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Filtering by: Creator Castelao, R. M. Remove constraint Creator: Castelao, R. M. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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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:
    AN ABSTRACT OF THE THESIS OF Renee M. Engleson for the

  • Physical Modeling of Progressive Damage and Failure of Wood-Frame Coastal Residential Structures Due to Waves and Surge Forces

    Creator:
    Duncan, Sean M.
    Abstract:
    A physical model study was performed to examine the forces and response of 1:6 scale wood-frame coastal residential structures subjected to storm surge and waves. An on-grade and an elevated specimen were tested and exposed to regular waves with varying water depths and wave heights to simulate Hurricane Sandy’s conditions....
    Resource Type:
    Masters Thesis
    Full Text:
    = 1.10 m (star); h0 = 1.20 m (downward triangle); h0 = 1.30 m (upward triangle); h0 = 1.35 m (circle

  • Seismic Performance of Square Reinforced Concrete Columns Retrofitted with Titanium Alloy Bars

    Creator:
    Lostra, Mackenzie M. W.
    Abstract:
    Large numbers of reinforced concrete (RC) bridges were built in the past that are now considered seismically deficient. The structural members most likely to be considered deficient are the supporting columns. Typical deficient columns contain inadequate transverse reinforcement and poorly detailed lap splice lengths above the foundation. Insufficient lap splice...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: Christopher C. Higgins André R. Barbosa Large numbers of reinforced

  • Hybridized framing to modify load paths and enhance wood shearwall performance

    Creator:
    Bultena, Sarah M.
    Abstract:
    Heavy timber framing relies primarily on bracing to withstand lateral loads due to earthquakes and wind events. Bracing configurations in heavy timber framed buildings vary widely and include cross bracing, knee bracing, and other geometries. Many heavy timber frames constructed during colonial American times are still standing, exceeding the expected...
    Resource Type:
    Masters Thesis
    Full Text:
    1 AN ABSTRACT OF THE THESIS OF Sarah M. Bultena

  • Developing an analysis framework to compare commuter rail service and bus service in the Mid-Willamette Valley in Oregon

    Creator:
    Roholt, Ian M.
    Abstract:
    This thesis develops a framework for analyzing the application of commuter rail and bus services between several small urban centers to enhance overall connectivity. The study includes analyzing specific performance criteria for commuter rail service and express bus service based on data from existing systems around the U.S. The study...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Ian M. Roholt for the degree of Master of Science in Civil

  • Observational study of buffered bike lane design implementation of roadway bicycling in Portland, Oregon

    Creator:
    Rios, Elizabeth A.
    Abstract:
    Bicyclists are one of the highest and most vulnerable road users. This is due to the higher likelihood of being seriously injured when involved in a crash. This research seeks to understand two different behavioral interactions of an implemented facility user: the motorist (secondary user) and bicyclist (primary user). The...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: ______________________________________________________ Katharine M. Hunter-Zaworski

  • Early age performance of latex-modified concrete bridge deck overlays

    Creator:
    Sujjavanich, Suvimol
    Abstract:
    Environmental factors and physical properties of latex modified concrete (LMC) are hypothesized to contribute to early age cracking in bridge deck overlays. Cracking permits the ingress of moisture and aggressive solutions into the substrate and may contribute to other subsequent distresses. Understanding the material properties and mechanisms involved is necessary...
    Resource Type:
    Dissertation
    Full Text:
    m 513R-MODIFIED POLYMER- CEMENT RATIO. X 10 20 r. t. TOTAL PORE VOLUME. x10'2cm3/9 - 6.548

  • Modeling hydraulic dredge spoil fate

    Creator:
    Tseng, Ying-chuan
    Abstract:
    Hydraulic dredging is and most certainly will remain a primary means of maintaining and improving ship channels and for land reclamation in near-shore water. The study of which this thesis describes a part is intended to develop a method of predetermining the immediate disposition of sand spoils from hydraulic dredging...
    Resource Type:
    Masters Thesis
    Full Text:
    , Massachusetts, 1963. 2. Albertson, M. L. , Dai, Y. B. , Jensen, R. A. and Rouse, H. , "Diffusion of Submerged

  • Disposal of sandy pipeline dredge spoils by end dumping

    Creator:
    Pyles, Marvin Russell
    Abstract:
    Channel maintenance operations in the rivers and harbors of the United States annually require the disposal of over 320 million cubic meters of dredge spoils. As the availability of suitable land sites diminishes, open water disposal presents an attractive yet controversial alternative method. For open water disposal to be acceptable,...
    Resource Type:
    Masters Thesis
    Full Text:
    distance M = predicted model distance in m M' = dimensionless predicted model distance r V c radial

  • Evaluation of finite element techniques for soil reinforcement applications

    Creator:
    Berg, Ryan Robert
    Abstract:
    A literature review and a computer study are conducted to identify the requirements of finite element programs for the specific use of discrete analyses of reinforced soil structures. The utility of six commercially available programs are appraised with respect to the identified requirements. The results of the study are directed...
    Resource Type:
    Masters Thesis
    Full Text:
    ," developed by Professors L. R. Herrmann and K. M. Romstad of the University of California at Davis. This