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Jurnal Ilmiah Poli Rekayasa
Published by Politeknik Negeri Padang
ISSN : 18583709     EISSN : 26853922     DOI : 10.30630/jipr
Core Subject : Education,
Education
Jurnal Ilmiah Poli Rekayasa adalah jurnal ilmiah yang diterbitkan 2 edisi dalam setahun, bulan April dan Oktober. Terbit sejak tahun 2005. Fokus Kajian jurnal ini adalah Fokus kajian artikel dalam JPR mencakup Mechanical Engineering, Civil Engineering, dan Electronica, Electricty dan Telecomunication EngineeringLingkup Jurnal Ilmiah Poli Rekayasa meliputi : 1) Energi terbarukan (rewnable energy), 2) Inovasi kendaran bermotor hemat BBM, 3) Material Maju, 4) Emisi dan pembakaran motor bakar, 5) Rekayasa termal dan fluida, 6) Rekayasa power plant, 7)Material komposit, 8) Biomaterial, 9)Teknologi pengujian tak merusak (Non Distruction Test/NDT), 10) Kontrol dan mekatronika, 11) Planing untuk pengurangan resiko bencana, 12) Sistem transportasi antar moda, 13) Rekayasa konstruksi, bangunan, jembatan dan Jalan, 14) Manajemen daerah aliran sungai, air tanah, sedimen dan waduk, 15) Remote Sensing Harap baca panduan ini dengan seksama. Penulis yang ingin mengirimkan artikel ke Jurnal Ilmiah Poli Rekayasa, harus mengikuti panduan penulisan. Jika artikel yang dikirim tidak sesuai dengan panduan penulisan atau ditulis dalam format yang berbeda, maka akan DITOLAK oleh editor sebelum ditinjau lebih lanjut. Para editor hanya menerima artikel yang memenuhi format yang ditetapkan. Artikel ditulis dalam bahasa indonesia. Jurnal Ilmiah Poli Rekayasa menggunakan prosedur penilaian Double Blind. Dimana antara penulis dengan mitra bestari tidak saling mengenal identitasnya masing-masing. Silahkan kirimkan artikel anda dan untuk unduh Template DI SINI Etika Publikasi dapat dilihat pada tautan berikut ini : ETIKA PUBLIKASI.
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Search results for , issue "Vol 20, No 2 (2025): April" : 10 Documents clear
ANALISA KEGAGALAN KONTRAKTOR DALAM PROSES TENDER DI KOTA PADANG Fetriani, Micky; Novitasari, Lilis; Vernando, Vero Gusri
Jurnal Ilmiah Poli Rekayasa Vol 20, No 2 (2025): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.20.2.387

Abstract

Kontraktor merupakan penyedia jasa yang akan mengerjakan suatu proyek kontruksi. Proyek kontruksi dilaksanakan melalui sistem terder secara elektonik dimana pada proses tersebut banyak kontraktor gagal karena kesalahan yang dibuatnya. Penyebab - penyebab kegagalan kontraktor dalam proses tender didapat dari beberapa literature dan hasil penelitian terdahulu meliputi lima faktor yaitu; aspek administrasi (X1), aspek teknis (X2), aspek harga (X3), aspek klarifikasi (X4) dan aspek lainnya (X5). Berbagai penyebab kegagalan kontraktor ini perlu diteliti agar dapat mengantisipasi kegagalan yang terjadi pada tender selanjutnya. Oleh karena itu dilakukan penelitian untuk mengindentifikasi faktor-faktor yang mempengaruhi kegagalan kontraktor dalam proses tender dengan sistem elektronik. Penelitian ini dilaksanakan di Kota Padang pada paket pekerjaan tahun 2024 dengan responden adalah kontraktor yang telah mengikuti tender secara elektronik pada situs lpse kota padang. Analisa ini menggunakan analisa kuantitatif dengan teknik pengumpulan data yang digunakan yaitu kuisioner dengan memakai instrument Skala linkert 1-5. Setelah dilakukan analisa maka didapatkan faktor paling dominan yang sering menjadi penyebab kegagalan kontrktor dalam proses tender di kota padang adalah X2.2 dukungan material dari suplier tidak ada atau salah dengan hasil mean 4,28 dan standart deviasi 0,980.
STUDI EKSPERIMENTAL PENGARUH FLY ASH DAN SERAT KELAPA PADA BETON UNTUK PERKERASAN KAKU Suhelmidawati, Etri; Guspari, Oni; Hidayati, Rahmi; Rahmadani, Putri; Prima, Razaq
Jurnal Ilmiah Poli Rekayasa Vol 20, No 2 (2025): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.20.2.388

