Methodology to predict the strength and stiffness of red alder block pallet connections fastened with helically threaded nails

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dc.contributor.authorSosa, Hector M.en
dc.contributor.departmentWood Science and Forest Productsen
dc.date.accessioned2014-03-14T21:33:00Zen
dc.date.adate2009-04-07en
dc.date.available2014-03-14T21:33:00Zen
dc.date.issued1994en
dc.date.rdate2009-04-07en
dc.date.sdate2009-04-07en
dc.description.abstractThe objective of this project is to develop a methodology to measure and predict the strength and the stiffness of red alder (Alnus rubra) nailed pallet connections subjected to repetitive loading. Joint tests were conducted to define the mechanical properties of bottom block pallet connections. The primary tests were conducted to define the strength and stiffness of joint specimens tested in cyclic lateral loading, using three different side member thicknesses and four types of nails. Also, the influence of other specific variables on joint performance was evaluated including friction, pattern, moisture content, number of nails per joint, specific gravity, and rate of loading. In total, 23 sets of nailed joint specimens, with 15 replications each, were constructed and tested. The use of a reversing cyclic lateral loading procedure permits documentation of the effect of dynamic loading on the load-slip response of the connection. Analysis of the data included the creation of two envelope curves, the initial and the final (stabilized) curve. The data obtained from the two curves was used to find the “best” model for predicting the strength and stiffness of the connections. Four models were identified but only one of these was found useful for prediction purposes. Finally, experimental capacity loads were found to be at least three times greater than the national design specification allowable design loads.en
dc.description.degreeMaster of Scienceen
dc.format.extentxvii, 197 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-04072009-040852en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-04072009-040852/en
dc.identifier.urihttp://hdl.handle.net/10919/41940en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1994.S697.pdfen
dc.relation.isformatofOCLC# 32378523en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1994.S697en
dc.subject.lcshMaterials -- Dynamic testingen
dc.subject.lcshPallets (Shipping, storage, etc) -- Testingen
dc.subject.lcshRed alder productsen
dc.titleMethodology to predict the strength and stiffness of red alder block pallet connections fastened with helically threaded nailsen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineWood Science and Forest Productsen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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