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All Journal Inersia : Jurnal Teknik Sipil dan Arsitektur Jurnal Ilmiah Teknik Sipil International Journal of Science and Engineering (IJSE) TEKNIK MEDIA KOMUNIKASI TEKNIK SIPIL JURNAL KARYA TEKNIK SIPIL Rekayasa Sipil Journal of Regional and City Planning Jurnal Teknik Sipil Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Teras Jurnal Potensi : Jurnal Sipil Politeknik Civil Engineering Dimension JTERA (Jurnal Teknologi Rekayasa) SIKLUS: Jurnal Teknik Sipil Journal of Architectural Design and Urbanism METIK JURNAL JATI (Jurnal Mahasiswa Teknik Informatika) Arcitech: Journal of Computer Science and Artificial Intelligence
Nuroji Nuroji
Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro Semarang
Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Transportation

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Pengekang Crossties di Zona Tekan Balok dengan Pembebanan Siklik Yulita Arni Priastiwi; Iswandi Imran; Nuroji Nuroji; Arif Hidayat
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 24, Nomor 2, DESEMBER 2018
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (973.852 KB) | DOI: 10.14710/mkts.v24i2.18980

Abstract

Crossties that was installed as a confinement in the compression zone of the beam is proven can increase the ductility, especially when receiving the earthquake load. Using an experimental study, this paper  explains  the effect of crossties which was installed in compression zone of the beam. The model was a simplification of the plastic hinge of the beam. The beam was enlarged in the center of the span and would be loaded with a cyclic of point load, so as to produced the largest moment and shear fields in the face beam of the column. Moreover, the loading was provided by the displacement control system to achieve the ultimate condition. The results show that the crossties significantly increases the displacement and curvature ductility of the beams of 58.7% and 78.2%, respectively, compared to the beam without confinement. In addition, the load cycle formed by cyclic loading increases to 43 cycles in beam with crossties, meanwhile the beam without confinement can only survive up to 33 cycles. The crossties could also increase the cumulative value of inelastic displacement that occurs up to 98%, whereas its  energy dissipation value is six times than the beam without confinement. On the other hand, the maximum load and capacity moment only increase about 6.5%.
ANALISIS WAKTU SIKLUS PENGECORAN LANTAI GEDUNG BERTINGKAT Ujang Ruslan; Nuroji; Windu Partono
Potensi: Jurnal Sipil Politeknik Vol 15 No 1 (2013): Potensi: Jurnal Sipil Politeknik
Publisher : Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/potensi.v15i1.4754

Abstract

Pada pelaksanaan struktur atas bangunan gedung bertingkat dengan beton yang dicor di tempat, diperlukan bekisting dan perancah yang bertingkat-tingkat untuk memenuhi aspek kecepatan siklus konstruksi. Dalam menentukan waktu siklus pengecoran lantai pada gedung bertingkat ini, digunakan metode analisis. Dalam analisis waktu siklus pengecoran lantai ini, bekisting dan perancah dimodelkan dengan menggunakan dua dan tiga tingkat lantai. Struktur bangunan gedung bertingkat yang ditinjau adalah bangunan standar dengan panjang bentang antar kolom maksimum 8 meter, dan campuran beton menggunakan beton normal tanpa bahan tambah. Berdasarkan hasil kajian menunjukan bahwa penerapan waktu siklus pengecoran lantai dengan bekisting dan perancah dua tingkat lantai, dimulai dari 10 hari pada saat lantai "i - 2" telah berumur 20 hari. Sementara dengan bekisting dan perancah tiga tingkat lantai, waktu siklus pengecoran lantai dimulai dari 6 hari pada saat lantai "i - 3" telah berumur 18 hari.
Evaluasi dan Analisis Struktur Beton pada Jembatan Kalikuto di Ruas Jalan Tol Batang Semarang Indriyantho, Bobby Rio; Susanty, Aries; Sumardi, Sumardi; Nuroji, Nuroji
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 29, Nomor 1, JULI 2023
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v29i1.54785

