Acer eap launch tool
Páginas: 43 (10659 palabras)
Publicado: 2 de diciembre de 2010
[pic]
Calculo de Reacciones
Wl = Ra Rb = 1340 kg/ml (18 mts) =12060 kg
Ra = Rb (n-1)(p/2)2 = (n-1) 100 kg = 4500 kg
2
Calculo de Momentos
Ma-1 = Mb = 1340 kg/ml (18m)2 = 36 180 kg.ml
12
Mc-1 = 1340 kg.ml (18)2 = 18090 kg.ml
24
Ma = Mb = PL (n2 -1) = 900 kg (18) ( (n) 2 -1 )= 14, 727.27
12n 12 (11)
Mmax = 50,907.27
Calculo del Modulo de Sección
Sxx = Max (100 cm) = 50,907.27 (100cm)
Fb 1520 kg/m2
Calculo de las areas
A-1 = 6.35 x 17.78 = 112.903 cm2
A-2 = 1.905 cm x 17.78 cm = 33.87 cm2
A-3 = 1.905 cm x 17.78 cm = 33.87 cm2
A-4 = A-5 = A-1 /2 = 112.903 cm2 / 2 =56.4515
Calculo de Inercia
Ixx-1 = 1/12 bh3 + A1 d12
= 0.083 (17.78cm) (6.35)3 + 112.903 m2 (12.065m)2
= 16,814. 00012 m4
Ixx-2 = 1/12 bh3 + A2d2 2
= 0.083 (1.905cm) (17.78 cm) 3 + 87.09 m2 (0)
= 892.26042 cm4
Ixx-3 = Ixx-2 = 892.26042 cm4
Ixx-4 = 1/12 bh3 + Ay (d4)2 = 0.083 (8.89 cm) (6.35 cm) 3 + 56.451522 (12.065)2
= 8.40700006 cm4Calculo del Modulo de Sección – Perfil
Ixx total/ C = 2323cm3
S- 1/C = 232365 cm3
S = M (100) / Fb = 3,349 m3 x 1.10 = 3,683,9 cm3
Diseño del perfil
Viga IPC 30”x12”
Lf= 1.27cm A= 135.61cm2
72.20cmSxx= 3543 cm3
Ixx= 134988 cm4
tw= 0.79 cm W= 107.1 kg/ml
30.48cm
Cálculo de la deflexión máxima
Wl4 1340(1800)4
Dmax1= 384EI =384(2.1e6)(134988) =
[pic] [pic][pic]
Dmax(total)= dmax1+ dmax2= 129.2257+0.52167= 129.74737
129.74737> 5cm
[pic]
Diseño de perfil
Lf= 1.27cm A= 135.61cm2
72.20cmSxx= 3543 cm3
tw= 0.79 cm W= 107.1 kg/ml
Ixx= 134988 cm
30.48cm
Ixx1= wl4 = 1340(1800)4 = 3488785.714cm4
384Edmax1 384(2.1e6)(5)
Ixx2= Pl4[pic] [pic] =14318.66481cm4
192(2.1e6)(5)
Ixx Total= 3503104.379 cm4
Dimensiones del perfil
Lf= 3.49cm A= 587.65cm2
190.5cm Sxx= 39416 cm3tw= 1.27 cm Ixx= 3754691 cm
W= 464.2 kg/ml
30.48cm
Deflexion
dMAX1 = [pic] = [pic] = 4.64590 cm
d MAX2 = [pic] = [pic]
[pic] [pic]= 0.0093775 cm
Dmax (total) = dMAX1 + d MAX2 = 4. 64590 + 0.00993775 = 4.665528cm
4.665528< 5cm
El perfilresiste a deflexión
Corte
Qcorte = [pic] =[pic] = 68.44813kg/cm2
FV= 1012.49 kg/cm2
68.44813kg/cm2 > 1012.49 kg/cm2
El perfil resiste a corte
Flexion
T flexion = [pic] = [pic] = 129.1422317 kg/cm2
C = [pic] = 190.5/ 2 = 95.25
Conclusion
El perfil es IPC de 75’’ x 20’’ con u peso de 464. 2 kg/ml
Analizar y diseñar la siguiente viga como lo muestra la figura,...
