Article Per Year (5 Year)
p-Index From 2021 - 2026
1.633
P-Index
This Author published in this journals
All Journal Jurnal Momentum BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil IJISTECH (International Journal Of Information System & Technology) Ensiklopedia of Journal IJISTECH Jurnal Ilmiah Telsinas Elektro, Sipil dan Teknik Informasi International Journal of Applied Mathematics, Sciences, and Technology for National Defense Journal of Health Management, Administration and Public Health Policies
Nugroho, Fajar
Civil Engineering Department; Andalas University; Limau Manis District Pauh, Padang City, West Sumatera, 25163, Indonesia
Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Transportation

Published : 15 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 15 Documents
Search

 1   2 
PENGARUH PENAMBAHAN CAMPURAN SERBUK KAYU TERHADAP KUAT TEKAN BETON Fajar Nugroho; Silta Yulan Nifen
Ensiklopedia of Journal Vol 6, No 1 (2023): Vol. 6 No. 1 Edisi 1 Oktober 2023
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v5i4.1738

Abstract

Concrete is the main material for construction that is widely used. Many studies have been carried out to improve the properties of concrete, especially in terms of strength, durability and workability. Attempts to increase the strength of concrete include adding sawdust to the concrete mixture. This study aims to determine the compressive strength of concrete using sawdust as a fine aggregate additive and to determine the optimum weight of a mixture of sawdust as a fine aggregate additive. Variations in the mixture of sawdust used were 5 gr, 7 gr, 10 gr and 15 gr. The amount of cement used was 381,82 kg/m³ with a Fas of 0,55 and a concrete weight of 2.395 kg/m³. Concrete testing was carried out at the age of 28 days with a total of 15 specimens. Treatment is done by immersion. From the results of testing the compressive strength of concrete with design quality fc' 25 MPa with a mixture of sawdust 5 gr, 7 gr, 10 gr and 15 gr, the results obtained were 26,23 MPa, 26,42 MPa, 26,99 MPa and 27,93 MPa. In this study it can be seen that concrete using sawdust as a fine aggregate added material can increase the compressive strength value of concrete provided that the sawdust used is the finest grain that passes sieve no.100.
THE EVALUATION OF IMPLEMENTATION OF THE USE OF PERSONAL PROTECTIVE EQUIPMENT AND CONSTRUCTION K3 SIGNS Maizul Isror; Fajar Nugroho; Hamdeni Medriosa
Journal of Health Management, Administration and Public Health Policies Vol. 2 No. 1 (2024): Journal of Health Management, Administration and Public Health Policies
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, Universitas Muhammadiyah Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52060/hmaps.v2i1.1963

Abstract

This research is motivated by the low urgency of occupational health and safety (K3) in construction projects in Indonesia, despite the government having regulated its implementation in the law. This study aims to determine the implementation of Personal Protective Equipment (PPE) in the Construction Project of the Information Center and Library of Padang State University conducted by the company. This research is qualitative in nature. Based on the research results, it is known that, referring to Minister of Public Works and Public Housing Regulation Number 10 of 2021 Regarding the Construction Safety Management System (SMKK), it is concluded that safety helmets, eye protectors, face shields, diving masks, gloves, safety shoes, full-body harnesses, electrical gloves, and respiratory protectors in accordance with Indonesian National Standards (SNI) are available. However, there are no ear protectors, and it is also known that the safety vests and respiratory protective masks do not comply with SNI. Furthermore, it is known that the documents provided by the company are the Construction Safety Plan (RKK), Construction Work Quality Plan (RMPK), Quality Program, Environmental Management and Monitoring Work Plan (RKPPL), and Work Traffic Management Plan (RMLLP). However, the conceptual design document for SMKK is not available. Based on the research results, the researchers suggest that the company should provide complete Personal Protective Equipment (PPE). The company should also install signs at every hazardous location, with signs that are easily visible, clear, and understandable. The company should have complete documents in accordance with the documents required by construction service providers as per Minister of Public Works and Public Housing Regulation Number 10 of 2021 Regarding the Construction Safety Management System (SMKK), and the workers should correctly and consistently use the provided Personal Protective Equipment (PPE) and follow the safety procedures established for each job.
Seismic Performance Evaluation of Reinforced Concrete Building in Palu City Fajar Nugroho; Jafril Tanjung; Maidiawati Maidiawati; Ruddy Kurniawan
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 12 No 2 (2024): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (July 2024)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v12i2.9570

