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dc.contributor.authorKumaresan, Karthiken_US
dc.date.accessioned2014-03-14T20:45:46Z
dc.date.available2014-03-14T20:45:46Z
dc.date.issued2011-09-08en_US
dc.identifier.otheretd-09212011-200527en_US
dc.identifier.urihttp://hdl.handle.net/10919/35144
dc.description.abstractUltra-High Performance Concrete (UHPC) is an evolving structural material that has attracted interest in the civil engineering industry recently. Currently, it is being used mainly for highway infrastructure in the US and also being explored for various other applications. The existing design guides on UHPC in countries like Japan, Australia and France are not as detailed as the concrete or steel guides. Most of the sections made of UHPC are slender due to its superior mechanical properties which are expected to simplify construction. Being an expensive material to use, making slender sections also helps to minimize the overall cost of the structure and makes it competitive with that of high strength steel and prestressed concrete. It has also been demonstrated to have very high compressive strength and considerable tensile strength. To begin with, an introduction on UHPC and its current applications around the world is presented, followed by a review of the existing design guides on UHPC. The importance as well as the methodology to measure fracture energy of concrete with factors to be considered for fiber reinforced concrete is discussed in detail. The main motive of this research is to introduce a creative modeling concept which served as the theoretical basis for the development of a computer program called Lattice 3D. The program is a modeling tool for engineers studying the behavior of UHPC, and in the future will be developed into a finite element protocol for analyzing complex structures made of UHPC. Parametric studies on lattice models of thin simply supported plates in compression and three-point bending of beams have been demonstrated in this research. Experimental tests conducted on briquette specimens under uniaxial tension are also discussed.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartKumaresan_K_T_2011.pdfen_US
dc.relation.haspartKumaresan_K_T_2011_Copyright.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectUHPCen_US
dc.subjectTessellationen_US
dc.subjectLattice elementen_US
dc.subjectFracture Energyen_US
dc.titleUltra-High Performance Concrete and Lattice Modelsen_US
dc.typeThesisen_US
dc.contributor.departmentCivil Engineeringen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
dc.contributor.committeechairMoen, Cristopher D.en_US
dc.contributor.committeememberCousins, Thomas E.en_US
dc.contributor.committeememberWright, William J.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-09212011-200527/en_US
dc.date.sdate2011-09-21en_US
dc.date.rdate2011-10-03
dc.date.adate2011-10-03en_US


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