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  • Unsaturated Soils and Foundation Design : Theoretical Considerations for an Effective Stress Framework

    Creator:
    Baker, Josiah D.
    Abstract:
    This study presents the theoretical background necessary to model the bearing capacity of shallow and deep foundations in partially saturated soils. The conventional bearing capacity equations for shallow and deep foundations and the 𝛽-method for deep foundation side resistance have been modified to include the effects of matric suction and...
    Resource Type:
    Masters Thesis
    Full Text:
    ....................................................................................................58 LIST OF FIGURES (CONTINUED) Figure Page Figure 4-3. Measured

  • Evaluation of remediation techniques for circular holes in the webs of wood I-joists

    Creator:
    Polocoser, Tiberiu
    Abstract:
    The objective of this project was to evaluate methods to remediate a wood I-joist with a single, circular hole in the web while leaving utilities in place. The methods were experimentally evaluated with a full-scale bending test using four equally spaced point loads. There were three depths of joists with...
    Resource Type:
    Masters Thesis
    Full Text:
    hole was 49% for the long span and 58% for the short span. The OSB collar was not as effective in

  • An investigation into the role of spatial variability on liquefaction consequence severity

    Creator:
    Cary, John R.
    Abstract:
    During the Canterbury Earthquake Sequence (CES) in Christchurch, NZ, an estimated $15B in damages occurred due to liquefaction-induced phenomena, illustrating the importance of understanding site-specific responses to seismic ground motions, as well the importance of accurately predicting liquefaction severity. One potential method for improving the understanding of how a site...
    Resource Type:
    Masters Thesis
    Full Text:
    and thin-layer corrected CPT measurements (qt and fs) to develop random field model (RFM

  • Behavior of a 1/6th scale, two-story, wood framed residential structure under surge wave loading

    Creator:
    Wilson, Jebediah
    Abstract:
    The goal of this study was to develop an understanding of the nature of surge wave loading on wood framed residential structures for a variety of building configurations and test conditions. The objectives of the study were: (1) to measure forces on a 1/6th scale wood framed residential structure, (2)...
    Resource Type:
    Masters Thesis
    Full Text:
    of Honolulu Building Code. FS = 4.5·ρ·g·h2 (3) Comparing predicted/measured force data with

  • Mass transport in laboratory water wave flumes

    Creator:
    Kim, Tae In
    Abstract:
    A complete solution, exact to second-order, for wave motion forced by a hinged-wavemaker of variable-draft is presented. A solution for a piston type wavemaker is also obtained as a special case of a hinged-wavemaker with negative infinite draft. The existing Stokes inviscid theories for mass transport is extended to include...
    Resource Type:
    Dissertation
    Full Text:
    58% (20%) of the value in an open flume for waves with the steepness parameter H/Lo = 0.02 (0.14) at

  • Influence of Uncertainties in Terrestrial Laser Scanning on Structural Reliability and Bridge Load Rating

    Creator:
    Loving, Carly K.
    Abstract:
    To ensure the safety of the nation’s bridges, the National Bridge Inspection Standards (NBIS) require all bridges to undergo routine load rating analyses to assess their structural capacity. Accurate geometric information for each structure is necessary for load rating analyses. This information is typically ascertained from as-built plans. Still, when...
    Resource Type:
    Masters Thesis

  • Limit Equilibrium-Based Assessment of the Internal Stability of Geosynthetic Reinforced Soil Structures Subject to Seismicity

    Creator:
    Loving, Carly K.
    Abstract:
    Design of Geosynthetic-Reinforced Soil Structures (GRSS) require sufficient rear pullout anchoring capacity in order to maintain internal stability. Length requirements are amplified when reinforcement coverage ratios or seismicity is considered, potentially resulting in uneconomical GRSS design lengths. This study describes the influence of reinforcement length, coverage ratio, and pseudostatic seismic...
    Resource Type:
    Honors College Thesis
    Full Text:
    Friction ϕ’ 34° Cohesion C 0 Height of Wall H 5m Surcharge - 0 Factor of Safety FS 1

  • Experiments on cable strumming and flow induced drag

    Creator:
    Barnes, Bert Lee
    Abstract:
    Short non-flexible elements of cable were driven harmonically in water while constrained by springs. The cable elements were observed to oscillate at approximately the Strouhal vortex shedding frequency. Damped resonance occurred near the point where the natural frequency and the Strouhal vertex shedding frequency were equal. Transverse oscillation amplitudes greater...
    Resource Type:
    Masters Thesis
    Full Text:
    1.00 1.20 1.40 1.60 1.80 2.00 FREOUENCY RATIO, friy/fs FIGURE 4. Peak-to-peak oscillation amplitude

  • Simplified stability assessment for low volume road cut and fill slopes

    Creator:
    Pratt, Randy C.
    Abstract:
    Many miles of roads are built in the Pacific Northwest Forests to provide access for logging and fire protection. Logging roads often cross steep mountainous terrain. Logging roads and the associated cut and fill slopes represent a discontinuity in the natural stress state in the soil mantle. These conditions result...
    Resource Type:
    Masters Thesis
    Full Text:
    WATER 57 Introduction 57 Precipitation 57 Vegetation 58 Topography 60 Subsurface Conditions 62 Ground

  • Stability of heterogeneous and anisotropic slopes determined by the compound logarithmic spiral limit equilibrium method

    Creator:
    Stockton, Ezra J.
    Abstract:
    The logarithmic-spiral (log-spiral) limit equilibrium procedure for slope stability analysis rigorously satisfies both force and moment equilibrium with a failure surface geometry formulated as a function of the soil’s angle of internal friction. Within the framework of limit equilibrium, this procedure has, in the past, been primarily limited to homogeneous...
    Resource Type:
    Masters Thesis
    Full Text:
    axis) ............................................................... 58 Figure 3.14. Stability