International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

Optimization Study of Cost and Duration of Project Implementation Case Study: Spillway Construction of Bendo Dam Project

Abstract

Good construction planning is one of the requirements for successful construction. This spillway construction with contract value of IDR99,939,304,966, - was under-schedule so that would affect the rest of the construction costs and duration. Then this study will discuss the optimization of rest costs and duration of this spillway construction. The solution in this study uses trial and error with CPM (Critical Path Method) and will get optimal costs and duration for the rest construction. The rest duration for the initial plan for construction of spillway is 192 days (9 months) with the rest contract cost of IDR46,593,769,076.80. Then control the time and cost of the remaining work using crashing with the method of adding labor and overtime work. A trial and error I result is IDR47,613,769,076.80 and IDR47,260,089,076.80 the efficiency duration is 6 months. Furthermore, trial and error 2 resulted in IDR47,721,769,076.80 and IDR 47,272,969,076.80 with a completion duration in 7 months, next trial and error 3 resulted IDR 46,621,669,076.80 and IDR 46,610,389,076.80 with 8.5 months. From the calculations and graphs of the three trials and errors get the conclusion for optimum cost results are IDR47,760,000,000,- with additional labor and IDR47,300,000,000,- with overtime work methods and the optimum duration is 138 days.

Country : Indonesia

1 Muhammad Nur Sahid2 Evie Prigiyanti

  1. Civil Engineering, Muhammadiyah University of Surakarta, Indonesia
  2. Civil Engineering, Muhammadiyah University of Surakarta, Indonesia

IRJIET, Volume 4, Issue 5, May 2020 pp. 16-23

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References

  1. Dimyati, Hamdan dan Kadar Nurjaman, 2016. Manajemen Proyek, Pustaka Setia: Bandung.
  2. Dwijono, D.2017. Optimalisasi Waktu Percepatan dan Biaya Kegiatan di dalam Metode Jalur Kritis dengan Terapan teknologi Informatika, 1(1).pp.1-9.
  3. Firmansyah, Robhi.2017. Evluation Time and Cost of Building project BPJS Surakarta (Case Study: BPJS Main Office in Surakarta Central Java).Surakarta: Universitas Muhammadiyah Surakarta.
  4. Hardianto, Agung. 2015. Analisa Pengendalian Manajemen Waktu dan Biaya Proyek Pembangunan Hotel dengan Network CPM: Studi kasus Batiqa Hotel Palembang.
  5. Heizer, Jay &Barry, Render.2011. Operations Management,Buku Satu Edisi Sembilan.Jakarta: Salemba Empat.
  6. Indra Weka Dharmawan, Devi Oktarina, Tito Catur Wibowo, (2017), Evaluasi Penjadwalan Proyek Pengembangan Rumah Sakit Mitra Husada Pringsewu.
  7. Mandagi, R.J.M.2010. Analisa Sistem.Sam Ratulangi University Press. Manado. Hal 13-14.
  8. Nur Sahid, M.2017. Teknik Pelaksanaan Konstruksi Bangunan. Kartasura: Muhammadiyah University Press.
  9. Rani, H. A. (2016). Manajemen Proyek  Konstruksi. Banda Aceh.
  10. Retnowati, Endang.2017. Optimalisasi Pelaksanaan Proyek Dengan Menggunakan Critical Path Method (Cpm) dan Crashing Proyek pada Pembangunan Renovasi Masjid An Nuur Desa Sonoageng Kabupaten Nganjuk.Simki-Economic Vol. 01 No. 01 Tahun 2017.
  11. Safiki, Ainomugisha, M. Solikin, M. Nursahid. (2015).Cost Implications of Building Design Plans: a Literature Review Analysis.Collection the 2nd ICETIA 2015.
  12. Siregar Adde Currie, 2017. “Evaluasi Waktu dan Biaya Pelaksanaan Proyek Dengan Critical Path Method (CPM). (Studi Kasus: Proyek Pembangunan Gedung Ruang Bersalin Dan Pembangunan Instalasi Bedah Sentral RSUD Ambarawa).
  13. Sujarweni, V.W.2015.Metodologi Penelitian Bisnis & Ekonomi. Yogyakarta: Pustaka Baru Press.
  14. Tawakal, M. Ikbal, dkk.2015. Analisis Manajemen Waktu pada Proyek Konstruksi Jalan Studi Kasus PT. Sarana Andalan Semesta di Kabupaten Rokan Hulu.Artikel Ilmiah.Universitas Pasir Pengairan.
  15. Widiasanti, Irika dan Lenggogeni, (2013). Manajemen Konstruksi, Remaja Rosdakarya: Bandung.
  16. Wohon, Fransisko Yeremia, dkk. 2015. Analisa Pengaruh Percepatan Durasi pada Biaya Proyek Menggunakan Program Microsoft Project 2013 (Studi Kasus: Pembangunan gereja Gmim Syaloom Karombasan). Jurnal Sipil Statik Volume 3.No.2, Hal. 141-150.

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