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

Abstract

Abstract – The construction phase of the Airplane Refueling Station project has begun, but a construction
error occurred, resulting in the crash of line number 31-6"-JA-A-511 with the platform and causing
displacement due to thermal expansion loads. Based on this issue, two alternative rerouting options were
proposed: alternative rerouting 1 and alternative rerouting 2. The calculation of the allowable pipe span for
both designs resulted in a value of 7.27 ft with 9 supports, using rest guides and u-bolts as support types. The
flexibility values for both new designs were found to be below K1, meeting the criteria. The largest sustained
load stress was calculated to be 4019 psi, the largest occasional load stress was 4211 psi, and the largest
thermal 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. Stress
calculations for both alternative rerouting 1 and alternative rerouting 2 were performed using stress analysis
software. The cost analysis results for alternative rerouting 1 amounted to Rp 50,364,623, while the cost
analysis for alternative rerouting 2 amounted to Rp 49,080,623. Therefore, based on the comparison of stress
analysis and cost analysis, alternative rerouting 2 is chosen as it has lower stress values and more affordable
costs.