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Filtering by: Creator Wilder, Benjamin T. Remove constraint Creator: Wilder, Benjamin T. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • Tsunami-induced Soil Instability

    Creator:
    Fischer, Rachael Marie
    Abstract:
    Recent tsunami field surveys from the 2011 Great East Japan Earthquake and Tsunami have recorded numerous examples of tsunami-induced soil instability: significant scour around foundations, foundation failure of piles, and other damage caused by liquefaction. From the observations of soil instability leading to the failure of critical coastal structures, it...
    Resource Type:
    Masters Thesis
    Full Text:
    Instability Abstract approved: H. Benjamin Mason Recent tsunami field surveys from the 2011 Great East

  • Adjacent structure response sensitivity to seismic events using the direct differentiation method

    Creator:
    White, William S.
    Abstract:
    The response of adjacent structural systems to earthquake motions is investigated using the finite element framework OpenSees. Results of sensitivity analyses demonstrate that structural response quantities can increase in either or both of the adjacent structures for specific configurations. The structural models used include steel moment-resisting frames and rigid shear...
    Resource Type:
    Masters Thesis
    Full Text:
    . Benjamin Mason The response of adjacent structural systems to earthquake motions is investigated using

  • Simple Moving Averages: A Ten-Year Test

    Creator:
    Wilder, Eric M.
    Abstract:
    The intent of this thesi s is to prove whether or not simple moving averages can be used to predict the future price performance of stocks and outperform the buy-and-hold method of investing in the stock market. The importance of this research is that if moving averages can predict future...
    Resource Type:
    Honors College Thesis
    Full Text:
    Averages: A Ten-Year Test by Eric M. Wilder A Project Submitted to Oregon State

  • Pore Water Pressure Response in Soil During Tsunami Loading : Numerical Formulation and Experimentation

    Creator:
    Abdollahi, Abbas
    Abstract:
    Tsunami loading can cause sediment instability, which can compromise the structural integrity of coastal buildings and infrastructure. To understand the process by which a tsunami can cause sediment instability, it is necessary to understand how the pore water pressure in the soil changes during tsunami loading. Tsunami run-up causes the...
    Resource Type:
    Dissertation
    Full Text:
    approved: H. Benjamin Mason Tsunami loading can cause sediment instability, which can compromise the

  • Soil-bridge interaction during long-duration earthquake motions

    Creator:
    Romney, Kyle T.
    Abstract:
    Earthquake engineering analyses are often performed using shallow, crustal earthquake motions (e.g., 1940 El Centro). However, large areas of the world are subject to subduction zone earthquake motions (e.g., the Pacific Northwest). A subduction zone earthquake motion is characterized by its long duration (e.g., strong shaking lasts for more than...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Kyle T Romney for the degree

  • Coastal Soil and Structure Behavior during Earthquake-Tsunami Multi-Hazards

    Creator:
    Qiu, Yingqing
    Abstract:
    Coastal multi-hazards, i.e., earthquakes followed by tsunamis, induce severe damage to coastal infrastructure. The multi-hazards can cause soil liquefaction, which is one of the major concerns for evaluating sediments transport potential and structure failure mechanisms. The objectives for this work is threefold. First, to build and validate a soil numerical...
    Resource Type:
    Dissertation
    Full Text:
    and Structure Behavior during Earthquake-Tsunami Multi-Hazards Abstract approved: H. Benjamin Mason

  • Near-Surface Response of Beach Sand : An Experimental Investigation

    Creator:
    Adams, Rachel Katie
    Abstract:
    The near-surface region of a coastal sediment bed is complex and dynamic. At some sites, near-surface sediment deposits are susceptible to extreme events, such as tsunamis or other large overflows, which induce high shear stresses on the sediment bed. The specific properties of sediment beds subjected to such extreme loading...
    Resource Type:
    Masters Thesis
    Full Text:
    Response of Beach Sand: An Experimental Investigation Abstract approved: H. Benjamin Mason Keywords

  • Multi-hazard framework and analysis of soil-bridge systems : long duration earthquake and tsunami loading

    Creator:
    Carey, Trevor J.
    Abstract:
    During the 2011 Great East Japan Earthquake and Tsunami, numerous bridge structures were damage or destroyed. The damage to bridge systems was caused by long duration strong ground shaking, tsunami inundation forces, or both. Long duration strong ground shaking from subduction zone earthquakes and the multi-hazard scenario of combined earthquake...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: H. Benjamin Mason André R. Barbosa During the 2011 Great East Japan Earthquake and Tsunami

  • Blast-induced liquefaction : observational estimation of vibration, settlement and residual pore water pressure

    Creator:
    Kato, Kengo
    Abstract:
    The blast technique has been used as an effective soil improvement method to compact loose coarse-granular soils since 1930s, and the use of the blast technique is extended as an application of in-situ liquefaction testing to investigate the performance of full scale foundations and countermeasures against liquefaction in recent decades....
    Resource Type:
    Dissertation
    Full Text:
    : _____________________________________________________________________ Scott A. Ashford and H. Benjamin Mason The blast technique has been used as an

  • An Efficient Workflow and Accuracy Assessment for ICESat-2 and Multispectral Imagery Fusion for Bathymetric Mapping

    Creator:
    Babbel, Benjamin J.
    Abstract:
    Interest in mapping bathymetry from multispectral satellite imagery has grown steadily since the 1970s. Notwithstanding the significant advancements made during this time, one limitation is that the group of algorithms collectively referred to as Satellite Derived Bathymetry (SDB) generally require “seed depths,” hindering their use for areas lacking reliable reference...
    Resource Type:
    Masters Thesis
    Full Text:
    Benjamin J. Babbel for the degree of Master of Science in Civil Engineering presented on May 27, 2020