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Momento M11 PLACA 1‐ TRAMOMomento POSITIVO
LOSA b = 100 cm h = 14 cm d = cm
Yc= 1.5 2.420 T‐m fck= Kg/cm2 2.0 cm
1.0 5000 fcd = T/cm2
fyd = T/cm2 ρ =
Cálculo de parámetros
1 ‐ 0.4 =
=
100 12.0 0.17
Como: µ < µlim,r
Sección Simplemente Armada
ω = 1.7 =
100
Cálculo del acero mínimo
As+min = 100 14 =
Como: A+s > As+min
Se adopta:
Disposiciones
USAR: Ø 10 16
8
Ø As[cm2] S [cm] Nº/1m Nº Adop
6 0.283 5.71 17.51
4.954.348
0.0017 2.38
As = 4.95 cm2
S.S.A.
0.85 0.7225 0.1008 0.1077
A+s = 0.107712 0.16667
=
0.503 10.15 9.85 7
10 0.785 15.86 6.30
= 0.4712
3.5
µ =1 242
= 0.1008
0.4712 0.2600
ωlim,r = 0.68 0.4712 0.3204
12.0
M11+ = 250 rec =
Yf = fyk= Kg/cm2 0.1667 E =
+4.347826
2.1
µlim,r = 0.68 0.4712
2100000
Ys = 1.15 4.3478 0.0017
εlim,r =2.625
Momento M22 PLACA 1‐ TRAMOMomento POSITIVO
LOSA b = 100 cm h = 14 cm d = cm
Yc= 1.5 0.135 T‐m fck= Kg/cm2 2.5 cm
1.0 5000 fcd = T/cm2
fyd = T/cm2 ρ =
Cálculo de parámetros
1 ‐ 0.4 =
=
100 11.5 0.17
Como: µ < µlim,r
Sección Simplemente Armada
ω = 1.7 =
100
Cálculo del acero mínimo
As+min = 100 14 =
Como: A+s < As+min
Se adopta:
Disposiciones
USAR: Ø 8 20
8 0.503 21.12 4.73
10 0.785 33.00 3.03
Ø As[cm2] S [cm] Nº/1m Nº Adop
6 0.283 11.88 8.42 6
0.274.348
0.0017 2.38
Asmín = 2.38 cm2
S.S.A.
0.85 0.7225 0.0061 0.0061
A+s = 0.006111.5 0.16667
=
11.5
M11+ = 250 rec =
µ =1 13.5
= 0.0061
0.2600
ωlim,r = 0.68 0.4712 0.3204
0.0017
εlim,r =2.625
= 0.4712
Yf = fyk= Kg/cm2 0.1667 E = 2100000
4.347826
2.1
µlim,r = 0.68 0.4712 0.4712
Ys = 1.15 4.3478
3.5 +
Momento M11 PLACA 2‐ DESCANSOMomento POSITIVO
LOSA b = 100 cm h = 14 cm d = cm
Yc= 1.5 0.113 T‐m fck= Kg/cm2 2.5 cm
1.0 5000 fcd = T/cm2
fyd = T/cm2 ρ =
Cálculo de parámetros
1 ‐ 0 =
=
100 ### 0.17
Como: µ < µlim,r
Sección Simplemente Armada
ω = 2 =
100
Cálculo del acero mínimo
As+min = 100 14 =
Como: A+s < As+min
Se adopta:
Disposiciones
USAR: Ø 8 20
Ys = 1.15 4.3478 0.0017
εlim,r =2.625
= 0.4712
3.5 +4.347826087
11.5
M22‐ = 250 rec =
Yf = fyk= Kg/cm2 0.1667 E = 2100000
2.1
µlim,r = 0.68 0.4712 0.4712 0.2600
ωlim,r = 0.68 0.4712 0.3204
µ =1 11.3
= 0.0051
S.S.A.
0.85 0.7225 0.0051 0.0051
A+s = 0.005111.5 0.16667
= 0.234.348
0.0017 2.38
Asmín = 2.38 cm2
Ø As[cm2] S [cm] Nº/1m Nº Adop
8 0.503 21.12 4.73
10 0.785 33.00 3.03 8
12 1.131 47.52 2.10
Momento M22
Momento POSITIVO PLACA 2‐ DESCANSOLOSA b = 100 cm h = 14 cm d = cm
Yc= 1.5 0.015 T‐m fck= Kg/cm2 2.5 cm
1.0 5000 fcd = T/cm2
fyd = T/cm2 ρ =
Cálculo de parámetros
1 ‐ 0 =
=
100 ### 0.17
Como: µ < µlim,r
Sección Simplemente Armada
ω = 2 =
100
Cálculo del acero mínimo
As+min = 100 14 =
Como: A+s < As+min
Se adopta:
Disposiciones
USAR: Ø 8 20
11.5
M22 = 250 rec =
Yf = fyk= Kg/cm2 0.1667 E = 2100000
Ys = 1.15 4.3478 0.0017
εlim,r =2.625
= 0.4712
3.5 +4.347826087
2.1
µlim,r = 0.68 0.4712 0.4712 0.2600
ωlim,r = 0.68 0.4712 0.3204
µ =1 1.5
= 0.0007
S.S.A.
0.85 0.7225 0.0007 0.0007
A+s = 0.000711.5 0.16667
= 0.034.348
0.0017 2.38
Asmín = 2.38 cm2
Ø As[cm2] S [cm] Nº/1m Nº Adop
8 0.503 21.12 4.73 8
10 0.785 33.00 3.03
12 1.131 47.52 2.10
Momento M11 PLACA 1‐2 Momento NEGATIVO
LOSA b = 100 cm h = 14 cm d = cm
Yc= 1.5 2.720 T‐m fck= Kg/cm2 2.5 cm
1.0 5000 fcd = T/cm2
fyd = T/cm2 ρ =
Cálculo de parámetros
1 ‐ 0.4 =
=
100 11.5 0.17
Como: µ < µlim,r
Sección Simplemente Armada
ω = 1.7 =
100
Cálculo del acero mínimo
As+min = 100 14 =
Como: A+s > As+min
Se adopta:
Disposiciones
USAR: Ø 10 14
11.5
M11‐ = 250 rec =
Yf = fyk= Kg/cm2 0.1667 E = 2100000
Ys = 1.15 4.3478 0.0017
εlim,r =2.625
= 0.4712
3.5 +4.347826
2.1
µlim,r = 0.68 0.4712 0.4712 0.2600
ωlim,r = 0.68 0.4712 0.3204
µ =1 272
= 0.1234
S.S.A.
0.85 0.7225 0.1234 0.1340
A+s = 0.134011.5 0.16667
= 5.914.348
0.0017 2.38
As = 5.91 cm2
Ø As[cm2] S [cm] Nº/1m Nº Adop
6 0.283 4.79 20.89
8 0.503 8.51 11.75 6
10 0.785 13.30 7.52