5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

Ninth International Conference on Advances in Steel Structures (ICASS 2018)


ELASTIC BUCKLING OF COLD-FORMED STEEL COMPLEX CROSS SECTIONS USING CONSTRAINED SPLINE FINITE STRIP METHOD (CSFSM)

 

Ajeesh S S 1*, and Arul Jayachandran S 2

1 Vellore Institute of Technology, Vellore, India

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2 Indian Institute of Technology Madras, Chennai, India

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DOI:10.18057/ICASS2018.P.147

ABSTRACT:

This paper presents the application of constrained spline finite strip method (cSFSM) for cold-formed steel members with complex edge stiffeners. In this method, the principles of GBT are used to develop restraint matrices corresponding to local, distortional and global buckling. These matrices are applied in generalized eigen value equation by using transformation technique. The critical buckling stresses were calculated separately for pure local, distortional and global buckling. Based on the formulation, cross sectional geometries having complex lips are analysed to study the variations in buckling stresses developed. The increase in complexity of lip stiffeners increases the local buckling capacity of the cross section. However, for distortional buckling, the cross sections with inward lip stiffener offer higher buckling capacity than those with outward lips. The influence of lip stiffeners on global buckling was observed to be marginal from the present study.

Keywords:

Cold-formed steel; Spline finite strip method; Generalized beam theory; Buckling; Mode decomposition

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IMPORTANT DATES

First call for paper:
1 January 2018
Abstract submission: (CLOSED)
1 April 2018
Notification of abstract acceptance:
on or before 16 April 2018 
Full paper submission: 
15 July 2018
Online Registration Begins:
1 August 2018
Notification of full paper acceptance:
31 August 2018
Early bird registration:
on or before 7 September 2018
Online Registration Closes:
31 October 2018
Announcement of programme:
1 November 2018
ICASS2018 December 05, 2018 08:00 AM Time's Up