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    Punching Shear Strength of Post-Tensioned Transfer Slab-Column Connections

    Source: Journal of Structural Engineering:;2022:;Volume ( 148 ):;issue: 007::page 04022080
    Author:
    Su-Min Kang
    ,
    Su-Jeong Na
    ,
    Hyeon-Jong Hwang
    ,
    Thomas H.-K. Kang
    DOI: 10.1061/(ASCE)ST.1943-541X.0003383
    Publisher: ASCE
    Abstract: Current design codes specify the need for two-way shear strength analysis for prestressed slab-to-column connections. This paper is an investigative study of said interaction for post-tensioned (PT) transfer slabs. Two-way shear strength and failure mode of the tested PT slab specimens were evaluated. To analyze the interaction quantitatively, concentric compression tests were performed on recent PT transfer slabs having small shear span-to-depth ratios. Test parameters included the number and layout of post-tensioning reinforcement. The test results demonstrated that the two-way shear strength of the PT transfer slab specimens was 53%–87% greater than that of conventional RC transfer slab specimen. Increase was tied to concentrated layout of post-tensioning tendons rather than distributed layout. The two-way shear strengths of the test specimens were compared with predictions under current design methods for PT flat plates and the strut-tie model.
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      Punching Shear Strength of Post-Tensioned Transfer Slab-Column Connections

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4286686
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    • Journal of Structural Engineering

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    contributor authorSu-Min Kang
    contributor authorSu-Jeong Na
    contributor authorHyeon-Jong Hwang
    contributor authorThomas H.-K. Kang
    date accessioned2022-08-18T12:28:53Z
    date available2022-08-18T12:28:53Z
    date issued2022/04/30
    identifier other%28ASCE%29ST.1943-541X.0003383.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4286686
    description abstractCurrent design codes specify the need for two-way shear strength analysis for prestressed slab-to-column connections. This paper is an investigative study of said interaction for post-tensioned (PT) transfer slabs. Two-way shear strength and failure mode of the tested PT slab specimens were evaluated. To analyze the interaction quantitatively, concentric compression tests were performed on recent PT transfer slabs having small shear span-to-depth ratios. Test parameters included the number and layout of post-tensioning reinforcement. The test results demonstrated that the two-way shear strength of the PT transfer slab specimens was 53%–87% greater than that of conventional RC transfer slab specimen. Increase was tied to concentrated layout of post-tensioning tendons rather than distributed layout. The two-way shear strengths of the test specimens were compared with predictions under current design methods for PT flat plates and the strut-tie model.
    publisherASCE
    titlePunching Shear Strength of Post-Tensioned Transfer Slab-Column Connections
    typeJournal Article
    journal volume148
    journal issue7
    journal titleJournal of Structural Engineering
    identifier doi10.1061/(ASCE)ST.1943-541X.0003383
    journal fristpage04022080
    journal lastpage04022080-10
    page10
    treeJournal of Structural Engineering:;2022:;Volume ( 148 ):;issue: 007
    contenttypeFulltext
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