Abstract

Kekuatan struktur suatu jembatan menjadi faktor yang sangat penting untuk keamanan dan keselamatan pengendara terutama di ruas jalan tol. Pemeriksaan secara berkala terhadap kesehatan bangunan jembatan perlu dilakukan, salah satunya evaluasi terhadap struktur beton eksisting. Penelitian ini mengevaluasi dan menganalisis struktur beton pada Jembatan Kalikuto yang merupakan bagian dari Jalan Tol Batang Semarang. Kombinasi dari destructive dan non-destructive test (DT dan NDT) seperti pemetaan kekuatan beton menggunakan core drill dan hammer test, kualitas kepadatan beton menggunakan Ultrasonic Pulse Velocity (UPV), serta konfigurasi tulangan di dalam beton menggunakan rebar scanner. Sementara itu, karbonasi dan korosi terhadap material beton juga dilakukan evaluasi. Kekuatan tarik beton terhadap cabut angkur juga dianalisis menggunakan software metode elemen hingga. Secara keseluruhan, kondisi struktur Jembatan Kalikuto masih sangat baik dioperasikan untuk jalur transportasi darat hingga masa layan bangunan rencana, yaitu kuat tekan sesuai dengan spesifikasi, kepadatan beton berkisar antara 4356,67 – 5275,33 m/s, konfigurasi tulangan sesuai dengan as built drawing, tidak terjadi karbonasi dan lebih 90% struktur tidak menunjukkan indikasi korosi. Cabut angkur diprediksi tidak akan terjadi karena gaya tarik tidak melampaui hasil simulasi. Perawatan secara berkala diperlukan untuk menghindari struktur jembatan dari hal-hal yang dapat menurunkan kekuatan betonnya.
PERANCANGAN PEMANTAUAN BANJIR REALTIME BERBASIS INTERNET OF THING MENGUNAKAN ESP 32 TERINTERGRASI THINGSPEAK DAN NOTIFIKASI BOT TELEGRAM PADA BENDUNGAN KRAMAT JATI Fadillah, Bagas; Nuroji, Nuroji
JATI (Jurnal Mahasiswa Teknik Informatika) Vol. 9 No. 2 (2025): JATI Vol. 9 No. 2
Publisher : Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/jati.v9i2.13254

Abstract

Banjir sering terjadi di wilayah Kramat Jati, Jakarta Timur, akibat kurangnya sistem deteksi dini. Penelitian ini merancang sistem pemantauan banjir berbasis Internet of Things (IoT) menggunakan ESP32 dan platform ThingSpeak. Sistem ini memanfaatkan sensor ultrasonik dan water level untuk memantau ketinggian air secara real-time, dengan data disimpan di database dan ditampilkan melalui dashboard ThingSpeak. Metode prototyping digunakan dalam perancangan dan pengujian sistem. Hasil pengujian menunjukkan bahwa sistem mampu memberikan peringatan status aman, waspada, dan banjir dengan akurasi 80%. Sistem ini diharapkan dapat meningkatkan efisiensi mitigasi risiko banjir.
Finite Element Analysis of The Effect of Fiber Content on The Flexural Strength of SFRC Beams with Steel Rebars Ilham Nurhuda; Blinka Hernawan Prasetya; Nuroji Nuroji; Yulita Arni Priastiwi
Civil Engineering Dimension Vol. 26 No. 2 (2024): SEPTEMBER 2024
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.26.2.101-110

