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Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil
Published by Universitas Sriwijaya
ISSN : 19074247     EISSN : 24774863     DOI : 10.35139
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Engineering Transportation
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil is a research journal and study in civil engineering that presents research results in the fields of building and structural engineering, transportation, water resources engineering and management, geotechnical engineering, construction engineering and management, environmental engineering, and architecture. The journal was first published in 2006 in the printed version. Since 2015, Cantilever has been published both in the printed and online versions (e-journal). For the online version, previously, the journal could be accessed at http://cantilever.unsri.ac.id, but since Vol. 8 No.2 (2019), the journal is published at http://cantilever.id. This journal is managed and published by the Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University. The journal is published twice a year, in April and October. The Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil aims to: 1) promote a comprehensive approach to civil engineering incorporating viewpoints of different disciplines, 2) strengthen academic exchange with other institutions, and 3) encourage scientists, practicing engineers, and others to conduct research and other similar activities. The journal presents the results of research and studies in the fields of civil engineering, architecture, and environmental engineering. The scope of this journal covers the topics: water resources engineering, transportation, geotechnical engineering, building and structural engineering, construction engineering and management, environmental engineering, and architecture.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 96 Documents
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Analisis Produktivitas Alat Berat dalam Pengelolaan Sampah di Kecamatan Sukarami Kota Palembang: Analysis of Heavy Equipment Productivity in Waste Management in Sukarami District, Palembang City Firda, Ani; Akhirini; Permatasari, Rosmalinda
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 13 No. 1 (2024): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v13i1.270

Abstract

In Indonesia, solid waste has become a problem for municipalities, which could result in hygienic and aesthetically unpleasant issues. The high rate of population growth will have an impact on waste generation since it will change the needs and lifestyles of city dwellers. The collection, transportation, and final disposal of urban solid waste (TPA) require suitable facilities and infrastructure, particularly hefty equipment. Heavy equipment, specifically waste trucks, and heavy digging equipment, plays a significant part in supporting waste management activities. In particular, the Palembang City region is covered in this study's discussion of the productivity of heavy machinery used in waste management, which might begin with the collecting system, transportation system, and heavy equipment employed at the landfill. The study was conducted in Palembang City's Sukarami District, and data was collected by surveying and observing the current condition of the heavy equipment that was already in place, namely in terms of cycle time variables and the volume of waste that was served. The findings of the study indicate that direct communal and direct individual patterns characterize the region's waste-collecting practices. Dump trucks, which are used to transport waste, had a productivity range of 609.98 to 1266.13 kilograms per hour, while bulldozers and excavators had a range of 759.42 to 1166.17 kilograms per hour. This heavy equipment repair recommendation is targeted at bulldozers and excavators since a field investigation reveals that there are now only 2 pieces of bulldozer heavy equipment and 1 unit of excavator heavy equipment available.
Penelusuran Debit Anak Sungai Musi Berdasarkan Pengukuran Curah Hujan Kota Palembang: Discharge Routing of Musi River Tributary Based on Rainfall Measurements in Palembang City Permatasari, Rosmalinda; Andayani, Reni; Umari, Zuul Fitriana
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 13 No. 1 (2024): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v13i1.286

Abstract

The hydrological cycle of the South Sumatra region is influenced by the potential flow produced by the Musi River and its tributaries. The quantity of water that is accessible at any given place is never constant and varies with time. The primary input to the river basin simulation model is flow and discharge data, which must be a time series that completely captures the variability of river flow and discharge data in order to accurately depict water availability. Because the Sekanak River is one of the tributaries of the Musi River, the research built a hydrological model that combines rainfall and river discharge to determine the discharge. The monthly rainfall data is processed to obtain the average rainfall during the data analysis step. The modified Penman method is then used to calculate evapotranspiration. The FJ Mock model was used to examine the mainstay discharge. Results of the discharge analysis for the period of 2018 to 2022 using the FJ Mock method show that the largest discharge occurred between March and June, ranging from 0.203 to 0.241 m3/sec. When the calculated discharge and the actual discharge are compared, it can be seen that the minimum discharge happens in August and the maximum discharge typically occurs in March in the actual discharge data.
Analisis Ketersediaan dan Kebutuhan Air Sub DAS Rupit Menggunakan Remote Sensing dan GIS: Analysis of Water Availability and Demand in the Rupit Sub-Watershed Using Remote Sensing and GIS Nurhikmawaty; Putranto, Dinar Dwi Anugerah; Hadinata, Febrian
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 13 No. 1 (2024): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v13i1.316

