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1. INGRESAR DATOS
Cambiar sólo las celdas de color amarillo
Fc = 210 Kg/cm2
Fy = 4200 Kg/cm2
peso concret (ϒ) 2400 kg/m3
peso suelo (w) 1900 kg/m3
Ang. Friccion (Ǿ) 35 grads sexag (Ver tabla)
Coef. Fricción (µ) 0.55
inclinac. Suelo (δ) 0 grads sexag
Capac port suelo 1.7 kg/cm2
sobrec. (Ws) 500 kg/m2
Factr carga muerta 1.4
Factr carga viva 1.7
Recub de refuerzo 6 cm
Long ancl. Gancho 56 cm (Ver tabla)
Altura ( H ) 8.2 m
relleno delant (a) 0 m
separac S/C (s) 0 m
2. PREDIMENSIONAMIENTO
hs=ws/w 0.263 m
Cos(Ǿ)= 0.82
Cos(δ)= 1.00
Ca= 0.271
Ca*w= 514.9 (kg/m3) FACTORES DE SEGURIDAD:
CALCULO DE MURO EN VOLADIZO
Giancalo Aldair
Altura
H
Sobre Carga W
Talon Anterior
b1
Talon Posterior
b2
Base B
C2
a
Corona
C
RELLENO
DELANTE DE
MURO
d
S
𝛿 = 0; 𝐶𝑎 =
1 + sin ∅
1 − sin ∅
𝛿 ≠ 0; 𝐶𝑎 = cos 𝛿
cos 𝛿 − cos 𝛿2 − cos ∅2
cos 𝛿 + cos 𝛿2 − cos ∅2
δ
PREDIMENSIONAMIENTO
Altura (H): Dato
Base (B):
Indicado abajo
Corona (C):
C ≈ H/24
C ≈ Min (0.30m)
Base Pantalla (C2):
C2 ≈ H/12
C2 ≈ H/10
Talon Anterior (b1):
b1 ≈ B/3
b1 ≈ B/2
Talon Posterior (b2):
b2 ≈ B-C2-b1
Altura Dentellon :
B/(H+hs)= 0.50 Interp. (Ver tabla) F.S Volteo:
B= 4.23 4.50 m F.S. Desliz: 2.83 > 2, Cumple!
1.75 > 1.5, Cumple!
Corona (C ) 0.34 0.30 m PRESIÓN DEL SUELO:
Base pantalla (C2) 0.68 0.70 m q1:
T. Anterior (b1) 1.50 1.50 m q2: 1.58 < 1.7, Cumple!
T. Posterior (b2) 2.30 2.30 m 0.62 < 1.7, Cumple!
Peralte zapata (d) 0.56 0.50 m VERIFICACIÓN POR CORTE
Altura dentellon 0.82 0.80 m Vu<φVc: cumple!
Ldh: ok, < peralt zapata
3. VERIFICACION DE ESTABILIDAD DE MURO
Ca*hs*w 135.4 kg
Ca*H*w 4222.18 kg
Fuerza (kg) Brazo (m)
FH1= 1110.4333 4.1
FH2= 17310.94 2.73
∑FH=F1+F2= 18421.37 kg
Momento actuante
∑MA= 51869.34 kg-m
Pesos (kg) Brazo (m)
w1= 5400 2.25
w2= 3696 1.77
w3= 5544 2.05
w4= 33649 3.35
w5= 0.00 3.73
FV1= 0.00 4.50
FV2= 0 4.50
Wsc= 1150 3.35
∑Fv= 49439
Momento por pesos
∑MR= 146621.45 Kg-m
Cp= 3.69
σ1= 3505.5 kg/m
σ2= 9114.3 kg/m
Fza pasiva= 5047.92 kg
Factor de seguridad por volteo
F.S. =∑MR/∑MA 2.83 >2, Cumple!
Factor de segurida por deslizamiento
F.S. =u∑FV/∑FH 1.75 >1.5, Cumple!
