Structural performance of hot-finished high strength steel square tubular stub columns at elevated temperatures

Han Fang, Tak Ming Chan

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

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.

Original languageEnglish
Title of host publicationProceedings of the 9th International Conference on Advances in Steel Structures, ICASS 2018
EditorsSiu Lai Chan, Tak-Ming Chan, Songye Zhu
PublisherHong Kong Institution of Steel Construction
ISBN (Electronic)9889914093, 9789889914097
DOIs
Publication statusPublished - Dec 2018
Event9th International Conference on Advances in Steel Structures, ICASS 2018 - Hong Kong, China
Duration: 5 Dec 20187 Dec 2018

Publication series

NameProceedings of the 9th International Conference on Advances in Steel Structures, ICASS 2018

Conference

Conference9th International Conference on Advances in Steel Structures, ICASS 2018
CountryChina
CityHong Kong
Period5/12/187/12/18

Keywords

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

ASJC Scopus subject areas

  • Metals and Alloys
  • Civil and Structural Engineering

Cite this