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dc.contributor.advisorSalim, Hani A., 1966-eng
dc.contributor.authorAgee, Brett Michaeleng
dc.date.issued2010eng
dc.date.submitted2010 Falleng
dc.descriptionDecember 2010.eng
dc.description"A Thesis Presented to the Faculty of the Graduate School at the University of Missouri In Partial Fulfillment of the requirements for the Degree Master of Science in Civil Engineering."eng
dc.descriptionThesis supervisor: Dr. Hani Salim.eng
dc.descriptionIncludes bibliographical references (pages 69-70).eng
dc.description.abstract[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Most research in the area of blast resistant and retrofit designs has focused on high threat levels to meet the DOD and DOS needs. This report shows the need for moderate blast threat level protection and proposes ways to achieve that protection. Cold-formed steel stud wall systems are already used in many applications and could be effectively adapted to meet these threat levels. The objective of this report is to increase the strength of the connection of cold-formed steel stud-track systems to allow the studs to utilize part or all of the inherent tensile membrane resistance. The proposed solutions of upgrading stud-track wall connections with extra screws, larger screws, larger track and thicker track, etc. are evaluated and compared against each other and the current typical connection design. To accomplish this evaluation, four-foot long samples are constructed and loaded using a four-point loading tree. The results are compiled and trends are developed which are used to develop a matrix of full-length (ten-foot) samples. This study concludes that adding extra screws, along with stud thickness, are practical and efficient methods of altering the failure mechanisms and increasing the blast resistant characteristics of these wall systems. With these upgraded connections, lighter gauge sample show some tensile membrane behavior. Also discussed are the United Facilities Criteria (UFC) limits on deflection and data to support revising those criteria.eng
dc.description.bibrefIncludes bibliographical references (pages 69-70).eng
dc.format.extent1 online resource (xvi, 160 pages in various pagings) : illustrations (chiefly color)eng
dc.identifier.merlinb106972881eng
dc.identifier.oclc900548481eng
dc.identifier.urihttps://hdl.handle.net/10355/44852
dc.identifier.urihttps://doi.org/10.32469/10355/44852eng
dc.languageEnglisheng
dc.publisher[University of Missouri--Columbia]eng
dc.relation.ispartofcollectionUniversity of Missouri--Columbia. Graduate School. Theses and Dissertationseng
dc.rightsAccess is limited to the campuses of the University of Missouri.eng
dc.subjectCivil Engineeringeng
dc.titleUpgrading conventional cold-formed steel connections to protect against moderate blast eventseng
dc.typeThesiseng
thesis.degree.disciplineCivil engineering (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelMasterseng
thesis.degree.nameM.S.eng


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