พื้นไร้คาน (flat slab) - ??ทที่ 5. พื้นไร้คาน (flat...

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  • 5

    (FLAT SLAB)

    Post-tension

    2 (Punching

    Shear)

  • |

    ___________________________________________________________________

    Page | 34 I 5

    (Punching Shear)

    5.1

    ( 5.1 ())

    (

    5.1 ())

    5.1 ()

    ( : http://www.scielo.br https://nees.org)

  • The Thailand Research Fund | FLAT SLAB

    ___________________________________________________________________

    5 | Page | 35

    5.1()

    5.2

    5.3 Shear Head

    Shear Head

    5.2

  • |

    ___________________________________________________________________

    Page | 36 I 5

    5.2 Shear head

    (: http://www.cortartec.net/documents/punching_shear_reinforcement.pdf)

    5.4 2

    1) (Drop Panel) 5.3

    5.3

    2) 5.4

  • The Thailand Research Fund | FLAT SLAB

    ___________________________________________________________________

    5 | Page | 37

    5.3

    h

    h/4

    L/3

    5.4

    5.5

    .1301-54

    1) (Ms)

    2) fMs ( 3

    5.5

  • |

    ___________________________________________________________________

    Page | 38 I 5

    3)

    4) 1 4 2

    5.6

    5) 5.6

    5.5

    t

    c2

    1.5t

    1.5t

    1.5t 1.5tc1

  • The Thailand Research Fund | FLAT SLAB

    ___________________________________________________________________

    5 | Page | 39

    5.6

    5.6

    .1301-54

    1) 5.7

    2) 5.7

  • |

    ___________________________________________________________________

    Page | 40 I 5

    5.7

    5.1 5.2 5.3 Shear Head5.4 5.5 5.6