adherencia, anclaje y empalme del acero de refuerzo en el concreto

56
C C C O O O N N N C C C R R R E E E T T T O O O A A A R R R M M M A A A D D D O O O O I I I I 1

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ANCLAJE DE ACERO EN EL CONCRETO

TRANSCRIPT

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  • ADHERENCIA,

    ANCLAJE Y EMPALME

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    CORRUGACIONES

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    NINGUNA LONGITUD DE DESARROLLO

    BARRAS PROLONGADAS DENTRO DEL APOYO

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    Estribos #3 @ 8"

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    NECESITA ANCLAJE POR TRACCION:NECESITA ANCLAJE POR TRACCION:NECESITA ANCLAJE POR TRACCION:NECESITA ANCLAJE POR TRACCION:

    SOLO EN BARRAS SUPERIORES SOLO EN BARRAS SUPERIORES SOLO EN BARRAS SUPERIORES SOLO EN BARRAS SUPERIORES

    CASO CASO CASO CASO

    FUERZAS DE GRAVEDADFUERZAS DE GRAVEDADFUERZAS DE GRAVEDADFUERZAS DE GRAVEDAD

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    NECES IT A ANC LA JE POR TRACC IO N :N ECES IT A ANC LA JE POR TRACC IO N :N ECES IT A ANC LA JE POR TRACC IO N :N ECES IT A ANC LA JE POR TRACC IO N :

    EN B ARRAS SU PER IO R ES COM OEN B ARRAS SU PER IO R ES COM OEN B ARRAS SU PER IO R ES COM OEN B ARRAS SU PER IO R ES COM O

    IN FER IO R ESIN FER IO R ESIN FER IO R ESIN FER IO R ES

    C A SO C A SO C A SO C A SO

    FUERZAS D E G RAV EDAD Y S ISM OFUERZAS D E G RAV EDAD Y S ISM OFUERZAS D E G RAV EDAD Y S ISM OFUERZAS D E G RAV EDAD Y S ISM O

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    L/3 L/3 L/3

    L/4 L/4 L/4 L/4

    m m

    m m m m

    m m

    H

    LONGITUDES MINIMAS DE EMPALME

    BARRA INF.(cm)BARRAS SUPER. (cm)

    H < 30cm H > 30cm

    3/8" 40 40 50

    1/2" 45 45 60

    5/8" 55 55 70

    3/4" 65 65 90

    1" 115 115 140

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