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All Journal JOURNAL TEKNIK SIPIL DAN INFRASTRUKTUR Jurnal Aplikasi Teknik Sipil Menara: Jurnal Teknik Sipil Jurnal Kajian dan Penelitian Umum RESLAJ: Religion Education Social Laa Roiba Journal
Tri Joko Wahyu Adi
Unknown Affiliation
Religion Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences Transportation Other

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PEMODELAN ESTIMASI BIAYA KONTINGENSI BERBASIS RESIKO PADA PROYEK ENGINEERING-PROCUREMENT-CONSTRUCTION Wahyu Adi, Tri Joko; Yunwanti, Suly
JOURNAL TEKNIK SIPIL DAN INFRASTRUKTUR Vol 4, No 1 (2014)
Publisher : Jurusan Teknik Sipil Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (684.843 KB)

Abstract

EPC (Engineering-Procurement-Construction) Project is a project in which the process of design, procurement and construction are carried out by a construction company. The complexity of EPC project resulted in many uncertainties that must be addressed by the project implementers. To anticipate the risk of cost overruns due to the uncertainty, project implementers need to prepare the unexpected costs. Currently, implementation of contingency estimation is done by directly increasing project costs by 5% -10%; while in theory, the amount of the contingency cost is estimated using Montecarlo simulation techniques. This simulation techniques, despite widely used, still has the disadvantage. Risks are assumed by providing lower and upper limit values of the cost of the risks that might occur in the project activity. In fact, every activity has different risk and different weights of impact. The objective of this research is to create a contingency-based cost estimation model by considering the types of risk and its impact on project activity. Project Risks were obtained from preliminary surveys and literature studies. Probability weights were analyzed using probability-Impact matrix and pair-wise comparison. Contingency cost calculation was done using Montecarlo simulations. For the purpose of model validation, procurement & Gas Piping Distribution project in Greater Jakarta was used as case study. The results of case study simulation showed that the contingency cost is 4.57% of the project budget, with a deviation of 0.82%. The accuracy test of the model against the actual cost of the project showed 0.63% difference to the simulation results. Therefore the proposed model is proved has good accuracy. Keywords: risk analysis, contingency cost,  Montecarlo Simulation, EPC Project
IDENTIFIKASI KELEMAHAN METODE EARNED VALUE PADA PENGUKURAN KINERJA BIAYA DAN WAKTU PROYEK KONSTRUKSI F., Fahirah; Wahyu Adi, Tri Joko; Anwar, Nadjadji
JOURNAL TEKNIK SIPIL DAN INFRASTRUKTUR Vol 3, No 2 (2013)
Publisher : Jurusan Teknik Sipil Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (272.95 KB)

Abstract

Earned Value method (EV) has several weaknesses which makes it difficult to optimally apply in the construction projects. This study aims to identify the shortcomings of Earned Value related to the project cost and time performance. Literature study was conducted from the various sources related to the EV topic. The result shows that the main weakness of Earned Value method are: EV prediction method is assumed deterministic, linear, non-dynamic and does not accommodate uncertainty factors of time and cost of construction projects.   Keywords: construction  project, time and cost performance, earned value
Pengaruh Kesiapan Teknologi, Karakteristik Perusahaan dan Adopsi Inovasi Terhadap Keunggulan Kompetisi pada Perusahaan Konstruksi di Indonesia Sudiansyah, Novi; Wahyu Adi, Tri Joko
Jurnal Aplikasi Teknik Sipil Vol 22, No 3 (2024)
Publisher : Departemen Teknik Infrastruktur Sipil Institut Teknologi Sepuluh Nopember Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j2579-891X.v22i3.17618

Abstract

Saat ini, industri konstruksi Indonesia masih menunjukkan daya saing yang lemah dengan perusahaan konstruksi asing. Hal ini diduga disebabkan oleh rendahnya kreativitas dan inovasi dalam praktik konstruksi. Penelitian ini bertujuan untuk memodelkan hubungan antara karakteristik perusahaan, adopsi inovasi, dan kesiapan teknologi untuk mencapai keunggulan kompetitif. Variabel penelitian diperoleh melalui studi literatur mendalam dan kuesioner yang disebarkan kepada 106 perusahaan konstruksi besar yang berlokasi di Indonesia. Responden penelitian adalah staf teknis atau manajemen tingkat tinggi yang terlibat dalam penerapan inovasi konstruksi. Data empiris kemudian dianalisis dengan menggunakan Confirmatory Factor Analysis dengan alat bantu Structural Equation Model (SEM). Hasil penelitian menunjukkan adanya hubungan yang signifikan antara kesiapan teknologi, karakteristik perusahaan, dan keunggulan kompetitif yang dimediasi oleh adopsi inovasi
MANAJEMEN RISIKO SEBAGAI MEKANISME KEBERLANJUTAN INFRASTRUKTUR PUBLIK: PERAN BIM DAN TEKNOLOGI INDUSTRI 4.0 Bagus Sagita Gilang Perdana; Tri Joko Wahyu Adi
Menara: Jurnal Teknik Sipil Vol. 21 No. 2 (2026): Menara : Jurnal Teknik Sipil
Publisher : Teknik Sipil, Fakultas Teknik Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jmenara.v21i2.65741

