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analisis modal espectral
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analisis modal espectral
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Hernan Kcana Chura
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MATRIZ DE FORMA DE MODO: A N A L I S IS IS E N A L D I R E C C IO IO N " X " :
M6= 0.516 K6=663
0.411
0.930
0.763
0.784
0.374
-1.000
1.000
-1.000
0.588
max
1.000
0.930
0.763
min
0.411
1.000
1.000
MAXIMO
1.000
1.000
1.000
0.411
0.930
0.763
0.784
0.374
-1.000
1.000
-1.000
0.588
μ=
M5= 0.623 K5=1429 M4= 0.623 K4=2080
Z=
0.40
U=
1.00
S=
1.20
C=
2.50
R=
5.25
Sa =
Normalizando:
Ф=
224.00
PARAMETROS DINAMICOS: W 1 2 3
T 21.52 54.27 75.98
DEPLAZAMIENTOS: modo Xα nivel
0.292 0.116 0.083
85%T 0.248 0.116 0.083
1º
1 0.46425735 2 2.421 3 4.079 4 5.715 5 6.82 6 7.271
Ct
FPM 1.255 0.260 0.134
Sai 2.5 2.5 2.5
2º
105.84 140 140
3º
4
∆Xα
Xα
∆Xα
Xα
∆Xα
Xα
0.611 1.95674265 1.658 1.636 1.105 0.451
0.12 0.416 0.449 0.139 -0.268 -0.488
0.12 0.296 0.033 -0.31 -0.407 -0.22
0.036 0.088 -0.008 -0.112 -0.017 0.108
0.036 0.052 -0.096 -0.104 0.095 0.125
0.024 0.033 -0.05 0.009 0.042 -0.047
FUERZAS CORTANTES Y FUERZAS INERCIALES: modo
1º
nivel 1 2 3 4 5 6
2º
3º
4
Vα
Fα
Vα
Fα
Vα
Fα
Vα
600.76 583.26 515 406.44 272.13 111.85
17.5 68.26 108.56 134.31 160.28 111.85
120.27 95.3 10.09 -76.58 -100.31 -54.51
24.97 85.21 86.67 23.73 -45.8 -54.51
36.04 16.51 -29.84 -25.82 2.46 30.91
19.53 46.35 -4.02 -49.28 -7.44 30.91
24.12 2.93 -25.8 14.62 7.95 -21.89
Vbasedin.=
618.74
(tn)
Vbaseest.=
835.3
(tn)
y
80%Vbaseest.=
668.24
según norma : Vbasedin Entonces debemos de escalar:
≥
80%Vbaseest
factor de escala:
=
1.08
668.24 Vbasedin
(tn) (NO CUMPLE)
Entonces, tenemos que escalar: V(tn) F(tn) 1 668.24 28.56 2 639.68 81.45 3 558.23 110.26 4 447.97 133.37 5 314.60 173.76 6 140.84 140.84
A N A L I S IS E N A L D I R E C C IO N " Y " :
μ=
1 3.35 5.824 7.948 9.385 9.963
1 2.947 3.103 0.921 -1.931 -3.436
1 2 -0.485 -2.285 -0.211 2.177
1 1.039 -2.003 0.819 1.429 -1.846
1 0.206 -1.554 2.866 -3.168 2.331
1 -0.546 0.251 -0.131 0.068 -0.036
0.291 0.858 0.903
0.438 0.875 -0.212
0.499 0.519 -1
0.316 0.065 -0.491
1 -0.546 0.251
Normalizando:
Ф=
0.1 0.336 0.585
0.798 0.942 1
0.268 -0.562 -1
-1 -0.092 0.935
0.409 0.713 -0.922
0.905 -1 0.736
-0.131 0.068 -0.036
PARAMETROS DINAMICOS: W 1 2 3 4 5 6
T 10.677 29.342 46.436 59.051 68.095 75.292
85%T 0.50 0.214 0.135 0.106 0.092 0.083
0.588 0.214 0.135 0.106 0.092 0.083
