Abstract
The paper presents a test program on innovative cold-formed steel built-up closed sections with intermediate stiffeners. The test specimens were firstly brake-pressed from structural steel sheets to form open sections with intermediate web stiffeners, then two of the open sections were connected at their flanges using self-tapping screws to form the built-up closed sections. The innovative specimens were compressed between fixed ends condition. The material properties of the column specimens were obtained by tensile coupon tests. The column test strengths were compared with the design strengths calculated using the direct strength method. Three different methods were used to obtain the local and distortional buckling stresses for the calculation of the direct strength method. Generally, it is shown that the direct strength method using single section to obtain the buckling stresses are conservative.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 9th International Conference on Steel, Space and Composite Structures, Yantai & Beijing, China |
| Pages | 43-53 |
| Number of pages | 11 |
| Publication status | Published - 1 Jan 2007 |
| Externally published | Yes |
| Event | 9th International Conference on Steel, Space and Composite Structures - Yantai and Beijing, China Duration: 10 Oct 2007 → 15 Oct 2007 |
Conference
| Conference | 9th International Conference on Steel, Space and Composite Structures |
|---|---|
| Country/Territory | China |
| City | Yantai and Beijing |
| Period | 10/10/07 → 15/10/07 |
Keywords
- Built-up sections
- Cold-formed steel
- Columns
- Distortional buckling
- Experimental investigation
- Local buckling
- Steel structures
- Structural design
- Thin-walled structures
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Electronic, Optical and Magnetic Materials