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    Author(s): R.W. Wolfe; Monica McCarthy
    Date: 1989
    Source: Res. Pap. FPL-RP-492. Madison. WI: U.S. Department of Agriculture. Forest Service. Forest Products Laboratory: 41 pages.
    Publication Series: Research Paper (RP)
    Station: Forest Products Laboratory
    PDF: View PDF  (1.9 MB)

    Description

    The first report of a three-part series that covers results of a full-scale roof assemblies research program. The focus of this report is the structural performance of truss assemblies comprising trusses with abnormally high stiffness variability and critical joint strength. Results discussed include properties of truss members and connections. individual truss stiffness and strength. and the structural performance of two full-scale truss roof assemblies. Findings support the use of linear models to predict the behavior of trusses used in residential roof assemblies. linear superposition models to characterize assembly load disbursement. and use of a load sharing increase factor to adjust individual truss load capacity when used in a repetitive member assembly.

    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

    Wolfe, R.W.; McCarthy, Monica. 1989. Structural performance of light-frame roof assemblies. I, Truss assemblies designed for high variability and wood failure. Res. Pap. FPL-RP-492. Madison. WI: U.S. Department of Agriculture. Forest Service. Forest Products Laboratory: 41 pages.

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    Keywords

    Roof assembly, Fink truss, truss plate connections, superposition, assembly performance, construction technology, structural timbers, Pinus, structural design, stresses, structural components, trusses, assembly performance, light frame construction

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