01.Memoria de Calculo de Losa Aligerada
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Transcript of 01.Memoria de Calculo de Losa Aligerada
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= 120
TABIQUERIA= 100CARGA MUERTA (D) = 520
CARGA VIVA (L) = 250
CARGAS DE ROTURA según Normas Peruana NP:
W = 1.4D + 1.7L = 1153
Carga por vigueta/metro lineal = W/2.5 = 461.2 Kg/m
W= 0.461 Ton/m
Kg/m²Kg/m²Kg/m²
Kg/m²Kg/m²Kg/m²Kg/m²
Kg/m²
Kg/m²
DISEÑO ESTRUCTURAL DE UNA LOSA ALIGERADA210 H(cm)= 204200 d(cm)= 17
Wu(T/m)= 0.461
L1 L2 L33.15 4.8 4.7
0.1907 0.728724825 1.0405825 0.42450.32688 0.66413 0.72771
0.03142 0.12007 0.17146 0.06990.0135 0.0274 0.0300
0.0357 0.1459 0.2186 0.08160.0151 0.0310 0.0340
0.0018 0.0073 0.0109 0.00410.00075 0.0015 0.00170
0.303 1.24 1.858 0.6940.513 1.053 1.156
Baston Balancin Balancin Baston
1 Ø 1/2"
Acero principal Acero principal Acero principal
14bd/fy = 0.567
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 1/2" 1Ø 1/2"
As min(cm²)=
As temp(cm²)=
Ø temp = Ø 1/4"@.25
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