Firdaus, Dimas Ainun (2017) Analisis Kriteria Proses Keruntuhan Struktur Jacket dengan Variasi Skirt Pile Berbasis Keandalan. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Analisis ultimate strength dilakukan untuk mengetahui besarnya kapasitas struktur dalam menerima beban maksimal. Pada Tugas Akhir ini dilakukan analisis proses terjadinya collapse pada jacket platform LB PHE ONWJ menggunakan metode pushover dengan software SACS yang mengkonfigurasikan 3 tipe skirt pile. Dengan meningkatkan beban lateral (lingkungan) secara bertahap (increment), sehingga struktur mengalami collapse dan didapat nilai Reserve Strength Ratio (RSR). Kedalaman dari masing masing konfigurasi pile juga memberikan pengaruh terhadap analisis pushover. Dari analisis pushover didapatkan struktur runtuh pada konfigurasi 1 skirt pile arah pembebanan 270º dengan nilai RSR terkecil sebesar 4,4176, variasi 2 skirt pile arah pembebanan 270º dengan nilai RSR terkecil sebesar 4,3655, dan variasi 3 skirt pile arah pembebanan 0º dengan nilai RSR terkecil sebesar 4,8767. Analisis Monte Carlo digunakan untuk menemukan POF masing-masing member yang gagal dilanjutkan analisis RBD untuk mendapatkan keandalan sistem struktur jacket, POF sistem terkecil terjadi di konfigurasi 3 skirt pile sebesar 0,01987 dengan keandalan sistem mencapai 0,98012.==========================================================================================================
The ultimate strength analysis is done for determine the amount of structural capacity in receiving maximum load. In this Final Project do analysis of the collapse process on LB PHE ONWJ jacket platform using pushover method with SACS software that configure 3 types of skirt pile. By increasing the lateral load (environment) do increment, so the structure collapse and find the value of Reserve Strength Ratio (RSR). The depth of each pile configuration, gives effect to pushover analysis. From pushover analysis, the structure collapsed in 1 skirt pile configuration of 270º loading direction with the smallest RSR value of 4,4176, 2 skirt pile variation of 270º loading direction with the smallest RSR value of 4,3655, and 3 skirt pile variation of 0º loading direction with the smallest RSR value of 4,8767 . Monte Carlo analysis was used to find the POF of member failed then continue with RBD analysis to find reliability of the jacket structure system, the smallest POF system occurred in the 3 skirt pile configuration of 0,01987 with system reliability 0,98012.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSKe 627.98 Fir a |
| Uncontrolled Keywords: | ultimate strength, skirt pile, Monte Carlo, RBD, POF |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Dimas Ainun Firdaus |
| Date Deposited: | 01 Feb 2018 01:49 |
| Last Modified: | 08 Mar 2019 04:18 |
| URI: | http://repository.its.ac.id/id/eprint/45358 |
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