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All Journal MODUL MEDIA KOMUNIKASI TEKNIK SIPIL MATEMATIKA Journal of International Relations Studies Jurnal Teknik Sipil dan Perencanaan IMAJI Tesa Arsitektur Semesta Teknika Dinamika Teknik Sipil Jurnal Teknik Sipil Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Astonjadro Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ Jurnal Kebijakan Sosial Ekonomi Kelautan dan Perikanan Media Manajemen Pendidikan Jurnal Kridatama Sains dan Teknologi RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi Jurnal Ilmiah Manajemen Kesatuan Community Development Journal: Jurnal Pengabdian Masyarakat Journal of Management - Small and Medium Enterprises (SME's) Journal of the Civil Engineering Forum Jurnal Penelitian Chanos Chanos Jurnal Pengabdian Masyarakat dan Riset Pendidikan Jurnal Ilmiah Ekotrans & Erudisi (JIEE) Journal of Innovative and Creativity RADIAL: Jurnal Peradaban Sains, Rekayasa dan Teknologi
Bambang Supriyadi
Dosen Magister Teknik Arsitektur, Fakultas Teknik, Universitas Diponegoro
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Public Health Social Sciences Transportation Other

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Journal : Astonjadro

 1 
Aeroelastic Response of a Cable-Stayed Bridge Deck with Various Fairing Shape Models (Case Study of Suramadu Bridge) H, I Gede Agung Shri Parta; Supriyadi, Bambang; Triwiyono, Andreas
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.18400

Abstract

Aerodynamic phenomena poses risks for long-span cable-stayed bridge structures, nevertheless, the prevention method is often neglected on older bridges. The effort to reduce the risk and increase the aerodynamic performance of cable-stayed bridges mostly focuses on design and construction stages. This study attempts to improve aerodynamic performance by mitigating the aeroelastic heaving response of an existing bridge structure chosen as the subject, Suramadu Bridge. The approach is made by exploring different options applicable to already built bridges, such as the addition of fairings with varying shapes to modify the shape model of the bridge deck while maintaining the value of vertical and torsional stiffness. The study finds that there is relatively no increase in the lowest margin of critical vortex velocity of the bridge deck with fairing addition compared to the original bridge deck. The amplitude of oscillation caused by aerodynamic lift force is also fairly low since critical vortex velocity occurs in the range of 9.35-9.38 m/s. Upon increasing wind velocity up to the design wind speed of 37.8 m/s, there are significant differences in lift force and amplitude of oscillations. The shape model with the steepest fairing shows a significant decrease in amplitude, up to 35.6% lower than the original bridge deck, indicating a better aerodynamic stability. Meanwhile, the other two shape models show identical and higher amplitude compared to the original bridge deck.
Risk Analysis of Steel Railway Bridges Based on Rating Factor, Earthquake, and Importance Factor Prasetyo, Aulia Azis; Triwiyono, Andreas; Supriyadi, Bambang
ASTONJADRO Vol. 14 No. 4 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i4.19038

Abstract

Railway bridges are critical infrastructure components that are essential to support and maintain the integrity of major rail transportation networks. Indonesia is located in a tectonic zone known as the Ring of Fire. Risk assessment of these bridges is critical. This research not only considers the physical condition or vulnerability of the bridge itself but also the risk posed by earthquakes and the level of importance of the bridge. The research was conducted on 4 bridges located in East Java Province, namely the BH-129, BH-262, BH-275, and BH-314 Bridges. The rating factor, hazard level, and importance factor influence the risk level. The assessment process starts by using the Bridge Management System (BMS) method and Structure Analysis Program (SAP2000) to assist in calculating the Rating factor. Determining the level of danger by referring to the Earthquake Hazards Map and the Indonesian Earthquake Code (SNI 2833: 2016), The importance is taken based on the level of operational importance of the bridge referring to the same standard. The results show that the four bridges have the same risk value of 0.7809 for each bridge. The results underscore the urgent need for proactive measures to reduce the potential adverse impacts of bridge structure failure. Recommended interventions include strengthening structural elements, increasing inspection frequency, improving maintenance protocols, and, if necessary, replacing compromised structures. These strategies are critical due to the high risk and significant impact on rail safety and operations, especially in areas prone to natural disasters. The results of this study reinforce the urgency of improving the resilience of bridge infrastructure to earthquake threats to maintain the stability and safety of rail transportation in Indonesia.
Co-Authors Ahmad Muhajir, Ahmad Ali Awaludin Amalia Alifiani, Amalia Amalia, Alifiani, Amalia, Aminullah, Akhmad Andi Asrul Sani, Andi Asrul Andreas Triwiyono Anggono Ariebowo, Anggono Arief Fadhilah Astalis Ulul Absor, Didib Atiek Suprapti Atin Supriatin, Atin bambang adji Bambang Adji Murtomo Bambang Irawanto Bayu Sasongko Carera, Adela Darmajaya, Theo Alfaro Dida Diaz Priantara dimas Rachmaputra Djoko Sulistyo Eddy Prianto Edward Endriarto Pandelaki, Edward Endriarto Ergiyanti, Kharisma Erni Setyowati Faisal Nufus, Faisal Fajriyan Saiful, Fajriyan Fathurrahman Fathurrahman Fauzannur, Fauzannur Fitri Rachmawati Gagoek Hardiman H, I Gede Agung Shri Parta Hendro Trilistyo Hermin Werdiningsih Hermini Susiatiningsih indah dwi Jantu, Mochamad Athar Jefri Putri Nugraha Kustiandika, Salsabila Mahargyo, Dhady Pelita Making, Maria Yasinta Menge Muda, Johanes B Muslikh Muslikh Nadia Farabi, Nadia Nugraha, Jefry Putri Prasetyo, Aulia Azis Prayoto Prayoto Prayoto Priono, Bowo Purba, Luki Hariando Purbonuswanto, Welius R Siti Rukayah Rahardjo, R. Sugeng Rahardjo, Sugeng riska arrasy Safinta Rhosa Fajari, Safinta Rhosa Sasongko, Dimas Bayu Simanjuntak, Salomo Sri Wartini sukawi sukawi Suprapto Siswosukarto Surahmat, Djoko Suseno, Dewi Alima Nostalia Timur, Dya Ayu Cahya Titien Woro Murtini Umi Khoiroh, Umi Waluyo, Buyung Purnomo Widyastuti, Rida Wijayanti Wijayanti Wiku Adhiwicaksana Krasna Yushardi Yushardi, Yushardi