Bracing requirements for post-frame endwalls

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dc.contributor.authorWirt, Donald Leeen
dc.contributor.departmentAgricultural Engineeringen
dc.date.accessioned2014-03-14T21:31:22Zen
dc.date.adate2009-03-12en
dc.date.available2014-03-14T21:31:22Zen
dc.date.issued1991en
dc.date.rdate2009-03-12en
dc.date.sdate2009-03-12en
dc.description.abstractWhen diaphragm action is considered in the design of post-frame buildings, the endwalls may require supplemental reinforcement to replace lost strength and stiffness, due to placement of large doors and openings in the endwalls. The diaphragm design standard, ASAE EP484, does not provide guidelines concerning such endwall reinforcement. Flat steel strapping 1s proposed for use as supplemental reinforcement to replace this lost strength and stiffness. An analysis procedure was developed, with the intention of serving as input to endwall diaphragm design. Using PPSA 3.00 and calibrated endwall data, a computer structural analog was developed that “mimics” the deflection of an actual solid endwall. Sections of the structural analog were removed to represent a centered door opening. Fictitious members representing steel-strap bracing were added to the remaining endwall diaphragm to restore the endwall deflection to that of the same endwall with no door openings. Large corner post uplift values were observed for tall endwalls. For purposes of endwall analysis, it is necessary to distribute corner post uplift forces to the other posts along the adjacent endwall and sidewall. Along with the tabulated results in this research, this analysis procedure provides building designers a tool that will enable them to analyze virtually any endwall-door combination. All that is required is PPSA 3.00 software (or equivalent), a personal computer, and endwall stiffness data.en
dc.description.degreeMaster of Scienceen
dc.format.extentix, 126 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-03122009-041358en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-03122009-041358/en
dc.identifier.urihttp://hdl.handle.net/10919/41510en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1991.W578.pdfen
dc.relation.isformatofOCLC# 24041300en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1991.W578en
dc.subject.lcshWalls -- Researchen
dc.titleBracing requirements for post-frame endwallsen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineAgricultural Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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