cover
Contact Name
Eko Walujodjati
Contact Email
eko.walujodjati@itg.ac.id
Phone
+6282124588750
Journal Mail Official
konstruksi@itg.ac.id
Editorial Address
Jl. Mayor Syamsu No.1, Jayaraga, Kec. Tarogong Kidul, Kabupaten Garut, Jawa Barat 44151
Location
Kab. garut,
Jawa barat
INDONESIA
Jurnal Konstruksi
ISSN : 14123614     EISSN : 23027320     DOI : https://doi.org/10.33364/konstruksi
Core Subject : Engineering,
Jurnal Kosntruksi yang dapat menampung dan mempublikasikan hasil karya penelitian, karya tulis dan pengabdian masyarakat baik mahasiswa dan dosen-dosen intern maupun dari pihak luar. Jurnal Konstruksi memberikan informasi yang diperoleh dari laboratorium dan workshop penelitian maupun dari lapangan/ studi kasus di dunia nyata dengan cakupan (Scope of Journals) bidang meliputi struktur transportasi/ infrastruktur, air, geoteknik, manajemen konstruksi, dan lingkungan. Melalui jurnal konstruksi diharapkan dapat menampung semua inspirasi bidang teknik sipil sehingga didapatkan pemecahan masalah yang dihadapi dan mampu melahirkan inovasi baru dibidangnya.
Articles 417 Documents
Evaluasi Perilaku Tarik Pelat Baja Ringan melalui Pendekatan Eksperimental dan Simulasi Finite Element Method (FEM) Y Djoko setiyarto
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.2300

Abstract

Accurate strain measurement is a crucial aspect of material tensile testing because it directly affects the determination of mechanical properties such as the modulus of elasticity and yield stress. In laboratory practice, strain measurement often relies solely on displacement records from the Universal Testing Machine (UTM), although such measurements are potentially affected by grip slip and deformation of the clamping system. This study evaluates the tensile behavior of lightweight steel plates through an experimental approach focusing on the comparison of strain measurement accuracy using three methods: the UTM, strain gauges, and displacement transducers (LVDT). Tensile test specimens were taken from lipped channel profiles with thicknesses of 1.5 mm and 2 mm, and then tested in accordance with ASTM A370 standards. The test results show that the strain recorded by the UTM was significantly greater than the strain measured using strain gauges and transducers, particularly during the plastic phase, due to the accumulation of slip at the grips. The strain differences could reach more than 20 times at certain stress levels, potentially leading to misinterpretation of the material’s tensile behavior. Strain gauges provided accurate strain measurements during the elastic phase, while transducers were capable of recording strain up to near-fracture conditions. The findings of this study confirm that the use of additional instruments is essential to obtain representative stress–strain curves and to improve the reliability of tensile test results for lightweight steel plates in structural engineering applications.
Analisis Pengaruh Penambahan Geogrid pada Stabilitas Dinding Penahan Tanah GSRW (Geoforce Segmental Retaining Wall) Moch Wilman Abdillah; Athaya Zhafirah; Rudy Febrijanto
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.2315

Abstract

The construction of the Amphitheater at POLMAN Majalengka Campus 2 employed a Geoforce Segmental Retaining Wall (GSRW) structure on a slope area with unstable subsoil conditions dominated by clay shale, which is prone to weathering and reduced shear strength. Field investigations revealed cracks at the top of the slope during construction, indicating the need for a stability evaluation of the structure. This study aims to calculate and analyze the effect of geogrid reinforcement on the safety factor, deformation, and settlement of the GSRW structure through numerical simulations using Plaxis 2D. The simulations applied a Mohr-Coulomb soil model with geogrid installed at each concrete panel layer, while seismic loads were analyzed pseudostatically using the Mononobe–Okabe method with horizontal (kh) and vertical (kv) acceleration coefficients of 0.18g and 0.036g, respectively. The analysis results showed that GSRW without geogrid had a safety factor of 1.30, which is the minimum stability threshold according to SNI 8460:2017. With geogrid reinforcement, the safety factor increased to 1.82. Maximum deformation decreased from 0.25 m to 0.14 m (a 41% reduction), and settlement decreased from 5.2 cm in 38 days to 3 cm in 64 days. This study demonstrates that geogrid reinforcement significantly improves the performance of GSRW, making it highly recommended for weak soil conditions such as clay shale.
Evaluasi K3 pada Proyek Gedung BNN Bandung dengan Metode HIRARC Ganjar Jojon Johari; Reinatha Aprilia
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.2573

