Muros con Contrafuertes

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Datos Suelo Tipo I 1.73 β = 0 Ka = 0.3073 Ø = 32 Kp = 3.2546 σs [T/m³] = 30 f'c [kg/cm²] = 240 Sobrecarga [T/m] = 1.5 Fy [kg/cm²] = 4200 hf [m] = 1.5 Ru [kg/cm²] = 45.37 H [m] = 10 Predimencionamiento Asumo b [m] = ≥ 20 cm 0.35 B[m] = 5 5 De [m] = 1.666666666667 1.75 D [m] = 0.833333333333 0.9 T = 2.35 Separación entre contrafuertes Asumo s [m] = 0,75 + 0,3*H 3.75 3.5 s [m] = 3 s [m] = 3.333333333333 Espesor del contrafuerte Asumo Co [m] = H/20 0.5 0.4 s' [m] = s - Co 3.1 Presión Activa Presión Pasiva pr [t/m/ml] = 5.32 pp [t/m/ml] = 8.45 ps [t/m/ml] = 0.46 pa [t/m/ml] = 5.78 6.33 26.58 Presión Activa en Contrafuerte Presión Pasiva en Contrafuerte PAC [T] = 93.04 PPC [T] = 22.17 ɣs {T/m³] = (0,40→0,70)*H (B/4→B/2) (H/14→H/12) (0,30→0,60)*H (1/3→1/2)*H EP [T/m] = EA [T/m] = De D hf 3 1 2 4 6

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Hoja para diseñar muros con contrafuertes

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Hoja1 (2)Datos Suelo Tipo Is {T/m] =1.73 =0Ka =0.3073 =32Kp =3.2546s [T/m] =30f'c [kg/cm] =240Sobrecarga [T/m] =1.5Fy [kg/cm] =4200hf [m] =1.5Ru [kg/cm] =45.37H [m] =10Predimencionamiento Asumo

b [m] = 20 cm0.35B[m] =(0,400,70)*H55De [m] =(B/4B/2)1.66666666671.75D [m] =(H/14H/12)0.83333333330.9T =2.35Separacin entre contrafuertesAsumo s [m] = 0,75 + 0,3*H3.753.5H' [m] =0.8670520231Momento de Volteos [m] = (0,300,60)*H3HT [m] =10.8670520231z [m] =3.62s [m] = (1/31/2)*H3.3333333333Mv [T-m] =337.01Espesor del contrafuerteAsumo Co [m] = H/200.50.4s' [m] =s - Co3.1Presin ActivaPresin PasivaElementorea [m]Volumen [m] W=V* [T]d [m]M=W*d [T-m]pr [t/m/ml] =5.32pp [t/m/ml] =8.45Hormignps [t/m/ml] =0.461.004.5015.7537.802.5094.50pa [t/m/ml] =5.78EP [T/m] =6.332.003.1911.1526.752.2058.86EA [T/m] =26.583.002.508.7621.022.2848.00Presin Activa en ContrafuertePresin Pasiva en Contrafuerte4.0015.936.3715.290.588.92PAC [T] =93.04PPC [T] =22.17Suelo5.0021.3974.85129.493.83495.286.005.0117.5230.312.4774.75N [T] =260.65MR [T-m] =780.31Factor de Seguridad al Volteo F.S.V2.32OK

0.60fr156.39Factor de Seguridad al Deslizamiento F.S.V1.68OKUbicacin de la Normal1.70OKe0.80M208.33Esfuerzos Admmisibles en el Sueloqs1 [T/m] =29.18OKqs2 [T/m] =0.61OKDiseo de la Pantalla# Dovelas5Hs [m] =9.10DovelaPresin sobre la PantallaPresiones Promedio MayoradasAltura de c/dovela1.820.000.000.731.000.972.182.001.943.633.002.905.084.003.876.535.004.84DovelaPresinMomentos [T-m]Cortantes [T]M1M2M3M4M5V1V21.000.730.440.500.700.440.631.121.692.002.181.311.492.091.311.903.375.063.003.632.182.493.492.183.175.628.444.005.083.053.494.883.054.447.8711.815.006.533.924.486.283.925.7110.1215.18Verificacin del Espesor de la PantallaPor Momento12.40OKPor Cortantevc [kg/cm] vp [kg/cm] OK2.448.21Dovelad [cm]M1As1M2As2M3As3M4As4M5As51.0039.000.4412.870.5012.870.7012.870.4412.870.6312.872.0050.001.3116.501.4916.502.0916.501.3116.501.9016.503.0061.002.1820.132.4920.133.4920.132.1820.133.1720.134.0072.003.0523.763.4923.764.8823.763.0523.764.4423.765.0083.003.9227.394.4827.396.2827.393.9227.395.7127.39

