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Filtering by: Creator Johnson, Colin P. Remove constraint Creator: Johnson, Colin P. Committee Member Scott, Michael H. Remove constraint Committee Member: Scott, Michael H. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • Effect of subduction zone earthquakes on SDOF bridge models

    Creator:
    Long, Yicheng
    Abstract:
    Current bridge design codes do not account for the effects of duration of mega-thrust subduction zone earthquakes. Furthermore, codes and even recent performance-based design methodologies only make use of the peak response quantities (forces, displacements, and ductility demands) and do not account for the increased number of inelastic cycles that...
    Resource Type:
    Masters Thesis
    Full Text:
    are studied. Effects of P-Delta are also investigated. Four measures of seismic demand are assumed

  • 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:
    conductivity is the most sensi- tive and uncertain parameter in the u − p form of Biot’s equation — a well

  • Design and environmental performance of near-surface mounted carbon fiber reinforced polymer strips for shear strengthening reinforced concrete bridge girders

    Creator:
    Goebel, Jacob Hans
    Abstract:
    During the interstate expansion of the 1950s, many conventionally reinforced concrete deck girder bridges were built throughout the country. These now vintage bridges commonly exhibit diagonal cracking and rate inadequately for shear, thus they are candidates for shear strengthening to extend their useful life. Near-surface mounted (NSM) retrofitting is a...
    Resource Type:
    Masters Thesis
    Full Text:
    co-workers, including: Brandon Johnson, Mary Ann Triska, Tugrul Turan, Michael Dyson, Thomas

  • Numerical Studies on Fluid-Structure Interaction and Applications

    Creator:
    Chen, Ming
    Abstract:
    Fluid-structure interaction (FSI) has been of significant research interest worldwide over the past several decades because of its variety of applications in both offshore and coastal engineering. Researchers analyzing FSI systems rely heavily on experimental tests in model scale in laboratories or large-scale sea trials. However, these tests are often...
    Resource Type:
    Dissertation
    Full Text:
    . Coefficients used in the allometric relationships (Denny et al., 1997 p. 3172

  • Examination of lateral stiffness and strength of pitched residential roof diaphragms with implications for seismic design.

    Creator:
    Kirkham, William J.
    Abstract:
    There are about 80 million single-family dwellings (SFD) in the United States, predominantly of wood-frame construction. Of these, 68% are owner occupied. A home is typically the largest single investment of a family, and is often not covered by earthquake insurance, even where it is available. Of all SFD in...
    Resource Type:
    Dissertation
    Full Text:
    or roof diaphragms, however, there is very limited research on pitched roof diaphragms (Johnson and

  • Numerical modeling of full-coupled fluid-structure interaction

    Creator:
    Yuk, Dongjun
    Abstract:
    A numerical model for the simulation of fully-coupled fluid-structure interaction is developed in this study. In modeling the fluid, the Reynolds Averaged Navier-Stokes equations are solved for an incompressible viscous fluid field and a k-ε model is employed for turbulence computations. Hydrodynamic forces obtained by the integration of the fluid...
    Resource Type:
    Dissertation
    Full Text:
    . References Enet, F., Gnlli, S.T. and Watts, P. 2003. Laboratory experiments for tsunamis generated

  • A numerical wave tank based on coupled potential flow-viscous flow model

    Creator:
    Zhang, Yi
    Abstract:
    In this study, a coupled potential flow-viscous flow model is used for numerical wave tank simulation. The solver satisfies all the requirements for such a simulation environment. The coupling scheme is based on a non-overlapping heterogeneous domain decomposition method. In this method, the flow domain consists of two subdomains. In...
    Resource Type:
    Dissertation
    Full Text:
    Poisson equation, is given by Brezzi and Johnson (16). For BEM–FEM coupling in the context of the domain

  • Probabilistic Multi-hazard Earthquake-Tsunami Structural Risk Assessment Framework

    Creator:
    Alam, Mohammad Shafiqual
    Abstract:
    Catastrophic earthquake and tsunami events that resulted in significant loss of life and property over the past two decades have raised the global awareness regarding the need to understand the response of communities and their built environment to multi-hazard extreme events. In recognition to this impending threat to the coastal...
    Resource Type:
    Dissertation

  • Elevated Temperature Effects on the Shear Performance of a Cross-Laminated Timber (CLT) Wall-to-Floor Bracket Connection

    Creator:
    Mahr, Kolton J.
    Abstract:
    Connections in mass timber structural systems dissipate energy and transfer lateral forces from mass timber elements such as shear walls and diaphragms, providing critical load paths. Cross-laminated timber (CLT) is a prominent mass timber material used to manufacture wall and floor assemblies. Fire performance research of CLT walls and floors...
    Resource Type:
    Masters Thesis
    Full Text:
    shear walls using the FEMA P-695 (2009) methodology. When completed, the SPFs will be available for

  • Autogenous deformation and chemical shrinkage of high performance cementitious systems

    Creator:
    Fu, Tengfei
    Abstract:
    In the past ten years, renewed research interest has shown the benefits of internal curing by incorporating saturated lightweight fine aggregate (LWFA) in high performance concrete (HPC). As a result, the technology of internal curing has steadily progressed from laboratory studies to field applications. To determine the optimum LWFA content,...
    Resource Type:
    Masters Thesis
    Full Text:
    Johnson, for such a pleasant grad school experience. And a special thanks to Oregon Department of