Abstract
This paper describes the deformation limit and ultimate strength of welded T-joints in cold-formed RHS sections. Both web buckling failure mode and chord flange failure mode are investigated. The strength at a certain deformation (chord flange indentation) limit can be regarded as the ultimate strength of a T-joint. The deformation limit mainly depends on the ratio β (=b1/bo). Based on the test results of T-joints in cold-formed RHS sections, the deformation limit is found as 3%bo for 0.6≤β≤0.8 or 2γ≤15, and 1%bo for 0.3≤β<0.6 and 2γ>15. The ultimate strength so determined is compared with the existing design formulae. Proposed formulae for ultimate strength of web buckling failure and chord flange failure are given.
| Original language | English |
|---|---|
| Pages (from-to) | 149-165 |
| Number of pages | 17 |
| Journal | Journal of Constructional Steel Research |
| Volume | 53 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 17 Jan 2000 |
| Externally published | Yes |
Keywords
- Cold-formed steel
- Deformation limit
- Hollow sections
- Ultimate strength
- Welded joints
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Mechanics of Materials
- Metals and Alloys