Performance of Steel Braced Frame Reinforced with Shape Memory Alloy Wires

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dc.contributor.advisorEl-Hacha, Rafaat
dc.contributor.authorVarughese, Kezia Ann
dc.contributor.committeememberShrive, Nigel
dc.contributor.committeememberFederico, Salvatore
dc.date2020-06
dc.date.accessioned2020-01-03T17:52:02Z
dc.date.available2020-01-03T17:52:02Z
dc.date.issued2019-12
dc.description.abstractShape memory alloys have just recently made their way into structural design, and through studies have proved to be quite effective in increasing a structure’s strength and performance. This thesis focuses on the research performed on concentrically braced steel frames reinforced with nickel-titanium (NiTi) shape memory alloy (SMA) wires for use as a seismic resistance force system. The main objective of this research was to design an innovative self-centring system that had the ability to dissipate energy and undergo large deformations that would occur during large earthquake motions. Three frames were designed and tested; one control steel braced frame and two SMA-reinforced steel braced frames. Examination of the systems under a free vibration test and a quasi-static cyclic test was conducted to study the effect the SMA wires had on the behaviour of the braced frames. Initial test results showed that the SMA braced frame had significant re-centring capabilities, and a potential for moderate energy dissipation. Investigation of the anchorage connection showed that the wires slipped out of their anchorage prematurely. With the improved system, it was concluded that the SMA-reinforced frame attained a significantly greater energy dissipation ability, self-centring response, and overall an enhanced performance than the conventional steel braced frame.en_US
dc.identifier.citationVarughese, K. A. (2019). Performance of Steel Braced Frame Reinforced with Shape Memory Alloy Wires (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/37396
dc.identifier.urihttp://hdl.handle.net/1880/111419
dc.language.isoengen_US
dc.publisher.facultySchulich School of Engineeringen_US
dc.publisher.institutionUniversity of Calgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en_US
dc.subjectStructural engineeringen_US
dc.subjectshape memory alloyen_US
dc.subjectNiTien_US
dc.subjectseismic engineeringen_US
dc.subjectpseudoelasticen_US
dc.subjectself-centringen_US
dc.subject.classificationEngineeringen_US
dc.titlePerformance of Steel Braced Frame Reinforced with Shape Memory Alloy Wiresen_US
dc.typemaster thesisen_US
thesis.degree.disciplineEngineering – Civilen_US
thesis.degree.grantorUniversity of Calgaryen_US
thesis.degree.nameMaster of Science (MSc)en_US
ucalgary.item.requestcopytrueen_US
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