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Filtering by: Creator Burgett, D. Michael Remove constraint Creator: Burgett, D. Michael Academic Affiliation Civil and Construction Engineering Remove constraint Academic Affiliation: Civil and Construction Engineering Resource Type Masters Thesis Remove constraint Resource Type: Masters Thesis

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  • Regional and Site-Specific Vulnerabilities of the Western Power Grid from a M9.3 Cascadia Subduction Zone Earthquake

    Creator:
    Lathrop Eve D.
    Abstract:
    The likelihood of a Cascadia Subduction Zone (CSZ) earthquake is estimated between 37 to 42% in the next 50 years, leading to strong shaking, liquefaction, landsliding, and other seismic ground failure resulting in major impacts to critical lifelines such as the western power grid. Electrical power is essential for continued...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Eve D. Lathrop for the degree

  • Finite element modeling of gusset plate failure using OpenSees

    Creator:
    Walker, Andrew J.
    Abstract:
    The collapse of the I-35W Bridge in Minneapolis, MN in 2007 prompted an investigation into the design and inspection of the steel truss bridges. Further investigation into the collapse revealed that a gusset plate experienced sway buckling, causing the bridge failure. This bridge failure motivated research into the analysis and...
    Resource Type:
    Masters Thesis
    Full Text:
    Element Modeling of Gusset Plate Failure Using Opensees Abstract approved: Michael H. Scott

  • Bridge Model Parameter Sensitivity in Pushover and Nonlinear Time History Analysis

    Creator:
    Johnsohn, Karryn E.
    Abstract:
    The aim of this research is to understand and quantify the modeling differences between CSiBridge and OpenSees, and to determine sensitive model parameters. When designing bridges for the high seismic region of California, the California Department of Transportation (Caltrans) performs nonlinear time history analysis of their bridge models. For three-dimensional...
    Resource Type:
    Masters Thesis
    Full Text:
    Parameter Sensitivity in Pushover and Nonlinear Time History Analysis Abstract approved: Michael H. Scott

  • An Agent-Based Simulation for Emergency Warning Dissemination in a Multiplex Social Network

    Creator:
    Koll, Charles D.
    Abstract:
    The variety of natural disasters provide different sets of characteristics and properties with unique challenges. One significant difference between hazard types is prewarning lead time, the amount of time individuals have from a potential warning to the disaster occurring. Rapid onset disasters may not provide an official warning about a...
    Resource Type:
    Masters Thesis
    Full Text:
    ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.2.7 Prewarning Time Before Disaster (d

  • Roughness and geometry effects of engineered log jams on 1-D flow characteristics

    Creator:
    Valverde, Rachelle S.
    Abstract:
    The re-introduction of large woody debris (LWD) into streams and rivers for stream restoration purposes is rapidly growing. Engineered log jams (ELJs) are man-made structures intended to mimic natural LWD structures, designed and installed to protect stream banks from erosion while increasing habitat diversity. Several studies have evaluated the flow...
    Resource Type:
    Masters Thesis
    Full Text:
    Roughness and Geometry Effects of Engineered Log Jams on 1-D

  • The use of LiDAR to identify forest transportation networks

    Creator:
    Beck, Storm J. C.
    Abstract:
    The production of high value non-conventional products, such as long utility poles; or the production of low value bulky products, such as chips or grindings; provide opportunities for forest owners to increase value from their forests. The transport of these products requires the use of specialized trucks and trailers. However,...
    Resource Type:
    Masters Thesis
    Full Text:
    Use of LiDAR to Identify Forest Transportation Networks Abstract approved: John D

  • Assessing Seismic Rockfall Impacts on Mobility in Transportation Corridors

    Creator:
    Holtan, Katherine
    Abstract:
    The climate and geologic conditions of the Pacific Northwest leaves its roads highly susceptible to rockfall hazards. Rockfalls often occur on steep slopes that experience heavy rainfall, groundwater seepage, or strong shaking from earthquakes. The unpredictable nature of these events often creates substantial problems for communities, transportation infrastructure, and the...
    Resource Type:
    Masters Thesis
    Full Text:
    . Abstract approved: ________________________________________________________ Michael J. Olsen

  • Evaluation of straw wattle placement and surficial slope stability

    Creator:
    Rikli, Anthony M.
    Abstract:
    Straw wattles are common erosion control devices used to trap sediment. This thesis studies the relationship of straw wattles on slope stability through a case study demonstrating their use on steep slopes (1.5H:1V) for the US20 highway realignment project. Several surficial slope failures have occurred on these fill slopes, often...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: Michael J. Olsen Straw wattles are common erosion control devices used to trap

  • Investigation of Multi-constellation RTK GNSS Survey Productivity and Coordinate Accuracy

    Creator:
    Jamieson, Marian H.
    Abstract:
    This study evaluates the productivity and accuracy of surveys completed with single-base real-time kinematic (RTK) Global Navigation Satellite Systems (GNSS) using four different GNSS constellation combinations: (1) GPS-only, (2) GPS+GLONASS, (3) GPS+Galileo+BeiDou, and (4) GPS+GLONASS+Galileo+BeiDou. For this comparison, we set up a test site consisting of 20 stations ranging with...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: _____________________________________________________ Michael J. Olsen This study

  • Accuracy Evaluation of Real-Time GNSS Survey Observations

    Creator:
    Allahyari, Mahsa
    Abstract:
    Real time networks (RTNs) have become popular for Global Navigation Satellite System (GNSS) surveys because highly accurate positions can be derived in seconds to minutes compared to hours as required with static sessions. To evaluate the accuracy of these shorter-duration, RTN GNSS observations and their potential for use as a...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Michael J. Olsen Real time networks (RTNs) have become popular for Global Navigation