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Filtering by: Has journal Sensors and Actuators B: Chemical Remove constraint Has journal: Sensors and Actuators B: Chemical Advisor Higgins, Christopher C. Remove constraint Advisor: Higgins, Christopher C. Subject Anchorage (Structural engineering) Remove constraint Subject: Anchorage (Structural engineering)

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  • 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:
    section. The actual bond stress (MacGregor and Wright 2005) may be calculated as: s b x df d 4d µ

  • Flexural anchorage performance and strengthening on negative moment regions using near-surface mounted retrofitting in reinforced concrete bridge girders

    Creator:
    Barker, Laura
    Abstract:
    Large numbers of reinforced concrete deck girder (RCDG) bridges were built during the highway infrastructure boom of the 1950's. The advent of standardized deformed steel reinforcing bars during this time allowed for straight bar terminations in flexural tension regions. Designers of the time terminated reinforcing bars where they were no...
    Resource Type:
    Masters Thesis
    Full Text:
    ........................ 64  Figure 3.30 – a) Midspan string potentiometer and b) Support displacement sensor .......... 65

  • Influence of diagonal cracks on negative moment flexural anchorage performance in reinforced concrete bridge girders

    Creator:
    Goodall, Joshua K.
    Abstract:
    Large numbers of vintage reinforced concrete deck-girder bridges remain in the national bridge inventory. Many of these exhibit diagonal cracking and other distress. Due to the design practices of the time, it is common to observe cracks at locations where flexural reinforcing steel is terminated along the span. The presence...
    Resource Type:
    Masters Thesis
    Full Text:
    ............................................................................. 101 Appendix B: Sample Shear Calculations for ACI 318 and AASHTO-LRFD ....................... 105

  • 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:
    .................................................................... 40 3.12 Specimens T.45.Ld3.(4) and T.45.Ld3.(5) internal sensor array ......................... 40