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Putu Aryastana
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Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa
Published by Universitas Warmadewa
ISSN : 23032693     EISSN : 25812939     DOI : https://doi.org/10.22225/pd.6.2.482.108-122
Core Subject : Social, Engineering,
Civil Engineering, Building, Construction & Architecture Environmental Science
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa, 2303-2693 (Print ISSN), 2581-2939 (Electronic ISSN) is a journal of civil engineering provides a forum for publishing research articles or review articles which published by Warmadewa University Press jointly with Progam Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa. This journal is also dedicated to provide an intellectual space of scholarly discussion how journal of civil engineering able to create the new global formation of civil engineering and similar issues. This journal has been distributed by Progam Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa started from Volume 1 Number 1 Year 2012 for Print and Oline from Volume 3 Number 1 Year 2014 to present. This journal encompasses original research articles, review articles, and short communications, including: Civil Engineering; Water Resources; Construction Management; Transportation; Structure; Geotechnics; Environment; Others Engineering
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 283 Documents
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Pengaruh penambahan limbah cangkang kelapa sawit terhadap nilai kuat tekan beton Randi Bastika; Yoseph Yustinus; Nur Aida
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa 18-25
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.13.1.9225.18-25

Abstract

Ketapang regency is one of the oil palm producing districts in West Kalimantan. The area of oil palm plantations is 650,110 Ha with 2,509,110 tons of oil palm plantations produced in 2022. Under these conditions, will produce quite large amounts of palm oil shell waste. This waste can be used as a mixture of materials for making concrete. Waste utilization is one solution that can be done to maintain existing natural resources. The aim of this research is to determine the effect of adding variations in palm oil shell waste of 5%, 10%, and 15% on the compressive strength of concrete. This research is experimental research in the structure and materials laboratory, Departement of Civil Engineering, Ketapang State Polytechnic. The research was carried out from 12 August 2023 to 17 September 2023. The average value of concrete compressive strength at 28 days for normal concrete and the 5% palm oil shell variation is included in the standard K-200 concrete quality value, but there is a decrease in the 10% and 15% palm oil shell variations. This result is supported by the SPSS test results of two mean tests between 0% and 5% which are the same, there is no difference, but for other variations it is different. The greater the use of palm oil shells in the concrete mixture will reduce the compressive strength value of the concrete. Variation of palm shell mixture that produces the maximum compressive strength of concrete at a variation of 5% with an average value of 221.01 kg/cm2.
Studi modeling dan mapping inundasi tsunami menggunakan software Delft3D studi kasus Pantai Labuan Jukung Lampung M. Gilang Indra Mardika; Mashuri; Dandi Rahman Hakim
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa 54-63
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.13.1.9348.54-63

Abstract

To begin with, one of the valuable beaches at Pesisir Tengah Krui District is Labuhan Jukung Beach that directly encounters the Indian Ocean and is crossed by tectonic plates. The current position could consequence a tsunami disaster and cause loss and damage to the area at any time soon. In addition, no hazard map released by the National Center for Volcanology and Disaster Mitigation in the study location is one of the shortcomings of tsunami-prone areas in the West Coast tourist area. Tsunami wave propagation model establishment is a monumentally vital step in tsunami mitigation to pinpoint areas which are vulnerable to tsunami disasters and maximize the damage control. One way or another is by utilizing Delft3D 4.04.01 software according to wave propagation simulation scenario analysis. The input for modeling adopts historical tsunami height data which has similar characteristics to the case study location points, simultaneously 3.6 meter, 8 meter and 15 meter. The outcome wave height of 3.6 meter takes within 36 minutes to reach the coast and it does not cause inundation, meanwhile the outcome of waves height of 8 meter and 15 meter are accomplishing a tsunami inundation on land which takes 33 - 35 minutes to approach the coast. The data used in these scenarios demands the model accuracy requirements of modeling validation by inspecting the wavelengths formed in shallow water. Based on all of these scenario modeling results, the maximum propagation scenario for an 8 meter wave height on land is 330 meter, on the other hand for a 15 meter wave height is 450 meter from the coastline.
Hubungan antara jarak proyek dengan persepsi masyarakat terhadap pembangunan rumah sakit di Kabupaten Demak Erma Zakiy Arifah; Trida Ridho Fariz; Andin Irsadi; Abdul Jabbar
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa 112-119
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.13.2.9727.112-119

