Diseño de Losa
2
3) DISEÑO DE LOSA ALIGERADA Datos: f´c = 210.0 kg/cm2 fy = h = 10 cm r = 2.0 cm Wu = 985.00 kg/m2 Peso x Vigueta = 0.39 Tn/m Nº Tramos = 5 * Primer tanteo a=d/5 A B C D 2.88 2.88 2.45 0.8 1/16 1/10 1/10 1/2 1/14 1/16 1/14 0.051 0.327 0.280 0.168 0.233 0.204 0.169 As = a = 0.17 1.08 0.93 0.56 0.77 0.68 0.56 1Φ 3/8 1Φ 3/8 1Φ 3/8 1Φ 3/8 1Φ 3/8 1Φ 3/8 1Φ 3/8 Varillas (Φ) 4200.0 kg/cm2 Longitudes (m) Coeficientes Momento (Tn-m) As (cm2) ) 2 / ( * * a d fy M A s b c f fy As a * ` * 85 . 0 *
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Transcript of Diseño de Losa
3) DISEÑO DE LOSA ALIGERADA
Datos:f´c = 210.0 kg/cm2
fy =
h = 10 cm
r = 2.0 cm
Wu = 985.00 kg/m2
Peso x Vigueta = 0.39 Tn/m
Nº Tramos = 5
* Primer tanteo a=d/5
A B C D
2.88 2.88 2.45 0.8
1/16 1/10 1/10 1/2
1/14 1/16 1/14
0.051 0.327 0.280 0.168
0.233 0.204 0.169 As =
a =
0.17 1.08 0.93 0.56
0.77 0.68 0.56
1Φ 3/8 1Φ 3/8 1Φ 3/8 1Φ 3/8
1Φ 3/8 1Φ 3/8 1Φ 3/8Varillas (Φ)
4200.0 kg/cm2
Longitudes
(m)
Coeficientes
Momento
(Tn-m)
As (cm2)
)2/(** adfy
MAs
bcf
fyAsa
*`*85.0
*
1º Tanteo 2º Tanteo 3º Tanteo 4º Tanteo 5º Tanteo0.21 0.17 0.17 0.17 0.17
0.05 0.04 0.04 0.04 0.04
Ø (") As (cm2)
1/4 0.32
3/8 0.71
1/2 1.29
5/8 2.00
3/4 2.84