Abstract

Transformasi digital melalui penerapan Building Information Modeling (BIM) dan teknologi Industri 4.0 semakin dipandang sebagai strategi penting untuk meningkatkan pengelolaan risiko dan kinerja keberlanjutan proyek konstruksi. Penelitian ini bertujuan menganalisis pengaruh pemanfaatan BIM dan adopsi teknologi Industri 4.0 terhadap kinerja keberlanjutan proyek dengan pengurangan risiko konstruksi sebagai variabel mediasi. Penelitian ini menggunakan pendekatan kuantitatif melalui survei terhadap 120 profesional yang terlibat dalam proyek infrastruktur publik yang dilaksanakan oleh kontraktor BUMN di Indonesia. Data dianalisis menggunakan Partial Least Squares–Structural Equation Modeling (PLS-SEM). Hasil menunjukkan bahwa BIM (β = 0,341; p = 0,006) dan teknologi Industri 4.0 (β = 0,512; p < 0,001) berpengaruh positif dan signifikan terhadap pengurangan risiko konstruksi (R² = 0,730). Pengurangan risiko juga berpengaruh kuat terhadap kinerja keberlanjutan proyek (β = 0,818; p < 0,001; R² = 0,626). Efek tidak langsung BIM dan teknologi Industri 4.0 terhadap keberlanjutan melalui pengurangan risiko terbukti lebih dominan dibandingkan efek langsungnya. Temuan ini menegaskan bahwa pengurangan risiko merupakan jalur utama yang menghubungkan transformasi digital dengan keberlanjutan proyek infrastruktur publik.
Barriers and Challenges To the Implementationof Green Building Development Ingresik Dinar Melayani; Tri Joko Wahyu Adi
Reslaj: Religion Education Social Laa Roiba Journal Vol. 7 No. 2 (2025): RESLAJ: Religion Education Social Laa Roiba Journal
Publisher : Intitut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/reslaj.v7i2.6928

Abstract

Sustainable development has become a key focus in addressing the challengesof climate change and environmental degradation. One crucial solution in achievingsustainable development is the implementation of green buildings. This study aimstoidentify and analyze the barriers and challenges encountered in the implementationof green buildings in both government and private projects. The findings of this researchare expected to be useful for local governments in formulating effective strategiestoincrease the number of green buildings in the city. In this research, the variablesof barriers and challenges are obtained through a literature review of international anddomestic journals that examine the obstacles and challenges in the implementationof green buildings. The study will employ several methods, including the RelativeImportance Index (RII), to identify the most influential barriers and challenges totheimplementation of green buildings. The respondents in this study are stakeholdersinvolved in the development of Gresik City, including government officials, consultants, and contractors. The results of this study are expected to identify the main barriersandchallenges in the implementation of green buildings in Gresik City. The results of thisresearch show that the 3 largest ranking barriers variables are the practice of illegal levies in obtaining permits, the limited number of BGH consultants, the opportunitytobe invited to government tenders needs to be increased. Meanwhile, the 3 largest ranking challenge variables are limited research on environmentally friendly buildingwork methods, lack of investment in environmentally friendly materials, limitededucational infrastructure for trained teachers.
Integrasi Total Quality Management (Tqm) dan Building Information Modelling (Bim) untuk Meningkatkan Pengelolaan Mutu Proyek Konstruksi Faradiba Dwi Hernita; Tri Joko Wahyu Adi
Jurnal Kajian dan Penelitian Umum Vol. 4 No. 3 (2026): Juni: Jurnal Kajian dan Penelitian Umum
Publisher : Institut Nalanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47861/jkpu-nalanda.v4i3.2352

Abstract

This study aims to develop an integration model of Total Quality Management (TQM) and Building Information Modeling (BIM) based on Lean Management and Industry 4.0 Technology to support the improvement of construction project quality management in the development of Indonesia’s New Capital City (Ibu Kota Nusantara—IKN). The study was conducted by identifying TQM principles, BIM dimensions, Industry 4.0 technologies, Last Planner System (LPS) elements, and construction project quality aspects, including defect reduction, rework minimization, waste registers, and performance quality. The research employed both qualitative and quantitative descriptive approaches through literature reviews, project observations, integration matrix development, questionnaire distribution to 12 expert respondents, Content Validity Ratio (CVR) analysis, and Focus Group Discussion (FGD). The results indicate that TQM–BIM integration has a positive influence on construction project quality management. The most dominant integrations were found between BIM 4D and Percent Plan Complete (PPC) Evaluation, BIM Workflow and Pull Planning, as well as data-driven decision-making through BIM 5D and constraint management. The resulting integration model supports collaborative planning, real-time data-based project monitoring, and continuous improvement in construction project quality management. Furthermore, the implementation of the model has significant potential to support digital construction in IKN projects, although challenges remain regarding the integration of digital quality systems, human resource readiness, and coordination among project stakeholders.
Co-Authors Bagus Sagita Gilang Perdana Dinar Melayani Fahirah F. Faradiba Dwi Hernita Nadjadji Anwar Sudiansyah, Novi Suly Yunwanti