ejercicio analisis estructural 1

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  • 7/25/2019 Ejercicio analisis estructural 1

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    ESTRUCTURA DE EVALUACIN

    2 2

    1

    5 2 2 2

    FUERZAS Y MOMENTOS DE EMPOTRAMIENTO

    2.50

    2.08

    2.80

    0.58

    2.00

    -2.37

    1.30

    -0.20

    Solucin:

    DATOS VIGAS TRAMO 1-2 DATOS

    f'c= 210 = 0.3 f'c=

    E= 217370.!5 "= 0.! E=

    I= 0.005# $= 5 I=

    %1 &1 %2 &2

    112.!8 281.71 -112.!8 281.71 %1

    1-2= 281.71 (3(.0# -281.71 #!(.52 &1 2-3=

    -112.!8 -281.71 #!(.52 -281.71 %2

    281.71 #!(.52 -281.71 (3(.0# &2

    DETERMINACION DE LOS GIROS Y DESPLAZAMIENTOS

    &1 &2 &3

    R1E=

    M1E=

    R2E=

    M2E=

    R3E=

    M3E=

    R4E=

    M4E=

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    &1 (3(.0# #!(.52 0.00 0.00

    &2 = #!(.52 1721.58 3(1.27 0.00 )

    &3 0.00 3(1.27 23#7.!0 782.53

    0.00 0.00 782.53 15!5.07

    &1 &2 &3 &1 0.0012 -0.000# 0.0001 -3.55E-005

    &2 = -0.000# 0.0007 -0.0001#2 7.0((E-005 )

    &3 0.0001 -0.0001 0.0005 -0.0002!(8

    0.0000 0.0001 -0.0003 0.0007738

    &1 0.000 *+,

    &2 = 0.000 *+,

    &3 0.000 *+,

    0.000 *+,

    DETERMINACION DE LAS REACCIONES Y LOS MOMENTOS

    &1 &2 &3

    %1 281.71 281.71 0.00 0.00

    &1 (3(.0# #!(.52 0.00 0.00

    %2 -281.71 -8!.08 1(5.!3 0.00 )

    &2 #!(.52 1721.58 3(1.27 0.00

    %3 0.00 -1(5.!3 58!.(0 782.53

    &3 0.00 3(1.27 23#7.!0 782.53

    %# 0.00 0.00 -782.53 -782.53

    0.00 0.00 782.53 15!5.07

    0.0000 0.00

    0.0000 0.00

    0.0000 0.00

    = 0.0000 0.00

    0.0000 0.000.0000 0.00

    0.0000 0.00

    0.0000 0.00

    0.00

    0.00

    0.00 0.0000

    R1

    M1

    R2

    M2

    R3

    M3

    R#

    M#

    R1

    M1

    R2

    M2

    R3

    M3

    R#

    M#

    R1

    M1

    R2

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    = 0.00

    0.00

    0.00

    0.00

    0.00

    M2

    R3

    M3

    R#

    M#

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    2 1.5

    3

    2.50 2.50

    2.08 -2.08

    VIGAS TRAMO 2-3 DATOS VIGAS

    210 = 0.3 f'c= 210

    217370.!5 "= 0.! E= 217370.7

    0.005# $= ! I= 0.005#

    %2 &2 %3 &3 %3

    !5.21 1(5.!3 -!5.21 1(5.!3 %2 521.!(

    1(5.!3 782.53 -1(5.!3 3(1.27 &2 3-#= 782.53

    -!5.21 -1(5.!3 3(1.27 -1(5.!3 %3 -521.!(

    1(5.!3 3(1.27 -1(5.!3 782.53 &3 782.53

    -1

    R12

    E= R21

    E= R23

    E=

    M12

    E= M21E= M

    23E=

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    0.00

    0.00

    0.00

    0.00

    0.000 0.00

    0.000 0.00

    0.000 0.00

    0.000 0.00

    0.00

    0.00

    0.00

    0.00

    0 0

    0 0.00

    3 0.00

    M1-M

    1

    E

    M2-M

    2

    E

    M3-M

    3

    E

    M#-M

    #

    E

    R1

    E=

    M1

    E=

    R2

    E=

    M2

    E=

    R3

    E=

    M3

    E=

    R#

    E=

    M#

    E=

    0 2 # ! 8

    -1#

    -12

    -10

    -8

    -!

    -#

    -2

    0

    Diagraa !" #$"r

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    3 -2.00

    5 -2.00

    5 -2.00

    ( -!.00

    ( -!.00

    15 -13.50

    15 -13.50

    -1!

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    0.30 0.30 R34E1.70 R43E

    2.!7 -2.!7 M34E 0.30 M43E

    TRAMO 3-#

    =0.3

    "=0.!

    $= 3

    &3 %#

    782.53 -521.!( 782.53 %3

    15!5.07 -782.53 782.53 &3

    -782.53 782.53 -782.53 %#

    782.53 -782.53 15!5.07

    R32

    E=

    M32

    E=

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    10 12 1# 1!

    a& C'r(a)("&

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    1.30

    -0.20

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