DEPLAZAMIENTOS LATERALES:: modo 1º 1 1 Xα ∆Xα nivel 1 2 3 4 5 6
0.681 2.288 3.983 5.433 6.414 6.809
Ct
FPM
Sai
1.32 0.49 0.31 0.21 0.11 0.46
2 2.5 2.5 2.5 2.5 2.5
2
3
2º 2
0.681 1.607 1.695 1.45 0.981 0.395
112 140 140 140 140 140
3º
4 3
4
Xα
∆Xα
Xα
∆Xα
Xα
0.122 0.359 0.378 0.122 -0.235 -0.418
0.122 0.237 0.019 -0.266 -0.347 -0.183
0.046 0.092 -0.022 -0.106 -0.01 0.101
0.036 0.046 -0.114 -0.084 0.096 0.111
0.022 0.023 -0.044 0.018 0.032 -0.041
FUERZAS CORTANTES Y FUERZAS INERCIALES: modo
1º
nivel 1 2 3 4 5 6
2º
3º
4
Vα
Fα
Vα
Fα
Vα
Fα
Vα
642.84 620.96 548.62 429.73 286.52 117.47
21.88 72.34 118.89 143.21 169.05 117.47
121.42 91.88 6.17 -78.99 -101.31 -54.51
29.54 85.71 85.16 22.32 -46.8 -54.51
46.12 17.99 -37.31 -24.66 28.02 32.86
28.13 55.3 -12.65 -52.68 -4.85 32.86
22.02 0.31 -21.91 18.5 3.91 -21.54
80%Vbaseest.=
668.24
Vbasedin.=
658.92
(tn)
Vbaseest.=
835.3
(tn)
y
según norma : Vbasedin Entonces debemos de escalar:
≥
80%Vbaseest
factor de escala:
=
1.014
668.24 Vbasedin
(tn) (NO CUMPLE)
Entonces, tenemos que escalar: V(tn) F(tn) 1 668.24 30.34 2 637.90 79.52 3 558.38 114.05 4 444.33 134.62 5 309.71 172.15 6 137.56 137.56
º
5º
6º
∆Xα
Xα
∆Xα
Xα
∆Xα
0.024 0.009 -0.083 0.059 0.033 -0.089
0.007 0.005 -0.014 0.022 -0.022 0.016
0.007 -0.002 -0.019 0.036 -0.044 0.038
0.075 -0.036 0.016 -0.006 0.003 -0.001
0.075 -0.111 0.052 -0.022 0.009 -0.004
º
5º
6º
comb. Modal 0.63 1.84 1.66 1.67 1.18 0.53
∆adm.(cm) 2.52 1.96 1.96 1.96 1.96 1.96
comb.modal
Fα
Vα
Fα
Vα
Fα
21.19 28.73 -40.42 6.67 29.84 -21.89
7.24 -0.89 -5.88 8.97 -10.88 9.52
8.13 4.99 -14.85 19.84 -20.39 9.52
74.35 -35.45 15.87 -5.45 2.21 -0.94
109.8 -51.32 21.32 -7.66 3.15 -0.94
Vi(Tn) 618.74 592.3 516.88 414.79 291.3 130.41
Fi(Tn) 11.82 132.49 147.04 146.72 170.76 130.41
ok! ok! ok! ok! ok! ok!
º
5º 4
5
6º 5
6
6
∆Xα
Xα
∆Xα
Xα
∆Xα
0.022 0.001 -0.067 0.062 0.014 -0.073
0.006 0.001 -0.009 0.016 -0.017 0.013
0.006 -0.005 -0.01 0.025 -0.033 0.03
0.06 -0.033 0.015 -0.008 0.004 -0.002
0.06 -0.093 0.048 -0.023 0.012 -0.006
º
5º
6º
comb. Modal 0.7 1.63 1.7 1.48 1.05 0.46
∆adm.(cm) 2.52 1.96 1.96 1.96 1.96 1.96
comb.modal
Fα
Vα
Fα
Vα
Fα
21.71 22.22 -40.42 14.6 25.45 -21.54
5.49 -1.71 -3.16 7.23 -9.69 9.01
7.2 1.46 -10.39 16.92 -18.69 9.01
59.55 -35.75 15.45 -6.77 3.47 -1.84
95.3 -51.2 22.22 -10.24 5.32 -1.84
Vi(Tn) 658.92 629 550.59 438.13 305.39 135.64
Fi(Tn) 108.39 136.95 154.22 156.16 178.37 135.64
ok! ok! ok! ok! ok! ok!
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