Thesis
Mechanical connection properties and techniques for lightweight wood-strand sandwich panels
Washington State University
Master of Science (MS), Washington State University
2012
Handle:
https://hdl.handle.net/2376/100591
Abstract
Lightweight wood-strand sandwich panels (LWPs) have shown improvement upon the structural, thermal and hygrothermal properties of oriented strand board (OSB). In order to use LWPs as a replacement for OSB, their adequacy in connection systems and capacities must be developed. This study establishes the connection capacity of LWPs, particularly when utilized as skins for structural insulated panels (SIPs). LWPs demonstrated an increase of 21%-40% when measuring mechanical properties needed for connection design, including density, nail withdrawal, head pullthrough, lateral resistance and dowel bearing. Using dowel bearing strength and withdrawal resistance, equivalent specific gravities of 0.57 and 0.43, respectively, were assigned. Further, by applying connection yield theory, analysis showed that LWPs have the potential for an 11% increase in connection yield capacity over OSB. v Eight single fastener connection scenarios were investigated and the methods of connecting LWPs around the perimeter of a SIP were evaluated. Using nails and to fasten through the full thickness of the panel was evaluated as well as partial panel fastening with nails only. In addition to strength capacity, connection methods were scored on cost, robustness, ease of installation and contribution to hygrothermal performance. Overall, both nailed and screwed connections proved sufficiently strong to use LWPs as skins for structural insulated panels.
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Details
- Title
- Mechanical connection properties and techniques for lightweight wood-strand sandwich panels
- Creators
- Richard Derek Ohlgren
- Contributors
- Donald A. Bender (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Civil and Environmental Engineering, Department of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; [Pullman, Washington] :
- Identifiers
- 99900525395301842
- Language
- English
- Resource Type
- Thesis