4. PRESIÓN DEL SUELO
Punto de paso de la resultante x= (∑MR-∑MA)/∑FV
x= 1.92 m
Empuje activo
Fuerzas verticales
Esfuerzos por dentellon
Ca*H*w
Ca*hs*w
H=
hs
F1
F2
A,R
𝑊𝑆𝐶 = 𝑤𝑆𝐶𝑏2ℎ𝑠
w2
w1
w3
w4
w6
w5
𝐶𝑝 = cos 𝛿
cos 𝛿 + cos 𝛿2 − cos ∅2
cos 𝛿 − cos 𝛿2 − cos ∅2
e=(B/2)-x 0.33 m
B/6= 0.75 m como e<B/6, Dist de carga trapesoidal, ok!
q1=P/SB*(1+6e/B) 1.58 kg/cm2 ok! Es menor q la cap portant del suelo
q2=P/SB*(1+6e/B) 0.62 kg/cm2 ok! Es menor q la cap portant del suelo
5. VERIFICACIÓN DE ESTABILIDAD SIN SOBRECARGA
Es conveniente verificar sin considerar efecto favorable de la S/C
∑Fv= 48289 Kg
∑MR= 142768.95 Kg-m
F.S. =∑MR/∑MA 3.02 >2, Cumple!
F.S. =u∑FV/∑FH 1.53 >1.5, Cumple!
6. DISEÑO DE LA ARMADURA DE LA PANTALLA
A. Diseño de la armadura vertical de la pantalla
Sobre carga H1= 1042.72 kg
Relleno H2= 15264.211 kg
brazo1 = Hx/2 = 3.85 m
brazo2 = Hx/3 2.57 m
Moment ultimo 73427.467 Kg-m
Peralte efectivo 0.64 m
w= 0.10
As= 32.27 cm2
Asmin(vertical)= 10.5 cm2
As elegido = 32.27 cm2
Numero varillla: 8
Espaciamiento S: 0.16 0.15 m
Asmin(vertical)= 10.5
Numero varillla: 8
Espaciamiento S: 0.48 0.50 m
Ecuacion Mu= 145.89x^3 + 437.67x^2
Moment que resiste el acero
Corona base pantalla
Diametro de acero 8 8
Separación 2*S 0.3 0.3 m
Peralte efectivo 0.24 0.64 m
a=As.Fy/0,85.F'c.b 3.97 3.97 cm
φMn=0,9.0,85.a. 14054.175 39592.23 kg-m
Ecuacion recta
x (Desde arriba)= 5.8000 Calcular manualmente
B. Diseño de la armadura horizontal de la pantalla
T. Superior T. Infer
0.0025*E2*pr 0.0025*E2*P
Asmin = 12.50 17.5 cm2
Acero en la parte exterior
As ext =2/3Asmin 8.333 11.667 cm2
PARAMENTO EXTERIOR
3316.63x+14054.17
Hx=
𝑀𝑢 = 1.7(
1
2
𝐶𝑎 ∗ 𝑤 ∗
𝑥3
3
+𝐶𝑎 ∗ 𝑤 ∗
𝑥2
2
)
𝐻1 = 𝐶𝑎ℎ𝑠𝑤
𝐻2 = 0.5(𝐶𝑎𝐻𝑥𝑤)𝐻𝑥
𝑀𝑢 = 1.7(𝐻1𝑏𝑟𝑎𝑧𝑜1 + 𝐻2𝑏𝑟𝑎𝑧𝑜2)
𝐴𝑠𝑚𝑖𝑛 = 0.0015 ∗ 100 ∗ 𝑑
𝐴𝑠𝑚𝑖𝑛(𝑆𝑢𝑝) = 0.0025 ∗ 100 ∗ ℎ𝑝𝑟𝑜𝑚𝑒𝑑𝑖𝑜
𝐴𝑠𝑚𝑖𝑛(𝐼𝑛𝑓) = 0.0025 ∗ 100 ∗ ℎ
Numero varillla: 5 5
Espaciamiento S: 0.24 0.17 m
Uniformizando: 0.20 0.2 Verificar redondeo
Acero en la parte interior
As int =1/3Asmin 4.167 5.833 cm2
Numero varillla: 4 4
Espaciamiento S: 0.30 0.22 m
Uniformizando: 0.25 0.25 Verificar redondeo
7. VERIFICACIÓN POR CORTE
Vu=1.5 27721.789 kg
φVc= 41781.537 kg
Debe: Vu<φVc cumple!
