Vigas alma de entrepiso

diseno de las vigas DE ALMA ABIERTA entrepiso

VAA-1
WS=840(2.75)+150+(12.5+18X4.1)=3383KG/ML

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REACCIONES=3383(9.2)/2=15562KG
Mmax=2406(9.2)2/8=35792.14KG/M
MODULOS
9.2/16=.575 = 16 MODULOS DE .575M

DETALLE
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ΣMT=(3383)(4.6)(2.3)-15562(4.6)+C(.575)=0
C=62249KG

DETALLE
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-VERTICAL
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P/2=(3383)(.575)/2=972.615KG
Σfy=15562-973=14589KG/ML

-DIAGONAL[pic]
Σfx=-62249+DX=0
D=62249/Cos45=88033.38KG
Fy=15562-973-Dy=0
D=14589/Sen45=22463.69KG

-C.INFERIOR
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Esf.a tensión resistente
Area=T/ft=62249/1930=32.25cm2

PROPUESTA: 2 PER 6”X4”DOBLE CUERDA COLOR BLANCO
SECCION: 152X102
PESO: 12.13 Kg
AREA: 15.47 cm2
SX: 53.3 cm3
IX: 273.64 cm4
RX: 4.21cm




-C.SUPERIOR
[pic]
Esf.a tensión resistente
Area=T/ft=62249/1930=32.25cm2PROPUESTA: 2 PER 6”X4”DOBLE CUERDA COLOR BLANCO
SECCION: 152X102mm
PESO: 12.13 Kg
AREA: 15.47 cm2
SX: 53.3 cm3
IX: 273.64 cm4
RX: 4.21cm

Relacion de esbeltez= KL/RX= (0.65)(57.5)/4.21= 8.8776 = 9
Carga adimisible en compresión = (Fa)(area) = 2042 x 30.94 = 63179.48 Ps= 62249

DISEÑO DIAGONAL
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DETALLE

Area= t/ft= 22463.69/1930 = 11.639 cm2 ft=1930kg/cm2PROPONER: PER 3”X3” ROJO
SECCION: 76X76mm
PESO: 10.24 Kg
AREA: 13.06 cm2
SX: 28.45cm3
IX: 108.40cm4
RX: 2.88cm

DISEÑO VERTICAL
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PROPONER: PER 3”X3” ROJO
SECCION: 76X76mm
PESO: 10.24 Kg
AREA: 13.06 cm2
SX: 28.45cm3
IX: 108.40cm4
RX: 2.88cm

K= .65 X .575/RX = 37375/2.88 = 12.97 Fa=1483
P adm = (1483)(13.06) = 26498.7 Ps=14589 Kg/ml

|SECCION |EFECTO|CARGA |PERFIL |PESO UNIT K/ML|LONG. |CANT. |PESO TOTAL. |
|C.SUP |Comprecion |62249 |2 PER 6”x6” |12.13 |9.2m |2 |223.19 |
|C.INF |Tension |62249 |2 PER 6”x6” |12.13 |9.2m |2 |223.19 |
|DIAGONAL |Tencion|22463 |1PER 3”x3” |10.24 |.9036m |16 |148.04 |
| | | |ROJO | | | | |
|VERTICAL |comprecion |14789 |1PER 3”x3” |10.24 |.575m |17 |100.096 |
| || |ROJO | | | | |
| | | | |WVAA-1 |75.49 Kg/ml |PESO TOTAL |694.51 |

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VAA-2- ENTREPISO
WS=840(6.00)+150=5190 KG/ML

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REACCIONES=5190(9.2)/2=23874KG
Mmax=5190(9.2)2/8=54910.20KG/MMODULOS
9.2/16=.575 = 16 MODULOS DE .575M

DETALLE
[pic]
ΣMT=(5190)(4.6)(2.3)-23874(4.6)+C(.575)=0
C=95,496KG

DETALLE
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-VERTICAL
[pic]
DETALLE

P/2=(5190)(.575)/2=1492.125KG
Σfy=23874-1492.125=22381.875KG/ML

-DIAGONAL
[pic]
DETALLE

Σfx=-95496+DX=0
D=95496/Cos45=13,505.74KG
Fy=23874-1492.125-Dy=0
D=22381.88/Sen45=31,652.76KG

-C.INFERIOR
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DETALLE

Esf.atensión resistente
Area=T/ft=95496/1930=49.47cm2

PROPUESTA: 2 x 12-TENS-HYL-10
SECCION: 305X173
PESO: 26.8X2=53.6
AREA: 34.6X2= 69.2 cm2
SX: 303.19 cm3
IX: 4612.38 cm4
RX: 11.46 cm




-C.SUPERIOR
[pic]
DETALLE

Esf.a compresión resistente
Area=T/ft=95496/1930=49.47cm2

PROPUESTA: 2 x 12-TENS-HYL-10
SECCION: 305X173
PESO: 26.8X2=53.6
AREA: 34.6X2= 69.2 cm2
SX: 303.19 cm3IX: 4612.38 cm4
RX: 11.46 cm

Relacion de esbeltez= KL/RX= (0.65)(57.5)/11.46= 3.25 = 4
Carga adimisible en compresión = (Fa)(area) = 1507.4 x 69.2 = 104,312.08 Ps= 95,496 KG


DISEÑO DIAGONAL
[pic]
DETALLE

Area= t/ft= 31652.76/1930 = 16.40 cm2 ft=1930kg/cm2

PROPONER: 8-TENS-HYL-10
SECCION: 203X152mm
PESO: 19.83 Kg
AREA: 24.67 cm2
SX: 148.5cm3
IX: 1508.74cm4
RX: 7.82cm...