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Filtering by: Creator Letchworth, Christopher A. Remove constraint Creator: Letchworth, Christopher A. Committee Member Higgins, Christopher Remove constraint Committee Member: Higgins, Christopher

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  • Large-scale laboratory observations of wave forces on a highway bridge superstructure

    Creator:
    Bradner, Christopher
    Abstract:
    The experimental setup and data are presented for a laboratory experiment conducted to examine realistic wave forcing on a highway bridge superstructure. The experiments measure wave conditions along with the resulting forces, pressures, and structural response of a 1:5 scale, reinforced concrete model of a typical section of the I-10...
    Resource Type:
    Masters Thesis
    Full Text:
    Observations of Wave Forces on a Highway Bridge Superstructure by Christopher Bradner A

  • Fluid Structure Interaction for Cascading Seismic and Tsunami Events using Real-Time Hybrid Simulation

    Creator:
    Neumann, Christopher R.
    Abstract:
    While real-time hybrid simulation has been utilized for structures subjected to seismic events for decades, its use in fluid-structure interaction problems is still a novel endeavor. Gathering data for cascading seismic and tsunami events is difficult due to space constraints in existing experimental facilities, complications regarding the application of scaling...
    Resource Type:
    Masters Thesis
    Full Text:
    -Time Hybrid Simulation by Christopher R. Neumann A THESIS submitted to

  • Reactivity Testing of Waterglass and the Investigation into an Alternative Binder Enhanced with Cellulose Nanocrystals

    Creator:
    McAlexander, Melissa
    Abstract:
    Most of the concrete in the world is produced using hydraulic cement (ordinary portland cement, OPC) and siliceous or alumino-siliceous supplementary cementitious materials (SCM). Due to the shift in focus toward environmental sustainability within the construction industry, alkali-activated cementitious systems (AAC) have gained significant attention to reduce the carbon footprint...
    Resource Type:
    Masters Thesis
    Full Text:
    more feasible in more cases. Sodium silicate is a potential SCM that has not been explored as a

  • Seismic performance of a pile-supported container wharf structures in rockfill

    Creator:
    Kawamata, Yohsuke
    Abstract:
    Recently, the concept of performance based design has become popular for many types of structures, including port facilities under seismic loading. For the case of pile-supported wharves, the level of performance is generally estimated using the displacement capacity of the structure. Therefore, understanding soil-pile interaction is one of the most...
    Resource Type:
    Dissertation
    Full Text:
    Pile-supported Container Wharf Structures in Rockfill Abstract approved: Scott A. Ashford

  • 3-D finite element modeling in OpenSees for bridge live-load girder distribution factors

    Creator:
    Scoggins, Luke A.
    Abstract:
    A generalized, three-dimensional, finite element bridge model was created in order to efficiently and accurately assess live-load girder distribution factors for a variety of bridge types. This model shortens the time required by bridge analysts to develop individual finite element models for bridges of varying geometries. The creation of the...
    Resource Type:
    Masters Thesis
    Full Text:
    OF Luke A. Scoggins for the degree of Master of Science in Civil Engineering presented on June

  • Development of a guideline for estimating tsunami forces on bridge superstructures

    Creator:
    Boon-intra, Sutaporn
    Abstract:
    Infrastructures along the Oregon Coast are vulnerable to seismic events in the Cascadia Subduction Zone that could generate large tsunamis. Bridges along the coast are an important part of the transportation and lifeline system in the area. The major damages on these bridges due to earthquake and/or tsunami would result...
    Resource Type:
    Masters Thesis
    Full Text:
    Title: Development of a Guideline for Estimating Tsunami Forces on Bridge Superstructures Abstract

  • (Mis)representation & Postcolonial Masculinity : The Origins of Violence in the Plays and Films of Martin McDonagh

    Creator:
    Evans, Nicolas M. J.
    Abstract:
    This thesis examines the postmodern confrontation of representation throughout the oeuvre of Martin McDonagh. I particularly look to his later body of work, which directly and self-reflexively confronts issues of artistic representation & masculinity, in order to gain a more nuanced understanding of his earliest and most controversial plays. In...
    Resource Type:
    Masters Thesis
    Full Text:
    issues of artistic representation & masculinity, in order to gain a more nuanced understanding of his

  • 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:
    validate OpenSees as a modeling tool, mode shapes and pushover results in OpenSees were compared to

  • Internal curing of high-performance concrete for bridge decks

    Creator:
    Deboodt, Tyler
    Abstract:
    High performance concrete (HPC) provides a long lasting, durable concrete that is typically used in bridge decks due to its low permeability, high abrasion resistance, freeze-thaw resistance and strength. However, this type of concrete is highly susceptible to the deleterious effects of both autogenous and drying shrinkage. Both types of...
    Resource Type:
    Masters Thesis
    Full Text:
    H. Ideker High performance concrete (HPC) provides a long lasting, durable concrete that is

  • Fatigue and fracture of bulk metallic glasses : role of free volume

    Creator:
    Launey, Maximilien E.
    Abstract:
    Deformation of metallic glasses requires the existence of free volume to allow atomic movement under mechanical loading. Accordingly, the present research seeks to understand how free volume variations in alloys of identical compositions affect the fatigue and fracture behavior. By annealing below the glass transition temperature, the free volume of...
    Resource Type:
    Dissertation
    Full Text:
    annealing below the glass transition temperatur the free volume of a Zr-based bulk metallic glass was