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Filtering by: Creator Nicholas, Benjamin P. Remove constraint Creator: Nicholas, Benjamin P. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • 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

  • 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

  • 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

  • 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

  • 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:
    during Long-Duration Earthquake Motions Abstract approved: H. Benjamin Mason André R. Barbosa

  • 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

  • Direction, method, and model for implementing design for construction worker safety in the US

    Creator:
    Tymvios, Nicholas
    Abstract:
    The construction industry employs about 7% of the total US workforce, and yet it accounts for 15.7% of all occupational fatalities. Specifically in 2011, there were 721 deaths in construction, second only to transportation with 733. The cause of a large number of these construction deaths can be attributed to...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Nicholas Tymvios for the degree of Doctor of Philosophy in

  • Radiometric Calibration of EAARL‐B Bathymetric Lidar Data

    Creator:
    Wilson, Nicholas C.
    Abstract:
    The Experimental Advanced Airborne Research Lidar ‐ B (EAARL‐B), which was built and deployed by the U.S. Geological Survey (USGS) in 2014, is a novel topographic‐bathymetric lidar system. While retaining a number of features that were pioneered in the original National Aeronautics and Space Administration (NASA) EAARL system (e.g., low...
    Resource Type:
    Masters Thesis
    Full Text:
     THE THESIS OF    Nicholas C. Wilson for the degree of Master of Science in Civil Engineering

  • The philosophies of leadership, management, and authority : how they’re different, and why we so often get it wrong

    Creator:
    Sundberg, Benjamin J.
    Abstract:
    Recent studies have shown that there is a significant amount of dissatisfaction and stress associated with finances, job security, and work. There are many health related consequences that manifest in response to this continual stress that we experience in our professional lives. These include obesity, high blood pressure, high cholesterol,...
    Resource Type:
    Honors College Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Benjamin J. Sundberg for the

  • 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

  • Mapping Nearshore Bathymetry with Spaceborne Data Fusion and State Space Modeling

    Creator:
    Forfinski-Sarkozi, Nicholas A.
    Abstract:
    Despite numerous techniques for measuring and estimating water depth, bathymetry in the nearshore zone is notoriously difficult to map. Dangerous sea states, noisy environmental conditions, and expensive survey operations, particularly in remote areas, contribute to the difficulties of obtaining data along the coast. Global datasets, derived mainly from satellite altimetry...
    Resource Type:
    Dissertation
    Full Text:
    OF THE DISSERTATION OF Nicholas A. Forfinski-Sarkozi for the degree of Doctor of Philosophy in

  • Evaluation of Topography and Seismicity on Shallow Landslide Susceptibility

    Creator:
    Hess, Daniel M.
    Abstract:
    Shallow landslides are a prevalent concern in mountainous regions that can result in severe societal, economic, and environmental impacts. The challenge is further compounded as the size and location of a potential slide is often unknown. This study presents a generalized approach for the evaluation of shallow landslide susceptibility using...
    Resource Type:
    Masters Thesis
    Full Text:
    analysis, and editing, while Dr. Michael Olsen and Dr. H. Benjamin Mason provided guidance that helped

  • Reducing Centerline Rumble Strips Effects on Pavement Performance

    Creator:
    Weaver, Joshua D.
    Abstract:
    Centerline rumble strips (CLRS) have proven to be a cost-effective safety measure in reducing lane departure crashes. However, there are often unintended consequences associated with the installation of CLRS, particularly in rural mountainous areas or snow zones. These consequences include the accumulation of water and ice on the roadway and...
    Resource Type:
    Masters Thesis
    Full Text:
    to thank Dr. Jason Ideker, Dr. Chris Parrish, and Dr. Benjamin Adam for their support as members of

  • Observations and Modeling of Shear Reduction and Sediment Flux within Vegetated Canopies on Managed Coastal Dunes

    Creator:
    Dickey, John
    Abstract:
    Wind flow on vegetated coastal foredunes adapts to the local canopy drag, resulting in spatial gradients in bed shear stresses which contribute to the formation of localized bedforms (e.g., nebkha, shadow dunes). Numerous morphological properties of the plants, including canopy height and density, affect the wind flow dynamics and therefore...
    Resource Type:
    Masters Thesis
    Full Text:
    Casper, 2018; Charbonneau et al., 2021; P. A. Hesp, 1981; Hesp et al., 2019). Numerical models have

  • Development of an ACIP pile-specific load-displacement model

    Creator:
    Adami, Nasim
    Abstract:
    Augered cast-in-place piles, also known as ACIP piles, have been used for more than seven decades in the United States and have gained in popularity due to their relatively quick installation and cost-effectiveness. Owing to the reduced impact on the neighboring environment as compared to some other deep foundation installation...
    Resource Type:
    Masters Thesis
    Full Text:
    displacement P Load, changing value along the pile Relative soil-pile movement Bias ̅ Mean bias

  • Ultimate and serviceability limit state reliability-based axial capacity of deep foundations

    Creator:
    Reddy, Seth C.
    Abstract:
    Deep foundations are necessary for the construction of many structures, such as bridges and buildings, located in areas unsuitable for shallow foundations. Owing to the inherent variability of soil and the complex changes that occur in the soil adjacent to deep foundations as they are installed, the ability to accurately...
    Resource Type:
    Dissertation
    Full Text:
    of my research committee including Dr. H. Benjamin Mason, Dr. T. Matthew Evans, Dr. Michael Olsen

  • Shear reinforcement effects of discrete columns in liquefiable soils

    Creator:
    Rayamajhi, Deepak
    Abstract:
    Discrete columns, such as stone and soil-cement columns, are often used to improve the liquefaction resistance of loose sandy ground. In particular, stone columns are considered to increase resistance potential by densification, drainage, and reinforcement mechanisms. For silty soil, the shear stress reduction resulting from the reinforcing effect of stiffer...
    Resource Type:
    Dissertation
    Full Text:
    , Dr. Armin W. Stuedlein, Dr. Michael H. Scott, Dr. H. Benjamin Mason, and Dr. Michelle C. Odden (GCR

  • In-plane Creep Behavior of Cross-laminated Timber and Mass Plywood Panels: A Methodology to Evaluate the Long-term Performance of Post-Tensioned Mass Timber Walls

    Creator:
    Longman, Ryan P.
    Abstract:
    Post-tensioned (PT) self-centering shear walls were designed to reduce structural damage from seismic activity. However, these lateral force resistant systems experience post-tension loss negatively affecting the re-centering capability due to delayed deformations experienced by engineered wood products over time. The long-term mechanical response of mass-timber panels to in-plane PT loads...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Ryan P