In-Plane Core Fill Strengthening of Concrete Block Masonry Shear Walls

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atmire.migration.oldid5225
dc.contributor.advisorLissel, Shelley
dc.contributor.authorHarris, Ryan Timothy
dc.contributor.committeememberEl-Badry, Mamdouh
dc.contributor.committeememberShrive, Nigel
dc.contributor.committeememberSudak, Leszek
dc.contributor.committeememberSherwood, Edward
dc.date.accessioned2017-01-05T17:01:04Z
dc.date.available2017-01-05T17:01:04Z
dc.date.issued2017
dc.date.submitted2017en
dc.description.abstractGiven the observed poor performance of unreinforced concrete block masonry walls in recent earthquakes, there is significant demand in Canada and internationally for economical methods to improve the seismic performance of such walls. Common retrofit methods such as the application of external fibre reinforced polymer sheets, installation of conventional steel reinforcement or post-tensioning are often expensive, and visually intrusive. The proposed retrofit method involves filling the internal void space of concrete block walls with grout or a similar material that hardens after installation. This approach has been examined in a few studies, but has yet to be studied comprehensively. Herein referred to as core fill strengthening, this method has the potential to be a simple, unobtrusive and cost effective retrofit. In the current study, two core fill types, steel fibre reinforced grout and two part polyurethanes, have been examined. This was done through tests at a material level, tests of small masonry assemblages and tests on full scale masonry walls. These tests were coupled with finite element analyses of the various core fill materials, and later finite element models of full scale walls. Experimental results were then used to develop equations to predict the strength of core filled walls under in-plane shear failing in flexure, diagonal shear and sliding. Results indicate that core fill materials can improve both the strength and ductility of masonry walls in diagonal shear and flexure, and that further investigation into both polyurethane and steel fibre reinforced grout retrofits is justified.en_US
dc.identifier.citationHarris, R. T. (2017). In-Plane Core Fill Strengthening of Concrete Block Masonry Shear Walls (Doctoral thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/26544en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/26544
dc.identifier.urihttp://hdl.handle.net/11023/3541
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
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.
dc.subjectEngineering--Civil
dc.subject.otherMasonry
dc.subject.otherSeismic Retrofit
dc.subject.otherConcrete Block
dc.subject.otherIn-Plane Shear
dc.subject.otherCore Fill
dc.subject.otherShear Wall
dc.titleIn-Plane Core Fill Strengthening of Concrete Block Masonry Shear Walls
dc.typedoctoral thesis
thesis.degree.disciplineCivil Engineering
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameDoctor of Philosophy (PhD)
ucalgary.item.requestcopytrue
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