dc.contributor.author	Smith, Jeffrey Scott	en
dc.contributor.committeechair	Loferski, Joseph R.	en
dc.contributor.committeemember	Hindman, Daniel P.	en
dc.contributor.committeemember	Kamke, Frederick A.	en
dc.contributor.department	Wood Science and Forest Products	en
dc.date.accessioned	2014-03-14T21:42:07Z	en
dc.date.adate	2004-08-12	en
dc.date.available	2014-03-14T21:42:07Z	en
dc.date.issued	2004-07-23	en
dc.date.rdate	2007-08-12	en
dc.date.sdate	2004-08-04	en
dc.description.abstract	The effect of cyclic moisture infiltration on connections in light-frame wood buildings has received limited research attention. Specifically, the connections between wood-based sheathing materials (OSB, plywood) and solid wood studs are of interest. A comprehensive understanding of connection performance will enhance structure and material design, thereby improving the overall integrity and robustness of light-frame structures. The focus of this research project was to evaluate the strength and stiffness of wood-frame connections exposed to cyclic humidity conditioning. Nailed sheathing/stud connection samples were tested for lateral resistance following various periods of moisture exposure. Elastic stiffness, 5% offset yield load, maximum yield load, and failure yield were computed and analyzed using the data collected. The parameters were compared among connection specimens receiving either 0, 1, 5, 10, 15, 25, or 40 periods of cyclic moisture conditioning. In addition, the bearing resistances of the materials were investigated for application to the general dowel equations for calculating lateral connection values, the current basis for design of single dowel-type fastener connections between wood-based members. An x-ray density profilometer was used to observe the de-densification processes within the composite sheathing materials throughout the moisture conditioning regime. Results indicated moderate to extreme changes in the performance of cycled connections involving lower density sheathing materials. Higher density sheathing materials performed favorably at each cycle test period. Comparisons to the yield model were similar to the control results, but usually differed as cycling increased. Analysis of connection performance following cyclic moisture loading is a vital component in developing a holistic model for service-life prediction of nailed connections in light-frame residential construction.	en
dc.description.degree	Master of Science	en
dc.identifier.other	etd-08042004-142648	en
dc.identifier.sourceurl	http://scholar.lib.vt.edu/theses/available/etd-08042004-142648/	en
dc.identifier.uri	http://hdl.handle.net/10919/44136	en
dc.publisher	Virginia Tech	en
dc.relation.haspart	appendix_D.pdf	en
dc.relation.haspart	vita.pdf	en
dc.relation.haspart	appendix_B.pdf	en
dc.relation.haspart	appendix_C.pdf	en
dc.relation.haspart	references.pdf	en
dc.relation.haspart	appendix_E.pdf	en
dc.relation.haspart	appendix_A.pdf	en
dc.relation.haspart	description_of_appendices.pdf	en
dc.relation.haspart	chapter_5_summary_and_conclusions.pdf	en
dc.relation.haspart	chapter_2_literature_review.pdf	en
dc.relation.haspart	chapter_3_materials_and_methods.pdf	en
dc.relation.haspart	chapter_4_results_and_discussion.pdf	en
dc.relation.haspart	chapter_1_introduction.pdf	en
dc.relation.haspart	front_matter.pdf	en
dc.rights	In Copyright	en
dc.rights.uri	http://rightsstatements.org/vocab/InC/1.0/	en
dc.subject	wood-based composites	en
dc.subject	connections	en
dc.subject	monotonic loading	en
dc.subject	durability	en
dc.subject	moisture cycling	en
dc.title	An Investigation of Nailed Connection Performance in a Cyclic Humidity Environment	en
dc.type	Thesis	en
thesis.degree.discipline	Wood Science and Forest Products	en
thesis.degree.grantor	Virginia Polytechnic Institute and State University	en
thesis.degree.level	masters	en
thesis.degree.name	Master of Science	en

An Investigation of Nailed Connection Performance in a Cyclic Humidity Environment

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