Finalmente long de desarrollo:
Ldh= 37.45 cm ok, < peralt zapata
8. DISEÑO DE LA ARMADURA DEL TALON POSTERIOR
wu= 23012 kg/m
q2= 6200.00 kg/m
q3= 11141.46 kg/m
Mu= 25582.017 kg-m
Peralte efectivo 0.44 m
w= 0.07306
As= 16.07 cm^2
Asmin= 9.00 cm^2
As elegido = 16.07 cm2
Nro varill As max: 6
S max= 0.18 m
Redondeo S max 0.20 verif redondeo
Asmin= 9.00 cm^2
Nro varill As min: 4
S min= 0.14 m
Redondeo S min 0.15 verif redondeo
Verificacion de Cortante en la cara del talon
Vu= 19025.05 kg
φVc= 28724.81 kg
Debe: φVc>Vu Cumple
9. DISEÑO DE LA ARMADURA DEL TALON ANTERIOR
q1= 15800 kg/m
q4= 12645.38 kg/m
Mu= 28206.43 kg-m
Peralte efectivo 0.44 m
w= 0.08095
ACERO TRANSVERSAL
ACERO LONGITUDINAL
ACERO LONGITUDINAL
∅𝑉𝑐 = 0.85 0.53 ∗ 𝑓𝑐 ∗ 𝑏𝑤 ∗ 𝑑
𝑉
𝑢 = 1.7 𝐻2 + 𝐻1
𝑙𝑑ℎ = 5.5 ∗ 0.7 ∗
𝐴𝑠𝑟𝑒𝑞
𝐴𝑠𝑝𝑟𝑜𝑣𝑖𝑠𝑡𝑜
wu= 1.4 𝛾𝑠(𝐻 − ℎ)𝛾𝑐 + 1.7(𝑠/𝑐)
wu
q3
q2
Mu= 1.7 𝑞4 ∗
𝑇𝑎𝑙𝑛𝐴𝑛𝑡2
6
+ 𝑞1 ∗
𝑇𝑎𝑙𝑛𝐴𝑛𝑡2
3
Mu= 𝑤𝑢 ∗
𝑇𝑎𝑙𝑛𝑃𝑜𝑠2
2
− 1.7 𝑞3 ∗
𝑇𝑎𝑙𝑛𝑃𝑜𝑠2
6
+ 𝑞2 ∗
𝑇𝑎𝑙𝑛𝑃𝑜𝑠2
3
∅𝑉𝑐 = 0.85 0.53 ∗ 𝑓𝑐 ∗ 𝑏𝑤 ∗ 𝑑
𝑉𝑈 = 𝑤𝑢 ∗ 𝑇𝑎𝑙𝑛𝑝𝑜𝑠 − 1.7 𝑞2 + 𝑞3 *𝑇𝑎𝑙𝑛𝑝𝑜𝑠/2
𝐴𝑠𝑚𝑖𝑛 = 0.0018 ∗ 100 ∗ ℎ
𝐴𝑠 0 0018 100 ℎ
As= 17.81 cm^2
Asmin= 9.00 cm^2
Nro varill As max: 4
S max= 0.07 m
Redond. S max= 0.05 Verificar redond
Asmin= 9.00
Nro varill As min: 4
S min= 0.14 m
Redond. S min= 0.15 Verificar redond
Verificacion de Cortante en la cara del talon
Vu= 25629.29 kg A "d" de la cara
φVc= 28724.81 kg
Debe: φVc>Vu Cumple
Vu: Puesto q la reaccion de la pantalla actua en sentido contrario
a la carga aplicada sobre el talon, se reduce la cortante a "d" de la cara
11. PLANO FINAL
Ext #5@0.2m #8@0.5m
Int #4@0.25m
#8@0.3m
Ext #5@0.2m #6@0.2m
Int #4@0.25m
#4@0.15m
#4@0.05m
#4@0.15m
ACERO TRANSVERSAL
q1 q4
∅𝑉𝑐 = 0.85 0.53 ∗ 𝑓𝑐 ∗ 𝑏𝑤 ∗ 𝑑
𝑉𝑈 = 1.7 𝑞1 + 𝑞4 *𝑇𝑎𝑙𝑛𝑎𝑛𝑡/2
Interior
𝐴𝑠𝑚𝑖𝑛 = 0.0018 ∗ 100 ∗ ℎ
≈
0.00
0.00
0.00
0.00
0.00
0.00
0.00

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Muro voladizo gian

