angka reduksi inersia pada tahap III ini yaitu 0.861, dapat disimpulkan karena angka reduksi yang dimasukkan adalah 0.861 dan hasil analisisnya nilainya sama yaitu
0.861 jadi, untuk balok pada kasus ini angka reduksi inersia adalah 0.861 I
g.
b. Akibat Beban Gempa Tabel 4. 8. Gaya Dalam pada frame 15
Frame Station
OutputCase CaseType
M D
N
Text cm
Text Text
N-mm N
N 15
Gempa LinStatic
707828911 207115.01
-32772.02 15
50 Gempa
LinStatic 604271408
207115.01 -32772.02
15 100
Gempa LinStatic
500713905 207115.01
-32772.02 15
150 Gempa
LinStatic 397156401
207115.01 -32772.02
15 200
Gempa LinStatic
293598898.1 207115.01 -32772.02
15 250
Gempa LinStatic
190041394.9 207115.01 -32772.02
15 300
Gempa LinStatic
86483891.62 207115.01 -32772.02
15 350
Gempa LinStatic
-17073611.6 207115.01
-32772.02 15
350 Gempa
LinStatic -23336484.6
207266.68 -28868.23
15 400
Gempa LinStatic
-126969824 207266.68
-28868.23 15
450 Gempa
LinStatic -230603164
207266.68 -28868.23
15 500
Gempa LinStatic
-334236503 207266.68
-28868.23 15
550 Gempa
LinStatic -437869843
207266.68 -28868.23
15 600
Gempa LinStatic
-541503182 207266.68
-28868.23 15
650 Gempa
LinStatic -645136522
207266.68 -28868.23
15 700
Gempa LinStatic
-748769861 207266.68
-28868.23
Tabel 4. 9. Analisis balok pada frame 15 tahap I
Frame Station
OutputCase M
As y
f
Text cm
Text N-mm
mm
2
mm kNmm
2
15 Gempa
707828911 558.475
112.8017793 83.269
15 50
Gempa 604271408
423.538 99.72572659
79.714 15
100 Gempa
500713905 229.185
75.36158365 86.029
15 150
Gempa 397156401
156.103 63.01682508
80.956 15
200 Gempa
293598898.1 156.103
63.01682508 59.847
15 250
Gempa 190041394.9
259.803 79.84936345
30.906 15
300 Gempa
86483891.62 396.399
96.79802223 11.731
15 350
Gempa -17073611.6
519.742 109.2688586
2.069
Universitas Sumatera Utara
15 350
Gempa -23336484.6
520.011 109.2939485
2.827 15
400 Gempa
-126969824 406.216
97.8706656 17.046
15 450
Gempa -230603164
278.982 82.50506326
36.358 15
500 Gempa
-334236503 156.103
63.01682508 68.131
15 550
Gempa -437869843
156.103 63.01682508
89.255 15
600 Gempa
-541503182 181.858
67.68340104 103.079
15 650
Gempa -645136522
365.995 93.3706865
90.519 15
700 Gempa
-748769861 558.475
112.8017793 88.083
Tabel 4. 9. Analisis balok pada frame 15 tahap I
Frame Station
a h-y+a
I I
g
α
Text cm
mm mm
mm
4
mm
4
15 5.194
492.392 2984512293
54x10
7
0.553 15
50 4.797
505.071 3221044908
54x10
7
0.596 15
100 3.359
527.997 3679886584
54x10
7
0.681 15
150 2.984
539.968 3935890977
54x10
7
0.729 15
200 4.037
541.020 3958954607
54x10
7
0.733 15
250 9.906
530.056 3723109521
54x10
7
0.689 15
300 31.636
534.838 3824775730
54x10
7
0.708 15
350 -
- 54x10
7
54x10
7
1 15
350 -
- 54x10
7
54x10
7
1 15
400 22.013
524.142 3599876474
54x10
7
0.667 15
450 8.700
526.195 3642341171
54x10
7
0.675 15
500 3.546
540.529 3948189135
54x10
7
0.731 15
550 2.707
539.690 3929826076
54x10
7
0.728 15
600 2.517
534.834 3824698638
54x10
7
0.708 15
