Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Numerical study on racking behavior of light steel frames with K-shaped bracing

Numerical study on racking behavior of light steel frames with K-shaped bracing This paper aims to study the lateral behavior of cold-formed steel walls with K-shaped bracing by finite element modeling.Design/methodology/approachThe braces which have the same section as those for studs and tracks are connected to the frame by screw connections. By pushover analysis, lateral performance of two frame categories, with different dimensions and bracing arrangements, is examined, and the force-displacement diagram and the ultimate strength of walls are extracted. Probable failure modes during lateral loading including distortional buckling of studs, buckling in braces and failure of connections are simulated in the numerical model, and some strengthening suggestions would be offered to prevent brittle failures and, therefore, to increase the lateral strength of the walls.FindingsThe strengthened walls are examined, and their seismic behavior is compared with the original walls. Finally, a parametric study is carried out to evaluate the effect of factors such as thickness of frame members, frame height and yield tension of members on lateral behavior of the shear walls.Originality/valueIn the present research, lateral strength and failure modes of nine types of cold-formed steel shear walls with different arrangements of K-shaped bracing are examined by non-linear finite element analysis, and a parametric study is carried out to extract the effect of the wall frame characteristics on the lateral behavior. Shear walls are classified into two series. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png World Journal of Engineering Emerald Publishing

Numerical study on racking behavior of light steel frames with K-shaped bracing

Download PDF
10 pages

Loading next page...
 
/lp/emerald-publishing/numerical-study-on-racking-behavior-of-light-steel-frames-with-k-OnTX01i06S

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
1708-5284
DOI
10.1108/wje-12-2017-0407
Publisher site
See Article on Publisher Site

Abstract

This paper aims to study the lateral behavior of cold-formed steel walls with K-shaped bracing by finite element modeling.Design/methodology/approachThe braces which have the same section as those for studs and tracks are connected to the frame by screw connections. By pushover analysis, lateral performance of two frame categories, with different dimensions and bracing arrangements, is examined, and the force-displacement diagram and the ultimate strength of walls are extracted. Probable failure modes during lateral loading including distortional buckling of studs, buckling in braces and failure of connections are simulated in the numerical model, and some strengthening suggestions would be offered to prevent brittle failures and, therefore, to increase the lateral strength of the walls.FindingsThe strengthened walls are examined, and their seismic behavior is compared with the original walls. Finally, a parametric study is carried out to evaluate the effect of factors such as thickness of frame members, frame height and yield tension of members on lateral behavior of the shear walls.Originality/valueIn the present research, lateral strength and failure modes of nine types of cold-formed steel shear walls with different arrangements of K-shaped bracing are examined by non-linear finite element analysis, and a parametric study is carried out to extract the effect of the wall frame characteristics on the lateral behavior. Shear walls are classified into two series.

Journal

World Journal of Engineering – Emerald Publishing

Published: May 20, 2019

Keywords: Finite element method; Nonlinear analysis; Strengthening; Cold-formed steel; K-shaped brace; Light steel frame; Shear wall; Push over

References

  • Shear wall resistance of lightgage steel stud wall systems
    Adham, S.A.; Avanessian, V.; Hart, G.C.; Anderson, R.W.; Elminger, J.; Gergory, J.
  • Inelastic performance of cold-formed steel strap braced walls
    Al-Kharat, M.; Rogers, C.A.
  • Performance-based evaluation of strap-braced cold-formed steel frames using incremental dynamic analysis
    Davani, M.R.; Hatami, S.; Zare, A.
  • Performance of wall-stud cold-formed shear panels under monotonic and cyclic loading: part I: experimental research
    Dubina, D.; Fulop, L.
  • Seismic behavior of cold-formed steel frame shear walls sheathed with ply-bamboo panels
    Gao, W.C.; Xiao, Y.
  • Behavior of thin strap-braced cold-formed steel frames under cyclic loads
    Hatami, S.; Ronagh, H.R.; Azhari, M.
  • A parametric study on seismic characteristics of cold-formed steel shear walls by finite element modeling
    Hatami, S.; Rahmani, A.; Parvaneh, A.; Ronagh, H.R.
  • A numerical study on response modification factor of CFS walls sheathed with steel sheets
    Hatami, S.; Gholikhani, M.; Farahbod, F.; Davani, M.R.
  • Test report on cold-formed steel shear walls
    Liu, P.; Peterman, K.D.; Schafer, B.W.
  • Analytical and experimental study on the seismic performance of cold-formed steel frames
    Mojtabaei, S.M.; Kabir, M.Z.; Hajirasouliha, I.; Kargar, M.
  • Monotonic shear tests of cold-formed steel wall frames with sheathing
    Pan, C.L.; Shan, M.Y.
  • The seismic performance of K-braced cold-formed steel shear panels with improved connections
    Pourabdollah, O.; Farahbod, F.; Rofooei, F.R.
  • Steel frame/wood panel shear walls: preliminary design information for use with the 2005 NBCC
    Rogers, C.A.; Branston, A.E.; Boudreault, F.A.; Chen, C.A.
  • Shear wall resistance of gypsum-sheated light-gauge steel stud wall
    Serrette, R.; Ogunfunmi, K.
  • Lateral force resisting systems in lightweight steel frames: recent research advances
    Sharafi, P.; Mortazavi, M.; Usefi, N.; Kildashti, K.; Ronagh, H.; Samali, B.
  • Seismic performance of high-strength lightweight foamed concrete-filled cold-formed steel shear walls
    Xu, Z.; Chen, Z.; Osman, B.H.; Yang, S.
  • Shear resistance of cold-formed steel framed shear walls with 0.686 mm, 0.762 mm, and 0.838 mm steel sheet sheathing
    Yu, C.
  • Detailing recommendations for 1.83 m wide cold-formed steel shear walls with steel sheathing
    Yu, C.; Chen, Y.
  • Experimental investigation of cold-formed steel framed shear wall using corrugated steel sheathing with circular holes
    Yu, C.; Yu, G.
  • C-channel single stud capacity
    Zeynalian, M.
  • Seismic characteristics of K-braced cold-formed steel shear walls
    Zeynalian, M.; Ronagh, H.R.; Hatami, S.