Logic : Jurnal Rancang Bangun Dan Teknologi
Logic : Jurnal Rancang Bangun dan Teknologi is a peer-reviewed research journal published by Unit Publikasi Ilmiah, Pusat Penelitian dan Pengabdian Masyarakat, Politeknik Negeri Bali, aiming at promoting and publishing original high quality research in all disciplines of engineering and applied technology. All research articles submitted to Logic should be original in nature, never previously published in any journal or presented in a conference or undergoing such process across the world. All the submissions will be peer-reviewed by the panel of experts associated with particular field. Submitted papers should meet the internationally accepted criteria and manuscripts should follow the style of the journal for the purpose of both reviewing and editing.
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<![CDATA[Mode Choice Probability Between Bus and Railway Cianjur-Padalarang Route ]]>
<![CDATA[Diah Eka Rahmawati]]>;
<![CDATA[Eva Azhra Latifa]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol. 22 No. 2 (2022): July ]]>
Publisher : <![CDATA[Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v22i2.81-88
<![CDATA[Travel between cities in the Bogor, Sukabumi, and Cianjur areas is only accommodated by road-based public transportation that is interstate bus. The government issued a policy to reactivate railroads from Bogor to Padalarang, so that the southern region of West Java are connected to the rail network. This research intention to analyze characteristics of socio-economic users, characteristics of trip users, and analyze how much passengers move from the current bus to the Cianjur-Padalarang train. Data were collected by distributing questionnaires using stated preference techniques and analyzed using binary logit difference model with linear regression. The attributes to be analyzed are the difference between travel costs, travel time, and frequency of departure. The characteristic of users were analyzed with descriptive statictic method. The socio-economic characteristics of the passengers obtained were majority is male, aged 21-30 years old, education level senior high school, worked as entrepreneurship, income Rp2.000.001-Rp3.000.000, transportation costs for a month Rp100.001-Rp300.000. The characteristics of trip users are dominated by origin from Cianjur destination to Padalarang to work (economy), the frequency of trips is 1-2 times per week, the reason choosing the bus because of the bus have more easier mobility, the main travel time is 121-150 minutes. The results of the calculation of model sensitivity, the potential for passenger transfer from bus to train will increase if the difference in cost and travel time between trains and buses is getting smaller, and the difference in frequency is getting bigger.]]>
<![CDATA[ANALYSIS OF IMPLEMENTATION SUPPLY CHAIN MANAGEMENT MATERIAL PROCUREMENT EFFECT ON CONSTRUCTION PROJECT PERFORMANCE ]]>
<![CDATA[Mayda Pahinggis]]>;
<![CDATA[I Ketut Sucita]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol. 22 No. 2 (2022): July ]]>
Publisher : <![CDATA[Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v22i2.89-96
<![CDATA[The implementation of material procurement supply chain management is very much needed by the construction industry to improve project performance. Supply chains can contribute to reduced costs, improve efficiency and improve the delivery of a material's final results promptly on time. So that it is expected to achieve the project objectives in accordance with the cost, quality and time. that had been planned. This research aims to determine the influence of the implementation of supply chain management of material procurement to the performance of construction projects and the biggest challenges in implementing supply chain management of material procurement. The analysis methods used in this study are descriptive methods and regression methods with quantitative approaches. Data collection techniques using a questionnaire and using a Likert scale. The number of respondents as many as 28 people selected from project employees with purposive sampling method. The results showed that the application of material procurement supply chain management characteristics had a positive and significant effect on the performance of construction projects by 39%. As well as the biggest factors that become challenges in implementing supply chain management of material procurement, namely the uncertainty of demand with an average of 2,797 and the smallest factor that becomes a challenge in implementing supply chain management of material procurement, namely internal uncertainty factor with an average of 2,202. Thus, from the results of the research, it is expected that the project can play a more active role in implementing supply chain management of material procurement to improve the performance of construction projects.]]>
<![CDATA[The Analysis of Type L Joint Precast Beam Concretea ]]>
<![CDATA[A. Rudi Hermawan]]>;
<![CDATA[Eka Sasmita Mulya]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol. 22 No. 2 (2022): July ]]>
Publisher : <![CDATA[Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v22i2.97-102
<![CDATA[Research precast beam type L shape has produced strength of flexure where it was jointed at middle of span with L shape. Problem was about strength and deflection with joint of Type L shape. Aim of this research was determined strength of flexure such deflection and maximal load would be apllicated. Precast beam type L shape consist of two beam P1 and P2 were tested at two point load was applicated. This research have produced of data of precast beam P1 and P2. Precast beam P1 has deflection 28,44 mm at maximum load 11,21 Ton. Precast beam P2 has deflection 26,71 at maximum load 11,76 Ton. Except that data, has produced also chart of load versus deflection where precast beam type L shape has behavior less for ductility approximately du/dy 1,17, where deformation inelasticity was not seem. That occur because overlapping at joint of precast concrete at middle of span.]]>