Abstract

The social impact of development is assessed in an Environmental Impact Assessment (AMDAL) document, typically using administrative distance buffers based on Government Regulation No. 22 of 2021, Article 44, Paragraph 2. Communities living close to a planned project are expected to experience both benefits and losses, which may be influenced by proximity to the project. This study analyzes how spatial distance or village boundaries affect social impacts, and the relationship between these factors and public perception of development. The research was conducted in RW 02 / RT 02, 03, 04, 05, and 06 in Pulosari Village. The study used four impact indicators: social patterns (S), business opportunities (E), comfort, and public order (B). Data was collected through questionnaires, observations, and purposive random sampling. The results showed that the most significant impact was on social patterns, with 97% of respondents agreeing that development affects social behavior. Perceptions based on project distance were: very close (3.16), close (3.04), far (2.96), and very far (3.44), with "very far" classified as "very high." For road distance, perceptions were: very close (3.08), close (3.92), far (3.24), and very far (3.12), all classified as "high." However, Chi-Square analysis revealed no significant difference between spatial distance and perception. Both project and road distances showed a relationship in terms of strength, but no significant differences were found, likely due to the flat nature of the urban area. The information presented in this research can be developed as a reference for making AMDAL by creating a mathematical model to provide more specific information.
Pengaruh pemanfaatan limbah batu pipih umeanyar sebagai subtitusi sebagian agregat halus terhadap kuat tekan dan kuat tarik belah beton Ni Kadek Astariani; I Gusti Ngurah Eka Partama; I Wayan Eka Ariantika
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa 105-111
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.13.2.9949.105-111

Abstract

Concrete is a building material that is currently widely used in the construction sector. The increasing demand for concrete materials will cause the availability of materials taken from nature to decrease. Therefore, alternatives are needed to find substitutes for these natural materials, one of which is by using slate stone waste as a substitute for fine aggregate (sand). To increase the economic value of waste produced from the stone crushing industry, research was carried out using slate stone waste as a substitute for fine aggregate in normal concrete mixtures. By substituting some of the fine aggregate with slate stone waste, it is hoped that it can increase the compressive strength and split tensile strength of the concrete. Test specimens with a cylindrical shape with dimensions of 150mm x 300mm were made in a total of 80 pieces and tested at the age of 7 days and 28 days with a variety of test objects, namely normal concrete as a control (BN), fine aggregate substitution 25% (BP25%), 50% (BP50%), 75% (BP75%), 100% (BP100%). The optimum compressive strength value obtained was 36.91 MPa with fine aggregate substitution of 57.02%. This compressive strength value is 23.24% greater than normal concrete. Meanwhile, the optimum splitting tensile strength value is 2.42 MPa, with fine aggregate substitution of 46.15%. This tensile strength value is 9.01% greater than normal concrete. With the results of compressive strength and splitting tensile strength being greater than normal concrete, slate stone waste can be recommended as a partial substitute for fine aggregate.
Manajemen risiko pada sistem penyediaan air minum (SPAM) perpipaan dengan metode failure mode and effect analysis dan fault tree analysis di Kabupaten Minahasa Utara Stania Ekarista Bitty; Liany Amelia Hendratta; Arthur Haris Thambas; Grace Malingkas
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa 138-147
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.13.2.10108.138-147

Abstract

The construction of a piped Drinking Water Supply System in North Minahasa Regency is very much needed to meet the community's access to drinking water needs. Apart from planning and implementing SPAM construction to achieve quality and sustainable drinking water services, a risk management process is also needed to reduce and anticipate system failures. Through this research, failures and risks in the SPAM development process in North Minahasa Regency can be analyzed using appropriate risk management methods. This is to ensure the sustainability and reliability of SPAM for the communities served. To obtain the data needed in this research, researchers conducted brainstorming, direct observations in the field, interviews with parties involved in SPAM development, and filled out questionnaires. The data obtained is then analyzed using the risk management process, starting from the stages of risk identification, risk assessment, risk management, and implementation of risk management. From the results of the risk assessment using the Failure Mode and Effect Analysis (FMEA) method and the Fault Tree Analysis (FTA) method, 85 risks were identified. In the technical planning for SPAM implementation there are 19 risks, raw water units 28 risks, production units 19 risks, distribution units 12 risks, and service units 7 risks. Each SPAM component is taken for potential risk by calculating the highest RPN value, namely 324.76, for the risk of workers not using K3 equipment. Using the fault tree in the FTA method, we get 13 basic events for the risk of delays in work implementation, 11 basic events for the risk of workers not using K3 equipment, 12 basic events for construction implementation that does not follow implementation methods and plan drawings, 12 basic events for the risk of pipe leaks, and 12 basic events for water use that are not recorded by the water meter. The risk management process for piping SPAM in this research can be a reference framework for implementing further SPAM development.
Pemetaan batimetri dan pemodelan morfologi dasar danau serta analisa daya tampung genangan Danau Patenggang Adithya Kresna Sumaamijaya; Fazel Karly; Nandra Ramira Ar; Haikal Muhammad Ihsan
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa 76-86
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.14.1.10176.76-86

