Calculation for Rafter-column Connection

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    RAFTER - COLUMN CONNECTION

    Column

    Profile

    wc width

    hc height

    rc root radius of column

    twebc thickness of web

    tflangec thickness of flangeZc section modulus of column

    SMYS ASTM A36

     Ac area

    Beam

    Profile

    wb width

    hb height

    rb root radius of beam

    twebb thickness of web

    tflangeb thickness of flange

    Zb section modulus of beamSMYS ASTM A36

     Ab area

    End Plate for Haunch

    wpl width

    hpl height

    tpl thickness of plate

    SMYS ASTM A36

    Bolts

    M16

    dbolt diameter of boltnbolt number of bolt

     Abolt area of bolt

    α rafter alignment

    ft bolts tensile strength

    f bolts shear strength

    ft bolt tension capacit!

    f bolt shear capacit!

    Welds

    s width of weld

    g weld depth

    nominal weld !ield strengthφ"#$$

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    JOINT CONFIGURATION

    T!pe of %onnection Moment &esisting %onnections '(olt

    dist. of (mm)

    top 1*+3,

    flange -+1.

    Sa 3.+,,

    Sd 6.+,,Sd 6.+,,

    Sa 3.+,,

    flange -+1.

    Sa 3.+,,

    Sc *-+,,

    Sc *-+,,

    Sb */+,,

    flange -+1.

    bottom 1*+3,

    T0TA *1*

    top 2 flange 2 Sa

    s bottom 2 flange 2 sb

    dbolt

    sdbolt

    dn distance of neutral a4is from bottom of plate

    5con moment of inertia of haunch connection in local 3a4is

    Scon section modulus of haunch connection in local3 a4is

    %b width of beam width of end plate

    ALLOWABLE SHEAR

    71 bolts allowable shear

    7. beam allowable shear

    73 welds allowable shear

    7* end plate allowable shear

    7con connection8s allowable shear

    ALLOWABLE MOMENT

    M1 bolts allowable moment

    M. beam allowable moment

    M3 end plate allowable moment

    Mcon connection8s allowable moment

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    SUMMARY OF BEAM-COLUMN CONNECTION ESIGN

    7con connection8s allowable shear

    Mcon connection8s allowable moment

    7 ma4imum shear forces in connection 'from "#A output)

    M ma4imum moment in connection from '"#A output)

    Vcon > V , therefore connection design is adequate to resisting the external loads

    Mcon > M , therefore connection design is adequate to resisting the external moment 

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    59"

    .,, mm

    .,, mm

    13mm

    - mm

    1.mm*:., mm3

    ./+,kgmm.

    63/3+,mm

    ;

    1,, mm

    .,, mm

    11 mm

    /+/ mm

    -

    1-*,,, mm3./+,kgmm.

    .:16+,mm.

    1,, mm

    *1* mm

    1*mm

    ./+,kgmm.

    16mm1.ea

    .,1 mm.

    1,deg

    ,+1:/ rad

    3,+,kgmm.

    1/+,kgmm.

    *:1 kg

    .36 kg

    .,mm

    : mm

    .:+6kgmm.

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    d %onnections)

    hori

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    .-.:+.kg

    .:6,,,,+, kg+mm

    131.+,kg

    .6*3.1:+, kg+mm