Calculo de Reacciones
Wl = Ra Rb = 1340 kg/ml (18 mts) =12060 kg
Ra = Rb (n-1)(p/2)2 = (n-1) 100 kg = 4500 kg
2
Calculo de Momentos
Ma-1 = Mb = 1340 kg/ml (18m)2 = 36 180 kg.ml
12
Mc-1 = 1340 kg.ml (18)2 = 18090 kg.ml
24
Ma = Mb = PL (n2 -1) = 900 kg (18) ( (n) 2 -1 )= 14, 727.27
12n 12 (11)
Mmax = 50,907.27
Calculo del Modulo de Sección
Sxx = Max (100 cm) = 50,907.27 (100cm)
Fb 1520 kg/m2
Calculo de las areas
A-1 = 6.35 x 17.78 = 112.903 cm2
A-2 = 1.905 cm x 17.78 cm = 33.87 cm2
A-3 = 1.905 cm x 17.78 cm = 33.87 cm2
A-4 = A-5 = A-1 /2 = 112.903 cm2 / 2 =56.4515
Calculo de Inercia
Ixx-1 = 1/12 bh3 + A1 d12
= 0.083 (17.78cm) (6.35)3 + 112.903 m2 (12.065m)2
= 16,814. 00012 m4
Ixx-2 = 1/12 bh3 + A2d2 2
= 0.083 (1.905cm) (17.78 cm) 3 + 87.09 m2 (0)
= 892.26042 cm4
Ixx-3 = Ixx-2 = 892.26042 cm4
Ixx-4 = 1/12 bh3 + Ay (d4)2 = 0.083 (8.89 cm) (6.35 cm) 3 + 56.451522 (12.065)2
= 8.40700006 cm4Calculo del Modulo de Sección – Perfil
Ixx total/ C = 2323cm3
S- 1/C = 232365 cm3
S = M (100) / Fb = 3,349 m3 x 1.10 = 3,683,9 cm3
Diseño del perfil
Viga IPC 30”x12”
Lf= 1.27cm A= 135.61cm2
72.20cmSxx= 3543 cm3
Ixx= 134988 cm4
tw= 0.79 cm W= 107.1 kg/ml
30.48cm
Cálculo de la deflexión máxima
Wl4 1340(1800)4
Dmax1= 384EI =384(2.1e6)(134988) =
[pic] [pic][pic]
Dmax(total)= dmax1+ dmax2= 129.2257+0.52167= 129.74737
129.74737> 5cm
[pic]
Diseño de perfil
Lf= 1.27cm A= 135.61cm2
72.20cmSxx= 3543 cm3
tw= 0.79 cm W= 107.1 kg/ml
Ixx= 134988 cm
30.48cm
Ixx1= wl4 = 1340(1800)4 = 3488785.714cm4
384Edmax1 384(2.1e6)(5)
Ixx2= Pl4[pic] [pic] =14318.66481cm4
192(2.1e6)(5)
Ixx Total= 3503104.379 cm4
Dimensiones del perfil
Lf= 3.49cm A= 587.65cm2
190.5cm Sxx= 39416 cm3tw= 1.27 cm Ixx= 3754691 cm
W= 464.2 kg/ml
30.48cm
Deflexion
dMAX1 = [pic] = [pic] = 4.64590 cm
d MAX2 = [pic] = [pic]
[pic] [pic]= 0.0093775 cm
Dmax (total) = dMAX1 + d MAX2 = 4. 64590 + 0.00993775 = 4.665528cm
4.665528< 5cm
El perfilresiste a deflexión
Corte
Qcorte = [pic] =[pic] = 68.44813kg/cm2
FV= 1012.49 kg/cm2
68.44813kg/cm2 > 1012.49 kg/cm2
El perfil resiste a corte
Flexion
T flexion = [pic] = [pic] = 129.1422317 kg/cm2
C = [pic] = 190.5/ 2 = 95.25
Conclusion
El perfil es IPC de 75’’ x 20’’ con u peso de 464. 2 kg/ml
Analizar y diseñar la siguiente viga como lo muestra la figura,...
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