Item Muro De Contencion

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Item: Muro de contenciΓ³n Piedra Desplazadora: 50%

οƒ˜ Volumen Total 𝑉 = [1.60 βˆ— 0.4 + (

0.25 + 0.40 ) βˆ— 2.45] βˆ— 22 2

𝑉 = 31.6 π‘š3 οƒ˜ Rendimiento del hormigΓ³n por m3 ο‚·

Volumen de HormigΓ³n π‘‰π»π‘œπ‘Ÿπ‘šπ‘–π‘”Γ³π‘› = 15.8π‘š3

DosificaciΓ³n de concretos Tipo de concreto

Resistencia Psi o (lb/pulg2)

Resistencia (Kg/cm2)

1:2:2 1:2:3 1:2:4 1:3:4 1:3:6

3500 3000 2500 2000 1500

246 210 175 140 105

Cemento (Kg) 420 350 300 260 210

Materiales Arena Grava Gravilla Agua (m3) (m3) (m3) (Lt) 0,67 0,402 0,268 220 0,56 0,504 0,336 180 0,48 0,576 0,384 170 0,63 0,504 0,336 170 0,5 0,6 0,4 160

DosificaciΓ³n a usar (1:3:4) πΆπ‘’π‘šπ‘’π‘›π‘‘π‘œ 260 𝐾𝑔 π΄π‘Ÿπ‘’π‘›π‘Ž 0.63 π‘š3 πΊπ‘Ÿπ‘Žπ‘£π‘Ž 0.504 π‘š3 πΊπ‘Ÿπ‘Žπ‘£π‘–π‘™π‘™π‘Ž 0.336 π‘š3 π΄π‘”π‘’π‘Ž 170 𝐿𝑑

οƒ˜ Rendimiento de la piedra por m3 ο‚·

Volumen De piedra π‘‰π‘ƒπ‘–π‘’π‘‘π‘Ÿπ‘Ž = 15.8π‘š3 15.8 π‘š3 π‘₯

π‘‰π‘œπ‘™π‘‘π‘œπ‘‘π‘Žπ‘™ = 31.6 π‘š3 1 π‘š3 π‘₯ = 0.5 π‘š3

οƒ˜ Rendimiento de la madera por m3 x ο‚· Tablas 𝐴 = 22 βˆ— 2.45 (3.28 𝑓𝑑)2 3 𝐴 = 53.9 π‘š βˆ— 1 π‘š2 2 𝐴 = 579.88 𝑓𝑑 ο‚·

Costillas 𝐿 +1 π‘ π‘’π‘π‘Žπ‘Ÿπ‘Žπ‘π‘–π‘œπ‘› 22π‘š 𝑁°𝑑𝑒 π‘π‘œπ‘ π‘‘π‘–π‘™π‘™π‘Žπ‘  = + 1 = 45 0.5π‘š 𝑁°𝑑𝑒 π‘π‘œπ‘ π‘‘π‘–π‘™π‘™π‘Žπ‘  =

4" βˆ—

0.33 𝑓𝑑 βˆ— 2.45π‘š βˆ—

1𝑓𝑑 = 0.33 𝑓𝑑 12"

3.28 𝑓𝑑 βˆ— 45 = 119.33 𝑓𝑑 2 1π‘š

ο‚·

Puntales

ο‚·

𝑁°𝑑𝑒 π‘π‘’π‘›π‘‘π‘Žπ‘™π‘’π‘  = π‘ π‘’π‘π‘Žπ‘Ÿπ‘Žπ‘π‘–π‘œπ‘› + 1

ο‚·

𝑁°𝑑𝑒 π‘π‘’π‘›π‘‘π‘Žπ‘™π‘’π‘  =

𝐿

22π‘š 4π‘š

+1=6

8" βˆ—

1𝑓𝑑 = 0.66 𝑓𝑑 12"

0.66 𝑓𝑑 βˆ— 2.45π‘š βˆ—

3.28 𝑓𝑑 βˆ— 6 = 32.16 𝑓𝑑 2 1π‘š

Madera Total = 731.37 ft2 731.37 𝑓𝑑 2 π‘₯ π‘₯ = 23.14 𝑓𝑑 2

31.6 π‘š3 1 π‘š3

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