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All Journal International Journal of Management Science and Information Technology (IJMSIT) Jurnal Pendidikan Terapan Teknokris
Jenni Ria Rajagukguk
Universitas Krisnadwipayana
Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Other

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Analysis of The Effect of Fabrication and Installation Work on Cost Overruns in Steam Turbine Generator Projects and Coal Boilers in Palembang Jenni Ria Rajagukguk; Kudus Yallbert
International Journal of Management Science and Information Technology Vol. 2 No. 2 (2022): July - December 2022
Publisher : Lembaga Otonom Lembaga Informasi dan Riset Indonesia (KITA INFO dan RISET)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/ijmsit.v2i2.629

Abstract

Delays (time overruns, SPI < 1) and exceeding budget costs (cost overruns, CPI < 1) on EPC (Engineering, Procurement, Construction) Projects are a global phenomenon due to the very diverse and unique nature of construction projects so that many companies experience losses during construction execution work activities. A very critical job in the execution of EPC projects is fabrication and installation activities which are part of construction activities because there are very many variables that have an impact on cost overruns if the fabrication and installation work is not monitored and controlled properly.   In this study, an analysis of the effect of fabrication and installation work on cost overruns was carried out on the Steam Turbine Generator and Coal Boiler Project in Palembang.  The analysis was performed using SPSS Ver software. 25 by processing questionnaire data from the answers of 42 respondents. With good control and early anticipation of construction activities so that it can help project managers in managing projects more effectively and efficiently so that the SPI (Schedule Performance Index) and CPI (Cost Performance Index) are more than one and the achievement of other requirements in accordance with project specifications and contracts.
PENGARUH CACAT LAS TERHADAP KEKUATAN BAHAN JIS-3131 SPHC PADA KERANGKA HOSPITAL BED BAGIAN NAKADOKO BED Jenni Ria Rajagukguk
TEKNOKRIS Vol 23 No 2 (2020): Jurnal Teknokris Edisi Desember
Publisher : Fakultas Teknik Unkris Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sistem manufaktur pengelasan produk yang berkualitas tentunya harus didukung oleh pemesinan yang baik. Suatu produk pemesinan harus memenuhi sifat mekanis permukaan yang diinginkan sebagai salah satu syarat produk tersebut dapat diterima Bed . Kerangka Hospital BED bagian Nakadoko dibahan bahan SPHC bahan JIS-3131. Plat SPHC selalu juga digunakan dalam industri alat rumah tangga, dekorasi logam, pembuatan bahan chasis mobil, knalpot dan rangka kendaraan bermotor. Pada penelitian ini pada proses produk selalu mengalami cacat las, permasalahannya (1) Apa yang menyebabkan terjadinya cacat las pada kerangka Hospital Bed type examination bed bagian Nakadoko. Dan (2) Bagaimana menganalisis kekuatan pengaruh cacat las pada kerangka hospital Bed Hospital Bed type examination bed bagian Nakadoko. Sehingga tujuan penelitian mengetahui penyebab terjadinya cacat las pada kerangka Hospital Bed type examination bed bagian Nakadoko dan menganalisis kekuatan pengaruh cacat las pada kerangka hospital Bed type examination bed bagian Nakadoko. Pada konstruksi las mengalami patah ulet, yang disebabkan karna terlihat adanya deformasi plastik yang cukup banyak. Pada satu produk, setiap mengalami cacat las menunjukkan satu titik point pengelasan yang kurang pengelasannya atau disebut undercut. Hasil las tidak center dari 2 sisi yang di las yang bisa menyebabkan material patah. Kerangka Hospital Bed, sehingga hasil kekuatan sambungan las yang dihasilkan adalah 4,256 kg/mm².
PENGARUH CACAT LAS TERHADAP KEKUATAN BAHAN JIS-3131 SPHC PADA KERANGKA HOSPITAL BED BAGIAN NAKADOKO BED Jenni Ria Rajagukguk
TEKNOKRIS Vol 24 No 1 (2021): Jurnal Teknokris Edisi Juni
Publisher : Fakultas Teknik Unkris Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sistem manufaktur pengelasan produk yang berkualitas tentunya harus didukung oleh pemesinan yang baik. Suatu produk pemesinan harus memenuhi sifat mekanis permukaan yang diinginkan sebagai salah satu syarat produk tersebut dapat diterima Bed . Kerangka Hospital BED bagian Nakadoko dibahan bahan SPHC bahan JIS-3131. Plat SPHC selalu juga digunakan dalam industri alat rumah tangga, dekorasi logam, pembuatan bahan chasis mobil, knalpot dan rangka kendaraan bermotor. Pada penelitian ini pada proses produk selalu mengalami cacat las, permasalahannya (1) Apa yang menyebabkan terjadinya cacat las pada kerangka Hospital Bed type examination bed bagian Nakadoko. Dan (2) Bagaimana menganalisis kekuatan pengaruh cacat las pada kerangka hospital Bed Hospital Bed type examination bed bagian Nakadoko. Sehingga tujuan penelitian mengetahui penyebab terjadinya cacat las pada kerangka Hospital Bed type examination bed bagian Nakadoko dan menganalisis kekuatan pengaruh cacat las pada kerangka hospital Bed type examination bed bagian Nakadoko. Pada konstruksi las mengalami patah ulet, yang disebabkan karna terlihat adanya deformasi plastik yang cukup banyak. Pada satu produk, setiap mengalami cacat las menunjukkan satu titik point pengelasan yang kurang pengelasannya atau disebut undercut. Hasil las tidak center dari 2 sisi yang di las yang bisa menyebabkan material patah. Kerangka Hospital Bed, sehingga hasil kekuatan sambungan las yang dihasilkan adalah 4,256 kg/mm².
Development of a Web-Based Performance Index Assessment System for Hazardous and Toxic Waste Management Jenni Ria Rajagukguk; Helen Octory
Jurnal Pendidikan Terapan Vol 4, No 2 May (2026)
Publisher : Sakura Digital Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61255/jupiter.v4i2.1024

