5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

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


ULTIMATE STRENGTH OF COLD-FORMED STEEL BUILT-UP COLUMNS: EFFECT OF LACING SLENDERNESS

 

M. Adil Dar, Dipti Ranjan Sahoo*and Arvind K. Jain

Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi, India

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DOI:10.18057/ICASS2018.P.129

ABSTRACT:

Cold-formed steel (CFS) sections have gained popularity in the recent years primarily due to their high strength-to-weight ratio and faster constructions. Built-up members are often adopted as  compression members subjected to the high axial force demands. Past studies have mainly focused on the performance evaluation of built-up CFS columns with intermediate battens. In this study, a numerical investigation has been conducted on built-up CFS column specimens comprising of four angle sections connected each other by using lacings. Finite element models are developed in a computer software ABAQUS to investigate the behaviour of built-up CFS laced columns of varying slenderness ratio and spacing of lacing elements. The numerical models are validated against the test results for built-up laced CFS columns. Finally, design curves for the built-up CFS laced columns are developed and compared with those in current design standards. This study ascertained that lacing slenderness affects the ultimate axial load-resisting capacity of built-up CFS columns.

Keywords:

Built-up columns; Cold-formed sections; Lacings; Numerical modelling; Strength

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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