  • 1. 1. INGRESAR DATOS Cambiar sólo las celdas de color amarillo Fc = 210 Kg/cm2 Fy = 4200 Kg/cm2 peso concret (ϒ) 2400 kg/m3 peso suelo (w) 1900 kg/m3 Ang. Friccion (Ǿ) 35 grads sexag (Ver tabla) Coef. Fricción (µ) 0.55 inclinac. Suelo (δ) 0 grads sexag Capac port suelo 1.7 kg/cm2 sobrec. (Ws) 500 kg/m2 Factr carga muerta 1.4 Factr carga viva 1.7 Recub de refuerzo 6 cm Long ancl. Gancho 56 cm (Ver tabla) Altura ( H ) 8.2 m relleno delant (a) 0 m separac S/C (s) 0 m 2. PREDIMENSIONAMIENTO hs=ws/w 0.263 m Cos(Ǿ)= 0.82 Cos(δ)= 1.00 Ca= 0.271 Ca*w= 514.9 (kg/m3) FACTORES DE SEGURIDAD: CALCULO DE MURO EN VOLADIZO Giancalo Aldair Altura H Sobre Carga W Talon Anterior b1 Talon Posterior b2 Base B C2 a Corona C RELLENO DELANTE DE MURO d S 𝛿 = 0; 𝐶𝑎 = 1 + sin ∅ 1 − sin ∅ 𝛿 ≠ 0; 𝐶𝑎 = cos 𝛿 cos 𝛿 − cos 𝛿2 − cos ∅2 cos 𝛿 + cos 𝛿2 − cos ∅2 δ PREDIMENSIONAMIENTO Altura (H): Dato Base (B): Indicado abajo Corona (C): C ≈ H/24 C ≈ Min (0.30m) Base Pantalla (C2): C2 ≈ H/12 C2 ≈ H/10 Talon Anterior (b1): b1 ≈ B/3 b1 ≈ B/2 Talon Posterior (b2): b2 ≈ B-C2-b1 Altura Dentellon :
  • 2. B/(H+hs)= 0.50 Interp. (Ver tabla) F.S Volteo: B= 4.23 4.50 m F.S. Desliz: 2.83 > 2, Cumple! 1.75 > 1.5, Cumple! Corona (C ) 0.34 0.30 m PRESIÓN DEL SUELO: Base pantalla (C2) 0.68 0.70 m q1: T. Anterior (b1) 1.50 1.50 m q2: 1.58 < 1.7, Cumple! T. Posterior (b2) 2.30 2.30 m 0.62 < 1.7, Cumple! Peralte zapata (d) 0.56 0.50 m VERIFICACIÓN POR CORTE Altura dentellon 0.82 0.80 m Vu<φVc: cumple! Ldh: ok, < peralt zapata 3. VERIFICACION DE ESTABILIDAD DE MURO Ca*hs*w 135.4 kg Ca*H*w 4222.18 kg Fuerza (kg) Brazo (m) FH1= 1110.4333 4.1 FH2= 17310.94 2.73 ∑FH=F1+F2= 18421.37 kg Momento actuante ∑MA= 51869.34 kg-m Pesos (kg) Brazo (m) w1= 5400 2.25 w2= 3696 1.77 w3= 5544 2.05 w4= 33649 3.35 w5= 0.00 3.73 FV1= 0.00 4.50 FV2= 0 4.50 Wsc= 1150 3.35 ∑Fv= 49439 Momento por pesos ∑MR= 146621.45 Kg-m Cp= 3.69 σ1= 3505.5 kg/m σ2= 9114.3 kg/m Fza pasiva= 5047.92 kg Factor de seguridad por volteo F.S. =∑MR/∑MA 2.83 >2, Cumple! Factor de segurida por deslizamiento F.S. =u∑FV/∑FH 1.75 >1.5, Cumple! 4. PRESIÓN DEL SUELO Punto de paso de la resultante x= (∑MR-∑MA)/∑FV x= 1.92 m Empuje activo Fuerzas verticales Esfuerzos por dentellon Ca*H*w Ca*hs*w H= hs F1 F2 A,R 𝑊𝑆𝐶 = 𝑤𝑆𝐶𝑏2ℎ𝑠 w2 w1 w3 w4 w6 w5 𝐶𝑝 = cos 𝛿 cos 𝛿 + cos 𝛿2 − cos ∅2 cos 𝛿 − cos 𝛿2 − cos ∅2
