0.175 m

210 kg/cm2 N Pasos Ancho Paso Descanzo

4200 kg/cm2 6 0.25 1.25 = 2.75

100 kg/m2

200 kg/m2

t = Ln ; Ln ; Ln ( 3.5 )

30 25

t = 2.75 ; 2.75 ; 2.75 (3.5 ) 0.09166667 0.11 9.63 9.83

30 25

t = 9.82666667 10 cm

ALUMNO: Julio Luis Coronel OblitasMETRADO DE ESCALERA

Pterminado

S/C

Para Predimensionamiento de Losa

Datos

Casa Habitacin

Contrapaso

fc

fy

A. Predimensionamiento

Peralte de la Losa

3.80

8.42

.25

3.35

.30

.50

.15

.25

.90

.40

1.20

3.80

.20 3.65 .40 .75 .15

1.95 3.95

7.10

.20

.95

.25

.25

.25

.25

.25

.25

2.75

.90

8.42

SALA

.15 .90 4.07

1.25

BAO HALL

= arctg ( 17.5 )

25

= 35

x= 1 x= 1 x= 1.22 m

cos cos 35

Peso de la losa = 2400 Kg/m3 x 1.22 m x 0.1 m = 292.8 Kg/m

0.04375

Peso De Peldaos = 2400 Kg/m3 x ( 0.25 x 0.175 ) m2 x 4 = 210 Kg/m 0.021875

2 0.0875

Piso Terminado = 100 Kg/m2 x 1 ml = 100 Kg/m

= 602.8 Kg/m C.D.

SC = C.L. = 200 Kg/m2 x 1 ml = 200 Kg/m

Cu = 1.4 C.D. + 1.7 C.L. =

1.4 602.8 + 1.7 200 = 1183.92 Kg/m

843.92 340

B2. Carga Viva

A1. Clculo de la pendiente

B.Metrado de Cargas

B1. Carga Muerta

x

a

.25

.175

Peso de la losa = 2400 Kg/m3 x 0.1 m x 1.25 m = 300 kg/m

Piso Terminado = 120 Kg/m2 x 1.25 m = 150 kg/m

= 450 kg/m

SC = C.L. = 200 Kg/m2 x 1.2 m = 240 Kg/m

Cu = 1.4 C.D. + 1.7 C.L. =

1.4 450 + 1.7 240 = 1038 Kg/m

630 408

Lxq = 3.5 m x 1038 Kg/m

FR = 3633 Kg

q = 1038 Kg/m

3.5 12.25

M(+) = q x L2 = 3633 x ( 3.5 )2 = 44504.25 = 2781.51563

16 16 16

M(+) = q x L2 = 3633 x ( 3.5 )2 = 44504.25 = 4450.425

10 10 10

B3. Carga Muerta Descanzo

Seccion del Descanzo

B4. Carga Viva Descanzo

C. Idealizacin de la Escalera - Primer y Segundo Tramo

0.50 0.252.75