Abstract

This research aimed at studying the effect of fiber content on the flexural strength and behavior of steel fiber reinforced concrete (SFRC) beams with steel rebars. The study employed finite element (FE) analysis to simulate the behavior of SFRC beams. The simulation results of the FE model were validated against experimental data. Subsequently, the validated model was utilized to analyze the strength and crack patterns of SFRC beams with steel rebars in comparison to conventional RC concrete beams without fibers. The parametric study indicates an average 9% increase in RC beam capacity for every 1% increment in fiber volume fraction. Moreover, this study reveals more substantial effects of steel fibers on beams with low reinforcement ratios. Crack analysis shows that cracks in the SFRC beams are distributed more evenly compared to plain RC beams at regions with the same bending moment, indicating enhanced strength to sustain loads, reduced deflection, and improved beam ductility.
Sistem Sirkulasi dan Keamanan Buku pada Perpustakaan Menggunakan Radio-Frequency IDentification berbasis IoT via WhatsApp Harlian Navi; Nuroji
Arcitech: Journal of Computer Science and Artificial Intelligence Vol. 5 No. 1 (2025): June 2025
Publisher : Institut Agama Islam Negeri (IAIN) Curup

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29240/arcitech.v5i1.13337

Abstract

The book lending process in conventional libraries is still done manually, causing queues, data input errors, and lack of operational efficiency. This technology relies on desktop or web-based digital systems, without integrating IoT technology and real-time communication. Therefore, this research proposes the development of an Internet of Things (IoT)-based book lending system integrated with WhatsApp API and RFID system to improve circulation efficiency and book security. This research uses the prototyping method so that development can be adjusted iteratively to user needs. The system was tested using the black-box testing method and showed a 100% success rate in all test scenarios. This research is an application of the integration of IoT and instant messaging platforms in the context of library management, which has not been widely raised in previous studies, and produces a prototype that is applicable to the scale of educational institutions.
Perancangan Teknologi Radio Frequency Identification Dalam Sistem Presensi Peserta Didik Berbasis Internet of Things di Sekolah Menegah Pertama Sejahtera 2 Cileungsi Yusuf Widsono, Maulana; Nuroji
Arcitech: Journal of Computer Science and Artificial Intelligence Vol. 5 No. 1 (2025): June 2025
Publisher : Institut Agama Islam Negeri (IAIN) Curup

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29240/arcitech.v5i1.13968

Abstract

The manual student attendance system at SMP Sejahtera 2 Cileungsi presents several inefficiencies, such as susceptibility to recording errors, time-consuming procedures, and difficulties in accurately summarizing attendance data. Previous studies have proposed RFID and IoT-based systems to improve efficiency, yet most lack features for real-time parental notification. This study aims to develop an automated student attendance system using Radio Frequency Identification (RFID) integrated with the Internet of Things (IoT) and a Telegram bot for immediate communication with parents. The system was developed using the prototyping method, allowing for iterative refinement based on user needs. Attendance is recorded through RFID cards tapped on a reader device, with data stored in a database and exportable to PDF and Excel formats. Black box testing was conducted to validate system functionality. The results indicate that the system enhances accuracy, efficiency, and parental involvement by providing real-time updates. This research contributes to smart education technology by offering a scalable and interactive attendance model that supports administrative digital transformation in schools.
Analisis Sentimen Pengguna Aplikasi Byond BSI Pada Google Play Store Menggunakan Algoritma SVM Dan Random Forest Firzatullah, Firdaus Naifah; Nuroji, Nuroji
METIK JURNAL (AKREDITASI SINTA 3) Vol. 9 No. 2 (2025): METIK Jurnal
Publisher : LPPM Universitas Mulia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47002/6vtc4567

