Resistance of cold-formed high strength steel angles

Title

Resistance of cold-formed high strength steel angles

 Author

Tran, Anh Tuan (Luleå Univ. of Technology)
Bernspång, Lars (Luleå Univ. of Technology)
Veljkovic, M. (TU Delft Steel & Composite Structures) ORCID 0000-0003-4791-2341
Rebelo, Carlos (Universidade de Coimbra)
Da Silva, Luís Simõ ões (Universidade de Coimbra)

Date

2019

 Abstract

This paper describes a study of the behaviour of cold-formed high strength steel angles. Thirty-six specimens with different cold-formed angles (90°, 100°, 120°, 140°, 160°, and 170°) and different thicknesses (4 mm and 6 mm) were considered. The initial geometric imperfections of the specimens were determined using the 3D laser scanning method. The magnitudes of these geometric imperfections for torsional and torsional-flexural buckling and flexural buckling analyses were proposed. The commercial finite element analysis (FEA) programme ABAQUS with shell elements S4R was used for finite element analyses. Different material strengths in corner and flat parts along with different proof stresses (0.2%, 0.01%, and 0.006%) were considered in the numerical models. The experimental and FEA results showed good agreement. Influence of cold-formed angle on non-dimensional slenderness and reduction factor curves of the 4 mm thick columns with 90° and 120° cold-formed angles was analysed.


 Subject

Cold-formed angle
Experimental investigation
Finite element analysis
Geometrical imperfections
High strength steel
Proof stress

 To reference this document use:

http://resolver.tudelft.nl/uuid:c7f8bc4f-ab13-4ab4-beff-bea901cc7d2f

 DOI

https://doi.org/10.18057/IJASC.2019.15.3.4

 ISSN

1816-112X

 Source

Advanced Steel Construction, 15 (3), 242-251

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

© 2019 Anh Tuan Tran, Lars Bernspång, M. Veljkovic, Carlos Rebelo, Luís Simõ ões Da Silva
Files
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