650 3.955
510.584 3327682767
54x10
7
0.616 15
700 4.910
492.108 2979351237
54x10
7
0.552 Rata-rata
0.710
Tabel 4. 10. Gaya Dalam akibat reduksi inersia 0.710 I
g
Frame Station
OutputCase CaseType
M D
N
Text cm
Text Text
N-mm N
N 15
Gempa LinStatic
637514873 185245.03
-32993.87 15
50 Gempa
LinStatic 544892356
185245.03 -32993.87
15 100
Gempa LinStatic
452269839 185245.03
-32993.87 15
150 Gempa
LinStatic 359647322
185245.03 -32993.87
15 200
Gempa LinStatic
267024805.5 185245.03 -32993.87
15 250
Gempa LinStatic
174402288.5 185245.03 -32993.87
Universitas Sumatera Utara
15 300
Gempa LinStatic
81779771.46 185245.03 -32993.87
15 350
Gempa LinStatic
-10842745.5 185245.03
-32993.87 15
350 Gempa
LinStatic -16270787.6
185407.77 -28744.11
15 400
Gempa LinStatic
-108974672 185407.77
-28744.11 15
450 Gempa
LinStatic -201678556
185407.77 -28744.11
15 500
Gempa LinStatic
-294382440 185407.77
-28744.11 15
550 Gempa
LinStatic -387086324
185407.77 -28744.11
15 600
Gempa LinStatic
-479790208 185407.77
-28744.11 15
650 Gempa
LinStatic -572494092
185407.77 -28744.11
15 700
Gempa LinStatic
-665197976 185407.77
-28744.11
Tabel 4. 11. Analisis balok pada frame 15 tahap II
Frame Station
OutputCase M
As y
f
Text cm
Text N-mm
mm
2
mm kNmm
2
15 Gempa
637514873 558.475
112.8017793 74.995
15 50
Gempa 544892356
423.538 99.72572659
71.881 15
100 Gempa
452269839 229.185
75.36158365 77.705
15 150
Gempa 359647322
156.103 63.01682508
73.311 15
200 Gempa
267024805.5 156.103
63.01682508 54.430
15 250
Gempa 174402288.5
259.803 79.84936345
28.363 15
300 Gempa
81779771.46 396.399
96.79802223 11.093
15 350
Gempa -10842745.5
519.742 109.2688586
1.314 15
350 Gempa
-16270787.6 520.011
109.2939485 1.971
15 400
Gempa -108974672
406.216 97.8706656
14.630 15
450 Gempa
-201678556 278.982
82.50506326 31.798
15 500
Gempa -294382440
156.103 63.01682508
60.007 15
550 Gempa
-387086324 156.103
63.01682508 78.904
15 600
Gempa -479790208
181.858 67.68340104
91.331 15
650 Gempa
-572494092 365.995
93.3706865 80.326
15 700
Gempa -665197976
558.475 112.8017793
78.252
Tabel 4. 11. Analisis balok pada frame 15 tahap II
Frame Station
a h-y+a
I I
g
α
Text cm
mm mm
mm
4
mm
4
15 5.767
492.965 2994941145
54x10
7
0.555 15
50 5.319
505.593 3231055601
54x10
7
0.598 15
100 3.718
528.357 3687413592
54x10
7
0.683 15
150 3.296
540.279 3942701242
54x10
7
0.730 15
200 4.439
541.422 3967780979
54x10
7
0.735
Universitas Sumatera Utara
15 250
10.794 530.944
3741858278 54x10
7
0.693 15
300 33.455
536.657 3863949189
54x10
7
0.716 15
350 -
- 54x10
7
54x10
7
1 15
350 -
- 54x10
7
54x10
7
1 15
400 25.648
527.777 3675294694
54x10
7
0.681 15
450 9.948
527.443 3668314282
54x10
7
0.679 15
500 4.026
541.009 3958718725
54x10
7
0.733 15
550 3.062
540.045 3937588992
54x10
7
0.729 15
600 2.841
535.158 3831649732
54x10
7
0.710 15
650 4.457
511.086
3337504026 54x10
7
0.618 15
700 5.527
492.725 2990569147
54x10
7
0.554 Rata-rata
0.713
