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Jurnal Teknik Sipil
Published by Universitas Tanjungpura
ISSN : 14123576     EISSN : 26218429     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Jurnal Teknik Sipil Universitas Tanjungpura merupakan publikasi ilmiah berkala yang diperuntukkan bagi peneliti yang hendak mempublikasikan hasil penelitiannya dalam bentuk studi literatur, peneltian, dan pengembangan teknologi sebagai bentuk penerapan metode, algoritma, maupun kerangka kerja. Melalui penulisan Jurnal Teknik Sipil yang terbit pada bulan Juni dan Desember setiap tahun. Redaksi Jurnal Teknik Sipil Universitas Tanjungpura mengundang para profesional dari dunia usaha, pendidikan dan peneliti untuk berpartisipasi mengembangkan profesi serta menyebarluaskan perkembangan ilmu dalam bidang Teknik Sipil termasuk geoteknik, transportasi, struktur, sumberdaya air dan lingkungan dengan penekanan khusus pada pengurangan resiko bencana termasuk pendekatan sosio-teknik untuk penanggulangan.
Arjuna Subject : -
Articles 588 Documents
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FLOW HYDROGRAPH GENERATION FOR MELAWI SUB-WATERSHED USING THE SNYDER SYNTHETIC UNIT HYDROGRAPH MODEL Muslim, Alfin Islami Ibnu; Soeryamassoeka, S. B.; Nirmala, Azwa
Jurnal Teknik Sipil Vol 24, No 2 (2024): Vol 24, No 2 (2024): JURNAL TEKNIK SIPIL EDISI MEI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i2.69006

Abstract

The study, titled "Flow Hydrograph Generation for Melawi Sub-Watershed Using the Snyder Synthetic Unit Hydrograph Model," investigates the hydrological response of the Melawi Sub-Watershed in West Kalimantan to rainfall events using the Snyder Synthetic Unit Hydrograph Model (SUHM). This model, instrumental in areas with limited hydrological data, is well-suited for the Melawi Sub-Watershed. The analysis uncovers a peak discharge (Qp) of 13.671 m ³/sec with a time to peak (Tp) of 88.905 hours, highlighting the region"™s susceptibility to prolonged rainfall. The model"™s parameters, such as Ct and Cp, are used to generate accurate flow hydrographs, which are essential for flood management. The results show varying design discharges for different return periods (Q2 to Q100), providing critical data for flood risk mitigation and infrastructure planning. This research underscores the SUHM's effectiveness in flood forecasting and sustainable development, aiding in resilient flood management strategies and informed infrastructure design in the Melawi Sub-Watershed. The findings of this study also pave the way for future research in hydrology and flood management.
ANALYSIS OF BLACK SPOTS ON JL. RAYA KAKAP KUBU RAYA DISTRICT WITH Z-SCORE METHOD Azwansyah, Heri
Jurnal Teknik Sipil Vol 24, No 2 (2024): Vol 24, No 2 (2024): JURNAL TEKNIK SIPIL EDISI MEI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i2.72389

Abstract

Kubu Raya is a district in West Kalimantan Province. It is directly adjacent to Pontianak City, the province's capital. This condition increases mobility and vehicle traffic, resulting in a relatively high accident rate.Traffic accident data came from the Kubu Raya Regency Police Station, and field observations obtained data on road condition and completeness. The analysis methods used are weighting, Z-Score, and CUSUM (Cumulative Summary).The number of accidents in Jalan Raya Kakap during 2020 - 2022 amounted to 26 incidents. The characteristics of traffic accidents on Jalan Raya Kakap for three years (2020 - 2022) are that victims with minor injuries are more than victims of death and serious injuries, namely seven victims in 2020, 8 victims in 2021, and 18 victims in 2022. STA points 0 - 1 have the highest number of accidents during the 3-year period, which is 152 STA points. 2-3 by 129, and point STA. One black spot falls into the high accident vulnerability category: point STA. 0-1. Two black spots fall into the high accident vulnerability category: STA points. 2-3 and STA. 7-8. Four black spots fall into the medium category. Three black spots fall into the low category. Moreover, four points are categorized as not accident-prone.  
FINANCIAL FEASIBILITY ANALYSIS OF THE PONTIANAK STATE CATHOLIC RELIGIOUS COLLEGE (STAKATN) SANTA MARIA LECTURE BUILDING PROJECT Lestari, Nina Septia; Lusiana, Lusiana; Rafie, Rafie
Jurnal Teknik Sipil Vol 24, No 2 (2024): Vol 24, No 2 (2024): JURNAL TEKNIK SIPIL EDISI MEI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i2.78720