Abstract

Concrete structures are very vulnerable to cracking due to the brittle nature of the material and strong against pressure, but weak against tension. Meanwhile, green technology and sustainable materal are popular nowadays due to global warming issues. Therefore, subtituting  material in concrete which are come from waste disposal are used in this research. Waste materials as a substitute for aggregate in concrete is currently increasing as the demand of green technology. In this research, the waste material used are fly ash and coconut fiber. Fly Ash as the replacement of cement from PLTU of Teluk Sirih and coconut fiber from Padang Pariaman will be studied. The aim of this research was to find out the effect of using Fly Ash and coconut fiber on the compressive strength and flexural strength of concrete. For the use of fiber, soaking will be carried out using NaOh which will affect the wettability angle of the fiber. The experimental method was used in this study, while the tests carried out included material testing, compressive strength test and flexural strength test. Tests carried out refer to the American Standard Testing and Materials (ASTM). Mix design were investigated based on ACI 211 4R-93 for High Strength Concrete. Based on the experimental results, the highest value of compressive strength test was attained in the 4th concrete variation with a concrete mixture of 15% Fly Ash + 1% Coconut Fiber + Sika Viscocrete with a value of 32.1 MPa and the flexural strength value as of 5.3 Mpa.
ANALISIS PENGARUH GAYA GEMPA TIDAK SERAGAM TERHADAP RESPONS STRUKTUR JEMBATAN GANTUNG Sari, Putri Kumala; Fransiska, Yolla
Jurnal Ilmiah Poli Rekayasa Vol 20, No 2 (2025): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.20.2.393

Abstract

Bridges are essential infrastructures that serve to connect two regions separated by various geographical conditions. Among the various types of bridges, suspension bridges are commonly used for long-span applications. The main structural components of a suspension bridge consist of the main cables and vertical suspenders. Due to their long spans, suspension bridges are susceptible to differential ground motions at each support, which may arise from varying soil conditions—this phenomenon is referred to as multi-support excitation. In this study, three types of analyses were conducted: static analysis, dynamic analysis under longitudinal seismic excitation, and dynamic analysis under transverse seismic excitation, using MIDAS Civil software. The soil conditions applied in all three analyses were assumed to be stiff soil at the left support and soft soil at the right support. The structural responses observed include internal forces and displacements. The seismic loads were defined using the time history method. The time history records were derived from the conversion of response spectra for the Bukittinggi region, considering both stiff and soft soil conditions. The results indicate that, in both longitudinal and transverse dynamic seismic analyses, the highest internal force values predominantly occurred at the support located in the soft soil area, except for moment values, which reached their maximum at the support in the stiff soil area. The maximum Dynamic Amplification Factor (DAF) in the longitudinal direction of the girder occurred at an element located at 0,25 of the span length on the right side, with a value of 2,621.
SIMULASI REMOTE CONTROL PADA MESIN PENGUMPUL SAMPAH MENGGUNAKAN ARDUINO NANO BERBASIS MODUL KOMUNIKASI LORA Vitria, Rikki; Adli, Arif Rafid; Firdaus, Firdaus
Jurnal Ilmiah Poli Rekayasa Vol 20, No 2 (2025): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.20.2.384

Abstract

This research aims to develop a remote control system for waste collection machines using Arduino Nano and LoRa communication modules. The background of this research is the need for an effective remote control system to manage waste collection machines automatically. This system is designed to optimize the machine control process through stable wireless communication. The research process begins with system design, including block diagrams and flowcharts for remote control transmitters and receivers. The transmitter uses an Arduino Nano to read input from the button and send data via the LoRa module. The receiver receives signals from the transmitter, then controls the motor using the L298N motor driver module based on the data received. The research results show that the system can control the motorbike accurately according to the signals received, including forward, backward, right turn and left turn movements. The system is also capable of handling button combinations for more complex motor control. The use of Fritzing and Visual Studio Code in the design and programming process makes system implementation and testing easier. This research provides a practical solution for remotely controlling waste collection machines with LoRa communication.
SIMULASI HIDROLOGI SISTEM DRAINASE KAWASAN JATI KOTA PADANG MENGGUNAKAN HEC-HMS Fransiska, Yolla; Sari, Putri Kumala
Jurnal Ilmiah Poli Rekayasa Vol 20, No 2 (2025): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.20.2.389

