Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Houjiang Zhang; Lei Zhu; Yanliang Sun; Xiping Wang; Haicheng Yan
    Date: 2011
    Source: Advanced materials research. Vol. 217-218 (2011): p. 407-412.
    Publication Series: Scientific Journal (JRNL)
    PDF: View PDF  (333.87 KB)

    Description

    During maintenance of ancient timber architectures, it is important to determine mechanical properties of the wood component materials non-destructively and effectively, so that degraded members may be replaced or repaired to avoid structural failure. Experimental materials are four larch (Larix principis-rupprechtii Mayr.) components, which were taken down from the drum-tower of Zhengjue Temple of Yuanmingyuan (Old Summer Palace), Beijing, China. The larch components were cut into standard specimens first, and then stress wave transmission times, resistograph and densities were tested. Product of resistograph and stress wave speed squared is defined as modulus of stress-resistograph. Comparing with the modulus of elasticity (MOE) of the specimens tested by the traditional bending test method, it is found that there is a linear relationships between the modulus of stress-resistograph and modulus of elasticity (MOE), and the correlation coefficients are 0.7111. In order to better evaluate the modulus of elasticity (MOE) with the modulus of stress-resistograph, 95% confidence regression lines are suggested to be used for the future calculation.

    Publication Notes

    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Zhang, Houjiang; Zhu, Lei; Sun, Yanliang; Wang, Xiping; Yan, Haicheng. 2011. Determining modulus of elasticity of ancient structural timber. Advanced materials research. Vol. 217-218 (2011): p. 407-412.

    Cited

    Google Scholar

    Keywords

    Ancient timber architecture component, modulus of elasticity, MOE, stress waves, resistographs, modulus of stress-resistograph, larch, elasticity, mechanical properties, bending, wood quality, flexure, nondestructive testing, wood defects, structural analysis, regression analysis, buildings, maintenance, wooden-frame buildings, wooden buildings, China, building materials, wood deterioration, historic buildings, building conservation, building restoration, Larix principis-rupprechtii, antiquities, ancient timber, structural timbers, log quality, bending strength, wood decay, wooden temple

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/39758