Abstract

The construction project of the BNN Bandung City Office Building involves high-risk activities such as superstructure works, mechanical–electrical–plumbing (MEP) installations, and wastewater treatment plant (IPAL) installations. These activities have the potential to cause occupational accidents if proper control measures are not implemented. This study aims to identify Occupational Health and Safety (OHS/K3) hazards based on Job Safety Analysis (JSA) documents and to analyze risk levels using the Hazard Identification, Risk Assessment, and Risk Control (HIRARC) method. The research method utilizes secondary data in the form of project JSA documents, which are analyzed through the stages of hazard identification, risk assessment, and control recommendations. Risk levels are determined by multiplying likelihood and severity values and are then classified into low, medium, and high categories in accordance with HIRARC standards. The results show that the identified hazards include falls from height, being struck by materials, slips, electrical hazards, chemical exposure, and confined space risks. Most risks fall into the medium to high categories. In superstructure works, high risk mainly arises from working at height. In MEP works, dominant risks are related to electrical hazards. Meanwhile, in IPAL works, high risk is identified in confined spaces with potential gas exposure. In conclusion, the majority of hazards in this project are categorized as medium to high risk, indicating that risk control efforts should be focused on superstructure, MEP, and IPAL activities in accordance with applicable OHS regulations.
Dampak Beban Kendaraan Terhadap Umur Rencana Jalan dengan Metode Bina Marga 2017 Angelina Mita Lorenza Sitorus; Ibnu Sholichin; Fithri Estikhamah
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.2660

Abstract

The quality of road infrastructure is highly dependent on appropriate pavement design. This study analyzes the impact of vehicle loads on the pavement design life of the Driyorejo–Legundi road section. Based on the 2017 Bina Marga method, traffic data were collected over three days to estimate the road service life. It is projected that by 2025, the Average Daily Traffic will reach 23,213 vehicles per day. The calculation results indicate that due to excessive vehicle loads, the remaining service life of the road decreases by 3.89%, from 10 years to approximately 7.008 years. These findings confirm that overloading significantly reduces pavement service life, highlighting the need for serious attention during the planning and maintenance phases of road infrastructure. The study is expected to serve as a strong basis for sustainable-oriented road planning and to provide meaningful support for policies on controlling vehicle overloading in Indonesia.
Pengaruh Perubahan Tata Guna Lahan Terhadap Debit Banjir Menggnakan Model HEC-HMS Sulwan Permana; Adi Muhammad Aripin
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.2703

Abstract

Perubahan penggunaan lahan merupakan salah satu faktor dominan yang memengaruhi karakteristik hidrologi suatu daerah aliran sungai (DAS). Penelitian ini bertujuan mengevaluasi pengaruh perubahan penggunaan lahan terhadap debit banjir. Penelitian ini menggunakan pemodelan hidrologi dengan HEC-HMS berbasis metode Soil Conservation Service Curve Number (SCS-CN). Simulasi dilakukan untuk kondisi penggunaan lahan tahun 2014, 2019, dan 2023 dengan curah hujan rancangan berdurasi 6 jam pada kala ulang 25, 50, dan 100 tahun. Hasil simulasi menunjukkan bahwa nilai CN rata-rata mengalami peningkatan dari 82,05 (2014) menjadi 82,33 (2023), seiring dengan peningkatan luas lahan kedap air dari 4,3% menjadi 6,4%. Konsekuensinya, terjadi penurunan nilai retensi (S) dan initial abstraction (Ia), serta peningkatan debit puncak. Debit maksimum pada periode ulang 100 tahun meningkat dari 218,4 m³/s menjadi 221,6 m³/s. Hasil penelitian ini memberikan dasar teknis dalam mitigasi banjir berbasis tata rang. Hal ini menunjukkan bahwa alih fungsi lahan memberikan kontribusi signifikan terhadap peningkatan potensi banjir. Pengendalian konversi lahan serta penerapan konservasi tanah dan air untuk mengurangi risiko banjir.
Evaluasi Dampak Change Order terhadap Biaya dan Waktu menggunakan Metode EVM Ahmad Nurjaman; Ganjar Jojon Johari
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.2737

Abstract

Design changes (change orders) are a common challenge in construction projects because they can affect cost, schedule, and quality. This study aims to identify the types of design changes, their causal factors, and their impacts on cost and schedule performance using the Earned Value Management (EVM) approach. A case study was conducted on the renovation project of the BTN Bank KCP Sepaku Building, which experienced 14 Site Instructions (SI) and 1 Contract Change Order (CCO). The results show that design changes occurred in architectural, structural, and MEP works, leading to additional work volumes, rework, and adjustments to work sequencing. The main contributing factors include discrepancies between existing site conditions and design drawings, additional requirements from the owner, delays in design approvals, and adjustments to technical regulations. EVM analysis indicates that the project experienced deviations in the second week, with an SPI of 0.78 and a CPI of 0.95, indicating schedule delays and cost inefficiency. However, from weeks four to seven, performance gradually improved, and the final EAC was recorded at IDR 3,662,040,000, equal to the BAC, meaning the project was completed on time without cost overruns. The study recommends thorough design verification at the early stages, cross-party coordination, and EVM-based control to minimize deviation risks in similar projects. The practical implication of this research is to provide guidance for contractors and project managers in implementing cost and schedule control strategies when facing design changes.
Evaluasi Kapasitas Tampungan Saluran Drainase Menggunakan Storm Water Management Model Sulwan Permana; Azqia Fhairiza Rusmana
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.2760

