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    Author(s): Douglas R. Rammer; Philip Line
    Date: 2006
    Source: WCTE 2006 : 9th World Conference on Timber Engineering, August 6-10, 2006, Portland, OR, USA : program and abstracts. Portland, Or. : World Conference on Timber Engineering, [2006]: [8] pages.
    Publication Series: Miscellaneous Publication
    PDF: Download Publication  (2.4 MB)

    Description

    In the 2001 National Design Specifications® for Wood Construction (NDS), Appendix E was added to explicitly address wood failure mechanisms that may occur in fasteners. One approach to estimate design capacities for net section, row tear out, and group tear failure mechanisms is presented in Appendix E of the 2001 NDS. Since the 2001 NDS, efforts are being untaken to further develop the specification to include a possible splitting mechanism and to address the possible failure mechanisms for connections loaded perpendicular to the wood grain. This paper will discuss efforts to further develop the Appendix E expressions to include the splitting failure mechanisms and evaluate the effectiveness of Appendix E expressions to establish reliable design capacities for single and multiple bolted connections loaded parallel to the grain. This will be accomplished by comparing design expressions to select fastener research conducted worldwide over the last 70 years.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Rammer, Douglas R.; Line, Philip. 2006. Development of failure mechanisms for fasteners in the United States. WCTE 2006 : 9th World Conference on Timber Engineering, August 6-10, 2006, Portland, OR, USA : program and abstracts. Portland, Or. : World Conference on Timber Engineering, [2006]: [8] pages.

    Keywords

    Joints, fasteners, testing, standards, bolts, nuts, review article, failure, connectors, splitting, bolted joints

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