<![CDATA[INFLUENCE OF SALINITY LEVELS ANALYSIS ON SETTLING VELOCITY OF FINE SEDIMENT GRAINS IN CILIWUNG ESTUARY: Salinity Levels on Settling Velocity of Fine Sediment Grains ]]>
<![CDATA[Tri Wulan Sari]]>;
<![CDATA[Denny Yatmadi]]>;
<![CDATA[Rommy Martdianto]]>;
<![CDATA[Sujito]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol. 22 No. 2 (2022): July ]]>
Publisher : <![CDATA[Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v22i2.110-118
<![CDATA[Transport of estuarine sediment have a highly complex method, which is the combined effects result of periodically reciprocating flow, ocean waves, and the electrochemical characteristic of sea water [1]. Settling velocity (SV) is such a parameter fundamental for sediment researchers so that its accurate resolution has been regarded as a top priority in correcting modelling numerical and conceptual understanding of fine sediment dynamics [2] [3]. The goal of this study is to analyze the effect of salinity levels on the settling velocity of fine sediment grains in the Ciliwung estuary, Jakarta. The method used is direct measurement using the hydrometer analysis method. The result of experiment shows salinity levels affect the settling velocity of fine sediment grains in the Ciliwung estuary. The higher salinity, more faster the settling velocity of fine sediment grains. The average settling velocity at distilled water salinity 0 ppt is 1.083 mm/minute, sea water with salinity 0.3 ppt is 1.537 mm/minute, and sea water with salinity of 0.6 ppt of 1.561 mm/minute.]]>
<![CDATA[APPLICATION OF COMMON DATA ENVIRONMENT (CDE) AS A METHOD OF DESIGN REVIEW IN CONSTRUCTION PROJECT ]]>
<![CDATA[Sabrina Ayu Lestari]]>;
<![CDATA[Hari Purwanto]]>;
<![CDATA[Jonathan Saputra]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol. 22 No. 2 (2022): July ]]>
Publisher : <![CDATA[Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v22i2.103-109
<![CDATA[Abstract. The development of technology in construction projects produces a method known as Building Information Modelling (BIM). Common Data Environment (CDE) is one of the cloud technology adoption systems that can effectively convey various data information from several BIM softwares without having to download the softwares. Searching for accurate project information according to the latest version takes a long time if the document or information is not well structured. This study aims to analyze the application of CDE to the project in the design review and to determine the criteria that affect the success of the implementation of CDE in the design review and the biggest obstacles in the use of CDE. This research was conducted using a survey method which was distributed to representative respondents. The results showed that the implementation of CDE as a design review on the project was in accordance with CDE standards with an average respondent's level of achievement of 83.28%. The most influential criterion on the success of CDE implementation in the design review is data security. The biggest obstacles are in the form of lack of cooperation between CDE users, undisciplined use, and data that is not always updated.]]>
<![CDATA[WEB-BASED GEOGRAPHIC INFORMATION SYSTEM OF BANTEN PIODALAN STORES MAPPING IN DENPASAR CITY ]]>
<![CDATA[I Made Gede Sunia Pradnyantara]]>;
<![CDATA[Dwi Putra Githa]]>;
<![CDATA[Gusti Agung Ayu Putri]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol. 22 No. 2 (2022): July ]]>
Publisher : <![CDATA[Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v22i2.119-126.
<![CDATA[Banten is a medium used in Hindu religious ceremonies and also as a medium of prayer in getting closer to Ida Sang Hyang Widhi Wasa or God Almighty. Hindus are required to be able to know the meaning and method of making a banten, but along with the development of an increasingly modern era resulting in a high level of activity in big cities, one of which is Denpasar City, this underlies the tendency of people to prefer buying banten rather than making it. because of the limited time they have. This also underlies the development of a web-based mapping information system for banten piodalan stores in the city of Denpasar. The public will find it easy to find out the mapping of the locations of Banten shops in the city of Denpasar through the system. The system is also equipped with a marketplace feature that makes it easy for the public to make transactions to buy banten piodalan they want and those who want to make transactions in selling banten piodalan.]]>
<![CDATA[FIELD EXPERIMENTATION ON WALL SURFACE TEMPERATURE WITH FABA BRICK IN HOT CONDITIONS ]]>
<![CDATA[Vira Ansari]]>;
<![CDATA[Eddy Prianto]]>;
<![CDATA[Agung Dwiyanto]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol. 22 No. 2 (2022): July ]]>
Publisher : <![CDATA[Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v22i2.198-208
<![CDATA[The processing of coal waste into building materials from fly ash bottom ash has been stipulated in Regulation number 22 of 2021 as Non-Hazardous material, with a note that the management requirements must still meet the standards and technical requirements set out and listed in the environmental document approval. Previous studiesstated that one of the physical characteristics of the use of this waste (fly ash bottom ash) can be in improving the quality of construction materials and environmental quality. The research questions of this study are: Does the facing east orientation quantitatively receiving more heat of the morning sun than other orientations? Does FABA brick walls affect the indoor thermal performance? The wall surface temperature measurement is carried out by the field experimentation with extreme climatic conditions, both sunny and rainy weather in 2021. The results of this study found that the surface temperature profile of the brick wall oriented to the east in sunny rainy/cold weather is cooler 2 % compared to the temperature on the western side. The wall surface temperature profile in the morning is 25% warmer than the ambient air temperature in sunny weather and 9% cooler in rainy weather. wall material with FABA brick proves that the orientation, location and character of the microclimate are significant to the thermal value.]]>
