Experimental investigation of self-centering steel columns with SMA bolts

Bin Wang, Songye Zhu

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

Abstract

This paper investigates the cyclic responses of a novel type of steel column equipped with shape memory alloy (SMA) bolts in the base connection, which is motivated by the recent use of SMAs to achieve the target of minimal-damage structures under strong earthquakes. Cyclic loading tests of two scaled steel columns were carried out to investigate the effects of the length of SMA bolts, the prestrain level in SMA bolts, and the axial compressive force in the column. Test results indicate that both specimens generally exhibited satisfactory and stable flag-shaped hysteretic loops with good self-centering ability and moderate energy dissipation capabilities. Moreover, the initial prestrain in the SMA bolts and compressive force in the column can improve the self-centering ability. The novel self-centering column shows effective and promising solutions to seismic resilience 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

  • Flag-shaped hysteretic loop
  • Rocking column
  • Seismic resilience
  • Self-centering
  • Shape memory alloy

ASJC Scopus subject areas

  • Metals and Alloys
  • Civil and Structural Engineering

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