Bagus, Muhamad (2019) Modifikasi Desain Jembatan Lemah Ireng 1 di Tol Semarang-Solo menggunakan Sistem Cable-Stayed Bridge dengan A-Tower Tipe Semi-Fan. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Jembatan cable-stayed merupakan salah satu jenis dari jembatan bentang panjang yaitu jembatan dengan bentang lebih dari 100 m. Jembatan jenis ini mampu menopang bentang yang panjang dan proses pembangunannya relatif cepat. Struktur cable-stayed terdiri atas gelagar utama yang berfungsi sebagai lantai kendaraan, kabel yang berfungsi untuk menopang gelagar utama dan menyalurkan beban dari gelagar utama ke pylon, dan pylon sebagai penahan beban dari kabel. Pada desain ini membahas modifikasi Jembatan Lemah Ireng 1 di Tol Semarang-Solo yang memiliki bentang 879 m. Konfigurasi kabel jembatan menggunakan tipe semi-fan dengan posisi pylon two inclined planes system. Untuk lantai kendaraan didesain agar tahan terhadap efek aerodinamis. Adapun hasil dari perencanaan ini, digunakan orthotropic steel deck dengan tebal pelat deck 19 mm, lebar pelat deck 600 mm, tinggi web ribs 290 mm, tebal web ribs 8 mm, lebar flange ribs 300 mm, tebal flange ribs 8 mm kemudian stay cable tersusun atas 7-wire strand yang mempunyai bermacam-macam variasi diameter dan pylon yang didesain menggunakan material beton bertulang dengan dimensi 6000 mm x 12000 mm dengan rongga didalamnya. Untuk permodelan struktur utama dan analisa struktur menggunakan program bantu MIDAS/Civil dengan pembebanan statis dan dinamis. Metode pelaksanaan (staging analysis) menggunakan metode demolishing procedure melalui backward solution. Selanjutnya jembatan juga dianalisa stabilitas aerodinamis yang meliputi kontrol terhadap frekuensi alami, efek flutter, dan juga vortex-shedding.
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Cable-stayed bridge is one type of long-span bridge that is a bridge with a span of more than 100 m. This type of bridge can support a long span and the development process is relatively fast. The cable-dwelling structure consists of a main girder which functions as a vehicle floor, cables that work to support the main girder and deliver the load from the main girder to the mast, and the pole as a load restraint from the cable. Lemah Ireng 1 bridge on Semarang-Solo Toll Road which has a span of 879 m. The cable bridge configuration uses a semi-fan type with the position of the pylon two inclined systems. For the floor of the vehicle designed to be resistant to aerodynamics. As for the results of this plan, orthotropic steel decks with deck plates 19 mm thick, 600 mm wide plate deck, 290 mm high web ribs, 8 mm web rib thickness, 300 mm rib ribs width, 8 mm thick flanged ribs then live arranged wires 7-wire top strand that has a variety of diameter and pole variations designed using reinforced concrete material with dimensions of 6000 mm x 12000 mm with a cavity inside. For main structure modeling and structural analysis using MIDAS / Civil assistive programs with statistical and dynamic loading. Implementation methods (staging analysis) use the method of destruction of procedures through a backward solution. Furthermore, the bridge also discusses aerodynamics which are equipped with control of natural frequencies, vibrating effects, and also vortex-shedding.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSS 624.22 Bag m-1 2019 |
| Uncontrolled Keywords: | cable-stayed bridge, orthotropic steel deck, open ribs, semi-fan pattern, two inclined planes system |
| Subjects: | T Technology > TE Highway engineering. Roads and pavements > TE7 TG300 Bridges--Design and construction. T Technology > TG Bridge engineering T Technology > TH Building construction > TH1095 Earthquakes and building |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22201-(S1) Undergraduate Thesis |
| Depositing User: | Muhamad Bagus |
| Date Deposited: | 23 May 2022 02:31 |
| Last Modified: | 23 May 2022 02:31 |
| URI: | http://repository.its.ac.id/id/eprint/66505 |
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