Diseño Estructural

ESFUERZOS EN LOS MATERIALES
a) CONCRETO F´c= 210 Kg/cm2
b) ACERO Fy= 2,800 Kg/cm2
c) REC.= 2.5 cm en Losa
d) REC.= 3 cm en Viga



CUANTIFICACION DE CARGAS
A) Calculo del Espesor de Diseño.
Espesor en losa Crítica.
L-1
5.30 mts

5.25 mts

h = 5.3(0.8 + 2,800/14,000) = 5.30 = 0.12 mts
36 + 9 (5.1/5.05) 45.09

Espesor en losa en Voladizo.
L-16

2.6 mts

1.7 mts
tmin = 1.7/10 (0.4 + 2,800/7,000) = 0.14 mts

USAR: (14 cm) Como Espesor General de Losa.

B) Calculo de Carga de Diseño:
CargaMuerta en Losa Entrepiso:
Peso Propio de la Losa_______2.4 (0.14) = 0.336 Ton/m2
Peso del Mortero__________0.025 (1.8) = 0.045 Ton/m2
Peso del Mosaico__________0.035 (2.3) = 0.081 Ton/m2
Pandereta________________________ = 0.100 Ton/m2
Total = 0.562 Ton/m2
Carga Viva en Losa Entrepiso:
UsoResidencial___________________ = 0.200 Ton/m2
Carga de Diseño en Losa Entrepiso:
Wdis. = [1.4 (0.562)] + [1.7 (0.200)] = 1.13 Ton/m2

DISEÑO DE LOSAS
1
Y

X


5.30 mts
5.25 mts

5.25 mts
m= 5.25/5.30 = 0.99 > 0.5 Losa en 2 Direcciones
k = 1.13 (5.25)2 = 31.15
m+x = 0.0376 (31.15) = 1.17 Ton/m
m-x = 0.0490 (31.15) = 1.53 Ton/m
m+y = 0.0370 (31.15) = 1.15 Ton/m
m-y = 0.0490 (31.15) = 1.53 Ton/m
2
Y

X



YX
1
2.20 mts
2.20 mts

3.60 mts
m = 2.20/3.60 = 0.61 > 0.5 Losa en 2 Direcciones
k = 1.13 (2.20)2 = 5.47
m+x = 0.0310 (5.47) = 0.17 Ton/m
m-x = 0.0410 (5.47) = 0.22 Ton/mm+y = 0.0515 (5.47) = 0.28 Ton/m
m-y = 0.0683 (5.47) = 0.37 Ton/m

3
Y

X


2.65 mts
2.65 mts

3.60 mts
m = 2.65/3.60 = 0.74 > 0.5 Losa en 2 Direcciones
k =1.13 (2.65)2 = 7.94
m+x = 0.0310 (7.94) = 0.25 Ton/m
m-x = 0.0410 (7.94) = 0.33 Ton/m
m+y = 0.0446 (7.94) = 0.35 Ton/m
m-y = 0.0592 (7.94) = 0.47 Ton/m
4
Y

X



Y

X
1
1.85 mts1.85 mts

3.60 mts

m = 1.85/3.60 = 0.52 > 0.5 Losa en 2 Direcciones
k = 1.13 (1.85)2 = 3.87
m+x = 0.0310 (3.87) = 0.12 Ton/m
m-x = 0.0410 (3.87) = 0.16 Ton/m
m+y = 0.0616 (3.87) = 0.24 Ton/m
m-y = 0.0816 (3.87) = 0.32 Ton/m

5
YX


5.00 mts
3.80 mts

3.80 mts
m = 3.80/5.00 = 0.76 > 0.5 Losa en 2 Direcciones
k = 1.13 (3.80)2 = 16.32
m+x = 0.0434 (16.32) = 0.71 Ton/m
m-x = 0.0578 (16.32) = 0.94 Ton/m
m+y =...