Abstract

The earthquake accompanied by a tsunami that occurred in Palu City in 2018 resulted in damage, especially reinforced concrete buildings, one of which was the FISIP Dean Building, Tadulako University. This study aims to evaluate the seismic performance of the building using SeismoStruct software. This software is able to predict the behaviour of large displacements of space frames under static or dynamic loading by considering geometric nonlinearity and material inelasticity. Building modelling is made based on Detail Engineering Design drawings. The results of the analysis in the form of a capacity curve show that the building's performance is at the life safety level, which means that structural components are damaged so that the building's strength is reduced. There are two types of building collapse mechanisms that occur, namely yielding in the reinforcement (yield) and collapse in the concrete cover (crush-unconfined). Collapse occurred in the column where it should have occurred in the beam.
Liquefaction potential and post-seismic volumetric strain of coastal deposits in Southern West Sumatera: A CPT and finite element approach for coastal defense infrastructure resilience Okri Asfino Putra; Hamdeni Medriosa; Fajar Nugroho
International Journal of Applied Mathematics, Sciences, and Technology for National Defense Vol. 4 No. 2 (2026): International Journal of Applied Mathematics, Sciences, and Technology for Nati
Publisher : FoundAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/app.sci.def.v4i2.1274

Abstract

Background: Previous liquefaction studies along the West Sumatera coast have mainly focused on the Padang urban area and have relied on triggering analysis using CSR–CRR. However, post-liquefaction ground deformation, which can affect coastal defense infrastructure, has received limited attention. This study addresses this gap by combining CPT-based liquefaction analysis with finite element modelling to estimate post-liquefaction ground settlement in the southern coastal segment. The results provide a quantitative basis for assessing liquefaction-induced deformation and supporting coastal infrastructure design in this earthquake-prone area. Aims: Liquefaction is a major geotechnical hazard in coastal areas exposed to strong earthquakes, especially where loose and saturated sandy soils are present. The southern coast of West Sumatera is vulnerable to earthquake-induced liquefaction due to its proximity to the active Sunda megathrust. This study evaluates the liquefaction potential of coastal soils using Cone Penetration Test (CPT)-based analysis under different seismic loading conditions. Three CPT points were analyzed to characterize the subsurface soil and assess its liquefaction susceptibility. Method: The liquefaction assessment compared the Cyclic Stress Ratio (CSR) from earthquake loading with the Cyclic Resistance Ratio (CRR) from CPT data. Peak ground accelerations of 0.15 g, 0.28 g, and 0.60 g were used to represent low, moderate, and strong earthquakes. The factor of safety (SF) was then calculated to identify soil layers susceptible to liquefaction. In addition, PLAXIS 2D was used to simulate post-liquefaction behavior using the Mohr–Coulomb model and CPT-based soil parameters, with the groundwater table set at 1.5 m depth. The analysis focused on the relationship between liquefaction resistance and post-liquefaction volumetric strain. Result: The results show that liquefaction susceptibility increases with seismic intensity. At 0.15 g, most soil layers have SF values above 1.0 (1.2–3.8), indicating stable conditions. At 0.28 g, some layers at depths of 6–10 m become marginally unstable. At 0.60 g, most layers between 3 and 15 m have SF values below 1.0, indicating high liquefaction potential. The finite element results also show an inverse relationship between safety factors and volumetric strain ( ), indicating that lower liquefaction resistance leads to greater post-liquefaction deformation. Conclusion: Overall, this study demonstrates that the investigated coastal deposits are highly vulnerable to strong earthquake loading and emphasizes the importance of liquefaction mitigation measures for infrastructure development in earthquake-prone coastal regions.
Occupational Health and Safety Risk Management in Toll Road Construction Misbah Misbah; Leli Honesti; Fajar Nugroho; Meli Muchlian; Nur Hamiza Adenan; Yessy Yusnita
Jurnal Ilmiah Telsinas Vol 9 No 2 (2026)
Publisher : Universitas Pendidikan Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38043/telsinas.v9i2.7883

Abstract

Construction projects carry substantial risk of work accidents. This study aims to (1) identify hazards in project activities, (2) assess and rank the associated risks, and (3) determine appropriate risk controls, using Hazard Identification, Risk Assessment, and Determining Control (HIRADC) combined with Job Safety Analysis (JSA), with Toll Road X as the case study. Of the hazards identified, none were classified as large risk; 10 were classified as medium risk and 12 as small risk. The six highest-risk findings, all medium risk, were: tripping, slipping, and falling during measurement/survey; dust exposure causing eye irritation during soil filling; slipping/falling from height during excavation; being struck by iron/steel bars; cuts from using a Bar Bender; and stepping on debris or metal during spreading. These risks may result in lost working days, permanent or partial disability, moderate environmental damage, material losses, and medical costs. Recommended risk controls include occupational health and safety (OHS) training, safety audits, use of personal protective equipment (PPE), implementation of JSA, and adoption of appropriate construction methods to reduce work accident risk.
Co-Authors Anisya Anisya dyla midya octavia Hamdeni Medriosa Hamdeni Medriosa Jafril Tanjung, Jafril Leli Honesti Maidiawati Maidiawati Maizul Isror Meli Muchlian Misbah Misbah Nur Hamiza Adenan Putra, Okri Asfino Resti Maizetri Ruddy Kurniawan Silta Yulan Nifen Yessy Yusnita