Abstract

Purpose: This study aims to develop a web-based performance index assessment system for hazardous and toxic waste management by integrating technical and supporting indicators using the Multi-Criteria Decision Making (MCDM) and Analytic Hierarchy Process (AHP) approaches. The study also examines the system’s role in supporting transparent environmental evaluation and applied environmental learning. Methods: A quantitative research and development approach was employed using the MCDM-AHP method. Data were collected through literature review, regulatory analysis, expert judgment involving five environmental experts, and system simulations on three industrial entities with different waste management characteristics. The system was developed using a Python-Django framework and PostgreSQL database. Findings: The results indicate that the developed system provides objective, transparent, and consistent environmental performance assessments, with performance index values ranging from 60% to 92%. Industrial entities with higher levels of digitalization and standardized environmental management systems achieved better performance scores. The integration of environmental impact assessment also improved risk identification and monitoring effectiveness. Research Implications: The findings imply that digital-based environmental assessment systems can strengthen accountability, operational efficiency, and data-driven decision-making in hazardous waste management. However, the study is limited by the small number of expert respondents and simulation entities, which may affect broader generalizability. Originality: This study offers a novel contribution by integrating environmental performance indicators, MCDM-AHP analysis, and a web-based digital assessment platform into a unified hazardous waste management evaluation system that can also support applied environmental education and sustainability-oriented industrial governance.
Analysis of The Effect of Fabrication and Installation Work on Cost Overruns in Steam Turbine Generator Projects and Coal Boilers in Palembang Jenni Ria Rajagukguk; Kudus Yallbert
International Journal of Management Science and Information Technology Vol. 2 No. 2 (2022): July - December 2022
Publisher : Lembaga Komunitas Informasi Teknologi Aceh (KITA), Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/ijmsit.v2i2.629

Abstract

Delays (time overruns, SPI < 1) and exceeding budget costs (cost overruns, CPI < 1) on EPC (Engineering, Procurement, Construction) Projects are a global phenomenon due to the very diverse and unique nature of construction projects so that many companies experience losses during construction execution work activities. A very critical job in the execution of EPC projects is fabrication and installation activities which are part of construction activities because there are very many variables that have an impact on cost overruns if the fabrication and installation work is not monitored and controlled properly.   In this study, an analysis of the effect of fabrication and installation work on cost overruns was carried out on the Steam Turbine Generator and Coal Boiler Project in Palembang.  The analysis was performed using SPSS Ver software. 25 by processing questionnaire data from the answers of 42 respondents. With good control and early anticipation of construction activities so that it can help project managers in managing projects more effectively and efficiently so that the SPI (Schedule Performance Index) and CPI (Cost Performance Index) are more than one and the achievement of other requirements in accordance with project specifications and contracts.
Co-Authors Helen Octory Kudus Yallbert