Cold-formed stainless steel sections are becoming more widely used in the residential and commercial sectors due to their high corrosion resistance and high strength-to-weight ratio. However, their susceptibility to web crippling at points of concentrated loading is well-known to be an important design issue. In addition, web openings are also become popular, as they improve ease of installation of services. This paper presents the results of an investigation into the effect of web crippling on cold-formed duplex stainless steel lipped channel-sections, having such openings, under the interior-one-flange (IOF) loading condition. 742 non-linear elasto-plastic finite element analyses are undertaken, with web openings located either centred beneath the bearing plate or offset to bearing plate. The effect of the size of the web opening, length of bearing plate and location of the web opening is considered. Strength reduction factor equations are proposed, that can be used to take into account such openings in design.
|Number of pages||12|
|Publication status||Accepted/In press - 25 Jul 2016|
|Event||23rd International Specialty Conference on Cold-Formed Steel Structures - St. Louis, Missouri, United States|
Duration: 9 Nov 2016 → 10 Nov 2016
|Conference||23rd International Specialty Conference on Cold-Formed Steel Structures|
|Period||9/11/16 → 10/11/16|
- cold-formed stainless steel
- lipped channel-section
- web crippling
- finite element analysis
- strength reduction factor
- corrosion resistance
- strength-to-weight ratio
- loading conditions
Yousefi, A. M., Lim, J. B. P., Uzzaman, A., Lian, Y., Clifton, G. C., & Young, B. (Accepted/In press). Web crippling strength of cold-formed duplex stainless steel lipped channel-sections with web openings subjected to interior-one-flange loading condition. 1-12. Paper presented at 23rd International Specialty Conference on Cold-Formed Steel Structures, Missouri, United States.