Abstract

The Jati Area in Padang City is one of the urban regions affected by flooding and waterlogging, particularly during the rainy season. The flooding issue in this area is not only caused by the insufficient capacity of the drainage channels but also by the lack of understanding regarding the hydrological characteristics of the region. Therefore, a hydrologically based modeling approach is essential to analyze and predict the response of the catchment area to rainfall, surface runoff discharge, and the effectiveness of the existing drainage system. In this study, the author models the drainage system in the Jati area using the HEC-HMS program, with the aim of obtaining the peak discharge value during extreme rainfall events and determining the timing of the maximum discharge. HEC-HMS is a widely used software for hydrologic modeling, particularly for simulating the runoff process from a watershed area. The research consists of three main stages: data collection, data processing, and drawing conclusions from the results. Based on the simulation results of the hydrologic modeling analysis of the drainage network in the Jati area, it was found that the channels at certain nodes are unable to accommodate the design discharge load, resulting in flooding due to the insufficient capacity of those channels. The results of this study can be used by policymakers for the redesign of drainage infrastructure, such as modifying the channel dimensions from a base width of 6.5 m, 6.8 m, and 6.8 m at reach 9, reach 10, and reach 11 respectively, to 8.5 m based on the peak discharge from the simulation results, which is 37.5 m³/s.
STUDI NILAI TRANSFER PANAS KESELURUHAN PADA SELUBUNG BANGUNAN PUSAT KEGIATAN MAHASISWA Efiariza, Restika Rahmadona; Hikmah, Nurul; Christy Damanik, Novita Hillary; Ayutia, Galuh Talitha
Jurnal Ilmiah Poli Rekayasa Vol 20, No 2 (2025): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.20.2.395

Abstract

The building envelope plays a crucial role in controlling heat transfer from the outside environment to the interior of the building, which in turn affects occupant comfort and building energy consumption. This study aims to determine the existing Overall Thermal Transfer Value (OTTV) of the Student Activity Center of Universitas Indonesia (PUSGIWA UI) building, as per the applicable Indonesian National Standard (SNI). As well as providing optimization solutions to obtain OTTV values that comply with the Indonesian national standards. The OTTV calculation results of the PUSGIWA UI building show a value of 37.80 W/m², which exceeds the SNI standard limit of 35 W/m². This indicates that the building envelope at PUSGIWA UI is not yet effective in protecting and maintaining the thermal comfort conditions within the building environment. The highest OTTV value is found on the north orientation side of the building, at 42.77 W/m². As optimization, it is recommended to replace the glass section with Asahimas Sunergy Clear glass, which has a low reflection value and better solar energy shading capability compared to the existing glass. The application of this glass can reduce the OTTV value to 28.96 W/m², which already meets the thermal comfort standards of a building. This study contributes to the planning of more environmentally friendly building envelope designs and energy efficiency.
EVALUASI LENDUTAN BALOK BETON BERTULANG DENGAN PENDEKATAN MATEMATIS: PENERAPAN TEORI EULER–BERNOULLI TERHADAP BATAS KEMAMPUAN LAYAN Permata, Sherly
Jurnal Ilmiah Poli Rekayasa Vol 20, No 2 (2025): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.20.2.392

Abstract

Accurate prediction of beam deflection is crucial in civil engineering structural design, ensuring both safety and functionality. This study investigates how the physical and material properties of a beam relate to the maximum deflection under various loading conditions. We used an analytical approach, applying classic deflection equations derived from Euler-Bernoulli beam theory, which assumes linear elasticity and small deformations. Our case study features a simply supported beam with a 4000 mm span. It's made of concrete with a 30 MPa compressive strength and reinforced with steel having a 390 MPa yield strength. The analysis includes common loading scenarios like concentrated and uniformly distributed loads to evaluate their impact on deflection. The calculations show a maximum deflection of 18.78 mm, which exceeds the allowable limit of 14.17 mm set by SNI 2847:2019. This study demonstrates that mathematical models reliably estimate structural behavior and are effective for design decision-making. These findings highlight the importance of analytical proficiency in structural engineering, especially during initial design and assessment phases. Integrating theoretical models with practical data improves the accuracy of structural analysis, contributing to safer and more efficient construction practices.
EFISIENSI ESKALASI JARINGAN IRIGASI MELALUI PROGRAM PERCEPATAN PENINGKATAN TATA GUNA AIR IRIGASI (P3-TGAI) DI KOTA SOLOK Fernando, Rangga; Araska, Wahyu; Rianda, Hasbi
Jurnal Ilmiah Poli Rekayasa Vol 20, No 2 (2025): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.20.2.403

