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All Journal JURNAL TEKNIK SIPIL Journal of Innovation and Technology
Jurisman Amin
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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PENYEBAB DAN DAMPAK VARIATION ORDER PADA PELAKSANAAN PROYEK KONSTRUKSI JEMBATAN (Studi Kasus pada Pelaksanaan Proyek Konstruksi jembatan di Provinsi Aceh) Jurisman Amin
Jurnal Teknik Sipil Vol 2, No 1 (2013)
Publisher : Jurnal Teknik Sipil

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Abstract

Perubahan perintah kerja (variation order), dalam realitanya sering terjadi karena penerapan tahap pelaksanaan kerja belum tentu sesuai rencana terhadap waktu, biaya, dan mutu. Hal inilah yang menjadi latar belakang untuk mengetahui faktor penyebab variation order. Tujuan penelitian ini adalah untuk mengetahui penyebab dan dampak variation order pada pelaksanaan proyek pembangunan jembatan. Penelitian ini dilaksanakan dengan penyebaran kuesioner kepada pihak owner, konsultan dan penyedia jasa. Analisa data kuesioner menggunakan instrument skala Guttman. Pengujian variable dapat dilakukan dengan menguji koefisien reprodusibilitas, skalabilitas, validitas dan reliabilitas.Dampak variation order dikaji pada data dokumen kontrak beserta addendum kontrak. Hasil penelitian diperoleh peringkat penyebab variation order. Penyebab berdasarkan desain adalah masalah keterlambatan persetujuan gambar desain. Diikuti penyebab pelaksanaan lapangan adalah kurangnya konsultasi sebelum melanjutkan pekerjaan lapangan. Kemudian penyebab berdasarkan mutu adalah penurunan kualitas konstruksi sebelum batas akhir masa pemeliharaan. Penyebab berdasarkan biaya adalah karena pengurangan biaya disebabkan keterbatasan anggaran pada  waktu pelaksanaan. Serta penyebab berdasarkan waktu adalah karena keterlambatan proses surat perintah mulai kerja. Hasil penelitian dampak variation order terjadi pada biaya, karena penambahan biaya terjadi implikasi terhadap tambahan volume kerja. Diikuti dengan dampak terhadap waktu, karena setiap terjadi penambahan lingkup kerja atau volume kerja belum tentu dapat menimbulkan dampak terhadap perpanjangan waktu pelaksanaan. Kata kerja: variation order, proyek jembatan
Risk Probability of Time and Cost on Building Construction Project: A Monte Carlo Simulation Hafnidar A Rani; Jurisman Amin; Afizah Ayob; Dekky Al Rahmatillah
Jurnal Inovasi Teknologi Vol 3 No 2 (2022): October
Publisher : Engineering Forum of Western Indonesian Government Universities Board (Forum Teknik, BKS-PTN Wilayah Barat) Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/jit.v3i2.5192

Abstract

Construction project has never been avoided by not only low risk but also high risk. It can also occur in building and infrastructure construction project of Aceh Regional Intelligent Agency (BINDA) office complex. The complex structural works can impact the significant risk to the project construction process. To minimize the risk, it is required to review the risk analysis to the time and the cost. The problem of the research was how many probabilities of the highest risk by using Monte Carlo. The objective of the research was to analyze the highest risk probability percentage of time and cost in building construction project by using Monte Carlo simulation. Sampling technique used was census sampling by using 18 respondents. The variables used were contractual risk, construction risk, material and equipment risk, design and technology risk, and force majeure risk. The output of risk acceptability level analysis by using probability and impact found that the dominant risk in undesirable category is wrong implementation as the highest value of 7.50 risk value. The simulation output of Monte Carlo by using @risk software resulted that project duration time was 460 days on 99% probability. For probability distribution of cost estimation resulted that budget plan estimation was IDR 1,991,000,000 on 99% probability, so the project cost estimation can get the benefit as 1.00% by using @risk simulation. Therefore, the response provided is coordination to supervision consultant and owner.
Co-Authors Afizah Ayob Dekky Al Rahmatillah Hafnidar A. Rani