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