Experimental investigation of concrete columns wrapped with shape memory alloy spirals

Bassem O Andrawes, Moochul Shin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This experimental work focuses on enhancing the seismic performance of reinforced concrete (RC) columns by using innovative active confinement technique. Spirals made of Shape Memory Alloys (SMAs) are utilized to provide the active confining pressure. The proposed technique is investigated experimentally through the testing of two reduced-scale columns under quasi-static cyclic loading. One of the columns is confined passively using glass fiber reinforced polymer (GFRP) sheets while the other is confined using a reduced number of GFRP sheets in addition to prestressed SMA spirals. The confining pressure on both columns is designed to be the same. The results show significant increase in the energy dissipation and ductility of the column wrapped with SMA spirals compared to that with GFRP sheets.

Original languageEnglish (US)
Title of host publicationImproving the Seismic Performance of Existing Buildings and Other Structures - Proc. 2009 ATC and SEI Conference on Improving the Seismic Performance of Existing Buildings and Other Structures
Pages835-840
Number of pages6
DOIs
StatePublished - Dec 1 2009
Event2009 ATC and SEI Conference on Improving the Seismic Performance of Existing Buildings and Other Structures - San Francisco, CA, United States
Duration: Dec 9 2009Dec 11 2009

Publication series

NameImproving the Seismic Performance of Existing Buildings and Other Structures - Proc. 2009 ATC and SEI Conference on Improving the Seismic Performance of Existing Buildings and Other Structures

Other

Other2009 ATC and SEI Conference on Improving the Seismic Performance of Existing Buildings and Other Structures
CountryUnited States
CitySan Francisco, CA
Period12/9/0912/11/09

Keywords

  • Active confinement
  • Ductility
  • Fiber reinforced polymers
  • Shape memory alloys

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Civil and Structural Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Building and Construction

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