arco circular biarticulado
TRANSCRIPT
![Page 1: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/1.jpg)
DISEÑO DE ARCO CIRCULAR BIARTICULADO
Alumno : Ing Oscar Salazar Jaime
![Page 2: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/2.jpg)
DISEÑO DE UNA NAVE INDUSTRIAL EN ARCO BIARTICULADO
I.- DIMENSIONAMIENTO
1.1 GEOMETRIA
Luz = 40.00 m
Largo = 90.00 m
S arco = 8.18 m
S viguetas = 2.00 m
f = L / 6 = 6.67 m
2.2 CARGAS
CARGA MUERTA
Peso del arco = 10.00 Kg/m2 450*150*5/16"
Peso de cobertura = 4.30 Kg/m2 TR-4 CURVO 0.5 mm
Viguetas = 5.00 Kg/m2
Luminarias = 3.00 Kg/m2
Agua Contra Incendio = 3.00 Kg/m2
25.30 Kg/m2
S = 8.18 m
Wm = 206.95 Kg/m
CARGA VIVA
Carga Viva (RNE) = 30.00 Kg/m2
S = 8.18 m
WL = 245.40 Kg/m
- Cargas de viento (W)
Vw= 75 km/hr
qs 28.13 kg/m2
@ 8.18
Techo Barlovento cq 0.3 Ww= 69 kg/m
Techo Sotavento cq -0.6 Ww= -138 kg/m
Techo Barlovento cq -0.7 Ww= -161 kg/m
Techo Sotavento cq -0.6 Ww= -138 kg/m
![Page 3: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/3.jpg)
ESTADOS DE CARGA
CM: 0.21 T/m
CV1: 0.25 T/m
![Page 4: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/4.jpg)
CV2: 0.25 T/m
CV3: 0.25 T/m
![Page 5: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/5.jpg)
CV4: 0.25 T/m
VIENTO 1: 69 Kg/m
-138 Kg/m
![Page 6: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/6.jpg)
VIENTO 2: -161 Kg/m
DIAGRAMA DE FUERZAS DE CM
![Page 7: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/7.jpg)
AXIAL CM
DMF CM
![Page 8: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/8.jpg)
ALTERNANCIA DE CV
AXIAL DE CV
![Page 9: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/9.jpg)
AXIAL CV1
AXIAL CV2
![Page 10: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/10.jpg)
AXIAL CV3
AXIAL CV4
![Page 11: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/11.jpg)
AXIAL VIENTO1
AXIAL VIENTO2
![Page 12: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/12.jpg)
DMF CV
DMF CV1
![Page 13: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/13.jpg)
DMF CV2
DMF CV3
![Page 14: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/14.jpg)
DMF CV4
DMF VIENTO1
![Page 15: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/15.jpg)
DMF VIENTO2
CORTE CV
![Page 16: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/16.jpg)
COMBINACIONES DE CARGA
•1.4D
•1.2D + 1.6L
•1.2D + 1.6W
•0.9D +1.6W
![Page 17: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/17.jpg)
DIAGRAMA DE FUERZAS INTERNAS 1.2D+1.6L1
![Page 18: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/18.jpg)
DISEÑO
Detalle del Diseño de la Sección más esforzada del Arco.
II.- DISEÑO DE ESTRUCTURA
2.1 Diseño de Viga
Mu máx 12.66 T-m Combinación: 1.2D + 1.6L4
Para sección HSS 18" x 6" x 5/16" A= 86.45 cm² Sx= 934.06 cm3 rx= 15.70 cm Rectangular HSS
d = 450.00 mm Sy= 498.17 cm3 ry= 6.63 cm
Zx = 1,197.89 cm3 bf/(2*tf) = 5.97 Y
E = 2,040,000.00 Kg/cm2 ho = 44.11 cm
Fy = 2,520.00 Kg/cm2 t(des)=0.291
Ix= 21,352.67 cm4 h / tw = 50.76
Iy= 927.61 cm4 Jc = 10,697.15 cm4
bf = 15.24 cm tw = 0.88646 cm tf = 0.88646 cm
h=18 X
Lp = 1.76 ry (E /Fy) ^0.5 = 3.32 m
RADIO DE GIRO EFECTIVO = b=6
HSS18X6X5/16
rts = 3.60 cm A = 13.4 in.^2
0.7Fy/E = 0.0008647 h = 18 in.
Jc/Sxho = 0.26 b = 6 in.
E/0.7Fy = 1156.46 t(des) = 0.291 in.
FL = 0.7Fy wt./ft. = 48.87 plf.
Longitud máx. Sin soporte Lr = 58.52 m Ix = 513 in.^4
Longitud sin soporte lateral Lb = 20.000 m OK Sx = 57 in.^3
Longitud para M° plástico Lp = 3.32 OK rx = 6.18 in.