<![CDATA[The Analysis of the Use of Intercooler on a Multi Stage Cold Storage Simulator Toward the Compressor Work ]]>
<![CDATA[I Putu Sastra Negara]]>;
<![CDATA[Ni Ketut Rusminingsih]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol. 22 No. 2 (2022): July ]]>
Publisher : <![CDATA[Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v22i2.132-139
<![CDATA[Multistage type cold storage is a refrigeration machine required in an industry because it functions to store food products for a long time. Bali, as a world tourist destination, will rely heavily on this cooling system in preparing services for tourists, especially in the food and beverage sector. Multistage type cold storage is designed to reach the evaporator temperature below -30oC thus the used compressor performance must be able to produce maximum refrigeration effect. Two compressors placed in succession or connected in series complete this cold storage system, which is expected to achieve higher operating pressures. The temperature occurring due to the pressure increase on the second compressor will be anticipated by installing an intercooler aiming at preventing excessive heat or over heat during the compression. The extent to which the important role of the intercooler as a stabilizer of operating temperature in this cooling cycle will be shown in its working cycle with a Mollier diagram (P-h diagram). The data obtained during the operation of the multistage type cold storage is then transferred to the P-h diagram of R134A to determine the cycle diagram and the enthalpy which then determines the amount of COP, the maximum temperature achieved by the system, and its energy requirements. The calculation results obtained using the intercooler COP is 1.83, and the maximum temperature achieved is 67oC, and the energy consumption seen from the total entalphy difference due to compression work is 81 kJ/kg. Without using the intercooler, the system’s COP is 1.72 and the maximum temperature achieved is 94.9oC and 86 kJ/kg of energy consumption. The energy required for the operational becomes more eficient and the heat released to the environment is much less, therefore the multistage cold storage with intercooler can be categorized as an eco-friendly technology.]]>
<![CDATA[INNOVATION OF ADAPTIF TECHNOLOGY BASED ON INTERNET OF THINGS FOR INCLUSIVE STUDENT ]]>
<![CDATA[Ahmad Jazuly]]>;
<![CDATA[Laili Aflahkul Yaum]]>;
<![CDATA[Khusna Yulinda Udhiyanasari]]>;
<![CDATA[Renalatama Kismawiyati]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol. 22 No. 2 (2022): July ]]>
Publisher : <![CDATA[Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v22i2.134-138
<![CDATA[This paper discusses the learning system of inclusive students by adapting adaptive technology. The learning process is carried out by adjusting the curriculum and educational infrastructure. Students at the PGRI Argopuro Jember University College have 45-50 inclusion students with each batch of 2018-2020. Inclusive students (blind, deaf) experience negative stigma, mentality, difficulty understanding lessons, task completion, and communication. Inastec adaptive technology innovation based on internet of things is proposed to improve the inclusive student learning system. Learning utilizes application algorithms and hardware design schemes for the Respberry Pi 3 B+. The results of applying Inastec's adaptive technology based on the internet of things can help inclusive students in understanding theory, completing assignments, and communicating with the Inastec platform tool with text output and voice feedback on sound speakers.]]>
<![CDATA[SIMULATION DESIGN OF AUTOMATIC SLIDING GATE CONTROL DEVICES ]]>
<![CDATA[I Nengah Ludra Antara]]>;
<![CDATA[I Nyoman Sutarna]]>;
<![CDATA[Kadek Agus Mahabojana D.P.]]>;
<![CDATA[Ida Bagus Puspa Indra]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol. 22 No. 2 (2022): July ]]>
Publisher : <![CDATA[Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v22i2.140-146
<![CDATA[The gate is a means of dividing the land between the house and the road. The gate also serves for security and comfort as a place to live. As a home security, the gate is made high and equipped with a safety lock. With a gate, you will feel comfortable because other people who come can't enter the house directly, and it's often difficult or overwhelmed when opening or closing the gate. In the case of a gate that has a large size and is also heavy, this will overwhelm us so that a lot of energy and time is needed. The automatic gate control device designed is an electric motor that makes it easier for people to open or close the gate by remote control while at home or at work. Based on the results of the design that has been made, the simulation of the automatic sliding gate control device is expected to solve the problems encountered in the field where the dimensions of the gate are 1500mm x 1000mm x 80mm with a weight of 27kg, the electric motor used is reversible AC which has a speed of 1300 RPM, a power of 60 watts and a 1: 60 gearbox which has become 1 part, the speed of the electric motor is transmitted by a gear with a diameter of 78mm, so that the average gate opening and closing speed is 12.52 and 13.21s with a difference of 0.69s, with the The controller used is the AK-T02 module and the AKJ027 remote can work up to a distance of 10 m. It is hoped that making this control device simulation can be a reference in making automatic gate control devices for homes and other gates.]]>