Abstract

In the era of globalization and rapid advancement in higher education, Indonesian institutions face challenges in providing adequate facilities to support learning. The State Catholic College of Pontianak (STAKATN) Santa Maria aims to address this by constructing a new lecture building. This study conducts a financial feasibility analysis of the project using Net Present Value (NPV), Benefit-Cost Ratio (BCR), Internal Rate of Return (IRR), Payback Period (PP), and Sensitivity Analysis. The analysis, based on a 25-year planning period, shows a positive NPV of IDR 12,949,362,911.15, an IRR of 9.36% (exceeding the discount rate of 5.1%), and a BCR of 1.231, indicating that the project's benefits exceed its costs. The Simple Payback Period is ten years, while the Discounted Payback Period is 14. Sensitivity analysis reveals that the project"™s viability is at risk with significant decreases in benefits or cost increases. The project is financially viable, but careful management of risks and costs is essential for successful implementation.  
DETERMINATION OF REPRESENTATIVE MOCK MODEL PARAMETERS FOR MONTHLY DISCHARGE CURVE DEVELOPMENT IN THE UPPER KAPUAS RIVER BASIN Sutera, Mahardika Wira Aji Bayu; Soeryamassoeka, S. B.; Yulianto, Eko
Jurnal Teknik Sipil Vol 24, No 2 (2024): Vol 24, No 2 (2024): JURNAL TEKNIK SIPIL EDISI MEI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i2.69008

Abstract

Representative Mock Model Parameters for Generating Monthly Discharge Curves in the Upper Kapuas River Basin provide valuable insights into hydrological processes influenced by climatic factors. Potential evapotranspiration peaks in August due to elevated temperatures and intensified sunshine during the 2005 dry season, leading to increased water demand from soil and vegetation. This results in heightened water loss to the atmosphere, reducing available water for river flow and decreasing monthly discharge, which is crucial during dry periods. Effective water resource management strategies are essential to mitigate potential water scarcity. High rainfall in the upstream Kapuas watershed significantly impacts monthly discharge, with increased surface flow directly boosting river discharge. The monthly discharge varies widely between rainy and dry seasons, notably rising during heavy rainfall, potentially causing flooding. Effective watershed management, including runoff management, reforestation, and infrastructure development, is critical to mitigate these impacts and optimize water resources for irrigation and supply, ensuring efficient utilization of increased rainfall. Correlation and RSR test results underscore the model's ability to capture variable relationships and predict outcomes accurately. Strong correlations between 0.8 to 1 and RSR values ranging from 0.5 to 0.7 demonstrate the model's reliability in various scenarios. Models with lower RSR values below 0.5 exhibit exceptional prediction accuracy, emphasizing their utility in diverse applications. These findings highlight the importance of refining models to enhance accuracy and reliability in predictive hydrological applications within the Upper Kapuas River Basin, ensuring adequate water resource management and flood risk mitigation.
UTILIZING FIBER MESH AND NYLON ROPE AS NON-STEEL REINFORCEMENT FOR SANDWICH CONCRETE PLATE PRECAST IN COASTAL AREA STRUCTURES Elvira, Elvira
Jurnal Teknik Sipil Vol 24, No 2 (2024): Vol 24, No 2 (2024): JURNAL TEKNIK SIPIL EDISI MEI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i2.79724