Zx = 73.1 in.^3
COEFICIENTE DE FLEXION Iy = 91.3 in.^4
Sy = 30.4 in.^3
ry = 2.61 in.
Zy = 33.5 in.^3
h(f lat) = 16.5625 in.
b(f lat) = 4.5625 in.
Conservadoramente asumimos valor de Cb = 1.00 J = 257 in.^4
C = 58.7 in.^3
MOMENTO NOMINAL PARA LONGITUDES SIN SOPORTE LATERAL ENTRE Lp y Lr A(surf) = 3.92 f t^2/ft
30.19 Ton-m
Mn = 26.04 Ton-m
ᶲ Mn = 23.44 Ton-m
Mu / ᶲ Mn = 0.54 OK
Momento nominal es el doble del momento último
Mp = Fy * Zx =
![Page 19: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/19.jpg)
Detalle del Diseño del Tirante
Sección del tirante: Se emplearán dos redondos lisos de 1-1/8” acero A-36
2.2 Diseño de Tirante
2 fierros lisos de 1 1/8"
Fractura en la parte roscada
Fu = 4.08 Ton/cm2 Esfuerzo de fractura
An = 0.75 x 12.826 cm2
An = 9.6195 cm2
ᶲ Tn = 29.43567 Ton
Tu = 17.29 Ton
Tu / ᶲ Tn = 0.5873826 < 1 OK
![Page 20: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/20.jpg)
2.3 Viguetas de Techo
2.3.1 Metrado de cargas
Cargas Muertas (D)
Peso propio+templadores 6.00 kg/m2
Panel TR-4 CURVO 0.5 mm 4.30
Total Carga Muerta 10.3 kg/m²
Separación @ 2.00 m
Carga distribuida 20.60 kg/m
Cargas Vivas (L) 30 kg/m² RNE
Separación @ 2.00 m
Carga distribuida 60.00 kg/m
Cargas de Viento (W)
Vw= 75 km/hr
qs 28.13 kg/m2
Techo Barlovento
C 0.3
P 8.4 kg/m2 kg/m2
Separación @ 2.00 m Ww= 16.88 kg/m
W v W h
D 20.60 20.5 2.0
L 60.00 59.7 6.0
W 17 17
Ang (rad) 0.099668652 W v= w cos(ang)
W h= w sin(ang)
Combinación w (kg/m)
1 1.2D+1.6L 120 Kg/m Controla
2 1.2D+1.6W 52 Kg/m
2.3.2 Análisis y Diseño
vigueta típica de techo
L= 8.18 m
Lb 8.18 m
491.29 kg
1,004.70 kg-m
Para sección W 8 X 10 A= 19.10 cm² Sx= 127.98 cm3 rx= 8.18 cm
d = 197.25 mm Sy= 17.37 cm3 ry= 2.14 cm
Zx = 145.35 cm3 bf/(2*tf) = 9.61
E = 2,040,000.00 Kg/cm2 ho = 19.53 cm
Fy = 2,520.00 Kg/cm2
Ix= 1,281.99 cm4 h / tw = 45.68
Iy= 86.99 cm4 Jc = 1.77 cm4 Cw = 8,297.76 cm6
bf = 10.01 cm tw = 0.4318 cm tf = 0.5207 cm
Lp = 1.76 ry (E /Fy) ^0.5 = 1.07 m
RADIO DE GIRO EFECTIVO = (rts)^2 = √(Iy.Cw)/Sx = 6.64
rts = 2.577 cm
0.7Fy/E = 0.0008647
Jc/Sxho = 0.000709
E/0.7Fy = 1156.46
FL = 0.7Fy
Longitud máx. Sin soporte Lr = 3.22 m
Arriostrar en el centro de luz Lb = 4.090 m Lb mayor que Lr sección en zona 3
Longitud para M° plástico Lp = 1.07
COEFICIENTE DE FLEXION
Conservadoramente asumimos valor de Cb = 1.00
Vu max =
Mu max =
W vWh
![Page 21: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/21.jpg)
MOMENTO NOMINAL
Cb pi2 E = 20,134,087.14
(Lb/rts)^2 = 25,198.68
799.01
Fcr = 1,236.31 Kg/cm2
Mn = 1.58 Ton-m
ᶲ Mn = 1.42 Ton-m
3.66 Ton-m
Mu / ᶲ Mn = 0.71
Mp = Fy * Zx =
![Page 22: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/22.jpg)
![Page 23: Arco Circular Biarticulado](https://reader034.vdocumento.com/reader034/viewer/2022051213/55cf9b61550346d033a5d6ab/html5/thumbnails/23.jpg)