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  • Seismic Performance of Aging Prestressed Transmission Pole with Simulated Soil Foundation

    Creator:
    Argo, Maximo
    Abstract:
    The Cascadia Subduction Zone has recently been identified as a source for an impending great earthquake. The potential of a large earthquake has created widespread interest into the resiliency of lifelines within the potentially affected areas. One critical lifeline is the electrical distribution and transmission systems which relies on legacy...
    Resource Type:
    Masters Thesis
    Full Text:
    prestressed concrete specimens for testing. The project could not have been completed without the help of

  • The Effects of Construction Practices on Concrete Construction Joint Performance

    Creator:
    Panduranga Setty, Shreyas
    Abstract:
    Concrete is the most widely used construction material in the world. When constructing large concrete structures, concrete may have to be placed in multiple lifts. In these cases, fresh concrete is placed on hardened concrete. The interface that is formed between these two lifts of concrete is known as a...
    Resource Type:
    Masters Thesis
    Full Text:
    ........................................................................... 49 Table 12—Statistical comparison results from ANOVA testing using Da data of bulk concrete

  • Shear capacity assessment of corrosion-damaged reinforced concrete beams

    Creator:
    Farrow, William C.
    Abstract:
    The research presented here is a study to determine the effect of shear reinforcement corrosion on the shear capacity in conventionally reinforced concrete (CRC) bridge elements. A total of 14 CRC beams were tested using three stirrup spacings (8, 10, and 12-inch). Six of the beams included the influence of...
    Resource Type:
    Masters Thesis
    Full Text:
    Assessment of Corrosion-Damaged Reinforced Concrete Beams Abstract Approved: Christopher C. Higgins The

  • The use of blended synthetic fibers to reduce cracking risk in high performance concrete (HPC)

    Creator:
    Bañuelos, José
    Abstract:
    High Performance Concrete (HPC) is used in our crucial pieces of infrastructure, such as bridge decks, due to its enhanced durability and engineering properties. However, HPC is highly susceptible to early-age cracking. Cracking within the first months of a bridge deck’s lifespan can severely hinder its long-term performance and durability....
    Resource Type:
    Masters Thesis
    Full Text:
    accepted testing methods to measure the length change of hardened concrete. These specimens are exposed

  • Performance Based Tests on Cross Laminated Timber - Concrete Composite Floor Panels

    Creator:
    Blank, Curtis
    Abstract:
    This project determines the short term and long term effective stiffness values for Cross Laminated Timber (CLT) with a reinforced concrete topping. The reinforced concrete was attached to the CLT panels with interface connections, and different types of interface connections were tested. Throughout this project, there are 31 tests with...
    Resource Type:
    Masters Thesis
    Full Text:
    ......................................................................................................... 4 Literature Review………………………………………………………………………….5 2 2.1 Full Scale Testing of Timber-Concrete

  • Laboratory performance of highway bridge girder anchorages under hurricane induced wave loading

    Creator:
    Lehrman, Jora
    Abstract:
    Many bridges along the Gulf Coast of the United States were damaged by recent hurricanes, and many more are susceptible to similar damage. This research examines performance of common anchorage connection details for AASHTO Type III prestressed concrete girders used by some transportation agencies. Full-scale specimens were fabricated and tested...
    Resource Type:
    Masters Thesis
    Full Text:
    anchorage connection details for AASHTO Type III prestressed concrete girders used by some transportation

  • Testing and evaluation of flexural reinforcing bars terminating in columns

    Creator:
    Koester, Carl C.
    Abstract:
    Capacity of transverse 1950's vintage reinforced concrete deck girder bridge bent caps with large straight bar anchorages were investigated and evaluated. Eleven subassemblage column specimens were examined with different anchorage lengths, bar groupings, amount of transverse steel, and externally applied axial force. Test results showed an increase in anchorage capacity...
    Resource Type:
    Masters Thesis
    Full Text:
    of Master of Science in Civil Engineering presented on March 23, 2007. Title: Testing and

  • High Strength Reinforcing Bars : Concrete Shear Friction Interface Behavior

    Creator:
    Nielson, Drew R.
    Abstract:
    Use of high-strength steel (HSS) reinforcing bars could provide constructability and economic benefits for the construction of structures, reducing the initial and ultimately the life-cycle cost of bridge and building structural elements. This thesis summarizes work performed in a research project on the use of HSS reinforcing bars for concrete...
    Resource Type:
    Masters Thesis
    Full Text:
    High Strength Reinforcing Bars: Concrete Shear Friction

  • Analysis of conventionally reinforced concrete bridge girders for low-cycle fatique in shear

    Creator:
    Forrest, Richard W. B.
    Abstract:
    Increasing load magnitudes and loss of reinforcing steel cross-sectional area from corrosion creates the potential for low-cycle fatigue (LCF) in conventionally reinforced concrete (CRC) bridge girders lightly reinforced for shear. LCF of reinforcing steel may be of particular concern. Little data are available for LCF of reinforcing steel without stress...
    Resource Type:
    Masters Thesis

  • Freeze-thaw durability of reinforced concrete deck girders strengthened for shear with surface-bonded carbon fiber-reinforced polymer

    Creator:
    Mitchell, Mikal Maxwell
    Abstract:
    Long-term durability of surface-bonded carbon fiber-reinforced polymer (CFRP) U-wraps for shear strengthening of reinforced concrete (RC) bridge members remains uncertain due to the limited field experience with these materials. This paper provides experimental results from the testing of full-scale RC bridge girder specimens after exposure to prolonged freeze-thaw cycling. CFRP...
    Resource Type:
    Masters Thesis
    Full Text:
    presented on July 8, 2008. Title: Freeze-Thaw Durability of Reinforced Concrete Deck Girders