Experimental study of ferritic stainless steel tubular section beam-columns subjected to moment gradients

O. Zhao, L. Gardner, B. Young

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

Abstract

This paper presents a comprehensive experimental study of the buckling behaviour of ferritic stainless steel tubular section beam-columns subjected to unequal end moments. The experimental investigation included material tensile coupon tests, initial geometric imperfection measurements and twenty-four beam-column tests under unequal end moments. The experimental results were carefully analysed and then compared with the design strength predictions determined from current international design standards, enabling the accuracy of each codified method to be evaluated. Generally, the European code resulted in the most conservative and scattered strength predictions, owing principally to the use of the same treatment for stainless steel beam-columns under both equal and unequal end moments. The American specification and Australian/New Zealand standard employ an equivalent uniform moment factor to consider the beneficial effect of moment gradient on beam-column strengths. These approaches were shown to offer more accurate and consistent capacity predictions for ferritic stainless steel beam-columns under unequal end moments, though further improvements remain possible.

Original languageEnglish
Title of host publicationInsights and Innovations in Structural Engineering, Mechanics and Computation - Proceedings of the 6th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2016
EditorsAlphose Zingoni
PublisherCRC Press/Balkema
Pages1106-1112
Number of pages7
ISBN (Print)9781138029279
Publication statusPublished - 1 Jan 2016
Externally publishedYes
Event6th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2016 - Cape Town, South Africa
Duration: 5 Sep 20167 Sep 2016

Publication series

NameInsights and Innovations in Structural Engineering, Mechanics and Computation - Proceedings of the 6th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2016

Conference

Conference6th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2016
CountrySouth Africa
CityCape Town
Period5/09/167/09/16

ASJC Scopus subject areas

  • Mechanical Engineering
  • Civil and Structural Engineering

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