REROUTING JALUR PIPA AVTUR PADA PROYEK PEMBANGUNAN DEPOT PENGISIAN PESAWAT UDARA DI KULON PROGO

Abstract – The construction phase of the Airplane Refueling Station project has begun, but a constructionerror occurred, resulting in the crash of line number 31-6"-JA-A-511 with the platform and causingdisplacement due to thermal expansion loads. Based on this issue, two alternative rerouting options wereproposed: alternative rerouting 1 and alternative rerouting 2. The calculation of the allowable pipe span forboth designs resulted in a value of 7.27 ft with 9 supports, using rest guides and u-bolts as support types. Theflexibility values for both new designs were found to be below K1, meeting the criteria. The largest sustainedload stress was calculated to be 4019 psi, the largest occasional load stress was 4211 psi, and the largestthermal expansion load stress was 5404 psi. These stress values were obtained from alternative rerouting 1,indicating that alternative rerouting 1 has higher stress values compared to alternative rerouting 2. Stresscalculations for both alternative rerouting 1 and alternative rerouting 2 were performed using stress analysissoftware. The cost analysis results for alternative rerouting 1 amounted to Rp 50,364,623, while the costanalysis for alternative rerouting 2 amounted to Rp 49,080,623. Therefore, based on the comparison of stressanalysis and cost analysis, alternative rerouting 2 is chosen as it has lower stress values and more affordablecosts