Calculo de Losas Aligeradas CUEVA PORTAL
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LOSA ALIGERADA TABLA peso propio de losas aligeradas H Peso propio 17 280 20 300 25 350 METRADO DE CARGAS: CARGA PERMANENTE O CARGA MUERTA (D): PESO PROPIO = 300 ACABADOS= 100 TABIQUERIA= 100 CARGA MUERTA (D) = 500 CARGA VIVA (L) = 300 CARGAS DE ROTURA según Normas Peruana NP: W = 1.5D + 1.8L = 1290 rga por vigueta/metro lineal = W/2.5 516 Kg/m W= 0.516 Ton/m Kg/m² Kg/m² Kg/m² Kg/m² Kg/m² Kg/m² Kg/m² Kg/m² Kg/m²
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Transcript of Calculo de Losas Aligeradas CUEVA PORTAL
LOSA ALIGERADA
TABLA peso propio de losas aligeradasH Peso propio17 28020 30025 350
METRADO DE CARGAS:CARGA PERMANENTE O CARGA MUERTA (D):
PESO PROPIO = 300ACABADOS= 100
TABIQUERIA= 100CARGA MUERTA (D) = 500
CARGA VIVA (L) = 300
CARGAS DE ROTURA según Normas Peruana NP:
W = 1.5D + 1.8L = 1290
Carga por vigueta/metro lineal = W/2.5 = 516 Kg/m
W= 0.516 Ton/m
Kg/m²Kg/m²Kg/m²
Kg/m²Kg/m²Kg/m²Kg/m²
Kg/m²
Kg/m²
DISEÑO ESTRUCTURAL DE UNA LOSA ALIGERADA175 H(cm)= 304200 d(cm)= 27
Wu(T/m)= 0.516
∆ ∆ ∆ ∆L1 L2 L3
4.75 6.8 6.8
∆ ∆ ∆ ∆
0.4851 1.72089225 2.385984 0.99420.83159 1.49124 1.70427
0.03802 0.13489 0.18703 0.07790.0163 0.0292 0.0334
0.0434 0.1661 0.2424 0.09150.0183 0.0331 0.0380
0.0018 0.0069 0.0101 0.00380.00076 0.0014 0.00158
0.5670.488 1.87 2.727 1.030
0.824 1.490 1.708
Baston Balancin Balancin Baston
2Ø 3/8"
Acero principal Acero principal Acero principal
14bd/fy = 0.900
0.0018bh=0,0018x100x5= 0.900
f´c(kg/cm²)=fy(kg/cm²)=
WL 24²̸� WL 10²̸� WL 10²̸� WL 24²̸�
WL 14²̸� WL 16²̸� WL 14²̸�
M( )ˉM(⁺)
K( )ˉK(⁺)
ω( )ˉω(⁺)
ρ( )ˉρ(⁺)
As( ) cm²=ˉAs(⁺) cm²=
Ø( )ˉ 1Ø 3/8" 1Ø1/2" 1Ø 3/8"Ø(⁺) 1Ø 1/2" 1Ø 3/8" 1Ø 1/2"
As min(cm²)=
As temp(cm²)=
Ø temp = Ø 1/4"@.25
B38
pc: Ver tabla de combinaciones de area de acer
CANTIDAD DE FIERROS VS.Diametro
1 2 3 4 5 6Ø
1/4" 0.32 0.64 0.96 1.28 1.60 1.928mm 0.50 1.00 1.50 2.00 2.50 3.003/8" 0.71 1.42 2.13 2.84 3.55 4.26
12mm 1.13 2.26 3.39 4.52 5.65 6.781/2" 1.27 2.54 3.81 5.08 6.35 7.625/8" 1.98 3.96 5.94 7.92 9.9 11.883/4" 2.85 5.70 8.55 11.4 14.25 17.11" 5.07 10.14 15.21 20.28 25.35 30.42
1 3/8" 10.06 20.12 30.18 40.24 50.3 60.36
DiametroØ 1/4" 8mm 3/8" 12mm 1/2" 5/8"
1/4" 0.64 0.82 1.03 1.45 1.59 2.38mm 0.82 1 1.21 1.63 1.77 2.483/8" 1.03 1.21 1.42 1.84 1.98 2.69
12mm 1.45 1.63 1.84 2.26 2.4 3.111/2" 1.59 1.77 1.98 2.4 2.54 3.255/8" 2.3 2.48 2.69 3.11 3.25 3.963/4" 3.17 3.35 3.56 3.98 4.12 4.83
Area(cm²)
COMBINACION DE AREAS DE ACEROS EN cm²
1" 5.39 5.57 5.78 6.2 6.34 7.051 3/8" 10.38 10.56 10.77 11.19 11.33 12.04
7 8 9 10
2.24 2.56 2.88 3.203.5 4.00 4.5 5.00
4.97 5.68 6.39 7.107.91 9.04 10.17 11.38.89 10.16 11.43 12.7
13.86 15.84 17.82 19.819.95 22.8 25.65 28.535.49 40.56 45.63 50.770.42 80.48 90.54 100.6
3/4" 1" 1 3/8"3.17 5.39 10.383.35 5.57 10.563.56 5.78 10.773.98 6.34 11.194.12 6.34 11.334.83 7.05 12.045.7 7.92 12.91
7.92 10.14 15.1312.91 15.13 20.12
CANTIDAD DE FIERROS VS.Diametro
1 2 3 4 5 6 7 8 9Ø
1/4" 0.32 0.64 0.96 1.28 1.60 1.92 2.24 2.56 2.888mm 0.50 1.00 1.50 2.00 2.50 3.00 3.5 4.00 4.53/8" 0.71 1.42 2.13 2.84 3.55 4.26 4.97 5.68 6.39
12mm 1.13 2.26 3.39 4.52 5.65 6.78 7.91 9.04 10.171/2" 1.27 2.54 3.81 5.08 6.35 7.62 8.89 10.16 11.435/8" 1.98 3.96 5.94 7.92 9.9 11.88 13.86 15.84 17.823/4" 2.85 5.70 8.55 11.4 14.25 17.1 19.95 22.8 25.651" 5.07 10.14 15.21 20.28 25.35 30.42 35.49 40.56 45.63
1 3/8" 10.06 20.12 30.18 40.24 50.3 60.36 70.42 80.48 90.54
DiametroØ 1/4" 8mm 3/8" 12mm 1/2" 5/8" 3/4" 1" 1 3/8"
1/4" 0.64 0.82 1.03 1.45 1.59 2.3 3.17 5.39 10.388mm 0.82 1 1.21 1.63 1.77 2.48 3.35 5.57 10.563/8" 1.03 1.21 1.42 1.84 1.98 2.69 3.56 5.78 10.77
12mm 1.45 1.63 1.84 2.26 2.4 3.11 3.98 6.34 11.191/2" 1.59 1.77 1.98 2.4 2.54 3.25 4.12 6.34 11.335/8" 2.3 2.48 2.69 3.11 3.25 3.96 4.83 7.05 12.043/4" 3.17 3.35 3.56 3.98 4.12 4.83 5.7 7.92 12.911" 5.39 5.57 5.78 6.2 6.34 7.05 7.92 10.14 15.13
1 3/8" 10.38 10.56 10.77 11.19 11.33 12.04 12.91 15.13 20.12
Area de su seccion(cm²)
COMBINACIONES DE AREAS DE ACEROS EN cm²
