Nugraha, Rizky (2017) Desain alternatif Jembatan Musi III menggunakan Sistem Multi-Span Cable-Stayed dengan Fishbone Model. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pada Tugas Akhir ini membahas mengenai desain alternatif jembatan Musi III yang terdiri dari jembatan utama berupa Multi-span Cable-stayed. Jembatan ini memiliki panjang 960 m yang terbagi dalam 3 bentang utama dengan masing-masing panjang 240 m dan 2 bentang tepi dengan masing-masing panjang 120 m. Konfigurasi kabel jembatan menggunakan fan pattern dengan posisi kabel two inclined planes system. Jembatan memiliki lebar lantai kendaraan 20,5 m (4/UD), lantai kendaraan didesain lebar agar jembatan tahan terhadap efek aerodinamis.
Adapun hasil dari perencanaan ini dibatasi hanya pada elemen uperstructure. Dalam pembahasan ini lantai kendaraan di desain berupa plat beton dengan steeldeck, sedangkan gelagarnya menggunakan balok komposit dan box baja non-komposit. Kemudian stay cable tersusun atas 7-wire strand berdiameter 15,2 mm. Sedangkan pylon didesain menggunakan material beton bertulang. Untuk permodelan struktur utama menggunakan analisa fishbone model dengan pembebanan statis dan dinamis, selanjutnya analisa metode pelaksanaan (staging analysis) menggunakan metode demolishing procedure melalui backward solution dengan menggunakan program bantu MIDAS/Civil. Pembebanan staging analysis adalah berupa reaksi perletakan form traveler akibat berat sendiri dan lantai kendaraan yang diangkat. Selanjutnya jembatan juga dianalisa stabilitas aerodinamis yang meliputi kontrol terhadap frekuensi alami, efek flutter, dan juga vortex-shedding.
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This final project aimed to discuss about the alternative
design of Musi III bridge which consist of main bridge in the form
of Multi-span Cable-stayed. This bridge has span of 960 m and it
divided into 3 main spans with each length of 240 m and 2 side
spans with each length of 120 m. Cable bridge configuration
using fan pattern with two inclined planes system. The deck of
bridge has width of 20,5 m (4/UD), deck was designed as wide
deck, so the bridge can resist to aerodynamic effects.
The result of this final project was restricted to the
uperstructure element. In this design, the deck of bridge consist of
concrete slab with steeldeck, the girders wasusing composite
beam and non-composite steel box. Then stay cable is made up of
7-wire strand with diameter of 15,2 mm. While the pylon designed
using reinforced concrete material. For the main structure
modeling was using fishbone model analysis with static load and
dynamic load. Staging analysis was using demolishing procedure
method through backward solution using MIDAS/Civil program.
The load of staging analysis was taken from form-traveler joint
reaction due to its self weight and the deck that lifted by formtraveler.
Then, the bridge also analyzed aerodinamic stability
which include control of natural frequency, flutter effect, and also
vortex shedding effect.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | multi-span cable-stayed; fishbone model; balok komposit; box baja; composite beam; steel box. |
| Subjects: | T Technology > TG Bridge engineering |
| Divisions: | Faculty of Civil Engineering and Planning > Civil Engineering > 22201-(S1) Undergraduate Thesis |
| Depositing User: | RIZKY NUGRAHA |
| Date Deposited: | 22 Mar 2017 03:04 |
| Last Modified: | 05 Mar 2019 07:11 |
| URI: | http://repository.its.ac.id/id/eprint/2362 |
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