Abstract

This research aims to map the bathymetry and model the bottom morphology of Patenggang Lake and analyze the lake's inundation capacity. This mapping is important because detailed spatial and morphometric data is not yet available as a basis for planning the management and sustainable use of water resources in the area. The research was conducted through mechanical depth measurement, using a measuring stick for shallow areas and a weighted measuring tape for the middle of the lake. The depth data collected was then processed using the topo to raster interpolation method in ArcGIS software to produce a hydrologically accurate digital elevation model (DEM). The DEM became the basis for analyzing the shape and topographic structure of the lake bed. The results show that Patenggang Lake has a basic morphology in the form of a bowl-like basin, with a maximum depth of 12.5 meters in the northwest and a minimum depth of 3 meters in the northeast. The topographic characteristics of the bottom vary: the northwest is relatively gentle, the northeast is moderately gentle, the southeast is moderately steep, and the northwest is very steep. The storage capacity analysis showed that the surface area and water volume increased linearly with elevation, but at different rates of increase. These main results show that elevation changes greatly affect the lake's storage capacity and have implications for the stability of its hydrological functions. This research provides scientific contributions in the form of basic morphometric data and the latest bathymetry model that can be used in lake ecosystem management. Practically, these results can serve as the basis for technical planning of Lake Patenggang water resources management, especially to support conservation, water quality control, irrigation, and development of tourism potential based on accurate spatial data.
Optimisasi pengambilan keputusan dalam manajemen sumber daya manusia proyek konstruksi melalui pendekatan bayesian networks Arif Aryadhana Sugawa; Steenie E. Wallah; Arthur H. Thambas
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa 177-186
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.13.2.10182.177-186

Abstract

This research focuses on the importance of human resources management (HR) in government construction projects, which often face challenges such as delays, cost overruns, and quality problems. The aim of this research is to identify the main factors that influence workforce performance in construction projects using a Bayesian network approach. In this context, factors such as workplace conditions, relations between workers, technology, materials and tools, environment, and project management and coordination have been identified as key factors that have the potential to influence project success. This research methodology involves collecting data through surveys and interviews with construction professionals. The data obtained were analyzed using Genie and SPSS V.26 software. The Bayesian network method is used to model and analyze probabilistic relationships between factors that influence workforce performance. This approach allows for more prescriptive and informed decision-making, which is critical to overcoming the challenges faced in construction projects. The analysis results show that technology and project management have a significant impact on workforce performance. Optimization carried out using the Bayesian Networks approach can reduce potential problems by up to 7-9% for the various factors analyzed. This confirms the effectiveness of this approach in increasing labor efficiency and productivity in construction projects. This research also highlights the importance of continuous improvement strategies in project management. As a result of this research, the framework developed can assist project managers in identifying and addressing critical factors that influence HR performance. Additionally, this research proposes that further implementations of Bayesian networks can be applied to other aspects of civil engineering, such as risk management and project scheduling, to improve overall project outcomes.
Analisis kepuasan pelanggan terhadap kinerja kontraktor pada proyek sistem penyediaan air minum di Kabupaten Minahasa Utara Suci Cahyani Mukramin; Arthur H. Thambas; Ariestides K. T. Dundu; Grace Y. Malingkas
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa 187-198
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.13.2.10183.187-198

