Lateral bracing forces in compressed two-span columns with initial curvature

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dc.contributor.authorYang, Jae-Guenen
dc.contributor.departmentCivil Engineeringen
dc.date.accessioned2014-03-14T21:31:23Zen
dc.date.adate2009-03-12en
dc.date.available2014-03-14T21:31:23Zen
dc.date.issued1991en
dc.date.rdate2009-03-12en
dc.date.sdate2009-03-12en
dc.description.abstractThe main purpose of this study is to find critical loads and full bracing conditions for perfect two-span columns, and to find the reaction forces at the lateral bracing supports and maximum deflections for two-span columns with initial curvature. In each case, the column under consideration may have different bending stiffnesses in each span, and the column is subjected to an axial compressive load. The braces are not assumed to be equally spaced, and may have different spring stiffnesses. For the perfect columns, it is found that if the internal lateral support is located in the middle of the column , the column can resist a higher applied load than for any other support location. The load resisting capacity of the column depends on the lateral spring stiffness. It is also found that an ideal spring stiffness, corresponding to full bracing, only exists under special conditions. For the imperfect columns, the initial shape is assumed to be the same as the buckling mode of the perfect column, and its size is specified. It is found that there are no reaction forces when there is full bracing. The reaction forces and maximum deflections are proportional to the size of the initial deflection, so their values for initial deflections of the same shape but different size can be determined directly from the results presented here.en
dc.description.degreeMaster of Scienceen
dc.format.extent104 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-03122009-041429en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-03122009-041429/en
dc.identifier.urihttp://hdl.handle.net/10919/41515en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1991.Y362.pdfen
dc.relation.isformatofOCLC# 25403977en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1991.Y362en
dc.subject.lcshColumnsen
dc.titleLateral bracing forces in compressed two-span columns with initial curvatureen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineCivil Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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