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All Journal Journal of Advanced Civil and Environmental Engineering BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Media Ilmiah Teknik Sipil Jurnal Pengabdian Masyarakat Borneo Pawon: Jurnal Arsitektur Jurnal Teknik Sipil Cendekia (JTSC) PARENTAS: Jurnal Mahasiswa Pendidikan Teknologi dan Kejuruan PROFICIO: Jurnal Pengabdian Masyarakat Jurnal Talenta Sipil Jurnal Informatika Teknologi dan Sains (Jinteks) Daktilitas Jurnal Teknik Sipil Macca Jurnal Spesialis Teknik Sipil (JSpTS) The Journal of Enhanced Studies in Informatics and Computer Applications
Hadi Surya Wibawanto Sunarwadi
Institut Teknologi Nasional Malang
Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Social Sciences Transportation Other

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Studi Perbandingan Pengaruh Variasi Bentuk Lengkung terhadap Stabilitas Struktur Jembatan Pelengkung: Studi Kasus Model Kompetisi Jembatan Indonesia XIX Tahun 2024 Bestari, Legat; Priskasari, Ester; Sunarwadi, Hadi Surya Wibawanto
Jurnal Spesialis Teknik Sipil (JSpTS) Vol. 6 No. 2 (2025)
Publisher : Magister Teknik Sipil, Fakultas Teknik, Universitas 17 Agustus 1945 Surabaya

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Abstract

Arch bridges represent a widely favoured structural form, celebrated for their inherent efficiency and aesthetic appeal. Variations in arch geometry, such as circular and parabolic shapes, exert a significant influence on both the structural stability and load distribution within the design. This research endeavours to conduct a comparative analysis of how distinct arch geometries—specifically circular and parabolic—impact the structural stability of arch bridges. The investigation centres on a case study utilising a model arch bridge from the 19th Indonesian Bridge Competition (KJI) in 2024. The methodology employed involves structural analysis facilitated by SAP2000 v.24 software, adhering strictly to the guidelines set forth by KJI XIX 2024 and SNI 1729:2020 for comprehensive evaluation. Key parameters subjected to analysis included internal forces, stress, strain, deflection, and material efficiency. The analytical findings reveal that the bridge model incorporating a parabolic arch demonstrates superior performance. While the maximum axial forces in the arch rib and hangers were higher in the parabolic model, this model exhibited substantially lower bending moments in the arch rib (45.36 kNmm) and longitudinal girder (32.55 kNmm) when compared to the circular arch model (86.51 kNmm and 87.41 kNmm). Furthermore, the maximum deflection observed in the parabolic model (1.75 mm) was notably less than that of the circular model (2.21 mm). In terms of material consumption, the parabolic arch bridge model proved more efficient, with a total weight of 19.19 kg, making it 51.9% lighter than the circular arch bridge model, which weighed 37 kg. In conclusion, the parabolic arch form imparts enhanced structural stability and greater material efficiency, proving more effective in channelling loads primarily into pure compressive forces, thereby mitigating overall bending moments and deformations.
Co-Authors Adi Susetyo Dermawan Adi Susetyo Dermawan Amar Rizqi Afdholy Amar Rizqi Afdholy Anak Agung Gede Sugianthara Annisa Yuniar Bagus Herlambang Bambang Wedyantadji Bangkit Pangestuaji, Wahyu Bestari, Legat Candra Dwiratna Wulandari Danang Hadi Nugroho Deddy Rudhistiar Deviany Kartika Deviany Kartika Dewi Yuniar Ester Priskasari Ester Priskasari Firdaus, Adam Fitriansyah Fitriansyah HERU PRASETYO NUGROHO Hery Setyobudiarso Imelda Febrianti Justino Dos Santos Lila Ayu Ratna Winanda Lila Ayu Ratna, Winanda Mohammad Erfan Muhammad Hasan Wahyudi Nisyasalsabila Putri, Khoyru Nugroho, Danang Hadi NUKI TRI SUSANTO Prakosa, Hardian Yudha Putra, Setyo Anggoro Rakha Radhitya Putra Yudiyanto RESIA DINI APRIANI Sriliani Surbakti Sudiro Sudiro Teten Suparto Thesa Adi Saputra Yusri Tiong Iskandar Vincentius Ivan Wahyu Bangkit Pangestuaji Yudiayanto, Rakha Radhitya Putra