5-7 December 2018 - Hong Kong, China


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



Sivaganesh Selvaraj1, Mahendrakumar Madhavan1*

1 Graduate Student Assistant, 1*Associate Professor

Department of Civil Engineering

Indian Institute of Technology Hyderabad, India

E-mails: This email address is being protected from spambots. You need JavaScript enabled to view it.1, This email address is being protected from spambots. You need JavaScript enabled to view it.1*



An experimental investigation on Cold-formed steel built-up sections with various slenderness were conducted under compression loading.  The CFS built-up sections were fabricated by connecting C channels using self-drilling fasteners. A total of 18 compression tests were carried out which includes five different intermediate connector spacings and three different lengths.  The ends of the CFS built-up columns were welded to the flat plate to arrest any rotation at the ends thereby simulating fixed‑fixed support condition.  The experimental results observed indicate different buckling modes such as global and interaction of global and local buckling modes.  The experimental test results were compared with the North American Specifications (AISI 2016) for Cold-formed steel design.  The comparison of test design results indicates that the design results are unconservative for many specimens.  The reliability analysis indicates that the current design procedure of AISI (2016) is unreliable for determination of the cold-formed steel built-up columns.


Cold-formed Steel; Built‑up cross­-section; Axial Compression; Intermediate connector spacings

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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