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    RC Coupling Beams with High-Strength Steel Bars: Summary of Test Results

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    SL19-1_d.pdf (10.60Mb)
    Issue Date
    2019-01
    Author
    Weber-Kamin, Alexander S.
    Lequesne, Rémy D.
    Lepage, Andrés
    Publisher
    University of Kansas Center for Research, Inc.
    Type
    Technical Report
    Is part of series
    SL Report;19-1
    Published Version
    https://iri.ku.edu/reports
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    Abstract
    The use of high-strength steel bars in reinforced concrete coupling beams is expected to reduce reinforcement congestion. A series of tests was conducted to investigate the effects of high-strength reinforcement on coupling beam behavior. This report summarizes the test program and test results.

    Eleven large-scale coupling beam specimens were tested under fully reversed cyclic displacements of increasing magnitude. The main variables of the test program included: yield stress of the primary longitudinal reinforcement (Grade 80, Grade 100, and Grade 120 [550, 690, and 830]), span-to-depth (aspect) ratio (1.5, 2.5, and 3.5), and layout of the primary longitudinal reinforcement (diagonal [D] and parallel [P]). All beams had the same nominal concrete compressive strength (8,000 psi [55 MPa]) and cross-sectional dimensions (12 by 18 in. [305 by 457 mm]). Beams were designed for a target shear strength based on the upper limits specified in ACI 318-14. All transverse reinforcement was Grade 80 (550), except one specimen that had Grade 120 (830) transverse reinforcement.

    The test program is documented by presenting the details of specimen construction, test setup, instrumentation, and loading protocol. Documentation of test results include material properties and cyclic force-deformation response.
    URI
    http://hdl.handle.net/1808/27676
    Collections
    • Infrastructure Research Institute Scholarly Works [324]
    Citation
    Weber-Kamin, A. S., Lequesne, R. D., and Lepage, A., “RC Coupling Beams with High-Strength Steel Bars: Summary of Test Results,” SL Report 19-1, The University of Kansas Center for Research, Inc., Lawrence, KS, January 2019, 133 pp.

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    Lawrence, KS 66045
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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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