method, Journal of Structural Engineering, 130, 11, pp. 1756-1763, (2004)
  • [5] Yan J.T., Young B., Numerical investigation of channel columns with complex stiffeners-part I: test verification, Thin-Walled Structures, 42, 6, pp. 883-893, (2004)
  • [6] Schafer B.W., Sarawit A., Pekoz T., Complex edge stiffeners for thin-walled members, Journal of Structural Engineering, 132, 2, pp. 212-226, (2006)
  • [7] Metallic materials-tensile testing at ambient temperature: GB/T228.1-2010, (2011)
  • [8] Zhang Y.C., Wang C.G., Zhang Z.N., Tests and finite element analysis of pin-ended channel columns with inclined simple edge stiffeners, Journal of Constructional Steel Research, 63, 3, pp. 383-395, (2007)
  • [9] Rasmussen K.J.R., Design of slender angle section beam-columns by the direct strength method, Journal of Structural Engineering, 132, 2, pp. 204-211, (2006)
  • [10] Wang C.-G., Zhang Z.-N., Zhang Y.-C., Experimental investigation on channel columns with complex edge stiffeners and intermediate stiffeners under axial compression, Engineering Mechanics, 30, 1, (2013)
1