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Eko Walujodjati
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INDONESIA
Jurnal Konstruksi
Published by Institut Teknologi Garut
ISSN : 14123614     EISSN : 23027320     DOI : https://doi.org/10.33364/konstruksi
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
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.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 301 Documents
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Kerangka Kerja Hibryd LCSA–SD: Studi Pendahuluan Pada Industri Manufaktur Ghaida Fatcha Mubiena
Jurnal Konstruksi Vol 23 No 1 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-1.2810

Abstract

The manufacturing industry faces persistent sustainability challenges across environmental, economic, and social dimensions. Life Cycle Sustainability Assessment (LCSA) provides a structured framework for assessing these impacts, but is limited in capturing long-term feedback and dynamics. Meanwhile, System Dynamics (SD) is capable of modeling complex interactions and simulating future scenarios. However, the integration of SD with LCSA remains scarce. This article proposes a hybrid conceptual framework that combines LCSA and SD for sustainability assessment in the manufacturing industry. This framework is based on a literature review and strengthened by an initial conceptual analysis. This approach is expected to produce a more holistic analysis of sustainability trade-offs and serve as a foundation for empirical research, policy evaluation, and strategic decision-making toward more sustainable manufacturing practices.
Analisis Siphon Cimanuk Daerah Irigasi Leuwigoong Kabupaten Garut Sulwan Permana; Muthi’ah Hudaedi
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.1410

Abstract

The Cimanuk Siphon is one of the cross-drainage structures built to convey discharge from an irrigation channel whose path is interrupted by a long-span valley or a river. To date, the Cimanuk Siphon has not yet been operated because its construction has not been completed. The success of an irrigation system can be assessed through the performance of its channels and structures in operation. Therefore, an analysis of irrigation system management and infrastructure is required to optimize water availability and the performance of irrigation channels. This study aims to determine the adequacy of water availability in the upper reaches of the Cimanuk River for distribution to agricultural land, as well as to determine the discharge flowing through the Cimanuk Siphon based on hydraulic calculations, ensuring optimal and efficient water flow. The study was conducted in Cipicung Village, Banyuresmi District, Garut Regency. The Copong Weir, which is a vertical movable weir, functions to irrigate the Leuwigoong Irrigation Area covering 5,313 ha, with a maximum dependable river discharge of 24.47 m³/s, calculated using the NRECA method. The highest evapotranspiration value was recorded in September, reaching 4.21 mm/day, based on the Penman–Monteith method. The maximum net water requirement for rice fields was 1.79 L/s, indicating that water availability from the upper Cimanuk River can meet the irrigation needs of the Leuwigoong area. The maximum discharge flowing through the Cimanuk Siphon was 5,268.34 L/s. The flow velocity at the inlet of the siphon was 0.66 m/s with a total inflow discharge of 5.27 m³/s, while at the outlet, the velocity reached 1.66 m/s with an outflow discharge of 3.52 m³/s. The total energy loss in the siphon was calculated to be 0.39 m. These findings are expected to serve as a basis for evaluating and optimizing the performance of the Cimanuk–Leuwigoong irrigation system to support sustainable water distribution for agricultural purposes.
Analisa Ketersediaan Air pada Embung di Desa Hegarmanah Kabupaten Cianjur Azka Mutsla Fauzan; Sulwan Permana
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.1425

Abstract

Cianjur Regency has hydrological potential in the form of rivers and beaches. However, there is still a problem of water shortage. One of the areas experiencing this problem is the Karangtengah Subdistrict area in Hegarmanah Village. When the dry season arrives, the available water is not able to meet the needs of the community. Hegarmanah Village itself has a water source from the river and actually already has a clean water network. However, the clean water network is not functioning due to pumping and water availability issues. To overcome the availability of water in the area, it is necessary to build a facility, namely embung. Embung Hegarmanah is an embung built in Cianjur Regency, precisely in Hegarmanah Village. The research conducted this time, calculating the amount of water availability and needs to meet the irrigation needs of Hegarmanah embung. The method used in this research is quantitative method. In finding the amount of water availability and needs, it is necessary to calculate the incoming discharge and outgoing discharge at Embung Hegarmanah. The results of this study found that there was a water shortage in August of 104.3 l / s, with a land area of 32.52 Ha. Water shortages occur because in August the rainfall is low and farmers are processing crops for the planting period.
Perencanaan Distribusi Air di Desa Ciela Kecamatan Bayongbong Rian Hidayatullah; Sulwan Permana
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.1431

