PERANCANGAN TALI MOORING UNTUK SISTEM TAMBAT STRUKTUR TERAPUNG BARGE DALAM PEKERJAAN PEMANCANGAN DI SELAT MADURA
Mooring Rope Design for Floating Barge Structure Used on Piling Project Located in Madura Strait
Pranaja Abel Amanta 1 dan Krisnaldi Idris 2
Program Studi Teknik Kelautan
Fakultas Teknik Sipil dan Lingkungan,
Institut Teknologi Bandung,
Jl. Ganesha 10 Bandung 40132
1 abelamanta_p@gmail.com dan 2 krisnaldi@ocean.itb.ac.id
Abstract: The work of piling piles in the construction of a sea pier is generally carried out using land-based equipment. In cases where the piling equipment cannot be operated from land, especially in sea, a barge structure is used to accommodate the piling work. The barge structure, which is a floating structure, can move as a result of environment force in open sea, so a mooring rope is needed which is able to control or withstand the movement of the barge structure in accordance with existing restrictions or conditions (standard). The design process of this mooring rope will follow the requirements or design criteria based on the API RP 2SK reference, which includes the maximum tension requirements by using the safety factor of the minimum breaking load value and the requirements for displacement offset of the floating structure. The design of the mooring rope will have variations in the choice of location of the barge in the piling work, the origin direction in the environmental force regarding the barge, and the properties of the mooring rope itself. The help of structural response modeling software is used in which the output can later be analyzed in the form of tension values on the mooring rope and the response to the displacement of the barge structure. The analysis of the modeling output states that the mooring rope variation of 60 mm grade 1960 Mpa with a minimum breaking load value of 2510 kN has a mooring rope tension value and a barge structure displacement that meets the requirements of maximum tension and maximum displacement standards.
Key words: barge, mooring, minimum breaking load, tension, response, displacement, API RP 2SK.
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