Abstract

The water balance of a river basin is crucial for estimating water availability to meet current and future domestic and economic water demand and supply. Parameters such as rainfall, temperature, evapotranspiration, deficit, and surplus soil water content determine the water availability of a river basin (DAS), influenced by factors like land use, soil type, seasonal variations, and other environmental factors. This research aims to estimate the water balance of the Rupit sub-watershed using the FJ Mock model. The Sentinel 1 image of the area was processed to produce a land use map. GIS modeling generated maps of rainfall, land use, soil, slope, morphometry catchment, excess moisture, evapotranspiration, and surface run-off. The analysis reveals that the highest rainfall and evapotranspiration occur in January, while other months average around 56 - 66 mm per month. Excess water during the wet months (November-March) leads to flooding, damaging infrastructure such as residential buildings, roads, and bridges. Conversely, April-October experiences water shortages. The annual weighted watershed deficit is 46.6 mm, with almost no surplus detected. Rainfall run-off simulations demonstrate significant and coherent watershed responses to rainfall patterns. Due to low rainfall and soil moisture levels from preceding months, March exhibits the highest discharge at 15.35 m3/s, with a run-off coefficient of 0.863.
A Review of Recent Developments on Modeling Low Impact Development (LID) Technique: Tinjauan Terhadap Perkembangan Terkini dalam Pemodelan Teknik Low Impact Development (LID) Al Amin, Muhammad Baitullah; Sujono, Joko; Triatmadja, Radianta
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 13 No. 1 (2024): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v13i1.320

Abstract

Urban areas are more susceptible to flooding and water body contamination due to the detrimental effects of urbanization. As a result, a sustainable urban drainage system, also known as low impact development (LID) technique, is required. Although this technique can be extensively applied, the planning and design processes are multi-dimensional, multi-variable, and site-specific, which must consider various local conditions and factors. Consequently, these processes can be very complicated and time-consuming for professionals, necessitating support from computer modeling. This study intends to thoroughly explore the idea of LID modeling, various available computer models, and other tools for its optimization and decision-making processes. The most recent trustworthy journal publications that addressed the subjects under discussion were reviewed. This paper used the descriptive and comparative approaches as the analytical methods. According to the findings of the review, Storm Water Management Model (SWMM) is the computer model in LID modeling that is most frequently employed. This model is a fundamental package for dynamic urban rainfall-runoff modeling, and it has the benefits of being lightweight, simple to use, and an intuitive user interface. Besides, this model is public domain (free to use), open source, and interoperable with many hydro modeling applications. A specific LID editor module is also included in this model for modeling different LID units. To acquire the best LID planning and design from multiple criteria and alternatives, it is also necessary to use metaheuristic algorithms as an optimization model and a multi-criteria decision-making (MCDM) model in addition to the rainfall-runoff model. The authors believe combining the hydrologic and hydraulics models integrated with geographical information systems (GIS), metaheuristic algorithms, and MCDM is the most comprehensive and appropriate method for LID modeling in urban watersheds.
Analysis of Accident Rate in Kolonel Sugiono Street, Malang City: Analisis Tingkat Kecelakaan di Jalan Kolonel Sugiono Kota Malang Rifky Aldila Primasworo; M. Sa’dillah; Maria Goreti Ganjom
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 13 No. 1 (2024): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v13i1.268

Abstract

Kolonel Sugiono street is included in the administrative area of ​​Mergosono Sub-Village, Kedungkandang District, Malang City and is a connecting route between Malang Regency and Malang City. In addition, it is also one of the routes that connects Malang City and Surabaya City, with the road function being a Secondary artery and a national road. Kolonel Sugiono street is one of the lanes with a quite high flow of vehicles every day. Kolonel Sugiono street is an area that has quite a lot of blackspot due to the frequent occurrence of traffic accidents. Based on Malang City Traffic data, there were 51 accidents occurred in 2014-2016 and 40 accidents in 2017-2021, both on Kolonel Sugiono street. This study aimed to determine the traffic’s characteristics, identify blacksites and blackspots, as well as solutions and efforts to improve road safety. According to the analysis results, the service level of Kolonel Sugiono street is 0.98 that is categorized as criterion E, namely the traffic volume is approaching or at its capacity, the flow is unstable with frequently stop conditions. Furthermore, based on the Z-Score and Cusum analysis, Kolonel Sugiono road is identified as a Blacksite and Blackspot because it has a positive Z-Score value, namely segment I is 3.1 and in segment II is 5, has a Cusum value, namely in segment 1 is 32 and in segment II has a value of 28.2. Solutions and efforts to improve road safety are paying attention to, repairing, and installing traffic signs, traffic signaling devices, and other road complementary factors.
Pengaruh Campuran Spent Bleaching Earth (SBE) dan Semen Sebagai Bahan Stabilisasi Tanah Lempung Terhadap Nilai California Bearing Ratio (CBR): The Influence of Spent Bleaching Earth (SBE) and Cement Mixture as Clay Soil Stabilization Material on California Bearing Ratio (CBR) Value Alwiyah, Sarah; Anggreana, Vella; Mildawati, Roza
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 13 No. 2 (2024): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v13i2.296