Abstract

Reinforced concrete, a popular construction choice, is often selected due to the limited availability of materials like wood and increased familiarity with concrete. However, coastal structures using steel bars in reinforced concrete usually face corrosion issues. Corrosion can be mitigated by increasing concrete compressive strength and enlarging the concrete cover to protect the steel from saltwater. These measures are challenging for small structures due to the small dimensions of columns, beams, and plates, making thick concrete covers difficult. Additionally, small structures are often built manually or semi-manually, complicating the achievement of higher compressive strength and watertightness. However, there is hope. Researchers have developed reinforced concrete with non-metal reinforcement, such as fiber mesh and nylon rope, and combined regular and lightweight concrete to reduce dead loads, creating a sandwich concrete slab. Test results show that the slab has sufficient strength for light construction, with a strong bond between mortar and foam concrete. Although fiber mesh and nylon rope do not yet increase the slab's flexural strength, nylon rope prevents brittle failure. This promising research paves the way for further studies and potential improvements in the future.
BRACKISH WATER DESALINATION IN SUNGAI ITIK AREA USING REVERSE OSMOSIS (RO) METHOD Setiawan, Eric; Danial, Mochammad Meddy; Purnaini, Rizki; Soeryamassoeka, S. B.
Jurnal Teknik Sipil Vol 24, No 2 (2024): Vol 24, No 2 (2024): JURNAL TEKNIK SIPIL EDISI MEI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i2.61931

Abstract

This research addresses the complexities of treating brackish and seawater from Sungai Itik using Reverse Osmosis (RO), emphasizing advanced pre-treatment methods, hybrid RO systems, and fouling control. Pilot-scale tests confirmed the feasibility of these approaches in meeting clean water standards and balancing economic and environmental sustainability.Using a single ultra-low pressure (ULP) RO membrane, salinity decreased by 57.36%, Total Dissolved Solids (TDS) by 25.76%, and watercolor by 63.25%, achieving improved water quality. Expanding to a ULP and Brackish Water (BW) membrane combination further reduced salinity by 40.63%, TDS by 35.76%, and watercolor by 92.13%, highlighting the benefits of hybrid systems for varied water conditions. In seawater treatment, a ULP membrane reduced salinity by 69.48%, TDS by 93.49%, and watercolor by 97.74%, proving effective for converting seawater to potable or industrial-grade water. Combining ULP and BW membranes achieved salinity reductions of 94.67%, TDS by 94.02%, and watercolor by 34.94%, which is crucial for applications needing ultra-clean water. These findings underscore RO's potential to mitigate water quality challenges and support sustainable water management in diverse environments.
STUDY OF THE EFFECT OF MINERAL ADMIXTURE ADDITION ON PAVING BLOCKS' PHYSICAL AND MECHANICAL PROPERTIES lo, Hansen; Sutandar, Erwin; Budi, Gatot Setya
Jurnal Teknik Sipil Vol 24, No 2 (2024): Vol 24, No 2 (2024): JURNAL TEKNIK SIPIL EDISI MEI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i2.76545

Abstract

Paving blocks, concrete bricks made from cement and sand, are a vital alternative to ground cover. Their extensive, precast nature, water absorption capabilities, affordability, and ease of use contribute to their popularity. However, the additional ingredients, particularly mineral admixtures, hold the potential to enhance these blocks' quality and performance significantly. The mineral admixtures used, such as limestone, quartz sand, and gypsum, are instrumental in improving the performance of paving blocks, offering a promising avenue for further research and application. This research, conducted with meticulous scientific rigor, investigated paving blocks' physical and mechanical properties. Paving block test objects were created using sand, cement, and crushed stone with mineral admixtures. The mineral admixtures used in this experiment, including gypsum, quartz sand, and limestone, were crushed before being used in a stone cruiser machine to make them powder and reactive. Compressive strength test, weat resistance test, volume weight test, water absorption test, and visual inspection were conducted experimentally. The research results, derived from a robust experimental setup, revealed that paving blocks with 10% gypsum additives, 6% quartz sand powder, and limestone powder produced a more excellent compressive strength value than standard paving blocks, values of 36,884 MPa, 37,573 MPa, and 38,950 MPa with a regular paving block compressive strength value of 36,119 MPa followed by a decrease in the percentage of absorption. This suggests that using mineral admixtures at a certain percentage as an additional material can improve the quality of paving blocks. However, it is essential to note that adding too many mineral admixtures can also decrease the strength of the paving block, emphasizing the need for careful application of these materials in construction. These findings provide valuable insights for civil engineers, construction professionals, and researchers in materials science and construction technology, enhancing their understanding of the role of mineral admixtures in paving block strength.
DETERMINATION OF DISCHARGE COEFFICIENT THROUGH LABORATORY TESTING USING BROAD-CRESTED WEIR Baihaqi, Reza; Herawati, Henny; Soeryamassoeka, S. B.
Jurnal Teknik Sipil Vol 24, No 2 (2024): Vol 24, No 2 (2024): JURNAL TEKNIK SIPIL EDISI MEI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i2.68560