Abstract

Water use is one of the most vital aspects of human life, essential not only for household needs but also for public, economic, and social infrastructure. One such area is Ciela Village, located in Bayongbong District, which is currently facing problems of uneven water distribution. This study aims to design a water distribution network system using EPANET 2.0, analyze population growth data for the next ten years by comparing two projection methods—arithmetic and geometric—and calculate water demand from both domestic and non-domestic sectors based on the Planning Criteria of the Directorate General of Human Settlements, Ministry of Public Works and Housing. Data collection in this study used a descriptive qualitative method, which included population data, topographic maps, and administrative boundaries. Water discharge was measured using a simple method involving a stopwatch, ruler, and a calibrated container with a known volume. The results show that the projected population of Ciela Village in the next ten years will reach 7,091 people. The Cikahuripan spring, which serves as the main water source for the plan, is capable of meeting community needs until 2033, as evidenced by a measured discharge of 6.4 liters/second, while the required discharge for the next ten years is 5.327 liters/second. The proposed distribution network design uses HDPE pipes with a 6-inch diameter, and the selected pump type is a Vertical Multistage Centrifugal Pump CR 10-14, chosen based on the pump head calculation results from EPANET 2.0. The main storage reservoir requires a capacity of 552.268 m3, while the service reservoir requires a capacity of 51.421 m3. Overall, this study demonstrates that the Cikahuripan spring can sustainably support the projected water demand for the next decade and provides a technically sound plan for improving the water distribution system in Ciela Village.
Pemodelan Banjir Di Cimacan Kecamatan Tarogong Kidul Kabupaten Garut Sulwan Permana; Almiansyah Nurdin
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.1485

Abstract

Cianjur Regency has hydrological potential in the form of rivers and beaches. However, there is still a problem of water shortage. One of the areas experiencing this problem is the Karangtengah Subdistrict area in Hegarmanah Village. When the dry season arrives, the available water is not able to meet the needs of the community. Hegarmanah Village itself has a water source from the river and actually already has a clean water network. However, the clean water network is not functioning due to pumping and water availability issues. To overcome the availability of water in the area, it is necessary to build a facility, namely embung. Embung Hegarmanah is an embung built in Cianjur Regency, precisely in Hegarmanah Village. The research conducted this time, calculating the amount of water availability and needs to meet the irrigation needs of Hegarmanah embung. The method used in this research is quantitative method. In finding the amount of water availability and needs, it is necessary to calculate the incoming discharge and outgoing discharge at Embung Hegarmanah. The results of this study found that there was a water shortage in August of 104.3 l / s, with a land area of 32.52 Ha. Water shortages occur because in August the rainfall is low and farmers are processing crops for the planting period.
Perencanaan Keseimbangan Air pada Embung Bratayudha Siti Yuni Yuningsih; Sulwan Permana
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.1521

Abstract

Water balance in the planning of Embung Bratayudha is one of the efforts to control flooding when runoff or high water discharge in the rainy season and to meet the needs of the community for the availability of raw water for irrigation. Based on this, research is needed to analyze the water balance planning at Bratayudha Embung, so that the needs and availability of water in the embung will be known. The method used in this research is a quantitative approach by analyzing primary data obtained through field surveys and secondary data obtained from Kepakan Station Post and the Garut Regency Public Works and Spatial Planning Office.The results of the NRECA analysis conducted can be known water availability discharge of 0.3014 m³/s where this discharge is obtained from the mainstay discharge with a probability of 80%, and the water demand discharge of 0.28 m³/s. From the analysis of the K factor that compares the discharge of availability and needs, the amount of 1.048 m³/s is obtained, where if the value of K ≥ 1 then the availability of water can be fulfilled, so the water balance of the reservoir is balanced.
Pengaruh Penambahan Serat Sabut Kelapa Pada Kuat Tekan dan Kuat Tarik Belah Beton Self Compacting Concrete Sulwan Permana; Yusri Fisabili Shaffan
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.1535

Abstract

Previous researchers have tried to find alternative concrete mixtures that are economical and environmentally friendly. One of the alternative additives developed is coconut fiber waste. The purpose of adding coconut fiber is to determine its effect on testing the compressive strength and split tensile strength of SCC (Self Compacting Concrete) concrete with a mixture percentage of 6%, 8%, and 10%. As for the addition of chemical substances, superplasticizer admixture aims to facilitate SCC concrete in achieving a qualified slump flow value. Research method. The research method applied is experimental compressive strength and split tensile strength of concrete with cylindrical shape with a mixture of added materials. The results of compressive strength testing obtained a normal concrete value of 16.30 MPa, then a mixture of 6% coconut fiber with a value of 17.26 MPa increased the normal concrete value by 5.88%, 8% coconut fiber with a value of 15 MPa decreased by 7.98%, and 10% coconut fiber with a value of 6.61 MPa decreased by 59.51%. For the tensile strength test results, obtained normal concrete worth 6.29 MPa then 6% coconut fiber mixture with a value of 7.10 MPa increased against the normal concrete value by 12.88%, 8% coconut fiber mixture concrete with a value of 6.60 MPa increased by 4.93%, and 10% coconut fiber mixture concrete with a value of 3.33 MPa decreased by 47.54%.
Pemodelan Debit Banjir Sungai Cimoyan Kabupaten Serang - Banten Sulwan Permana; Abdal Azziz
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.1578

