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Filtering by: Alternative title ssim Data report 170 Remove constraint Alternative title ssim: Data report 170 Advisor Higgins, Christopher C. Remove constraint Advisor: Higgins, Christopher C. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • An investigation of Oregon weight-in-motion data for bridge rating implementation and evaluation

    Creator:
    Pelphrey, Jordan Michael
    Abstract:
    The LRFR Manual, within commentary Article C6.4.4.2.3, contains provisions for development of site-specific live load factors. In Oregon, truck Weigh-in-Motion (WIM) data were used to develop live load factors for use on state-owned bridges. The factors were calibrated using the same statistical methods that were used in the original development...
    Resource Type:
    Masters Thesis
    Full Text:
    Oregon Weigh-In-Motion Data for Bridge Rating Implementation and Evaluation. Abstract approved: C

  • Investigation of the behavior of diagonally cracked full-scale CRC deck-girders injected with epoxy resin and subjected to axial tension

    Creator:
    Smith, Matthew T. (Matthew Todd)
    Abstract:
    Article 1: Behavior of Epoxy Injected Diagonally Cracked Full-Scale CRC Deck-Girders. Many cast-in place reinforced concrete deck-girder bridges (RCDG) remain in the national inventory and exhibit diagonal cracking. Epoxy injection has been in use for several decades as a method for sealing diagonal cracks, but the effects on girder behavior...
    Resource Type:
    Masters Thesis
    Full Text:
    been validated. Much of the existing data regarding performance of members injected with epoxy have

  • Analysis of conventionally reinforced concrete deck girder bridges for shear

    Creator:
    Potisuk, Tanarat
    Abstract:
    Large numbers of 1950's vintage conventionally reinforced concrete (CRC) bridges remain in-service in the national bridge inventory. Many of these bridges are lightly reinforced for shear. Evaluation of these bridges to prevent unnecessary and costly repairs requires refined analytical techniques. This dissertation presents finite element (FE) modeling and comparisons of...
    Resource Type:
    Dissertation
    Full Text:
    configurations. Load distribution was developed for the bridges based on the field data. Comparisons with AASHTO

  • New acoustic emission applications in civil engineering

    Creator:
    Schumacher, Thomas
    Abstract:
    Non-destructive testing methods and applications have become of increasing interest due to the worldwide aging and deteriorating infrastructure network. In the field of Civil Engineering, bridges and bridge components as well as non-structural elements such as roadway pavements for example, are affected. In particular, the Acoustic Emission (AE) technique offers...
    Resource Type:
    Dissertation
    Full Text:
    the roadway infrastructure network and this tool would enable gathering statistical data or

  • 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:
    cracks. Experimental data from realistic full-size specimens with anchorage of flexural bars

  • Analysis of diagonally cracked conventionally reinforced concrete girders in the service load range

    Creator:
    Robelo, Melissa J.
    Abstract:
    Performance evaluation of conventionally reinforced concrete (CRC) bridge superstructure elements with diagonal cracks is of interest to the bridge engineering community. Standardized methods to predict service-level stress magnitudes in cracked bridge girders under combined bending and shear forces are not available. An analysis procedure was developed to determine the response...
    Resource Type:
    Masters Thesis
    Full Text:
    for privacy stirrup strains with those from full-size laboratory specimens. Empirical data were

  • Wind induced torsional fatigue behavior of truss bridge verticals

    Creator:
    Keller, Philipp
    Abstract:
    The Astoria-Megler Bridge is a 6.6 kilometer (4.1 mile) long bridge, connecting Oregon and Washington on US 101, with a continuous steel truss main span of 376 m (1232 ft). It is the second longest main span bridge of this type in the world. Due to vortex shedding, some of...
    Resource Type:
    Masters Thesis
    Full Text:
    Engineering Research Laboratory at Oregon State University. Experimental data of the rotational behavior

  • Shear repair methods for conventionally reinforced concrete girders and deep beams

    Creator:
    Howell, Daniel A.
    Abstract:
    Many conventionally reinforced concrete deck girder bridges (RCDG) and their intermediate supporting bent caps were designed during the Eisenhower interstate era of the 1950’s with the AASHO design equations at the time, which subsequently place higher demand on the concrete. The referenced components may exhibit diagonal cracking due to the...
    Resource Type:
    Dissertation
    Full Text:
    sufficient data to support general conclusions. ©Copyright by Daniel A. Howell

  • Investigation of the fatigue behavior of diagonally-cracked CRC deck-girders repaired with CFRP

    Creator:
    Williams, Grahme T.
    Abstract:
    Fiber reinforced polymers (FRP) are becoming more widely used for repair and strengthening of conventionally reinforced concrete (CRC) bridge members. Once installed, the repair may be exposed to millions of load cycles during service life. The anticipated life of FRP repairs for shear strengthening of bridge members under repeated service...
    Resource Type:
    Masters Thesis
    Full Text:
    bonded carbon fiber laminates for shear strengthening was inspected and instrumented. FRP strain data

  • Applying climate change information to hydraulic and hydrologic transportation infrastructure

    Creator:
    Al Naabi, Rawan Y.
    Abstract:
    Scour is the main cause of bridge failures in the United States. Bridge failures raise a hazard to the safety of the traveling public as well as the massive economic consequences due to the high cost of constructing a new or a replacement bridge. The Oregon Department of Transportation (ODOT)...
    Resource Type:
    Masters Thesis
    Full Text:
    reviewed. The input data, analysis methods, and analytical models used in the Hydraulics Report were