  • 3. e=(B/2)-x 0.33 m B/6= 0.75 m como e<B/6, Dist de carga trapesoidal, ok! q1=P/SB*(1+6e/B) 1.58 kg/cm2 ok! Es menor q la cap portant del suelo q2=P/SB*(1+6e/B) 0.62 kg/cm2 ok! Es menor q la cap portant del suelo 5. VERIFICACIÓN DE ESTABILIDAD SIN SOBRECARGA Es conveniente verificar sin considerar efecto favorable de la S/C ∑Fv= 48289 Kg ∑MR= 142768.95 Kg-m F.S. =∑MR/∑MA 3.02 >2, Cumple! F.S. =u∑FV/∑FH 1.53 >1.5, Cumple! 6. DISEÑO DE LA ARMADURA DE LA PANTALLA A. Diseño de la armadura vertical de la pantalla Sobre carga H1= 1042.72 kg Relleno H2= 15264.211 kg brazo1 = Hx/2 = 3.85 m brazo2 = Hx/3 2.57 m Moment ultimo 73427.467 Kg-m Peralte efectivo 0.64 m w= 0.10 As= 32.27 cm2 Asmin(vertical)= 10.5 cm2 As elegido = 32.27 cm2 Numero varillla: 8 Espaciamiento S: 0.16 0.15 m Asmin(vertical)= 10.5 Numero varillla: 8 Espaciamiento S: 0.48 0.50 m Ecuacion Mu= 145.89x^3 + 437.67x^2 Moment que resiste el acero Corona base pantalla Diametro de acero 8 8 Separación 2*S 0.3 0.3 m Peralte efectivo 0.24 0.64 m a=As.Fy/0,85.F'c.b 3.97 3.97 cm φMn=0,9.0,85.a. 14054.175 39592.23 kg-m Ecuacion recta x (Desde arriba)= 5.8000 Calcular manualmente B. Diseño de la armadura horizontal de la pantalla T. Superior T. Infer 0.0025*E2*pr 0.0025*E2*P Asmin = 12.50 17.5 cm2 Acero en la parte exterior As ext =2/3Asmin 8.333 11.667 cm2 PARAMENTO EXTERIOR 3316.63x+14054.17 Hx= 𝑀𝑢 = 1.7( 1 2 𝐶𝑎 ∗ 𝑤 ∗ 𝑥3 3 +𝐶𝑎 ∗ 𝑤 ∗ 𝑥2 2 ) 𝐻1 = 𝐶𝑎ℎ𝑠𝑤 𝐻2 = 0.5(𝐶𝑎𝐻𝑥𝑤)𝐻𝑥 𝑀𝑢 = 1.7(𝐻1𝑏𝑟𝑎𝑧𝑜1 + 𝐻2𝑏𝑟𝑎𝑧𝑜2) 𝐴𝑠𝑚𝑖𝑛 = 0.0015 ∗ 100 ∗ 𝑑 𝐴𝑠𝑚𝑖𝑛(𝑆𝑢𝑝) = 0.0025 ∗ 100 ∗ ℎ𝑝𝑟𝑜𝑚𝑒𝑑𝑖𝑜 𝐴𝑠𝑚𝑖𝑛(𝐼𝑛𝑓) = 0.0025 ∗ 100 ∗ ℎ
