5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

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


EXPERIMENTAL INVESTIGATION OF SELF-CENTERING STEEL COLUMNS WITH SMA BOLTS

 

Bin Wang 1*, Songye Zhu 1

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

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DOI:10.18057/ICASS2018.P.103

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.

Keywords:

Rocking column; Shape memory alloy; Self-centering; Flag-shaped hysteretic loop; seismic resilience

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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