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Filtering by: Creator Lawrence, Harold G. Remove constraint Creator: Lawrence, Harold G. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • Shrinkage and strength of steam cured Haydite masonry unit concrete mixes

    Creator:
    Peyton, Harold Ray
    Resource Type:
    Masters Thesis
    Full Text:
    concrete mixes SHRINKAGE AND STRENGTH OF STEA?I CURED HAYDITE NASONRY UNIT CONCRETE ?IIXES by HAROLD

  • Abiotic and biological transformation of TBOS and TKEBS, and their role in the biological transformation of TCE and c-DCE

    Creator:
    Vancheeswaran, Sanjay
    Abstract:
    At Site-300, Lawrence Livermore National Laboratory (LLNL), CA, trichloroethene (TCE) is present along with tetraalkoxysilanes such as tetrabutoxysilane (TBOS) and tetrakis(2-ethylbutoxy) silane (TKEBS), as subsurface contaminants. Intrinsic transformation of TCE to cis-dichloroethene (c-DCE) was observed in the groundwater at locations co-contaminated with TBOS or TKEBS. Attenuation of TBOS and TKEBS...
    Resource Type:
    Masters Thesis
    Full Text:
    Transformation of TCE and c-DCE. Abstract approved: Abstract approved: At Site-300, Lawrence Livermore

  • A method of seismic design for prestressed concrete highway bridge girders

    Creator:
    Lam, Kwok To
    Abstract:
    The effects of vertical ground motion are particularly significant in the design of highway bridge girders. Conventional codes do not recommend methods for solving the problem. The intent of this work is to suggest an approach for such design. A set of curves for velocity spectra which are the average...
    Resource Type:
    Masters Thesis
    Full Text:
    PRESTRESSED CONCRETE HIGHWAY BRIDGE GIRDERS Abstract approved: Redacted for Privacy Dr. Harold I. Laursen

  • Matrix analysis of structures with semi-rigid connection

    Creator:
    Grant, Joseph Edward
    Abstract:
    This thesis presents a matrix analysis of structures with semirigid connections. The stiffness factor of a connection has been assumed to be a constant as represented by the initial relationship of moment versus rotation. Three cases are considered: Case I - structures with semirigid connections, column width and beam depth...
    Resource Type:
    Masters Thesis
    Full Text:
    Enginee:r- ing faculty at Oregon State University and in particular to Dr " Harold I " I-,aursen for

  • A linkage finite element for nailed composite wood I-Beams and T-Beams

    Creator:
    Lee, Chyuan-shen
    Abstract:
    With current nonlinear analysis computer capabilities, this study was conducted to develop a linkage element that permits analyses of wood composite structures taking into account possible slip in the nailed joints. The finite elements chosen to represent the wood stud, plywood, gypsum and nails are described. The method as applied...
    Resource Type:
    Masters Thesis
    Full Text:
    gratitude to my major professor, Dr. Harold I. Laursen, for his guidance, encourage- ment and support

  • Digital simulation of multi-dimensional random processes and its applications

    Creator:
    Ahn, Gil Soo
    Abstract:
    This dissertation introduces a method which can simulate multi-dimensional Gaussian random processes by the superposition of sine functions The fast Fourier transform technique is incorporated into the simulating method to facilitate saving of computer time. In view of the fact that the fast Fourier transform play important roles in digital...
    Resource Type:
    Dissertation
    Full Text:
    Hpg(k/Nh) and its complex transpose, i.e., Spg(k/Nh) = Ppg(k/Nh)][H;g(k/Nh)] T ( 7) where * denotes

  • 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:
    , tech- nical assistance, and suggestive criticism was provided by Professor Harold Laursen, of Oregon

  • Static and dynamic analysis of wood-joist floors by the finite element method

    Creator:
    Polensek, Anton
    Abstract:
    The conventional method for structural design of wood-joist floors is over-simplified and often results in stronger and stiffer floors than necessary. There is also a need to include in the floor design additional criteria dealing with human response to floor vibration such as that due to walking. This study develops...
    Resource Type:
    Dissertation
    Full Text:
    gratitude goes to Dr. Harold I. Laursen for his guidance and encouragement during the formation of this

  • Dynamic analysis of three-dimensional frames

    Creator:
    Scholl, Roger Edwin
    Abstract:
    The response of three-dimensional frames subjected to an arbitrary dynamic force is studied. The method of mode superposition is used to obtain the frame response solution. Two different modeling systems are used to idealize the frame. These are the "discrete mass system" and the "continuous mass system." For an example...
    Resource Type:
    Dissertation
    Full Text:
    . Harold I. Laursen for his never-failing positive attitude both during the three years of the graduate

  • Pile group analysis considering rigid and semirigid foundation conditions

    Creator:
    Winchester, Jack LeRoy
    Abstract:
    The structural behavior of pile groups (dolphins) is analyzed considering two types of boundary conditions. First the individual piles of the group are assumed to be rigidly embedded in the soil. In the second analysis the more realistic case is considered where the soil foundation is allowed to yield. The...
    Resource Type:
    Masters Thesis
    Full Text:
    . Laursen, Harold I. Matrix analysis of structures. New York, McGraw -Hill, 1966. 155 p. 7. Meyerhoff, G