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  • 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 Damage State Detection Based on Strain-Based Wireless Structural Health Monitoring

    Creator:
    Slaven, Kelli R.
    Abstract:
    The Pacific Northwest is at risk for significant seismic and tsunami events, which are capable of severely damaging lifeline transportation infrastructure, particularly bridges. As the bridges in the United States age and begin to show signs of fatigue, the risk for severe damage increases. Proper monitoring and inspection of bridges...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Kelli R. Slaven for the

  • Evaluation of ground motion duration effects on the damage prediction of building and bridge structural and soil-structural systems

    Creator:
    Belejo, Andre
    Abstract:
    The role of ground motion duration on the seismic performance of civil engineering structures remains unclear. Thus, the role of earthquake strong ground motion duration is assessed in a three manuscript thesis, which includes: (1) assessment of the effects of ground motion duration on the seismic performance of a model...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ Andre R. Barbosa The role of ground motion duration on the seismic performance of

  • Coupled Eulerian-Lagrangian Finite Element Modeling Approach Applied to Wave Structure Interaction: Effects of Shielding, Channeling, and Wall Removal

    Creator:
    Al-Sayhood, Zeyad A.
    Abstract:
    The impact of tsunamis on coastal structures gained great a new impetus following the 2004 Indian Ocean Tsunami and the 2011 Tohoku earthquake and tsunami. While several experimental programs have been performed to gain a fundamental understanding, numerical models are needed to study additional features that cannot all be tested...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ Andre R. Barbosa The impact of tsunamis on coastal structures gained great a new

  • Post-Earthquake Performance Assessment of Steel Strongback Braced Frames

    Creator:
    Rhoades, Katharine
    Abstract:
    Traditional braced frames are an efficient and economic means of resisting seismic demands. However, braced frames are prone to story mechanisms, which can result in concentrations of demands and damage during seismic events. Including steel strongbacks in conjunction with traditional braced frames can mitigate story mechanisms. The SBF results in...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Michael Scott Committee Member, representing Civil Engineering

  • Behavior of open grid steel bridge decks under service and fatigue loads

    Creator:
    Fetzer, Peter C.
    Abstract:
    Open grid steel bridge decks have been in use for nearly a century. These open grid decks provide an economical and lightweight alternative to traditional reinforced concrete decks. As the transportation infrastructure continues to deteriorate, open grid decks can be used as a cost effective way to rehabilitate structurally deficient...
    Resource Type:
    Masters Thesis
    Full Text:
    committee members Dr. Michael Scott, Dr. John Gambatese, and Dr. Andrew Meigs. I would also like to thank

  • Crack Penetration and Deflection Behavior at Interfaces

    Creator:
    Alam, Mahabub
    Abstract:
    This study computationally and experimentally examines the mechanisms of crack penetration, deflection and the transition between penetration and deflection. The finite element analysis based computational modeling work used strength-and-energy based cohesive-zone approach to study the effect of dimensionless parameters (e.g., interfacial incident angle, fracture-length scale, and normalized toughness) on penetration/deflection...
    Resource Type:
    Dissertation
    Full Text:
    fracture-length-scale (EΓi/σi2R=EΓm/σm2R=EΓ/σ2R), and showing agreement with LEFM based results for three

  • Influence of diagonal cracks on negative moment flexural anchorage performance in reinforced concrete bridge girders

    Creator:
    Goodall, Joshua K.
    Abstract:
    Large numbers of vintage reinforced concrete deck-girder bridges remain in the national bridge inventory. Many of these exhibit diagonal cracking and other distress. Due to the design practices of the time, it is common to observe cracks at locations where flexural reinforcing steel is terminated along the span. The presence...
    Resource Type:
    Masters Thesis
    Full Text:
    help in every facet of the research process. Undergraduates Eric Goodall, Anthony Peressini, Scott

  • Practical Design Considerations for Steel Slit Panel Frames

    Creator:
    Parikh, Madhav
    Abstract:
    Steel Slit Panel Frames (SSPFs) are an innovative and resilient lateral force resisting system. Steel Slit Panels (SSPs) are bolted to the beams and act as replaceable seismic fuses, dissipating energy through flexural yielding in links between vertical rows of slits. SSPFs have shown promise as a lateral force resisting...
    Resource Type:
    Masters Thesis
    Full Text:
    models has been instrumental to this project. I am very thankful to Dr. Michael Scott for sharing his

  • Visualization and design systems for road infrastructure

    Creator:
    Esch, Gregory
    Abstract:
    Transportation infrastructure provides a vital service for the functionality of a city. The efficient design of road networks poses an interesting topic in computer science for digital content developers. For civil engineers, the visualization of analysis results on infrastructure both efficiently and intuitively is crucial. The following contributions are made...
    Resource Type:
    Masters Thesis
    Full Text:
    visualization, I would like to thank Eugene Zhang and Michael Scott. Without Michael, the bridge visualization