Studi Komparatif Dampak Kemiringan Struktur Terhadap Integritas Fixed Offshore Platform

Rachmanilah, Ira (2025) Studi Komparatif Dampak Kemiringan Struktur Terhadap Integritas Fixed Offshore Platform. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 5046211009-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 April 2027. Download (4MB) | Request a copy

Abstract

Kesalahan pada instalasi atau installation error dapat menjadi salah satu penyebab kemiringan yang mungkin terjadi pada stuktur anjungan lepas pantai. Hal ini akan berdampak pada perubahan perilaku struktur dan menjadi berbahaya apabila kemiringan terjadi masa struktur sedang beroperasi. Maka, diperlukan evaluasi terhadap perubahan kemiringan untuk menjadi pertimbangan estimasi integritas dan akan ditinjau pondasi pada anjungan lepas pantai terpancang. Penelitian ini melakukan analisis anjungan lepas pantai terpancang pada kondisi tegak dan miring dengan skenario kemiringan +X, -X, +Y, dan -Y masing masing pada kemiringan 5 derajat, menggunakan inplace analysis akan ditemukan Unity Check (UC) terbesar pada struktur, dilanjutkan dengan pushover analysis untuk melihat pola kegagalan struktur sebelum terjadi collapse. Sebagai parameter, nilai Unity Check (UC), Reserve Strength Ratio (RSR) dan base shear struktur akan dipertimbangkan untuk menilai integritas struktur.
==================================================================================================================================
Installation errors can be one of the causes of tilt that may occur on an offshore jacket structure. This will have an impact on changes in structural behavior and become dangerous if the tilt occurs while the structure is in service condition. Therefore, it is necessary to evaluate the change in structural tilt to be considered for estimating the integrity and foundation of the jacket structure. This research analyzes the jacket structure in intact and tilting condition with +X, -X, +Y, and -Y, respectively on 5-degree tilt scenarios, using the largest Unity Check (UC) from inplace analysis, followed by pushover analysis to see the pattern of structural failure before collapse. As parameters, the Unity Check (UC), Reserve Strength Ratio (RSR) and base shear (SF) values will be considered to assess the integrity of the structure.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Anjungan lepas pantai terpancang, Analisis pushover, Kemiringan struktur, Base Shear, Suction Pile, Fixed Offshore Structure, Pushover analysis, Structural tilt
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering > TC1665 Offshore structures--Materials. T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures
Divisions:	Faculty of Marine Technology (MARTECH) > Offshore Engineering > 54040-(S1) Undergraduate Thesis
Depositing User:	Ira Rachmanilah
Date Deposited:	22 Jan 2025 03:37
Last Modified:	22 Jan 2025 03:37
URI:	http://repository.its.ac.id/id/eprint/116528

Actions (login required)

View Item