Analisis Pushover Struktur Penambatan Jeti Akibat Beban Sandar Liquified Natural Gas Carrier

Putra, Daffa Khrisnadika (2026) Analisis Pushover Struktur Penambatan Jeti Akibat Beban Sandar Liquified Natural Gas Carrier. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Gas alam memegang peranan vital dalam strategi transisi energi pemerintah Indonesia untuk mencapai target net zero emission pada tahun 2050. Peningkatan kebutuhan energi global mendorong penggunaan kapal pengangkut gas yang lebih besar, seperti Liquified Natural Gas Carrier (LNGC), guna meningkatkan efisiensi operasional. Namun, penggunaan kapal dengan kapasitas yang lebih besar memerlukan kajian mendalam terhadap kekuatan Penambatan Jeti, terutama mengingat kondisi struktur eksisting yang telah berumur dan mengalami degradasi material akibat korosi di lingkungan laut. Penelitian ini bertujuan untuk menganalisis kekuatan struktur Breasting Dolphin dan Mooring Dolphin pada Jetty Mooring dalam menerima beban sandar dari LNGC dengan Deadweight 92,713.00 Ton. Fokus utama penelitian adalah menentukan nilai Reserve Strength Ratio (RSR) untuk mengetahui sisa cadangan kekuatan struktur eksisting secara global serta menganalisis defleksi akibat beban tabrakan sisi kapal terhadap struktur. Metodologi yang digunakan dalam tugas akhir ini meliputi pemodelan numerik menggunakan software SAP2000 untuk melakukan analisis Pushover guna mendapatkan nilai RSR. Selanjutnya, Hasil analisis dibandingkan dengan mempertimbangkan variasi pada kecepatan sandar kapal untuk menentukan Nilai Reserve Strength Ratio struktur akibat beban yang diterima. Beban yang dipertimbangkan mencakup beban kapal, beban lingkungan serta beban dinamis lainnya. Hasil dari penelitian ini diharapkan dapat memberikan Gambaran komprehensif mengenai kelayakan struktur Jetty dalam mengakomodasi operasional kapal LNGC yang lebih besar dari spesifikasi desain awalnya.
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Natural gas plays a vital role in the Indonesian government's energy transition strategy to achieve its net-zero emission target by 2050. The increase in global energy demand has driven the use of larger gas carrier ships, such as Liquefied Natural Gas Carriers (LNGCs), to improve operational efficiency. However, utilizing vessels with larger capacities requires an in-depth assessment of the jetty mooring strength, particularly considering the condition of the existing structures, which are aging and have experienced material degradation due to corrosion in the marine environment. This research analyze the strength of the Breasting Dolphin and Mooring Dolphin structures at the Jetty Mooring in receiving berthing loads from an LNGC with a displacement of 127,641.53 Tons. The primary focus of the study is to determine the Reserve Strength Ratio (RSR) value to identify remaining reserve strength of the existing structure globally, as well as to analyze the deflection caused by the ship's side collision load against the structure.The methodology utilized in this final project includes numerical modeling using SAP2000 software to perform a pushover analysis to obtain the RSR value. Furthermore, The analysis results were compared while accounting for variations in vessel berthing speeds to determine the structure's Reserve Strength Ratio under the applied loads. The loads considered included vessel loads, environmental loads, and other dynamic loads. The findings of this study are expected to provide a comprehensive overview of the jetty structure's suitability for accommodating LNGC operations involving vessels that exceed the original design specifications.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Penambatan Jeti, Breasting Dolphin, Rasio Cadangan Kekuatan, Mooring Dolphin, Gas Alam Cair. ======================================================================================================================== Jetty Mooring, Breasting Dolphin, Reserve Strength Ratio, Mooring Dolphin, Liquefied Natural Gas.
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering > TC357 Harbor Engineering. Piers, quays, and wharves
Divisions:	Faculty of Marine Technology (MARTECH) > Offshore Engineering > 54040-(S1) Undergraduate Thesis
Depositing User:	Daffa Khrisnadika Putra
Date Deposited:	31 Jul 2026 06:32
Last Modified:	31 Jul 2026 06:32
URI:	http://repository.its.ac.id/id/eprint/139395

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