Sutardi Sutardi
Universitas Trisakti

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Analisis Pengaruh Faktor Dominan Terhadap Kinerja Kontrak Pelaksanaan Konstruksi Jaringan Transmisi dari Aspek Biaya, Waktu dan Mutu Wenny Rosdiana; Sutardi Sutardi
INDONESIAN JOURNAL OF CONSTRUCTION ENGINEERING AND SUSTAINABLE DEVELOPMENT (CESD) Vol. 4 No. 2 (2021): INDONESIAN JOURNAL OF CONSTRUCTION ENGINEERING AND SUSTAINABLE DEVELOPMENT (CES
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (591.465 KB) | DOI: 10.25105/cesd.v4i2.10379

Abstract

The construction of 150 SUTT Transmission Line Jatigede Incomer is located in Sumedang Regency, West Java. The problems that exist in this project are: (1.) Procurement of Materials, (2.) Land acquisition, (3.) Design Changes, and (4.) The Covid-19 pandemic. As a result of these problems, the project was delayed and required an extension of 442 days (245% of the initial contract which was only 180 days) and 4.89% additional cost of the initial contract. This research aims to study the efforts in order to improve contract performance from cost, time and quality aspects. The analysis was carried out using the method of fishbone diagram analysis for two conditions, which were the initial conditions and its improvement efforts in terms of cost, time and quality, while the concept of earned value was to determine the dominant factor that caused the increase in costs and time. From the results of the analysis, it can be said that the dominant factor that affects the increase in costs is design changes which is 95% of the total amendment cost and causes an extension time of 73% of the total additional time for contract amendments. The impact of the covid-19 pandemic which resulted in the termination of the project for approximately 120 days was the dominant factor in the contract amendment (approximately 27% of 442 days). Regarding problems related to material procurement, it only causes 1.36% additional cost of the total cost amendment, which caused by transportation costs. Land acquisition carried out in stages does not result in additional time or additional contract costs. The quality of the foundation and tower structure work can be maintained in accordance with the requirements in the contract.
Evaluasi Penerapan Contract Change Order Sebagai Solusi Permasalahan Perubahan Lingkup Kontrak Bintang Putra Nusantara; Sutardi Sutardi
Jurnal Teknik Sipil Vol 19 No 2 (2023): Jurnal Teknik Sipil
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jts.v19i2.4508

Abstract

Construction industry activities are increasing. Construction industry players need to be prepared to face the possibility of changes of design planed that are not in accordance with field conditions. The purpose of this research is to identify, analyze the causes and impacts of Contract Change Orders (CCO) at the pre-construction, construction implementation, and post-construction stages with case study is Proyek Simpang Susun Balaraja Timur at Tol Jakarta – Merak, Kabupaten Tangerang. The research method used is descriptive and qualitative methods by conducting Earned Value Analysis and Fishbone Analysis to identify the causal factors and impacts of CCO so that efforts can be made to mitigate the performance of the construction contract from the aspect of quality, cost, and time. The results of the analysis show 3 factors causing CCO namely consultant factors, such as lack of planning preparation and non-compliance with field conditions, project owner factors, and contractor factors. The results of Earned Value Analysis with Estimate at Completion (EAC) calculations can be used to identify the need for additional contract value and additional execution time. On initial contract identification: Cost Performance Index (CPI) is 0.77 (insufficient costs with cost overrun – Rp.  52.502,111,631.83) and Schedule Performance Index (SPI) 1.21, means that Addendum 1 needs to be done with the results: CPI is 1.17 (the costs used are sufficient from the available fees), EAC is Rp. 189,848,751,106.02 with changes in the contract value is Rp. 222,017,999,900.65, SPI is 1.21 from the initial contract value Rp. 174,437,684,167.96