Abstract

One method for enhancing the natural state of the soil is soil stabilization. Spent bleaching earth (SBE) is the solid waste left over after palm oil is refined for use in oleochemical industry processes. When the field test value exceeds 3% and the laboratory test value exceeds 6%, the soil strength is deemed favorable. The test results indicate that as the curing time increased, the natural soil's California Bearing Ratio (CBR) value increased as well. After 0 days of curing, the natural soil's CBR value was 11.91%; after 4 days, it rose to 12.59%; and after 7 days, it reached 13.99%. Furthermore, the soil that underwent a 4-day soak had a CBR value of 4.01%. Concurrently, the CBR value increased with increasing curing time in the mixed soil CBR test, which had a composition of 10% cement and 22.5% SBE. The mixed soil's CBR value at 0 days of curing was 12.66%. Nevertheless, the CBR value increased significantly to 22.64% after 4 days of curing. Furthermore, the CBR value increased to 27.11% after 7 days of curing. The mixed soil's CBR value was 23.52% over the course of the four-day soaking period. We can conclude that the natural soil and the mixed soil exhibit their highest CBR values following a 7-day curing period. This suggests that the CBR value is influenced by the curing time. In both soil types, a higher CBR value was noted with longer curing times.
Competency Evolution: A Framework for Construction Project Managers: Evolusi Kompetensi: Kerangka Kerja untuk Manajer Proyek Konstruksi Rostiyanti, Susy F.; Hansen, Seng; Vermatasari, Riri
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 13 No. 2 (2024): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v13i2.331

Abstract

The effective execution of a construction project heavily relies on a diverse set of human resources possessing various competencies. Competency is a multifaceted concept with varied interpretations depending on its application and development. In this diverse landscape, competencies are commonly understood to encompass attributes such as knowledge, skills, and abilities. These competencies also feature distinct transferable qualities within intrapersonal and interpersonal competencies. This study delves into the crucial role of competencies in managing construction projects efficiently, emphasizing the three primary components. Employing a Systematic Literature Review, the study aims to uncover the nuanced aspects influencing project manager competencies. The primary objective is to unravel the competencies empowering project managers to successfully navigate construction projects. The findings highlight leadership as the paramount skill competency and underscore the importance of responsibility as a key attitude competency. Additionally, the study introduces a framework delineating the evolutionary progression of project manager competencies from intrapersonal to interpersonal over time. This framework serves as a valuable resource for project management professionals seeking to enhance their competencies and effectively address the dynamic challenges inherent in construction projects.
Impact of Land Use and Land Use Change on Greenhouse Gas Emissions in Palembang City: Dampak Penggunaan Lahan dan Perubahan Tata Guna Lahan terhadap Emisi Gas Rumah Kaca di Kota Palembang Alia, Febrinasti; Hadinata, Febrian; Trimahmudi, Arief; Apriani, Nyimas Ida
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 13 No. 2 (2024): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v13i2.338