Abstract

Improving the quality of the water supply system in North Minahasa Regency is a priority for community welfare through the provision of clean water that supports health, sanitation, and the economy. Contractor performance plays a key role in project success. However, projects often experience delays or failure, so customer satisfaction is not met. This research aims to measure customer satisfaction with contractor performance and identify features that influence satisfaction to provide recommendations for improving contractor performance. A quantitative approach was used through a survey with questionnaires distributed to project owners, supervisory consultants, and technical teams involved between 2021 and 2024. Data analysis was carried out using the Naïve Bayes algorithm and backward elimination techniques to filter out insignificant features. The results showed that 81.4% of customers were satisfied with the contractor's performance, with the model showing 87.14% accuracy, 94.44% precision, and 89.47% recall. The main features that influence satisfaction are: project work performance domain at the planning process, delivery performance domain at the execution process, delivery performance domain at the monitoring and controlling process, measurement performance domain at the execution process, uncertainty performance domain at the initiating process, uncertainty performance domain at the planning process, and uncertainty performance domain at the monitoring and controlling process. Therefore, the Naïve Bayes algorithm is effective in analyzing customer satisfaction data and providing useful insights for contractors.
Analisis sisa umur rencana Jalan Baturinggit di wilayah Kubu Karangasem akibat adanya beban berlebih Kadek Yoga Praba Desa; Anak Agung Gede Sumanjaya; Cokorda Agung Yujana
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa 204-210
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.13.2.10280.204-210

Abstract

Baturinggit Road is one of the main routes for shipping goods/materials involving overloaded vehicles. The more vehicles that pass, the greater the load that passes through the road, resulting in road damage. The purpose of this study was to analyze the remaining life of the road design caused by overloaded vehicles. The study was conducted for 3 days, starting from April 15, 2024 - April 17, 2024 at 08.00 WITA - 18.00 WITA on the Baturinggit Road section, Kubu District, Karangasem Regency, Bali Province. Based on the results of the study, it is known that the cumulative Vehicle Damage Factor (VDF) of normal loads during the 10-year Remaining Life (RL) is 10,658,570 ESAL while the cumulative VDF of excess loads during the 10-year RL is 28,727,670 ESAL. Based on calculations using the AASHTO 1993 method, the magnitude of the RL decrease that occurred was 291%, meaning that there was a decrease in RL of 7.45 years so that the percentage of cumulative VDF increase due to overloading was 169.53%. The percentage of vehicles with overloading that caused damage on the Baturinggit Road section included pickup trucks of 30%, light trucks of 59.80%, medium trucks of 119.52%, heavy trucks of 10% and 1.2-2 trailer trucks of 19.08%. The conclusion from the calculation results of the AASHTO 1993 method was a decrease in RL of 291% or equivalent to a loss of road life of 7.45 years from the initial design life. The impact of overloading on medium trucks is the focus of attention because of its very significant contribution to road damage.
Perancangan bangunan pelindung pantai dalam penanganan abrasi (studi kasus: Pantai Caruban, Jawa Tengah) M Gilang Indra Mardika; Tera Melya Patrice Sihombing; Retno Hutami Adinigsih
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa 21-34
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.14.1.10341.21-34

Abstract

Citing from the National Disaster Management Agency (BNPB) in 2022, abrasion occurred located at Caruban Beach, Gedongmulyo Village, Lasem District, Rembang Regency, Central Java Province. The impact of this abrasion causes a significant change in the coastline. One of the efforts to overcome these problems is to plan coastal protection which is adjusted to the existence of the parameters and urgency on Caruban Beach. The main aims of this research is planning breakwater structure as coastal protection and addressing the abrasion. The parameters used in the planning of coastal protection include significant wave height, tides with HHWL values, refractive coefficients, and shoaling coefficients for the transformation of deep water into shallow water, the raise up of water surface, and Sea Level Rise value. The data on high and significant wave periods are processed using the probability distribution of the Fisher Tippett Type I method at a 50-year return period with high values and extreme wave periods of 2.402 meters and 5.61 seconds, respectively. Waves transformation by the refractive coefficient and shoaling coefficient is derived around 1.57 meters at a depth of 5 meters. HHWL value is earned at 0.928 meters. The value of wave set-up is 0.11 meters, while sea level rise in the best estimate in 2075 is 0.24 meters. So design water level is 1.28 meters. The coastal protection chosen is offshore breakwater because it serves to maintain the position of the coastline and maintain the function of Caruban Beach as tourist destination. Breakwater planning uses three types of protective layers, namely tetrapods, dolos, and boulders, where the wave propagation value on the three types of protective layers is derived consecutively of 0.73 meters, 0.68 meters, and 1.46 meters. Thus, the elevation of the tetrapod, dolos, and boulder protection layers is 2.6 meters respectively, 2.5 meters, and 3.3 meters.

Page 26 of 29 | Total Record : 283

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