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Filtering by: Creator Dyrness, C. T. Remove constraint Creator: Dyrness, C. T. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • 3-D finite element modeling in OpenSees for bridge live-load girder distribution factors

    Creator:
    Scoggins, Luke A.
    Abstract:
    A generalized, three-dimensional, finite element bridge model was created in order to efficiently and accurately assess live-load girder distribution factors for a variety of bridge types. This model shortens the time required by bridge analysts to develop individual finite element models for bridges of varying geometries. The creation of the...
    Resource Type:
    Masters Thesis
    Full Text:
    c a le R e la ti v e T im e - l in . s c a le R e la ti v e T im e - l in

  • A BIM-based Simulation Framework for Fire Evacuation Planning

    Creator:
    Sun, Qi
    Abstract:
    Fire hazards threaten human life and property safety. Since it is unrealistic to study human behavior during a real fire hazard, computational tools are a better choice to computational tools are a better choice to simulate fire growth and human behavior for predicting evacuation performance in chaotic emergency situations. Although...
    Resource Type:
    Masters Thesis
    Full Text:
    different evacuation scenarios………………...………48 4.6 Two-sample t-test on the alarm system effect

  • A calculation of the suction requirements to prevent boundary layer separation on a circular cyclinder

    Creator:
    Corsiglia, Victor R.
    Abstract:
    An investigation was made to test the method of Head on the flow about a circular cylinder with suction. The method of Head is an approximate method of obtaining solutions to the boundary layer equations. The method was adapted to the digital computer to facilitate performing the calculations, and a...
    Resource Type:
    Masters Thesis
    Full Text:
    value of angle 4 (see Figure 20) Viscosity p Density PIP t; t* = (8/c)2 Uo c/v = to /U) (8u /8y

  • A Comparison of Formation Factor to Standard Methods to Evaluate Transport Properties

    Creator:
    Whatley, Samantha N.
    Abstract:
    Chloride-induced corrosion is one of the primary causes of the degradation of reinforced steel in concrete structures. Currently, the rapid chloride permeability test (RCPT) is the most specified method to determine the concrete’s resistivity to chloride ingress, thus a determining factor in assessing the durability of concrete. While it is...
    Resource Type:
    Masters Thesis
    Full Text:
    saturation is compared to the porosity obtained by ASTM C-642 [10

  • A composite-beam finite element for seismic analysis of wood-framed buildings

    Creator:
    Lee, Chyuan-shen
    Abstract:
    A computer program called SAPWOOD which possesses the capability of performing linear or nonlinear, static or dynamic response including seismic excitation for wood-framed buildings with semirigid connection systems is presented in this study. Program SAPWOOD is a modification of the program NONSAP by adding new elements such as a linkage...
    Resource Type:
    Dissertation
    Full Text:
    tan,t+At{ii) t t +At {U} (i) {Au} (i) V (s) A m c t XJ X. X. , J, J LIST OF SYMBOLS (continued

  • A Comprehensive Mechanistic Study on Using Fine Lightweight Aggregate to Mitigate Alkali-silica Reaction

    Creator:
    Li, Chang
    Abstract:
    Previous research has shown that using fine lightweight aggregate (FLWA) can be a promising strategy to mitigate alkali-silica reaction (ASR) in mortar and concrete. While several possible theories were proposed by researchers, discrepancies in testing methods, materials, and supporting evidence still exist. Therefore, this study was initiated. There are two...
    Resource Type:
    Dissertation
    Full Text:
    composition of the infilling reaction product was found to be close to C-A-S- H, rather than ASR gel. The Ca

  • A determination of ultimate pile capacity in clayey silt

    Creator:
    Thompson, Duane Melvin
    Abstract:
    Predetermining the ultimate capacity of piles driven into purely cohesive soils and purely cohesionless soils involves, respectively, the consideration of soil shear strength in a completely undrained and a completely drained condition. For the intermediate cases concerning soils that possess both cohesion and internal friction (silts, clayey silts, sandy clays,...
    Resource Type:
    Masters Thesis
    Full Text:
    495 50 50 495 490 SC C n( 1200 7 BORING I ELEVATION 529 BROWN CLAMOR SILT UPPER FOOT) ITN

  • A discrete numerical study of micromechanics of sand liquefaction

    Creator:
    Zhang, Lei
    Abstract:
    Liquefaction of saturated granular material due to cyclic loading can result in catastrophic damage to the built environment. The mechanics of liquefaction have been previously studied through field testing, physical modeling, laboratory experiments, and numerical simulations. However, significant questions remain with respect to the particle-scale behavior of granular materials during...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ T. Matthew Evans Liquefaction of saturated granular material due to cyclic loading can

  • A formal model of construction safety and health risk management

    Creator:
    Hallowell, Matthew R.
    Abstract:
    Despite recent efforts to improve site safety, construction still accounts for a disproportionate injury and illness rate. According to the 2007 injury and illness data released by the National Safety Council, the construction industry has a fatality and disabling injury rate that is approximately three times higher than the all-industry...
    Resource Type:
    Dissertation
    Full Text:
    activities ……………………………. 259 Appendix C –Round 1 Delphi survey of demand panel (complete) …………….. 265

  • A Framework for Analyzing Debris Removal Operations Using Discrete Event Simulation

    Creator:
    Vijay, Akash
    Abstract:
    Debris generated after a disaster event must be disposed efficiently for community recovery. This is a significant operation that accounts for up to 27% of the total recovery costs. Generally, debris removal takes place in two phases: the short-term relief phase, which involves debris removal immediately after a disaster to...
    Resource Type:
    Masters Thesis
    Full Text:
    ) ................................................................... 38 Figure 4.9: Vegetative Debris Model for Astoria (c