Research Articles | Challenge Journal of Structural Mechanics

Nonlinear finite element analysis of cold-formed steel plain angle columns

Mustafa Durmaz, Ayşe Daloğlu


DOI: https://doi.org/10.20528/cjsmec.2016.11.033

Abstract


The main objective of this paper is to provide an efficient and accurate finite element model to understand the behavior of cold-formed steel plain angle columns. The effects of initial local and overall geometric imperfections have been taken into consideration in the analysis. The material nonlinearities of flat and corner portions of the angle sections were incorporated in the model. Failure loads and buckling modes as well as load-shortening curves of plain angle columns were investigated in this study. The nonlinear finite element model was verified against experimental results. The finite element analysis was performed on plain angles compressed between fixed ends over different column lengths, and column curves were obtained.


Keywords


cold-formed steel angles; columns; buckling; nonlinear finite element analysis

Full Text:

PDF

References


ABAQUS Standard User's Manual (2013). Hibbit, Karlsson and Sorensen, Inc., Vols. 1, 2 and 3, Version 6.13.

American Iron and Steel Institute (AISI) (1996). Specification for the Design of Cold-Formed Steel Structural Members, Washington, D.C.

Australian/New Zealand Standard (AS/NZS) (1996). Cold-Formed Steel Structures, AS/NZS 4600:1996, Standards Australia, Sydney, Australia.

Durmaz M, Daloğlu A (2007). Merkezi yüklü korniyerlerin yük taşıma kapasiteleri. 2nd Steel Structures Symposium, TMMOB Chamber of Civil Engineers, Eskişehir. (in Turkish)

Durmaz M, Daloğlu A (2009). Eksantrik yüklü korniyerlerin yük tasıma kapasiteleri. 3th Steel Structures Symposium, TMMOB Chamber of Civil Engineers, Gaziantep. (in Turkish)

Ellobody E, Young B (2005). Behavior of cold formed steel plain angle columns. Journal of Structural Engineering, 131(3), 457-466.

https://doi.org/10.1061/(ASCE)0733-9445(2005)131:3(457)

Gardner L (2002). A New Approach to Structural Stainless Steel Design, Ph.D. Thesis, Department of Civil and Environmental Engineering, Imperial College of Science, Technology and Medicine, London.

Jiao H, Zhao XL (2003). Imperfections, residual stress and yield slenderness limit of very high strength (VHS) circular steel tubes. Journal of Constructional Steel Research, 59, 233–249.

https://doi.org/10.1016/S0143-974X(02)00025-1

Madugula MKS, Prabhu TS, Temple MC (1983). Ultimate strength of concentrically loaded cold-formed angles. Canadian Journal of Civil Engineering, 10, 60–68.

https://doi.org/10.1139/l83-008

Nandula R (1998). Finite Element Analysis of Eccentrically Loaded Angles, M.Sc. Thesis, University of Windsor, Windsor, Ontario, Canada.

Popovic D, Hancock GJ, Rasmussen KJR (1999). Axial compression tests of cold-formed angles. Journal of Structural Engineering, 125(5), 515–523.

https://doi.org/10.1061/(ASCE)0733-9445(1999)125:5(515)

Schafer BW, Pekoz T (1998). Computational modeling of cold formed steel: Characterizing geometric imperfections and residual stresses. Journal of Constructional Steel Research, 47, 193–210.

https://doi.org/10.1016/S0143-974X(98)00007-8

Weng CC, Pekoz T (1990). Residual stresses in cold-formed steel members. Journal of Structural Engineering, 116(6), 1611–1625.

https://doi.org/10.1061/(ASCE)0733-9445(1990)116:6(1611)

Young B (2004). Tests and design of fixed-ended cold-formed steel plain angle columns. Journal of Structural Engineering, 130(12), 1931–1940.

https://doi.org/10.1061/(ASCE)0733-9445(2004)130:12(1931)

Young B, Yan J (2002). Finite element analysis and design of fixed-ended plain channel columns. Finite Element Analysis and Design, 38, 549–566.

https://doi.org/10.1016/S0168-874X(01)00085-3

---

Peer-review under responsibility of the organizing committee of ACE2016.


Refbacks

  • There are currently no refbacks.