Hoja1 (3)Datos Suelo Tipo Is {T/m] =1.73 =0Ka =0.3073 =32Kp =3.2546s [T/m] =30f'c [kg/cm] =240Sobrecarga [T/m] =1.5Fy [kg/cm] =4200hf [m] =1.5Ru [kg/cm] =45.37H [m] =10Predimencionamiento Asumo

b [m] = 20 cm0.35B[m] =(0,400,70)*H56De [m] =(B/4B/2)1.66666666671.75D [m] =(H/14H/12)0.83333333331T =3.25Separacin entre contrafuertesAsumo s [m] = 0,75 + 0,3*H3.753.5H' [m] =0.87Momento de Volteos [m] = (0,300,60)*H3HT [m] =10.87y [m] =3.58s [m] = (1/31/2)*H3.3333333333Mv [T-m] =390.78Espesor del contrafuerteAsumo Co [m] = H/200.50.4s' [m] =s - Co3.1Presin ActivaPresin PasivaElementorea [m]Volumen [m] W=V* [T]d [m]M=W*d [T-m]pr [t/m/ml] =5.32pp [t/m/ml] =8.45Hormignps [t/m/ml] =0.461.006.0021.0050.403.00151.20pa [t/m/ml] =5.78EP [T/m] =6.332.003.1511.0326.461.9350.94EA [T/m] =31.193.002.9310.2424.572.3256.92Presin Activa en ContrafuertePresin Pasiva en Contrafuerte4.007.883.157.561.178.82PAC [T] =109.17PPC [T] =22.17Suelo5.0029.25102.38177.114.38774.856.002.9310.2417.712.5344.87N [T] =303.81MR [T-m] =1087.59Factor de Seguridad al Volteo F.S.V2.78OK

0.60fr182.29Factor de Seguridad al Deslizamiento F.S.D1.67OKUbicacin de la Normal2.29OKe0.71M214.62Esfuerzos Admmisibles en el Sueloqs1 [T/m] =24.69OKqs2 [T/m] =4.25OKDiseo de la Pantalla# Dovelas4Hs [m] =9.00DovelaPresin sobre la PantallaPresiones Promedio MayoradasAltura de c/dovela2.2500.461.59

11.663.3822.855.1834.056.9745.25

DovelaPresinMomentos [T-m]Cortantes [T]M1M2M3M4M5V1V211.590.951.091.530.951.392.462.8323.382.032.323.252.032.965.246.0335.183.113.554.983.114.528.029.2346.974.194.796.704.196.0910.8112.43

Verificacin del Espesor de la PantallaPor Momentod [cm] =12.81OKPor Cortantevc [kg/cm] vp [kg/cm] OK1.788.21Diseo a Flexion Dovd [cm]M1As1M2As2M3As3M4As4M5As5144.250.9514.751.0914.751.5314.750.9514.751.3914.75(5) 120mm @20cm260.502.0320.172.3220.173.2520.172.0320.172.9620.17(5) 122mm @20cm376.753.1125.583.5525.584.9825.583.1125.584.5225.58(5) 125mm @20cm493.004.1931.004.7931.006.7031.004.1931.006.0931.00(5) 128mm @20cm

As reparticin [cm2]13.50Cara Exterior9.00(5) 116mm @20cmCara Interior4.50(4) 112mm @25cmAarmadura de anclaje etre la pantalla y el contrafuerte Dovelapresion [t/m]R [T/m]As [cm2/m]Est 2 ramas [cm2/m]11.595.291.400.70110mm @30cm23.3811.272.981.49110mm @30cm35.1817.254.562.28110mm @30cm46.9723.236.153.07110mm @25cm

Diseo del Dedom3.41Anlisis del Cortante qsd [T/m] =18.73Vu [T] =56.98vc [kg/cm] =8.17OKvp [kg/cm] =8.21Diseo a FlexinVerificacin del Espesor Mu [T] =52.14d [cm] =35.73OK0.0033As [cm] =31.00128mm @20cmAs reparticin [cm2]20.001/3 As rep 6.67114mm @25cmAarmadura de anclaje etre la pantalla y el contrafuerte q [T/m]R [T/m] As [cm]Estribo (2 ramas)21.7172.3419.149.57116mm @20cmDiseo del Talnm3.41w taln [T] =27.30qst [T/m] =15.32w 1 [T] =194.17w =221.47Presin sobre el Talnqt [T/m] =19.47qtM [T/m] =4.15qtm [T/m] =15.22Anlisis del Cortante Vu [T] =47.22vc [kg/cm] =6.77OKvp [kg/cm] =8.21Diseo a FlexinMu [T] =91.360.0033As [cm] =31.00128mm @20cmAs reparticin [cm2]20.001/3 As rep 6.67114mm @25cmDiseo del Contrafuerte11.00Dovelat [cm]d [cm]As [cm]14335.95se colocar 0,0033 debido a que no tiene cargas actuantes sobre el contrafuerte4.7428678.8910.413129121.8416.084172164.7821.75