Statis Momen

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    step 1

    step 2 MOMEN INERSIA. I Rumus Umum :

    = 12274.3

    step 3 MOMEN LAWAN, W Rumus Umum :

    = 1523.71 cm³

    = 724.385 cm³

    step 4 TEGANGAN :

    cm4

    y1

    y2

    5

    25

    5

    20

    z1

    z2

    yb = 16,94

    ya = 8,06

    )Ukuran daam cm!

    "#

    ∫ =   dA I    . 2

     ρ 

    2

    2

    3

    22

    2

    1

    3

    11   ... 12

    1 ...

    12

    1  z  AII hb z  AI hb Ix

    tot    +++=

     y

     I  W    =

    a  ATAS   y

     Ix

    W    =

    b

     BAWAH   y

     Ix W    =

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    y1

    z$3

    y2

    ya = 8,06

    yb = 16,94

    z$2

    z$1

    20

    5

    25

    5

    "#

    )Ukuran daam cm!

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    1) TEGANGAN GESER, t  Rumus Umum :

    a!. %aya$ )&'ns!

    1200 ) 25 ( 5 ( 5.56 ! = 2.7157 k*cm+

    25 ( 12274.3056

    b!. ,adan )-'b!

    1200 ) 5 ( 20 ( 6.94 ! = 13.5785 k*cm+

    5 ( 12274.3056

    1200 ) 5 (  ( 8.47 ! = 14.0349 k*cm+

    5 ( 12274.3056

    2) TEGANGAN NORMAL, Rumus Umum :

    = / = = 8.89k*cm+

     225

    3) TEGANGAN LENTUR, Rumus Umum :

    a! . %'ra as == m'n n'a b'rar s'ra aas 'rark )!

    = 720000 = 472.532 k*cm+ )!

    1523.7

    b! . %'ra ,aa == m'n n'a b'rar s'ra aas 'r'kan )!

    = 720000 = 993.946 k*cm+ )!

    724.39

    Ä ;ada ,aas nara %aya$ < ,adan

    τa =

    τb =

    Ä ;ada ars /'ra kba ,aan ,adan %'n yb

    τc =

    5

     I b

    S  D

    .

    .

    =τ  

     N σ  

     A

     P  =σ   

     N σ 

     M  σ    W  

     M  =σ   

     ATAS 

     I  I   M 

    W   M 

    =σ  

     BAWAH 

     I  I 

     M  W 

     M  −

    =σ  

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    ambar >aram

     ?kk @rdna >aram

    >aram ?'. 's'r sca'

    2.7157 100 0.027157001 13.5785 100 0.135785007

    14.0349 100 0.140348892

    >aram ?'. /rma sca'

    8.88889 100 0.088888889

    8.88889 100 0.088888889

    >aram ?'. #'nur sca'

    472.532 10000 0.047253182

    993.946 10000 0.099394625

    ya =8,06

    yb = 16,94

    z$2

    z$1

    20

    5

    25

    5

    y1

    z$3

    y2

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    Parameter 

    b1 = 25 cm

    h1 = 5 cm

    b2 = 5 cm

    h2 = 20 cm

    STATIS MOMEN KE TEPI ATAS, (ya)

    C = 25 ( 5 = 125 cm+

    CC = 5 ( 20 = 100 cm+

    y1 = 5 * 2 = 2.5 cm

    y2 = 20  5 = 15 cm

    2

    ya = C.y1  CC.y = 8.05556 cm C  CC

    yb = )205!  ya = 16.9444 cm

    z1 = ya  y1 = 5.55556 cm

    z2 = y2  ya = 6.94444 cm

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    z$1 = ya  y1 = 5.55556 cm

    z$2 = y2  ya = 6.94444 cm

    z$3 = yb*2 = 8.47222 cm

    b3 = 5 cm

    h3 = yb cm

    = 16.9 cm

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    >k'au : > = 1.2 

    = 1200 k

    >k'au : / = 2 

    2000 k

    =

    = C  CC

    = 225 cm+

    >k'au : = 7.2 .m

    720000 k.cm

    = 1523.71 cm³

    = 724.385 cm³

     a

    b 1 .

    1   b

    2 .