Abstract

This study examined the impact of different threshold widths and channel narrowing configurations on water flow characteristics. The research involved testing three threshold widths (AL1, AL2, AL3) and six narrowing models (PM10, PM15, PM20, PT10, PT15, PT20) with varying water heights (1.0 cm, 1.5 cm, and 2.0 cm) above the threshold. Results indicated that narrowing at the upstream end increased water levels upstream and downstream, with a corresponding rise in flow velocity at the downstream end. Discharge values and coefficients varied significantly across different configurations, with non-linear increases observed in discharge coefficients due to changes in water levels and velocities. Scaling calculations provided prototype channel dimensions and flow characteristics, highlighting the study's strengths in using a fiberglass open channel and diverse testing configurations. However, limitations include the laboratory scale and exclusion of channel roughness effects.
THE INFLUENCE OF AGGREGATE SIZE AND COMPACTION ON VOID CONTENT AND COMPRESSIVE STRENGTH OF PREVIOUS CONCRETE Powerija, Ing Cahya; Sutandar, Erwin; Supriyadi, Asep
Jurnal Teknik Sipil Vol 24, No 2 (2024): Vol 24, No 2 (2024): JURNAL TEKNIK SIPIL EDISI MEI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i2.78762

Abstract

Pervious concrete is one of the alternatives to prevent flooding during the rainy season. Because of the large number of pores produced by the absence or use of fine aggregate in its production, previous concrete has a poor compressive strength. This study focuses on the size and manner of compaction of coarse aggregates to boost the compressive strength of previous concrete. It is essential to address the void content in this process. The research started by analyzing the materials used to make the previous concrete mix. The next step was to determine the void content, plan the mix design, make the mix, treat the concrete, and finally test it using various methods such as volume weight, compressive strength, porosity, and permeability tests. Research shows that a three-layer perforated variation on a 0.5/0.5 cm coarse aggregate with a compressive strength of 21.04 MPa, volume weight of 1896.674 kg/m3, permeability of 0.597 cm/s, and porosity of 16.232% yields the best results. Although 24 MPa was the intended compressive strength, previous concrete fell short due to the paste content used in the compaction method. In addition, the volume weight is lighter than the plan, and the permeability and porosity are more significant than the plan. The relationship between aggregate size and compaction method is based on the graph of the effect of void content and paste content, which shows that the greater the paste content, the smaller the void content produced.
Geometric Design of Coordinated Traffic Signal Intersections: Case Study of Four-Way Intersections at Kapuas II Bridge and Kapur Village Zulkarnaen, Dedy; Mayuni, Siti; Mukti, Elsa Tri; Nurhayati, Nurhayati
Jurnal Teknik Sipil Vol 24, No 3 (2024): Vol 24, No 3 (2024): JURNAL TEKNIK SIPIL EDISI AGUSTUS 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i3.84088

Abstract

The four-way intersections at Kapuas Bridge II, Jalan Mayor Alianyang "“ Adisucipto (Intersection I), and Jalan Mayor Alianyang "“ Kapur Village (Intersection II) are connected by Kapuas Bridge II. According to the 2023 Indonesian Road Capacity Guidelines (PKJI), congestion at these two adjacent intersections can affect each other, necessitating coordinated solutions. The PKJI 2023 approach evaluates intersection performance, focusing on the Degree of Saturation and Delays. For optimal performance, intersections must meet minimum service levels. Intersections I and II have saturation levels of 1.08 and 1.15, respectively, and delays of 217 and 273 seconds, with a service level F, indicating delays exceeding 60 seconds. To meet PKJI standards, saturation should be below 0.85, which is not the case here. Improvements include widening approaches and optimizing green and cycle times. The first phase involves widening the north and south approaches to 8 meters and the east and west approaches to 7.5 meters, reducing the cycle time from 160 to 120 seconds. The final phase widens all approaches to 20 meters and sets the cycle time to 90 seconds.Keywords: APILL Intersection, Degree of Saturation, Delay, Service Level, Coordination of Intersection, Cycle Time

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