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Filtering by: Creator Johnston%2C Chlo%C3%A9 Z. Remove constraint Creator: Johnston%2C Chlo%C3%A9 Z. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • Random wave forces on cylinders

    Creator:
    Hsu, Ming-kuang
    Abstract:
    The in-line force power spectrum is predicted by the frequency domain maximum force coefficient [C[subscript μn](z,f[subscript n])] vs. Keulegan-Carpenter number [K[subscript n] (z,f[subscript n])] relationship. The frequency domain Keulegan- Carpenter number is defined as the velocity from the amplitude spectrum at f divided by the respective frequency and diameter of...
    Resource Type:
    Dissertation
    Full Text:
    [Cun(z,fn)] vs. Keulegan-Carpenter number [Kn(z,fn)] relationship. The frequency domain Keulegan

  • Probabilistic Tsunami Hazard and Damage Assessment of the Built Environment : Applied at Seaside, Oregon

    Creator:
    Park, Hyoungsu
    Abstract:
    Damage estimates to the built environment from tsunamis are important for disaster mitigation, including planning emergency response and recovery. This dissertation evaluates the damage states of buildings in a small urban coastal city, Seaside, Oregon, from tsunami hazards generated by a Cascadia Subduction Zone (CSZ) event. This study is separated...
    Resource Type:
    Dissertation
    Full Text:
    higher ground level (z > 3 m) while a longer Th (~100 min) is observed near the river and creek. For

  • A procedure for the distribution of internal forces and moments in cylindrical shells under uniform external loading

    Creator:
    Fandrem, Richard Lee
    Resource Type:
    Masters Thesis
    Full Text:
    )} z coh ji e L- C4n - n4n2j2(2c) R4n"(c) ß4j6(c)Jz .Lnt j s) ein nØ O ........... (30) The onLy

  • Application of the generalized Melnikov method to weakly damped parametrically excited cross waves with surface tension

    Creator:
    Fadel, Suzan M.
    Abstract:
    The Wiggins-Holmes extension of the generalized Melnikov method (GMM) is applied to weakly damped parametrically excited cross waves with surface tension in a long rectangular wave channel in order to determine if these cross waves are chaotic. The Lagrangian density function for surface waves with surface tension is simplified by...
    Resource Type:
    Dissertation
    Full Text:
    dimensional total pressure in the fluid P/ are computed from 1 2 U/ = 043/ p1 g Z (kit IV (I

  • Ocean wave-soil-geotextile interaction

    Creator:
    McDougal, W. G. (William George)
    Abstract:
    Geotextiles are synthetic fabrics which may be substituted for graded aggregate to protect ocean and coastal structures from erosion and soil instability adjacent to the structure. They are commonly used as a filter and as a structural membrane between an undisturbed sediment surface below and an erosion resistant coarse aggregate...
    Resource Type:
    Dissertation
    Full Text:
    z The total stress may be decomposed as = a - p a = p Y ay az=c3.-13. T X TX TY = Ty TZ = T

  • Displacement response of transmission line conductors during random wind gusts

    Creator:
    Cameron, George Richardson
    Abstract:
    The mean square displacement response of a point on a transmission line conductor that is subjected to wind gust generated lift forces is computed. The wind gust velocity and wind gust generated lift forces are treated as random processes in both time and space. A lift force, that is velocity...
    Resource Type:
    Dissertation
    Full Text:
    + C3 cosh/31z + C4 sinhAz (3-23) Differentiation gives ack(Z) C1/32Siflie2Z + C24 cos/32z + c313

  • Structural analysis of symmetrical penstock bifurcations by the finite element method

    Creator:
    Shugar, T. A.
    Abstract:
    A need has existed for an in-depth structural analysis of penstock bifurcations because they form an integral part of hydroelectric power plants. Their geometrical complexity has prevented classical structural analysis from providing an accurate and overall picture of the stresses in the structure. Digital computers and the development of finite...
    Resource Type:
    Dissertation
    Full Text:
    element Ring girder Crotch girder z Cylinder Cone Note: x-y plane and x-z plane are planes of

  • Finite elements analysis of circular cell bulkheads

    Creator:
    Kittisatra, Likhit
    Abstract:
    A mathematical model is developed for the analysis of circular cell bulkheads subjected to gravity loads of cell fill, backfill, lateral pressure, and surcharge load using the finite element method. The finite element circular cell model consists of axisymmetric triangular and/or quadrilateral ring elements for soil and cylindrical shell elements...
    Resource Type:
    Dissertation
    Full Text:
    0 02A where n1 al + blr + c1Z n2 a2 + b2r + c2Z n3 = a3 + b3r + c3 Z (2. 18) (2. 19a) 20

  • Critical buckling load for round tapered columns with variable end fixity

    Creator:
    Dotson, George Franklin
    Abstract:
    The critical buckling load for round tapered columns with variable end fixity is presented. The theory used is presented together with the general solution for the resulting differential equation. This general solution is solved by use of a computer. The computer program written specifically for this thesis, the flow chart,...
    Resource Type:
    Masters Thesis
    Full Text:
    further rearranging the following equation is obtained. k 2y 1 , 1 y" (R A x + MA) b 2[1- x] 4 EIA 2c

  • Horizontally curved beam analysis and design

    Creator:
    Wong, Yee-chit
    Abstract:
    This paper is a theoretical approach to solve problems of horizontally curved beams Castiglione's theorem is applied to solve for the fixed end bending moments, maximum span moments and fixed end torsional moments. To calculate the vertical deflection at the midspan of the curved beam the moment-area method is used....
    Resource Type:
    Masters Thesis
    Full Text:
    about the z-axis and a certain amount of loading perpendicular to the x-z or y-z plane should be used