    2

     C  C

    - ?%

    - ,-D

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    8

    14

    13,5792,716

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    C = 600 ( 200 = 120000 mm2

    CC = 200 ( 500 = 100000 mm2

    y1 = 200 * 2 = 100 cm

    y2 = 500  200 = 450 cm

    2

    ya = C.y1  CC.y2 = 259.091 cm

    C  CC 

    yb = )205!  ya = 440.909 cm

      

    600

    50 10 0 1 00 1 00 1 00 1 00

    50

    50

    100

    50

    200

    50 100

      50

    50

    150

    250

    350

    450

    550

    650

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    12/160 ?A. #A/?UR ?A. /BR#

    993,946

    472,5328,889

    14

    3,579

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    b = 250 fc' = 25 N/mm2

    h = 500 fy = 400 N/mm2

    d' = 50 D = 19 mm

    As tul = 2!"52# mm2

    d = h $ d'

    d = 450 As = 50"5%2 As' = 50"5%2

    d $ h/2 = 200

    d $ d' = 400

    0"5 & fc' & h & b & d $ h/2( ) As' & fy & d $ d'( %%#,!4!,#9!"#5 200"00

    0"5 & fc' & h & b ) As ) As'( & fy !!!%#1"9%#%#55

    b = 250 fc' = 25 N/mm2

    h = %00 fy = 400 N/mm2

    d' = 50 D = 19 mm

    As tul = 2!"52# mm2

    d = h $ d'

    d = 550 As = 50"5%2 As' = 50"5%2

    d $ h/2 = 250

    d $ d' = 500

    0"5 & fc' & h & b & d $ h/2( ) As' & fy & d $ d'( 9%%,992,242"19 250"00

    0"5 & fc' & h & b ) As ) As'( & fy !%#9%"9%#%#55

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    b = 250 fc' = 25 N/mm2

    h = 500 fy = 400 N/mm2

    d' = 40 D = 19 mm

    As tul = 2!"52# mm2

    d = h $ d'

    d = 4%0 As = 50"5%2

    As' = 50"5%2

    d $ h/2 = 210

    d $ d' = 420

    0"5 & fc' & h & b & d $ h/2( ) As' & fy & d $ d'( #00,#10,9!"44 210"00

    0"5 & fc' & h & b ) As ) As'( & fy !!!%#1"9%#%#55

    b = 250 fc' = 25 N/mm2

    h = 500 fy = 400 N/mm2

    d' = 50 D = 19 mm

    As tul = 2!"52# mm2

    d = h $ d'

    d = 450 As = 11!4"115   ==>PERHATAN JIKA TULA As' = 50"5%2

    d $ h/2 = 200

    d $ d' = 400

    0"5 & fc' & h & b & d $ h/2( ) As' & fy & d $ d'( %%#,!4!,#9!"#5 19!"4!

    0"5 & fc' & h & b ) As ) As'( & fy !4501!0"4%!5%214

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    b = 250 fc' = 25 N/mm2

    h = %00 fy = 400 N/mm2

    d' = 40 D = 19 mm

    As tul = 2!"52# mm2

    d = h $ d'

    d = 5%0 As = 11!4"115

    As' = 50"5%2

    d $ h/2 = 2%0

    d $ d' = 520

    0"5 & fc' & h & b & d $ h/2( ) As' & fy & d $ d'( 1,005,%#1,9!1" 252"59

    0"5 & fc' & h & b ) As ) As'( & fy !91!0"4%!5%214

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    NGAN TIDAK SERAGAM

    ACER: ,ARA%AR @A RD ?U#//  E/ #A,CD ,/E@  UNTUK MENCAPAI KESEIMBANGAN (LEBIH DEKAT KE AS YANG BESAR)

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    b = 250 mm fc' = 2# N/mm2

    h = %00 mm fy = 400 N/mm2

    d' = 50 mm D = 1% mm As tul = 201"0%192929# mm2

    d = h $ d'

    d = 550 mm As = ! D 1% %0!"15#9492

    As' = ! D 1% %0!"15#9492

    Statis Momen terhadap t!an"an tari#$ As %

    d $ h/2 = 250 mm

    d $ d' = 500 mm

    d * = 0"5 & fc' & h & b & d $ h/2( ) As' & fy & d $ d'( = 91,2%2,15#"90 =

    0"5 & fc' & h & b ) As ) As'( & fy !,925,04"%!

    Statis Momen terhadap tepi atas &!o# te"' Te#an &eton %

    d * = 0"5 & fc' & h & b &  h/2( ) As' & fy & d'( ) As & fy & d( 11##51459"4##42 =

    0"5 & fc' & h & b ) As ) As'( & fy !,925,04"%!

    Statis Momen terhadap t!an"an te#an$ As( %

    h/2 $ d' = 250 mm

    d $ d' = 500 mm

    d * = 0"5 & fc' & h & b & h/2 $ d'( ) As & fy & d $ d'( = 91,2%2,15#"90 =

    0"5 & fc' & h & b ) As ) As'( & fy !,925,04"%!

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    Statis Momen terhadap titi# ) %

    & = 125 mm d+- .+-s t+l +m+. bt 3 3+

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