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Oktavianus Chayadi
Universitas Mpu Tantular
Economics, Econometrics & Finance Law, Crime, Criminology & Criminal Justice Public Health Social Sciences Other

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PERTIMBANGAN ETIKA DALAM PENGGUNAAN TEKNOLOGI HIJAU PADA KONSTRUKSI Oktavianus Chayadi; Edison Hatoguan Manurung; Abdul Mubarok
SINERGI : Jurnal Riset Ilmiah Vol. 3 No. 7 (2026): SINERGI : Jurnal Riset Ilmiah, Juli 2026
Publisher : Lembaga Pendidikan dan Penelitian Manggala Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62335/sinergi.v3i7.2782

Abstract

The construction industry contributes approximately 37–39% of global carbon dioxide emissions and consumes around 36% of total final energy, making it a priority sector in the sustainable development agenda. Green technology in construction offers solutions through the use of low-carbon materials, energy efficiency, and green building certification. However, the adoption of green technology cannot be separated from ethical considerations involving the professional responsibility of engineers, social justice, certification transparency, and respect for local communities. This study employs a conceptual literature-based approach to identify and analyze relevant engineering ethics dimensions in the implementation of green technology in Indonesia's construction sector. The findings indicate that engineering ethics must serve as the primary foundation for every green technology adoption decision, rather than merely fulfilling formal regulatory requirements. This study recommends integrating an engineering ethics framework into Indonesian green construction practice standards.
KAJIAN SISTEMATIS PERILAKU NONLINIER SAMBUNGAN BAUT PADA STRUKTUR BAJA DAN IMPLIKASINYA TERHADAP PENERAPAN SNI 1729:2020 Oktavianus Chayadi; Edison Hatoguan Manurung; Abdul Mubarok
SINERGI : Jurnal Riset Ilmiah Vol. 3 No. 7 (2026): SINERGI : Jurnal Riset Ilmiah, Juli 2026
Publisher : Lembaga Pendidikan dan Penelitian Manggala Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62335/sinergi.v3i7.2783

Abstract

In the studies reviewed, bolted connections in steel structures generally exhibit semi-rigid behavior with a nonlinear moment-rotation response, where the majority of studies report behavior lying between the perfect pin and fully rigid conditions. The authors have not identified a review that simultaneously synthesizes rotational stiffness, bolt slip effects, and implications for SNI 1729:2020 within a single integrated framework; similar reviews in the Indonesian standards context remain scarce based on searches across Scopus, ScienceDirect, and Google Scholar. This study presents a systematic literature review following the PRISMA 2020 protocol (Page et al., 2021), examining 13 selected studies from 75 identified articles (search conducted 15–20 June 2026). The 2017–2025 timeframe was selected to capture recent developments in nonlinear analysis and FEM of bolted connections. Quality assessment using an internal scoring instrument adapted from JBI principles yielded scores ranging from 2 to 5 out of 5, reflecting realistic methodological quality variation. Qualitative synthesis reveals a consistent tendency that increasing end-plate thickness produces a significant increase in initial rotational stiffness, accompanied by a moderate-to-significant reduction in rotation capacity. Neglecting bolt slip was found to tend toward significant displacement prediction errors near ultimate capacity. Comparison of SNI 1729:2020 and Eurocode 3 identifies three aspects not yet explicitly accommodated in SNI 1729:2020, potentially addressable through Eurocode 3 component method adoption with Indonesian condition validation.
OPTIMALISASI PENGELOLAAN SUMBER DAYA AIR DI KABUPATEN MUARA ENIM UNTUK MENDUKUNG PENYEDIAAN AIR BERSIH YANG EFISIEN Oktavianus Chayadi; Edison Hatoguan Manurung
SINERGI : Jurnal Riset Ilmiah Vol. 3 No. 1 (2026): SINERGI : Jurnal Riset Ilmiah, January 2026
Publisher : Lembaga Pendidikan dan Penelitian Manggala Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62335/sinergi.v3i1.2272

Abstract

This study analyzes the availability of clean water in Muara Enim Regency by focusing on the balance between water resource potential and community water demand up to the year 2035. The analysis employs a water balance method using a descriptive qualitative and quantitative approach, based on the processing and evaluation of secondary data from multiple sources, including population data, climatological data, and information on the existing water supply system. The data were obtained from the Central Bureau of Statistics (BPS), the Meteorology, Climatology, and Geophysics Agency (BMKG), as well as the Water Supply System Master Plan (RISPAM) of Muara Enim Regency as a technical reference. The results of the analysis indicate that the Enim River has an average discharge of approximately 56 m³/s, equivalent to 4.8 billion liters per day, while domestic water demand in 2025 is estimated at 11.86 million liters per day and is projected to increase to 13.79 million liters per day by 2035. The water balance analysis conducted in this study reveals a surplus of approximately 4.82 billion liters per day, indicating that water availability is quantitatively sufficient. Nevertheless, the analysis also shows that the capacity of water treatment and distribution systems remains suboptimal, as reflected by limited treatment capacity and relatively high water losses. Based on the calculations and evaluations carried out in this study, it is recommended to increase water treatment capacity, develop balancing storage facilities, and rehabilitate the distribution network in order to reduce water losses and improve clean water service coverage by 2035.
EVALUASI PERILAKU SAMBUNGAN BAJA PADA STRUKTUR RANGKA MOMEN TAHAN GEMPA: ANALISIS STUDI LITERATUR DAN STATISTIK TERHADAP SAMBUNGAN TIPE EXTENDED END-PLATE Oktavianus Chayadi; Edison Hatoguan Manurung; Alip Prajoko
SINERGI : Jurnal Riset Ilmiah Vol. 3 No. 1 (2026): SINERGI : Jurnal Riset Ilmiah, January 2026
Publisher : Lembaga Pendidikan dan Penelitian Manggala Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62335/sinergi.v3i1.2273

Abstract

Beam–column connections are critical components in seismic-resistant steel moment frame systems. This study aims to evaluate the behavior of Extended End-Plate (EEP) connections through a systematic literature review and statistical analysis of secondary data. The research method adopts a systematic literature review approach with quantitative data analysis derived from five main research journals published between 1997 and 2021. The data were extracted and analyzed using SPSS 25 software through descriptive statistical analysis, Pearson correlation, multiple linear regression, and one-sample t-test. The results indicate that: (1) there is a very strong positive correlation between end-plate thickness and connection moment capacity (r = 0.892; p < 0.01); (2) 67% of connection configurations with end-plate thickness ≥ 15 mm satisfy the minimum inelastic rotation criterion of 0.03 rad based on the FEMA-350 standard; and (3) end-plate thickness contributes dominantly (71.4%) to the increase in moment capacity compared to the number of bolts (28.6%). The recommended optimal configuration is an EEP connection with a 15 mm end-plate thickness and six bolts, producing a moment capacity of 56.8 kNm and an inelastic rotation of 0.042 rad. This study provides practical implications as a basis for recommending EEP connection design for steel buildings in seismic regions of Indonesia
Co-Authors Abdul Mubarok Alip Prajoko Manurung, Edison Hatoguan