Abstract

The development of digital technology has encouraged banks to provide application-based financial services, one of which is BYOND by BSI, which carries the concept of Islamic banking. However, various technical obstacles such as service disruptions and application errors in using this application have caused dissatisfaction among users. Therefore, sentiment analysis is needed to understand user responses comprehensively. This study aims to classify user sentiment towards the BYOND by BSI application by utilizing the Support Vector Machine (SVM) and Random Forest algorithms. The data used are 35,000 user reviews collected from the Google Play Store through crawling techniques, then automatically labeled using a rule-based method based on rating values. The analysis process was carried out using the SEMMA approach, which includes the stages of text cleaning, word weighting using TF-IDF, and dividing the data into 80% training data and 20% test data. The test results showed that the SVM algorithm had the best performance with an accuracy of 93.16%, while Random Forest obtained an accuracy of 90.33%. The majority of the analyzed reviews showed negative sentiment. These findings are expected to provide input in improving the quality of the BYOND by BSI application service.
Perancangan Sistem Presensi Wajah (SIWAJA) Berbasis Internet of Things dengan Notifikasi Telegram Muhammad Bagas Adi Pangestu; Nuroji, Nuroji
METIK JURNAL (AKREDITASI SINTA 3) Vol. 9 No. 2 (2025): METIK Jurnal
Publisher : LPPM Universitas Mulia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47002/88ctdw53

Abstract

Manual student attendance administration is prone to human error, inefficient, and hinders communication between schools and parents. This study aims to develop the Face Presence System (SIWAJA), an innovative solution integrating face recognition technology and the Internet of Things (IoT) to provide live attendance notifications to parents via Telegram. A key technological advantage of this system is the implementation of the YOLOv8 algorithm, which is emphasized for its high precision in face detection. The development method used is the prototype model, which includes stages of requirements identification, design, implementation, and evaluation. The system was built using an Orange Pi 5 Pro, the Python programming language with the OpenCV library, and the YOLOv8 algorithm for face detection. The research results show that the SIWAJA system was successfully developed and functions as expected, where the IoT-based design supports potential scalability for broader implementation. Black Box Testing validated all main functionalities, from presence-taking to notification delivery. The face detection model showed highly reliable performance with a precision (P) value of 0.97, recall (R) of 0.99, and mAP@.5 of 0.99. In conclusion, SIWAJA proves to be an effective and accurate solution for modernizing student attendance management and enhancing real-time parental involvement, offering significant contributions to the application of IoT in education.
Co-Authors Adhyta Narendra Winarno Afdholi Afdholi Aktorina, Wahyu Alfred Nobel Pakpaham Andika Yudha P Antonius Antonius Aria Wirawan Aries Susanty Arif Hidayat Asshidiqie, Muhammad Rony Ay Lie Han Bagas Indra Cahyo Bagus Hario Setiadji Bambang Riyanto Bambang Riyanto Bernard Bayu Baskoro Blinka Hernawan Prasetya Bobby Rio Indriyantho Budi Wicaksono Daniel Erlanda David Mulyawan Prayogo Dea Nika Alvianti Erika Yulianti Fadillah, Bagas Firzatullah, Firdaus Naifah Gagoek Hardiman Hadi Wibowo Han Ay Lie Hardi Wibowo Harlian Navi Hery Suliantoro Himawan Indarto Ilham Nurhuda Ilham Nurhuda Iswandi Imran Jumani Arso Livian Teddy M Agung Wibowo Mardani Rizki Anggoro Mohamad Sahari Besari Mohamad Sahari Besari, Mohamad Sahari Monica Devi Muhammad Akhis Thoyfurrohman Muhammad Amin Cakrawijaya Muhammad Amin Cakrawijaya Muhammad Bagas Adi Pangestu Nicolaus Iyowau Novia Puspitarini, Novia Purwanto Purwanto Putra, Ryan Dwiyana Rahma Nindya Ayu Hapsari Rangga Maulana Rohman, Muhamad Arif Rudi Yuniarto Adi Sahari Besari Sie Alexander Patrick Subagyo Sri Rejeki Laku Utami Sri Tudjono Sri Tudjono Sukamta Sukamta Sumardi . Sumirin Sumirin Sumirin Sumirin Supriyadi Supriyadi Ujang Ruslan Vanessa Nurmalita Windu Partono Windu Partono Wirajati Ramadhianto, Wirajati Yulita Arni Priastiwi Yusuf Widsono, Maulana