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  • Testing and Modeling of a Cross-Laminated Timber Pier-and-Spandrel Seismic Retrofit Solution for Unreinforced Masonry Buildings

    Creator:
    Engleson, Renee M.
    Abstract:
    Cross-laminated timber (CLT) is an attractive building material because it is renewable, promotes fast installation, and possesses a high strength-to-weight ratio. The use of CLT in seismic applications has become increasingly common with the development of post-tensioned CLT rocking wall lateral force resisting systems (LFRS). The CLT pier-and-spandrel system designed,...
    Resource Type:
    Masters Thesis
    Full Text:
    ......................................................................................................... 4 1.4 Organization of Thesis

  • Field verification of a mathematical model for the physical fate prediction of dredged material instantaneously disposed at sea

    Creator:
    Hollings, William H.
    Abstract:
    Dredged spoil plumes are monitored during nine hopper dredge disposal events in 186 foot water depths offshore near Coos Bay, Oregon. Position and solids volume concentration characteristics of the plumes are established. Computer simulations of the monitored events are executed using the WES modified version of the Koh-Chang instantaneous disposal...
    Resource Type:
    Masters Thesis
    Full Text:
    William H. Hollings III for the degree of Master of Science in Civil Engineering presented on September 1

  • On Undular Bores and Solitary Waves in Variable Depth

    Creator:
    Knowles, Jeffrey N.
    Abstract:
    Numerical results are presented using a higher-order pseudo-spectral method in order to solve the Zakharov-Craig-Sulem formulation of the Euler model. We study the effects of variable bathymetry on weakly-dispersive, weakly-nonlinear, shallow water waves. Improved predictions on wave amplitude and shoaling behavior are developed by analytical means in the context of...
    Resource Type:
    Dissertation
    Full Text:
    and Solitary Waves in Variable Depth Abstract approved: Harry H. Yeh Numerical experiments were

  • Tsunami Loading on Coastal Infrastructure

    Creator:
    Xie, Zhongliang
    Abstract:
    The safety of coastal infrastructure has been a concern after the Indian Ocean Tsunami in 2004 and the Great East Japan Tsunami in 2011. The western coast of the United States is also exposed to tsunami hazards due to the Cascadia subduction zone. Therefore, it is critical to design coastal...
    Resource Type:
    Dissertation
    Full Text:
    Comparison of Loading equations to PWRI G-4: H=3m and h=4m128 3.63 Comparison of Loading equations to PWRI B

  • Numerical response of concrete-lined tunnels crossing active faults

    Creator:
    Lange, Stephanie
    Abstract:
    A challenge for municipal authorities of growing urban areas is to provide larger and faster transportation and utility networks that are safe and resilient to significant disruptions after an earthquake event and other disasters. Urban regions, like the San Francisco Bay or the Los Angeles area, are situated in seismically...
    Resource Type:
    Dissertation
    Full Text:
    . . . . . . . . . 122 4 (a) to (f): Strains along tunnel alignment for DI = 6 m, h = 0.2 m, Lzone varies from (a) to (f

  • Evaluation of the torsion test for determining the shear strength of structural lumber

    Creator:
    Heck, Leanne Renee
    Abstract:
    The torsion test was evaluated as a method for determining the shear strength of full-size structural lumber. The evaluation involved an experimental length study, an experimental depth study, and a finite element study. The length study consisted of fifty nominal 2x4 specimens, ten specimens for each length, and ten American...
    Resource Type:
    Masters Thesis
    Full Text:
    . Abstract approved: Thomas H. Miller Abstract approved: Rakesh Gupta The torsion test was evaluated as a

  • Seismic performance of diagrid steel structures using single and double friction mass dampers

    Creator:
    Ramadhan, Garlan
    Abstract:
    The steel diagrid structural system is a recent load bearing and lateral resisting structural system for tall building structures that is relatively unexplored in the western United States. One possible reason for the little use of diagrid systems in earthquake prone regions is the lack of guidelines and application examples...
    Resource Type:
    Masters Thesis
    Full Text:
    Study ............................................................................. 36 CHAPTER 4

  • Evaluation of seismic response directional combination rules for existing plan irregular reinforced concrete buildings

    Creator:
    Hussain, Syed Baqir
    Abstract:
    In this thesis, the effectiveness of the 100 percent + XX percent seismic response directional combination rule available in codes and standards is evaluated using simulated nonlinear seismic response of two existing multi-story reinforced concrete plan-irregular buildings. The 5-story and 8-story buildings were designed according to the 1975 seismic codes...
    Resource Type:
    Masters Thesis
    Full Text:
    h h s d s           (2) 0 14 4 3 xh s         (3) The spacing

  • 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
    Full Text:
    Alam for the degree of Doctor of Philosophy in Civil Engineering presented on March 4, 2019. Title

  • 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