Tabel 4. 12. Gaya Dalam akibat reduksi inersia 0.710 I
g
Frame Station
OutputCase CaseType
M D
N
Text cm
Text Text
N-mm N
N 15
Gempa LinStatic
637514873 185245.03
-32993.87 15
50 Gempa
LinStatic 544892356
185245.03 -32993.87
15 100
Gempa LinStatic
452269839 185245.03
-32993.87 15
150 Gempa
LinStatic 359647322
185245.03 -32993.87
15 200
Gempa LinStatic
267024805.5 185245.03 -32993.87
15 250
Gempa LinStatic
174402288.5 185245.03 -32993.87
15 300
Gempa LinStatic
81779771.46 185245.03 -32993.87
15 350
Gempa LinStatic
-10842745.5 185245.03
-32993.87 15
350 Gempa
LinStatic -16270787.6
185407.77 -28744.11
15 400
Gempa LinStatic
-108974672 185407.77
-28744.11 15
450 Gempa
LinStatic -201678556
185407.77 -28744.11
15 500
Gempa LinStatic
-294382440 185407.77
-28744.11 15
550 Gempa
LinStatic -387086324
185407.77 -28744.11
15 600
Gempa LinStatic
-479790208 185407.77
-28744.11 15
650 Gempa
LinStatic -572494092
185407.77 -28744.11
15 700
Gempa LinStatic
-665197976 185407.77
-28744.11
Tabel 4. 13. Analisis balok pada frame 15 tahap III
Frame Station
OutputCase M
As y
f
Text cm
Text N-mm
mm
2
mm kNmm
2
15 Gempa
637514873 558.475
112.8017793 74.995
15 50
Gempa 544892356
423.538 99.72572659
71.881
Universitas Sumatera Utara
15 100
Gempa 452269839
229.185 75.36158365
77.705 15
150 Gempa
359647322 156.103
63.01682508 73.311
15 200
Gempa 267024805.5
156.103 63.01682508
54.430 15
250 Gempa
174402288.5 259.803
79.84936345 28.363
15 300
Gempa 81779771.46
396.399 96.79802223
11.093 15
350 Gempa
-10842745.5 519.742
109.2688586 1.314
15 350
Gempa -16270787.6
520.011 109.2939485
1.971 15
400 Gempa
-108974672 406.216
97.8706656 14.630
15 450
Gempa -201678556
278.982 82.50506326
31.798 15
500 Gempa
-294382440 156.103
63.01682508 60.007
15 550
Gempa -387086324
156.103 63.01682508
78.904 15
600 Gempa
-479790208 181.858
67.68340104 91.331
15 650
Gempa -572494092
365.995 93.3706865
80.326 15
700 Gempa
-665197976 558.475
112.8017793 78.252
Tabel 4. 13. Analisis balok pada frame 15 tahap III
Frame Station
a h-y+a
I I
g
α
Text cm
mm mm
mm
4
mm
4
15 5.767
492.965 2994941145
54x10
7
0.555 15
50 5.319
505.593 3231055601
54x10
7
0.598 15
100 3.718
528.357 3687413592
54x10
7
0.683 15
150 3.296
540.279 3942701242
54x10
7
0.730 15
200 4.439
541.422 3967780979
54x10
7
0.735 15
250 10.794
530.944 3741858278
54x10
7
0.693 15
300 33.455
536.657 3863949189
54x10
7
0.716 15
350 -
- 54x10
7
54x10
7
1 15
350 -
- 54x10
7
54x10
7
1 15
400 25.648
527.777 3675294694
54x10
7
0.681 15
450 9.948
527.443 3668314282
54x10
7
0.679 15
500 4.026
541.009 3958718725
54x10
7
0.733 15
550 3.062
540.045 3937588992
54x10
7
0.729 15
600 2.841
535.158 3831649732
54x10
7
0.710 15
650 4.457
511.086
3337504026 54x10
7
0.618 15
700 5.527
492.725 2990569147
54x10
7
0.554 Rata-rata
0.713
Jadi, hasil analisis untuk balok pada frame 15 akibat beban gempa angka reduksi
momen inersia yaitu 0.713 I
g.
Universitas Sumatera Utara
4.2 Kolom