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Journal : Jurnal Teknik Industri Terintegrasi (JUTIN)

Kajian pengendalian waktu dan biaya dengan metode nilai hasil dan simulasi monte carlo Rahmayana, Rahmayana; Bachmid, Sofyan; Maricar, Husni
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 1 (2025): January
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i1.41834

Abstract

It is not uncommon for a project to be built to experience deviations, either in terms of time exceeding the plan, or implementation costs increasing beyond the project's Implementation Budget Plan (RAP). In this research, namely the renovation and relocation project of Bank Mandiri Malino sub-branch office, Gowa Regency, it is deemed necessary to control costs and time using the value of results and Monte Carlo concept methods to overcome all risks of uncertainty that affect project delays, cost and time performance and value. probability of accuracy of costs and time in the construction of the project. The value concept results from analyzing the Planned Cost Budget (RAB), prices of wages and materials as well as actual project costs. Then, using the Monte Carlo method, analyzes the varying cost and time ranges obtained from interviews with contractors. Analysis carried out by comparing manual calculations and using monitoring software based on the value of results concept method shows that the estimated project completion costs 1,375,951,311.10 with a project duration of 146 days. Meanwhile, the cost of completing the project based on Monte Carlo simulation is 1,608,123,328.80 with a completion time of 130 days.
Evaluasi Biaya pada Pembangunan Gedung Auditorium Politeknik Ilmu Pelayaran Kota Makassar Hamkas, Martin; Ashad, Hanafi; Bachmid, Sofyan
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 2 (2025): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i2.42693

Abstract

The construction of the Maritime Science Polytechnic building in Makassar City (PIP), is based on the results of a planning review which consists of several activity components, namely; Preparation of work, Land, Structure, Architecture, Mechanical, Power House. With reference to the RAB, the Structure component constitutes the largest portion of the budget allocation of Rp. 51,058,734,268.85. In this way, these work items allow for evaluation, with the aim of efficiency or cost savings while remaining functional and maintaining good quality. Using the evaluation method approach, the floor base plate work item which is the sub-work of the BOC -010 elevation structure which originally used reinforcement using the conventional method was changed to using Wiremesh. After analyzing the reinforcement calculations, it was found that As w > As needed = 904.32 mm2 > 723,456 mm2. So the use of D20-150 iron bar can be replaced with M12-150 wiremesh iron. The results obtained from the results of the conversion analysis which originally used D20 – 150 iron bars, the unit price for conventional iron was Rp. 16,347.56 per kilogram to wiremesh M 12-150 unit price of Rp. 10,060.96 per kilogram. The final results show that; conventional reinforcement according to plan Rp., 16,347.56 x 122,976 = Rp. 2,010,357,646.00 while the price after changes (wiremesh) is IDR 10,060.96 x 122,976.00 = IDR. 1,237,256,616.96. The research results show that in terms of costs, by replacing conventional iron with wire mesh, savings of IDR 1,522,768,824.03 are obtained or with a savings weight of 1.19% of the total budget amount.