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  • High cycle fatigue modeling and analysis for deck floor truss connection details

    Creator:
    DePiero, Anthony H.
    Abstract:
    The Oregon Department of Transportation is responsible for many steel deck truss bridges containing connection details that are fatigue prone. A typical bridge, the Winchester Bridge in Roseburg, Oregon, was analyzed to assess the loading conditions, stress levels, and fatigue life of the connection details. The analysis included linear-elastic beam...
    Resource Type:
    Masters Thesis
    Full Text:
    AND STRESS ANALYSIS 33 5.2 2D FEA MODEL 37 5.3 3D FEA MODEL 39 5.4 RESULTS 43 6.0 FATIGUE

  • Flexural steel anchorage performance at diagonal crack locations

    Creator:
    Triska, Mary Ann
    Abstract:
    Large numbers of reinforced concrete deck girder bridges that were constructed during the interstate system expansion of the 1950s have developed diagonal cracking in the stems. Compared to the present AASHTO-LRFD standards, the provisions of the 1950s allowed for higher shear stress in the concrete, thus reducing the amount of...
    Resource Type:
    Masters Thesis
    Full Text:
    variable Poisson’s ratio model (Vecchio and Wong, 2002) ...................... 189 F.6 Ductile steel

  • Parametric uncertainties in reliability analysis of bridge structures

    Creator:
    Hamutcuoglu, Osman Murat
    Abstract:
    Probability-based reliability methods have placed an increased emphasis on realistic simulation of structural behavior in bridge engineering. Uncertainty is present in every aspect of structural analysis. Aleatory uncertainties in the loading and load-carrying capacities, and epistemic uncertainties in mathematical idealization of bridge systems are the major contributors to uncertain structural...
    Resource Type:
    Dissertation
    Full Text:
    representations of systems using mathematical solutions and numerical approximations. The model uncertainty

  • Design, analysis and evaluation of bridge superstructures for live loads

    Creator:
    Turan, O. Tugrul
    Abstract:
    Due to age, original design that is deficient by modern standards, inadequate maintenance, environmental conditions, and increasing loads, large numbers of bridges in United States and elsewhere are classified as deficient and in need of rehabilitation or replacement. According to a national bridge inventory established by the Federal Highway Administration,...
    Resource Type:
    Dissertation
    Full Text:
    successful field performances. A statistical model for combined shear-moment resistance of

  • Numerical assessment of steel plate shear wall with coupling (SPSW-WC) system design procedure

    Creator:
    Li, Wennan
    Abstract:
    The Steel Plate Shear Wall (SPSW) system, is an innovative seismic lateral force resistant system, which has experienced increased use over the last three decades. The SPSW system is composed of boundary elements which anchor web plates that develop diagonal tension fields. A number of SPSW buildings have been built...
    Resource Type:
    Masters Thesis
    Full Text:
    Deteriorating Hysteresis Model . . . . . . . . . . . . . . . . . . . . . 3 1.3 Steel Plate Shear Wall with