  • 4. Numero varillla: 5 5 Espaciamiento S: 0.24 0.17 m Uniformizando: 0.20 0.2 Verificar redondeo Acero en la parte interior As int =1/3Asmin 4.167 5.833 cm2 Numero varillla: 4 4 Espaciamiento S: 0.30 0.22 m Uniformizando: 0.25 0.25 Verificar redondeo 7. VERIFICACIÓN POR CORTE Vu=1.5 27721.789 kg φVc= 41781.537 kg Debe: Vu<φVc cumple! Finalmente long de desarrollo: Ldh= 37.45 cm ok, < peralt zapata 8. DISEÑO DE LA ARMADURA DEL TALON POSTERIOR wu= 23012 kg/m q2= 6200.00 kg/m q3= 11141.46 kg/m Mu= 25582.017 kg-m Peralte efectivo 0.44 m w= 0.07306 As= 16.07 cm^2 Asmin= 9.00 cm^2 As elegido = 16.07 cm2 Nro varill As max: 6 S max= 0.18 m Redondeo S max 0.20 verif redondeo Asmin= 9.00 cm^2 Nro varill As min: 4 S min= 0.14 m Redondeo S min 0.15 verif redondeo Verificacion de Cortante en la cara del talon Vu= 19025.05 kg φVc= 28724.81 kg Debe: φVc>Vu Cumple 9. DISEÑO DE LA ARMADURA DEL TALON ANTERIOR q1= 15800 kg/m q4= 12645.38 kg/m Mu= 28206.43 kg-m Peralte efectivo 0.44 m w= 0.08095 ACERO TRANSVERSAL ACERO LONGITUDINAL ACERO LONGITUDINAL ∅𝑉𝑐 = 0.85 0.53 ∗ 𝑓𝑐 ∗ 𝑏𝑤 ∗ 𝑑 𝑉 𝑢 = 1.7 𝐻2 + 𝐻1 𝑙𝑑ℎ = 5.5 ∗ 0.7 ∗ 𝐴𝑠𝑟𝑒𝑞 𝐴𝑠𝑝𝑟𝑜𝑣𝑖𝑠𝑡𝑜 wu= 1.4 𝛾𝑠(𝐻 − ℎ)𝛾𝑐 + 1.7(𝑠/𝑐) wu q3 q2 Mu= 1.7 𝑞4 ∗ 𝑇𝑎𝑙𝑛𝐴𝑛𝑡2 6 + 𝑞1 ∗ 𝑇𝑎𝑙𝑛𝐴𝑛𝑡2 3 Mu= 𝑤𝑢 ∗ 𝑇𝑎𝑙𝑛𝑃𝑜𝑠2 2 − 1.7 𝑞3 ∗ 𝑇𝑎𝑙𝑛𝑃𝑜𝑠2 6 + 𝑞2 ∗ 𝑇𝑎𝑙𝑛𝑃𝑜𝑠2 3 ∅𝑉𝑐 = 0.85 0.53 ∗ 𝑓𝑐 ∗ 𝑏𝑤 ∗ 𝑑 𝑉𝑈 = 𝑤𝑢 ∗ 𝑇𝑎𝑙𝑛𝑝𝑜𝑠 − 1.7 𝑞2 + 𝑞3 *𝑇𝑎𝑙𝑛𝑝𝑜𝑠/2 𝐴𝑠𝑚𝑖𝑛 = 0.0018 ∗ 100 ∗ ℎ 𝐴𝑠 0 0018 100 ℎ
  • 5. As= 17.81 cm^2 Asmin= 9.00 cm^2 Nro varill As max: 4 S max= 0.07 m Redond. S max= 0.05 Verificar redond Asmin= 9.00 Nro varill As min: 4 S min= 0.14 m Redond. S min= 0.15 Verificar redond Verificacion de Cortante en la cara del talon Vu= 25629.29 kg A "d" de la cara φVc= 28724.81 kg Debe: φVc>Vu Cumple Vu: Puesto q la reaccion de la pantalla actua en sentido contrario a la carga aplicada sobre el talon, se reduce la cortante a "d" de la cara 11. PLANO FINAL Ext #5@0.2m #8@0.5m Int #4@0.25m #8@0.3m Ext #5@0.2m #6@0.2m Int #4@0.25m #4@0.15m #4@0.05m #4@0.15m ACERO TRANSVERSAL q1 q4 ∅𝑉𝑐 = 0.85 0.53 ∗ 𝑓𝑐 ∗ 𝑏𝑤 ∗ 𝑑 𝑉𝑈 = 1.7 𝑞1 + 𝑞4 *𝑇𝑎𝑙𝑛𝑎𝑛𝑡/2 Interior 𝐴𝑠𝑚𝑖𝑛 = 0.0018 ∗ 100 ∗ ℎ
  • 6.