Search Constraints

Start Over
Filtering by: Creator Wright, Robert O. Remove constraint Creator: Wright, Robert O. Academic Affiliation Civil, Construction, and Environmental Engineering Remove constraint Academic Affiliation: Civil, Construction, and Environmental Engineering Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

Search Results

  • FATE group decision support system in transportation decision making

    Creator:
    Taekratok, Thaweesak
    Abstract:
    Two interesting challenges have been created in the traditional transportation planning process through recent adoption of more interactive roles by Federal, State and local transportation agencies and of those representing the communities being impacted by proposed transportation projects. First, the decision-making groups that formerly included solely transportation and related professionals...
    Resource Type:
    Dissertation

  • Wood materials and shearwalls of older light-frame residential structures

    Creator:
    Carroll, Cameron T.
    Abstract:
    Light-frame construction practices and materials have changed greatly over the past 100 years. Contemporary research has focused on modern construction; thus, we know a great deal about the behavior of modern lightframe buildings under lateral forces. However, there are many light-frame buildings that were built prior to the introduction of...
    Resource Type:
    Masters Thesis
    Full Text:
    Robert J. Leichti Light-frame construction practices and materials have changed greatly over the

  • The effects of nail bending-yield stress and biological deterioration on the cyclic performance of shearwalls

    Creator:
    Anderson, Erin N.
    Abstract:
    Key parts of the lateral force resisting system in wood-frame buildings are the shearwafls and the connections. The connections in wooden buildings are the primary source of ductility and energy dissipation; these are essential properties when buildings are exposed to lateral forces, such as wind and earthquakes. Shearwall design is...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: Robert J. Leichti Key parts of the lateral force resisting system in wood-frame

  • 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:
    approved: ______________________________________________________________ Robert J. Leichti

  • Slotted-bolted friction damper as a seismic energy dissipator in a braced timber frame

    Creator:
    Tjahyadi, Alfred
    Abstract:
    Friction dampers have been used successfully to dissipate seismic energy in steel and concrete structures. The application is new to timber structures. The objectives of this research were to design a slotted bolted connection (SBC) and evaluate its potential as a passive energy damper in timber brace. The research was...
    Resource Type:
    Masters Thesis
    Full Text:
    protocol. The six SBCs were later assembled in pairs to make three dual Robert J. Leichti Rakesh Gupta

  • Establishing a through-boring pattern and method of test for utility poles

    Creator:
    Elkins, Lori A.
    Abstract:
    The goal of this study was to optimize a through-boring pattern that will provide adequate preservative penetration while minimizing the reduction in overall pole bending strength. Hole spacing was developed using longitudinal and transverse chemical penetration data from previous studies. Finite element analysis was used as a preliminary assessment tool...
    Resource Type:
    Masters Thesis
    Full Text:
    a Through-borinq Pattern and Method of Test for Utility Poles Abstract Approved: Robert J

  • Microcosm studies of bioaugmentation with a butane-utilizing mixed culture : microbial community structure and 1,1-DCE cometabolism

    Creator:
    Lim, Hee Kyung
    Abstract:
    The 1,1-dichloroethene (1,1-DCE) cometabolic transformation abilities of indigenous and bioaugmented microorganisms were compared in microcosms constructed with groundwater and aquifer solids from the Moffett Field site, CA. Microbial community structure in the microcosms and possible community shifts due to 1,1-DCE transformation stress was evaluated by terminal restriction fragment length polymorphism...
    Resource Type:
    Masters Thesis
    Full Text:
    . Robert W. Collier for serving as Graduate Council Representative on my committee. It was very lucky for

  • 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:
    . Robert L. Higdon, Dr. Jack F. Higginbotham, Dr. Michael H. Scott for their time and effort spent

  • Performance-based seismic design of light-frame shearwalls

    Creator:
    Kim, Jun Hee
    Abstract:
    Performance-based design has gained interest in recent years among structural designers and researchers. Performance-based design includes selection of appropriate building sites, structural systems and configurations, as well as analytical procedures used in the design process, to confirm that the structure has adequate strength, stiffness and energy dissipation capacity to respond...
    Resource Type:
    Dissertation
    Full Text:
    thank my graduate committee members: Dr. Solomon Yim, Dr. Robert Leichti, Dr. Thomas Miller, and Dr

  • Aerobic biotransformation of chlorinated aliphatic hydrocarbons by a benzyl alcohol grown mixed culture : cometabolism, mechanisms, kinetics and modeling

    Creator:
    Tejasen, Sarun
    Abstract:
    The aerobic transformation of TCE and cis-DCE by a tetrabutoxysilane-grown microorganism (Vancheeswaran et al., 1999) led to the investigation of novel substrates, including benzyl alcohol, for promoting cometabolism. The culture grew on carboxylic compounds and alcohols, but did not grow on formate, methanol, methane, propane, butane, ethylene, benzene, toluene, or...
    Resource Type:
    Dissertation
    Full Text:
    alcohol- and phenol-grown cells oxidized toluene to o-cresol, which indicated the similarity between