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  • Moisture effects on properties of wood-composite assemblies

    Creator:
    King, David
    Abstract:
    Engineered wood composites are used in many structural applications and are intended for dry use. However, these materials may encounter significant amounts of wetting while in service, which can lead to structural failures. This study combined aspects of wood science, mechanics, structural engineering, and mycology to assess changes in material...
    Resource Type:
    Masters Thesis
    Full Text:
    : Moisture content contour plots were developed using data points covering the entire shear wall face

  • Effects of reference displacement and damage accumulation in wood shear walls subjected to the CUREE protocol

    Creator:
    Langlois, Jeffrey D.
    Abstract:
    The objectives of this study are: (1) to evaluate the effect of reference displacement on wall behavior under fully reversed cyclic loading using the CUREE test protocol and (2) to assess damage accumulation (visible fastener damage and stiffness degradation) for the imposed drift levels. All tests were conducted on identical...
    Resource Type:
    Masters Thesis
    Full Text:
    LIST OF FIGURES Figure Page 1 Shear Wall Specimen 10 2 Load Frame and Shear Wall Specimen 12 3 Data

  • Hybridized framing to modify load paths and enhance wood shearwall performance

    Creator:
    Bultena, Sarah M.
    Abstract:
    Heavy timber framing relies primarily on bracing to withstand lateral loads due to earthquakes and wind events. Bracing configurations in heavy timber framed buildings vary widely and include cross bracing, knee bracing, and other geometries. Many heavy timber frames constructed during colonial American times are still standing, exceeding the expected...
    Resource Type:
    Masters Thesis
    Full Text:
    studs regularly spaced with wood structural panel sheathing attached to the wall frame. This assembly

  • Performance of partially and fully anchored wood frame shear walls under monotonic, cyclic and earthquake loads

    Creator:
    Seaders, Peter
    Abstract:
    The objectives of this study were to evaluate the performance of wood frame shear walls under monotonic, cyclic and earthquake loads by: (1) estimating the variability of shear wall performance, (2) comparing the performance of walls under each loading protocol, (3) evaluating the effects of anchorage on wall performance, and...
    Resource Type:
    Masters Thesis
    Full Text:
    variability of shear wall performance, (2) comparing the performance of walls under each loading protocol, (3

  • The effect of hold-down misplacement on the strength and stiffness of wood shear walls

    Creator:
    Lebeda, Dana J.
    Abstract:
    The objective of this study was to determine the effect of misplaced hold-downs on the static and cyclic behavior of wood shear walls. Three shear wall configurations were considered in this study. The first configuration (control) had hold-downs at the ends of the wall (wall type 1), the second configuration...
    Resource Type:
    Masters Thesis
    Full Text:
    - downs on the static and cyclic behavior of wood shear walls. Three shear wall configurations were

  • Strain distribution in OSB and GWB in wood frame shear walls

    Creator:
    Sinha, Arijit
    Abstract:
    The overall goal of this study was to gain an insight into the load sharing aspect between oriented strand board (OSB) and gypsum wall board (GWB) in shear wall assembly during racking load. More specifically the objectives of the study were to: (1) evaluate qualitatively the load sharing between OSB...
    Resource Type:
    Masters Thesis
    Full Text:
    into the load sharing aspect between oriented strand board (OSB) and gypsum wall board (GWB) in shear

  • A Methodological Approach for Structural Health Monitoring of Mass-Timber Buildings Under Construction

    Creator:
    Baas, Esther J.
    Abstract:
    As mass-timber building construction rises around the globe, there exists the need to verify the long-term, in-situ behavior and performance of these structural systems. Structural health monitoring (SHM), generally defined as a damage detection strategy consisting of a network of sensors, a data acquisition system, and algorithms for data analysis,...
    Resource Type:
    Masters Thesis
    Full Text:
    ) shear walls, displacements, rotations, and movements of cross-laminated timber shear walls, moisture

  • The effects of nail bending-yield stress and biological deterioration on the cyclic performance of shearwalls

    Creator:
    Anderson, Erin N.
    Abstract:
    Key parts of the lateral force resisting system in wood-frame buildings are the shearwafls and the connections. The connections in wooden buildings are the primary source of ductility and energy dissipation; these are essential properties when buildings are exposed to lateral forces, such as wind and earthquakes. Shearwall design is...
    Resource Type:
    Masters Thesis
    Full Text:
    moisture ingress proceeds down the wall and along the sill plate. The condition creates a plume of

  • The performance of wood frame shear walls under earthquake loads

    Creator:
    White, Kevin Bradish DelGrande
    Abstract:
    The overall goal of this study is to evaluate the earthquake performance of wood frame shear walls, and more specifically: (1) to compare the performance differences of fully and partially anchored walls under monotonic, cyclic, and earthquake loads, (2) to compare wall performance under earthquake loads with that of standardized...
    Resource Type:
    Masters Thesis
    Full Text:
    Performance 57 SHEAR WALL RESPONSE DUE TO A SEQUENCE OF EARTHQUAKE TESTS 58 Failure Modes 58 Performance

  • Optimizing the performance of gypsum wall board in wood frame shear walls

    Creator:
    Goodall, Scott I.
    Abstract:
    The overall goal of this project was to design a wood frame shear wall that could withstand greater displacement before damage occurred to the Gypsum Wall Board (GWB). More specifically, the objectives of the study were: (1) to evaluate damage to the GWB in alternative shear wall designs at 1%,...
    Resource Type:
    Masters Thesis
    Full Text:
    . Title: Optimizing the Performance of Gypsum Wall Board in Wood Frame Shear Walls Abstract