Abstract

The city of Solok, which is located in West Sumatra, with a population of 81,059 people, has limited agricultural land of 875.6 hectares and produces 5,430 tons of rice, which has experienced a decline in rice production since 2019. This decline in rice production was caused by irrigation constraints, which prompted the government to implement the Acceleration Program for Irrigation Water Use Improvement/P3TGAI to improve the irrigation network which involves community participation, in this case the Water User Farmers Association (P3A). This research compares the efficiency of cost planning and budgeting for irrigation improvements in the Bdr Lembang irrigation area using the Unit Price Analysis (AHSP) approach. Data collected includes primary and secondary surveys, with a focus on existing irrigation conditions. The results showed that there are 5 determinants of the success of the self-management project for P3-TGAI, such as good communication between parties involved in the project (95.95); appropriate/appropriate work planning (91.89); monitoring of the project by the parties involved (89.19); ability to solve project problems by the parties involved (83.78); proper cost management by the parties involved (83.78). Then, there are 10 aspects that determine the success of P3-TGAI self-management projects, these factors are formed from the highest index in each aspect surveyed. analysis show the difference between the implementation of self-management and contracting in the use of materials and personnel because the volume of the channel length in self-managed work is 368 meters, whereas if it is contractual the channel length volume is 345.32 meters. Thus highlighting the need for effective resource management in irrigation projects.
ANALISA KEKUATAN RANGKA PADA DESAIN MESIN PENGAYAK PASIR ROTARI KAPASITAS 10 KG MENGGUNAKAN SIMULASI SOLIDWORK nalahuddin, Muchlisi; Ihsan, Ainul; Kudus Susalam, Malikil
Jurnal Ilmiah Poli Rekayasa Vol 20, No 2 (2025): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.20.2.382

Abstract

This research discusses the analysis of the rotary system sand sieving machine frame with a capacity of 10 kg using Solidworks 2018 with the Finite Element Analysis (FEA) Method. This research aims to overcome manual problems in the sand sieving process in building construction by developing an efficient and reliable automatic machine. Technology is identified as a basic need of modern society because of its ability to increase efficiency and productivity in various activities. Sand, as an important construction material, must be sieved from rocks and gravel before use. Current manual sieving processes require a lot of effort and time, prompting the need for automated solutions such as the rotary sand sieving machine designed in this research. Machine design focuses on frame strength as the main component that supports operational loads. The frame strength analysis was carried out using Solidworks 2018 with the FEA method to ensure its safety and resistance to a load of 10 kg. The analysis results show that the machine frame can bear operational loads well. The maximum stress that occurs in the frame is 9.248 N/m2, far below the yield strength of the material used. The maximum deformation (displacement) that occurred was 1,058 mm, mainly concentrated in the critical areas analyzed. Safety factor analysis shows that the frame meets safety standards with a safety factor of 2.7, exceeding the expected value for construction industry applications
ANALISIS TEKNO-EKONOMI KINERJA PEMBANGKIT LISTRIK TENAGA SURYA UNTUK FASILITAS PUBLIK DI KAWASAN WISATA PUNCAK LABUANG Pribadi, Rizki Aditio; Fitriadi, Fitriadi; Asrul, Junaidi; Firmansyah, Firmansyah; Herisajani, Herisajani; Yuhaidizen, Yuhaidizen
Jurnal Ilmiah Poli Rekayasa Vol 20, No 2 (2025): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.20.2.406

Abstract

This article discusses the performance analysis of solar power plants for public facilities reviewed from a techno-economic perspective using the Homer application. The research location in this article is the public facility of Surau Nur Jannah in the Puncak Labuang Limau Manis Tourism Area, Padang City. Based on field visits, the community conveyed the limited resources related to the development of the tourism area, one of which is the availability of electrical energy. Based on the problems conveyed by the community, Padang State Polytechnic through the Department of Electrical Engineering provides a solution to the problem of limited electrical energy sources, by offering the concept of Renewable Energy. The initial stage of providing electrical energy sources is to build an Off-Grid Solar Power Plant with a capacity of 240 WP. In order to support the construction of the Solar Power Plant at the specified location, it is necessary to conduct a performance and economic analysis of the development. This location has a fairly large potential for solar resources, on average in one year this place receives solar radiation of 4.91 kWh/m3/Day. The most optimal configuration from the simulation results is a combined system, two units of 1 kW Generic Photovoltaic, Converter, Storage / Battery. The production of electrical energy with this configuration obtains 39.6 kWh/year of electricity with a total consumption in one year of 29.2 kWh/year. The results of the analysis of the power plant's performance from a techno-economic aspect provide positive results, with a Cost Of Energy (COE) of Rp. 1,095.34/kWh. This article aims to provide an understanding of the construction of small-scale power plants for public facilities with minimum costs

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