Estructutas y Cargas



ESTRUCTURAS Y CARGAS


I) METRADO DE CARGAS:


A) VIGA PRINCIPAL :

Cogiendo un tramo de la viga principal.




Hallando :


h : Altura de la losa
b : Ancho de la viga
At : Ancho tributario

h = L / 11 = 3.80 / 11 = 0.34 = 0.35
t = L / 21 = 3.80 / 21 = 0.18 = 0.19
b = h / 2 = 0.35 / 2 = 0.17 = 0.25
At = L / 2 = 3.80 / 2 = 1.90a) AZOTEA (4 NIVEL) :

C.M. :

Losa : 400 x 1.90 = 760 Kg/ml
Viga : 0.25 x 0.35 x 2400 = 210 Kg/ml
Parapeto : 180 x 1.00 = 180 Kg/ml

∑ C.M. = 1150 Kg/ml
∑ C.V. = 150 x 1.90 = 285 Kg/ml


b) (1,2,3 NIVEL) :

C.M. :

Losa : 610 x 1.90 = 1159 Kg/ml
Viga : 0.25 x 0.35 x 2400 = 210 Kg/ml
Muro : 180 x 2.60 = 468 Kg/ml

∑ C.M. = 1837 Kg/ml
∑ C.V. = 200x 1.90 = 380 Kg/ml


Resumen de METRADO de cargas: PISO
Nivel
h (Altura de la losa)
C.M. (Kg/ml)
C.V. (Kg/ml)
4
0.35
1150
285
3
0.35
1837
380
2
0.35
1837
380
1
0.35
1837
380


VIGA PRINCIPAL: Eje 2 al 7
Nivel
Sección ( b x h )
C.M. ( Kg /ml )
C.V. ( Kg /ml )
4
0.25 x 0.35
1150
285
3
0.25 x 0.35
1837
380
2
0.2 5x 0.35
1837
380
1
0.25 x 0.35
1837
380B) VIGA SECUNDARIA:

h = L / 14 = 3.25 / 14 = 0.23 = 0.25
b = h / 2 = 0.25 / 2 = 0.12 = 0.25


CARGAS:

Ancho tributario (para viga secundaria) = 1.00

PORTICOS: A al C

a) AZOTEA ( 4 NIVEL):

Losa : 400 x 1 = 400 Kg/ml
Viga : 0.25 x 0.35 x 2400 = 210 Kg/ml
Parapeto : 180 x 1 = 180 Kg/ml

∑ C.M. = 790 Kg/ml
∑ C.V. = 150 x 1 = 150 Kg/ml

b) (1,2,3 NIVEL) :C.M. :

Losa : 610 x 1.90 = 1159 Kg/ml
Viga : 0.25 x 0.35 x 2400 = 210 Kg/ml
Muro : 180 x 2.60 = 468 Kg/ml

∑ C.M. = 1837 Kg/ml
∑ C.V. = 200 x 1.90 = 380 Kg/ml


VIGA SECUNDARIA: Eje A al C
Nivel
Seccion (bxh)
C.M. (Kg/ml)
C.V. (Kg/ml)
4
0.25x0.35
790
150
3
0.25x0.35
1837
380
2
0.25x0.35
1837
380
1
0.25x0.35
1837
380





* CALCULO DE LA CARGA DE LASCOLUMNAS:

Nivel
at
P(CM+CV)
K
Kyat
n
bt
Sección
4
6.17
1435
1.25
11067.43
0.25
0.21
0.25 x 0.35
3
6.17
2217
1.25
18567.37
0.25
0.35
0.25 x 0.35
2
6.17
2217
1.25
18567.37
0.25
0.35
0.25 x 0.35
1
6.17
2217
1.25
18567.37
0.25
0.35
0.25 x 0.35
































II) CARGAS QUE SOPORTAN V.P. , V.S. Y COLUMNAS:a) AZOTEA(4 NIVEL):

C.M.
Losa : 400 x (3.47 x 3.42 ) = 4746.96 Kg/ml
V.P. : 3.42 x ( 0.25 x 0.35 ) x 2400 = 718.20 Kg/ml
V.S. : 3.47 x ( 0.25 x 0.35 ) x 2400 = 728.70 Kg/ml

∑ C.M. = 6193.86 Kg/ml
∑ C.V. = 150 x ( 3.47 x 3.42 ) = 1780.11 Kg/ml







b) (3,2,1 NIVEL):

C.M.
Losa : 610 x (3.47 x 3.42 ) = 7239.11 Kg/ml
V.P. : 3.42 x ( 0.25 x 0.35 ) x2400 = 718.20 Kg/ml
V.S. : 3.47 x ( 0.25 x 0.35 ) x 2400 = 728.70 Kg/ml
Columna : 0.25 x 0.25 x 2.6 x 2400 = 390 Kg/ml

∑C.M. = 9076.01 Kg/ml
∑C.V. = 200 x ( 3.47 x 3.42 ) = 2530.80 Kg/ml




NIVEL
Pt(Losa)
V.P.
V.S.
C.M.
C.V.
4
4746.96
718.20
728.70
6193.86
1780.11
3
7239.11
718.20
728.70
9076.01
2530.80
2
7239.11
718.20
728.70
9076.01
2530.80
1
7239.11718.20
728.70
9076.01
2530.80




NIVEL
Pt
V.P.
V.S.
COLUMNA
C.M.
C.V.
C.M.+C.V
SECCION
4
4746.96
718.20
728.70
-----------
6193.86
1780.11
7973.97
0.25 x 0.35
3
7239.11
718.20
728.70
390
9076.01
2530.80
11606.81
0.25 x 0.35
2
7239.11
718.20
728.70
390
9076.01
2530.80
11606.81
0.25 x 0.35
1
7239.11
718.20
728.70
390
9076.01
2530.80
11606.81
0.25x 0.35









III) CARGA SISMICA:

a) AZOTEA (4 NIVEL):

C.M.
Losa : WxA = 400 x [( 3.75 x 0.80 + 7 x 16.325 ) -
( 3.25 x 3.25 + 2.75 x 2.20 + 3.5 x 3.35 )]
= 35575 Kg/ml
V.P. : W x ∑L = 210 x 5 x 7 + 210 x 1 x 3
= 7980 Kg/ml
V.S. : W x ∑L = 210 x 2 x 16.325 + 210 x 1 x 12.975
= 9581.25 Kg/ml
Columna : 0.25 x 0.25 x 2400 x 2.60/2 x 17
= 3315 Kg/ml

∑C.M. :...