5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

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


STRUCTURAL PERFORMANCE OF HOT-FINISHED HIGH STRENGTH STEEL SQUARE TUBULAR STUB COLUMNS AT ELEVATED TEMPERATURES

 

Han Fang 1* and Tak-Ming Chan 1

1 Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China

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DOI:10.18057/ICASS2018.P.151

ABSTRACT:

This paper presents a numerical investigation into the structural performance of hot-finished high strength steel S460 and S690 square tubular stub columns at elevated temperatures. FE models were developed and validated against experimental results. Extensive parametric studies using the validated FE models were carried out with the incorporation of material properties for S460 and S690 steel at various elevated temperatures, to investigate the structural performance of the stub columns with a wide range of cross-sectional slenderness and at elevated temperatures up to 700oC. The results of stub column strengths from parametric studies were compared with the design strength predictions obtained based on specifications in European and American standards. It was found that the standards provide significantly conservative strength predictions for the hot-finished S460 and S690 square tubular stub columns. Modifications to the design rules in European and American standards were proposed to achieve more accurate strength predictions for structural design.

Keywords:

Hot-finished; High strength steel; Stub column; Elevated temperatures; Finite element modelling; Design

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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