Abstract

Climate change is mainly anthropogenic mostly caused by urbanization, human activities in economics, industry, and transportation. The expansion of built-up land, deforestation and the loss of farmland are closely linked to land use and land use change. Greenhouse gas emissions produced by the land use sector can significantly affect global carbon budgets by changing the carbon storage level in terrestrial ecosystem vegetation and soil. In 2005, Indonesia was responsible for approximately 85% of carbon emissions. The Indonesian government is combating environmental issues by mandating local governments, including Palembang City, to conduct greenhouse gas inventories. Changes in land use and the amount of carbon stock in Palembang City can be taken into consideration by the Palembang City Government in dealing with climate change. Data analysis was carried out by interpreting satellite imagery SPOT-7 and classification of land use data into six classes based on AFOLU guidelines. The area derived from land use transition matrix of the period 2012-2018 is used as a basis to calculate greenhouse gas emissions. The greenhouse gas emissions were then calculated using the Gain-Loss method based on the IPCC journal as a reference. Due to land use and land use change from 2012 to 2018, Palembang City emits greenhouse gas as much as -149098.5827 Tonnes C/Year in total. Forest Land Category -26557.22425 Tonnes C/Year, Crop Land Category -112739.8894 Tonnes C/Year, Grass Land Category -32257.56413 Tonnes C/Year, Wetland Category -20721.68315 Tonnes C/Year, Settlement Category 43273.249 Tonnes C/Year and Other Land Category -95.4708 Tonnes C/Year. Inventories on greenhouse gas (GHG) emissions and absorption trends are crucial for climate change mitigation strategies in Palembang. One important strategy towards achieving net zero emissions by 2060, as initiated by the Government of Indonesia, is to curb carbon release associated with land use changes.
Kinerja Struktur Perkerasan Aspal Porus Modifikasi dengan Pemodelan Program KENPAVE: Performance of Modified Porous Asphalt Pavement Structures Using the KENPAVE Program Modeling Aszharri, Arief; Susetyo, Dimas Ariezky; Sulaiman, Suherman
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 13 No. 2 (2024): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v13i2.363

Abstract

Flexible pavement planning methods can be classified into five categories, namely empirical methods, methods for limiting shear failure, methods for limiting deflection, regression methods based on pavement performance or road tests and empirical mechanistic methods. Pavement design procedures can be modeled as several layers or viscoelastic structures in an elastic band. By estimating that the pavement structure is like this, it is possible to calculate the stresses, strains, or deflections caused by traffic loads and environmental factors. This research will evaluate the construction structure of a porous asphalt mixture using cariphalte modified asphalt and the addition of gilsonite on a road section with a high traffic volume with an LHR above 50,000 pavement vehicles so that the thickness of the pavement structure layer will be obtained and then evaluated using the KENPAVE program. The results of this study show that the structural performance of porous asphalt mixtures with the addition of gilsonite in the pavement structure increases not significantly with increasing permit repetition loads at fatigue crack damage criteria of 0.5% and 0.45% for segment 4 and segment 5 respectively. Segment 3 showed a significant increase in the permit repetition load of 26.3% compared to the normal mixture. The structural performance of porous asphalt mixtures with the addition of gilsonite in the pavement structure increases insignificantly with the increase in the repetition permit load on the criteria for used grooves from vehicle wheels by 0.42% and 0.74% respectively for segment 4 and segment 5. However, in segment 3, there was a significant increase in the permit repetition load of 30.5% compared to the normal mixture.
Estimasi Quantity Take Off dan Simulasi Progress Pekerjaan Struktur dengan Pendekatan Building Information Modeling: Estimation of Quantity Take Off and Simulation of Structural Work Progress with Building Information Modeling Approach Sapitri; Subagja, Rusli; Annisa, Bismi
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 13 No. 2 (2024): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v13i2.366

Abstract

Estimating the quantity of take-off and scheduling is crucial in a project life cycle. Errors in the calculation of quantity take-off and scheduling can result in the amount of budget costs incurred and the length of time of the development process. The development of Building Information Modeling (BIM) technology has provided benefits in solving problems faced by the construction industry. This study aims to calculate the Quantity Take-Off and find out the difference from the calculation of costs on building structural components (concrete and rebar volumes), as well as to make simulation for work progress. The BIM software used is Cubicost TAS (Take-off Architecture Structure) to create 3D modeling and Cubicost TRB (Take-off Reinforcement Bar) for Bar Bending Schedule (BBS) calculations. Meanwhile, scheduling simulation is conducted using Autodesk Naviswork. The results showed that the 3D BIM approach resulted in a smaller total concrete volume with a difference of 2.38% (lower 41.11 m3) than the conventional method. Similarly, for rebar material needs, it showed that the difference in rebar volume is 10.83% (30236.42 kg) smaller than conventional methods. The simulation results in 3D form show that using BIM Naviswork can help monitor the work progress between the design and the field according to the planned time based on the 3D model so that it looks more real-time.

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