Abstract

Population growth and land use change in Sukagalih Village, Garut Regency, have increased surface runoff volume, triggering flooding at several points in the drainage system. This study aims to evaluate the drainage system's storage capacity using Storm Water Management Model (SWMM) modeling and provide technical recommendations for improving its performance. The method used is quantitative descriptive with primary data in the form of survey results on the physical condition and dimensions of the channels, as well as secondary data including rainfall, topography, and land use. Hydrological analysis was carried out through the calculation of planned rainfall using a normal distribution, rainfall intensity using the Mononobe method, and rainfall distribution using the Alternating Block Method. The SWMM simulation results showed that six junctions (JN27, JN29, JN30, JN32, JN36, and JN51) experienced overflow during peak rainfall due to sedimentation, wild vegetation, and channel dimension limitations. The technical evaluation recommended routine cleaning, sediment removal, and channel dimension improvement at vulnerable points. The application of these recommendations in a re-simulation showed an improvement in flow capacity and a reduction in overflow, thereby increasing the effectiveness of the drainage system in controlling flooding in Sukagalih Village. The results of this study can be used as a reference in planning a sustainable urban drainage system.
Karakteristik Marshall Campuran AC-WC Dengan Modifikasi Serbuk Karet Ban dan Filler Bata Merah Muhammad Ramdhan; Ida Farida; Subhan Mulyana
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.2768

Abstract

Road pavement damage often occurs faster than its planned lifespan due to the selection of inappropriate asphalt and aggregate content. The use of tire rubber powder waste and red brick powder filler is offered as an alternative modification material to improve the performance of asphalt mixtures. The study aims to evaluate the effect of varying tire rubber powder with 5% red brick powder filler on the Marshall characteristics of AC-WC mixtures. The experiments were conducted in the laboratory with reference to the 2018 Bina Marga Specifications Division 6 Asphalt Pavement. The variations in rubber powder content used were 4%, 4.5%, 5.5%, and 6% of the asphalt weight, with an optimum asphalt content of 6.3%. The results showed that the optimum rubber powder content was 4%, with all Marshall parameters meeting the 2018 Bina Marga specifications, namely stability of 1067 kg, flow of 2.47 mm, VIM of 3.28%, VMA of 15.92%, VFB of 79.94%, and MQ of 432.69 kg/mm. At levels of 4.5–6%, some parameters still met the requirements, but the VIM value exceeded the maximum limit, potentially reducing structural strength. These findings indicate the potential for practical application in extending the service life of road pavements and support the principle of sustainability through the use of industrial waste as an asphalt mixture material.
Evaluasi Kinerja Lalu Lintas Akibat Pembangunan Landmark Simpang Tak Bersinyal Menggunakan PKJI 2023 dan PTV Vissim Hari Kurniawan; Ida Farida
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.2783

Abstract

The construction of a landmark at an unsignalized intersection can affect traffic capacity and performance. This study aims to evaluate the impact of the construction of the AS-202 Bravo Aircraft Monument on traffic performance at the Kadungora Three-Leg Intersection, Garut Regency, and to examine handling scenarios through traffic management. The analysis was conducted under three conditions: before the construction of the monument, after the construction of the monument, and after the implementation of opening the divider on the C-leg lane, which previously restricted the new road lane toward Garut. Data were obtained through vehicle flow surveys conducted on weekdays and weekends during peak hours, as well as secondary data from the Transportation Agency. The evaluation refers to PKJI 2023 and includes traffic flow simulation using PTV Vissim Student Version software. The results show that after the monument construction, intersection capacity decreased from 3,086.24 pcu/hour to 3,030 pcu/hour, the degree of saturation increased, and average delay rose, causing the level of service to decline from category C to D. Vissim simulations also indicate increased delay and queue length. The implementation of opening the divider on the C-leg was able to reduce delays and shorten queue lengths. These findings confirm that simple traffic engineering–based interventions can improve intersection performance without major geometric changes. The study recommends maximum intervention in the form of traffic management based on simple engineering measures that can be replicated at similar unsignalized intersections.
Evaluasi Kinerja Sistem Irigasi Menggunakan Metode F.J. Mock Sulwan Permana; Febri Gumilar
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.2799

Abstract

Cadas Gantung Weir is a water resources infrastructure that plays an important role in supporting the agricultural irrigation system, particularly in Cibuntu Hamlet, Sindangsari Village, Cigedug District. Water from this weir is used to irrigate agricultural land in the Ciledug area covering an irrigation area of 321.95 ha. The irrigation system is supported by a secondary channel with a length of 950.30 meters. This study aims to evaluate the performance of the Cadas Gantung Weir in supporting sustainable water resource management, food security, and sustainable irrigation systems, which are key components in improving food security. The research method includes analysis of average rainfall data and evapotranspiration (ETo) using the Penman–Monteith method to assess the suitability of water supply to agricultural land requirements. Discharge modeling is carried out using the F.J. Mock method. In January 2015, the maximum discharge was recorded at 44.62 m3/s due to high rainfall and upstream flood inflow. Discharge management is conducted through dynamic regulation of gate openings to prevent overflow and maintain the stability of irrigation water distribution. The results indicate that the Cadas Gantung Weir plays a significant role in supporting the irrigation system in Sindangsari Village through a stable and sufficient water supply.