Abstract

Flooding is defined as the overflow of water in large quantities. It is caused by heavy rainfall, land surfaces being lower than river or sea levels, locations situated in basins surrounded by mountains, and low water absorption capacity. Like many rivers in Indonesia, the Cimoyan River is experiencing severe degradation. Population growth and economic development have led to land-use changes in the watershed (DAS) area. As a result, there has been an increase in peak flood discharge, erosion, landslides, and a decline in baseflow. Additionally, the river faces problems such as waste accumulation, sediment buildup, and human settlement along its banks. Flooding in the Cimoyan River has inundated hundreds of homes in the area, causing significant economic losses including property and infrastructure damage. Downstream communities often suffer crop failures due to the river’s overflow. The purpose of this study is to determine the design flood discharge using the Nakayasu and Snyder synthetic unit hydrograph (HSS) methods for the Cimoyan River. The method used in this study to assess the cross-sectional capacity of the Cimoyan River through HEC-RAS software is a quantitative approach. Thus, the quantitative data were analyzed using statistical techniques. Based on hydrological analysis, the peak flood discharge using the Nakayasu method (Q100) is 813.97 m³/s, occurring at 02:45, while the peak discharge from the Snyder method (Q100) is 484.61 m³/s at 06:29. The cross-sectional capacity of the Cimoyan River, as calculated with HEC-RAS, shows that most sections of the river are safe from overflow.
Pengaruh Perubahan Dimensi Kolom pada Perhitungan Struktur Tahan Gempa Gedung Beton Bertulang Ripan Maulidan; Eko Walujodjati
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.1607

Abstract

Columns are one of the structural elements that play a crucial role in supporting the strength of a building, and therefore require careful calculation when determining their dimensions. In the structural planning of the Cisaga Community Health Center (Puskesmas), there were several changes in the column dimensions to be used. The objective of this study is to understand the impact of these dimension changes on the seismic force calculations and reinforcement design of structural elements, particularly columns. The structural modeling was carried out through three-dimensional simulation using the ETABS V19 structural analysis program. Calculations were based on SNI 1726-2019 and SNI 2847-2019 standards. Based on the analysis, the building with 450 x 450 mm columns experienced a maximum seismic force that differed by 27% compared to the building with 300 x 300 mm columns. The maximum displacement occurred on the second floor, where the 300 x 300 mm column configuration resulted in 69% greater displacement in the x-direction and 71% in the y-direction. The reinforcement calculation for the 450 x 450 mm column yielded a main reinforcement ratio of 1.68%, whereas the 300 x 300 mm column required 5.04%. The 450 x 450 mm column also produced a greater stirrup spacing in the plastic hinge region compared to the 300 x 300 mm column. Larger column dimensions result in greater shear and seismic forces acting on the structure. The larger the column dimensions used, the greater the building’s stiffness against seismic loads.
Tinjauan K3 pada Pembangunan Gedung Mall Pelayanan Publik Kabupaten Garut Ida Farida; Aji Samsul Muarif
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.1625

Abstract

Garut Regency is one of the cities in West Java and is equipped with a wide range of infrastructure and facilities. Among these is the construction of the Public Service Mall building in Garut Regency. However, this project has highlighted the construction industry’s poor track record in terms of occupational safety and health. The high-risk nature of the project site demands optimal stamina from the workers involved. Therefore, Occupational Safety and Health (OSH) is a critical aspect that must be continuously upheld. Given the complexity of the issues involved, this thesis aims to examine OSH practices in the construction of the Public Service Mall in Garut Regency.The research methodology used in this study is the Analytical Hierarchy Process (AHP), which is employed to determine a ratio scale from several pairwise comparisons, whether discrete or continuous. The study identified key factors contributing to workplace accidents: worker attitude, equipment mobilization, and site clearing. The most dominant factor leading to on-site accidents was foundation work, due to frequent interactions between workers and various tools and machinery during this phase.To address this issue, a worksheet needs to be developed that outlines guidelines for the use of Personal Protective Equipment (PPE) in the work area. With this worksheet, workers will be able to easily read and understand the potential hazards they may face if PPE is not used. This will help raise awareness among workers of the importance of PPE in ensuring their safety on the job.

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