Reswara, Rishad Abdullah (2021) ANALISIS PUSHOVER JACKET PLATFORM BERBASIS KEANDALAN AKIBAT SUBSIDENCE. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Di Indonesia terdapat sekitar 400 bangunan tipe jacket platform dikarenakan tipe perairan di Indonesia adalah perairan dangkal. Banyak hal yang dapat menyebabkan kekuatan suatu struktur berkurang, salah satunya adalah penuruan tanah atau subsidence. Subsidence merupakan suatu proses gerakan penurunan muka tanah yang didasarkan atas suatu datum tertentu. Banyak hal yang dapat menyebabkan penurunan tanah seperti pembebanan diatas permukaan,eksplorasi minyak dan lainnya. Di Indonesia sendiri sudah ada kasus suatu struktur mengalami penurunan tanah yang menyebabkan kerugian yang tidak sedikit. Oleh karena itu diperlukan analisis pushover pada struktur yang telah mengalami penurunan kekuatan dan berada pada kondisi ultimate. Analisis pushover ini adalah suatu analisis untuk mengetahui RSR (Reserve Strength Ratio) atau kekuatan sisa pada suatu struktur. Analisa keandalan juga diperlukan pada penelitian ini karena untuk mengetahui peluang kemungkinan suatu struktur akan runtuh. Dari hasil analisis keandalan didapatkan keandalan struktur saat mengalami subsidence 2 m adalah 0,99 pada kedalaman subsidence 2,5 m keandalan struktur adalah 0,96 dan pada kedalaman subsidence 3 m keandalan struktur adalah 0,94
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Many things can cause the strength of a structure to decrease, one of which is subsidence. Subsidence is a process of land subsidence movement based on a certain datum. Many things can cause land subsidence such as loading on the surface, oil exploration and others. In Indonesia itself, there have been cases of a structure experiencing land subsidence which caused significant losses. Therefore,analysis is needed pushover on structures that have decreased in strength and are incondition ultimate. Thisanalysis pushover is an analysis to determine the RSR (Reserve Strength Ratio) or residual strength in a structure. Reliability analysis is also needed in this study because it is to determine the possibility of a structure collapsing. From the results of the RSR analysis in the direction of loading 150. From the results of the reliability analysis, the reliability of the structure when subjected to 2 m subsidence is 0.99 at a subsidence depth of 2.5 m the reliability of the structure is 0.96 and at a subsidence depth of 3 m the reliability of the structure is 0.94
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Subsidence, Ultimate, Pushover, Reserve Strength Ratio, Monte Carlo |
| 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: | Rishad Abdullah Reswara |
| Date Deposited: | 13 Nov 2025 10:25 |
| Last Modified: | 13 Nov 2025 10:25 |
| URI: | http://repository.its.ac.id/id/eprint/87665 |
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