walls lect 2

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  • 7/25/2019 Walls Lect 2

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    Some special considerations

    related to constructionof walls

    BONDS

    Need for proper bonding

    LoadLoad

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    Need for proper bonding

    10mm thick mortar joints are allowed between bricks to

    (a) account for variations in brick dimensions

    (b) provide uniform contact between adjacent bricks

    (c) exclude rain and dust

    (d) make the brickwall a monolithic structural element (e) accommodate different strains setup in different

    directions

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    Brick

    Stretcher

    face

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    B!"# $%&!%'S

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    Some important types of bonds(a) Stretcher bond

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    Some important types of bonds eader bond

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    Some important types of bonds n*lish bond ++,mm thick

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    Some important types of bonds

    n*lish bond --. mm thick

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    Some important types of bonds

    n*lish bond is the mostl/ used bond (except for

    1+brick walls)

    2lemish bond is another t/pe which is stron* and

    attractive than n*lish bond

    2or 1 brick thick walls n*lish bond is better than

    header bond because

    3 (a) it is beautiful3 (b) wall is more stable with stretcher courses

    3 (c) it *ives better stren*th at junctions and stopped

    ends due to stretcher courses

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    Stopped ends Stretcher bond

    ELEVATION

    LAN B

    LAN A

    alf

    bat

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    Stopped ends

    eader bond

    L45&!%'

    $L5' 5

    $L5' B

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    Stopped ends n*lish bond

    6ueen "loser 1+

    L45&!%'

    $L5' 5

    $L5' B

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    !ig"t angled bends #$uoins%

    !i "t l d b d #$ i %

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    !ig"t angled bends #$uoins%

    Englis" Bond

    Ot" t f b d 2l i h b d

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    Ot"er types of bonds & 2lemish bond

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    at7&rap 8allLa/ the first course with brick

    in 19: cement9sand mortar

    La/ second course as shown

    in the sketch and repeat the

    same in the course ;

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    !ig"t angled 'unctions

    ++,mm thick walls

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    Detac"ed and attac"ed piers?etached $iers

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    5ttached $iers

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