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Enny Harviyanti
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Analisis Kinerja Struktural Jembatan Gantung Berbasis Baja Ringan untuk Daerah Rawan Gempa: Structural Performance Analysis of Light Steel Suspension Bridges for Earthquake-Prone Areas Muhammad Hijerah Al Ahmad; I Putu Artawan; M. Ainur Ridlo; Eko Wahyudi; Enny Harviyanti
Jurnal Kolaboratif Sains Vol. 8 No. 1: Januari 2025
Publisher : Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/jks.v8i1.7172

Abstract

Jembatan gantung merupakan infrastruktur vital, terutama di daerah rawan gempa seperti Mamuju, Indonesia. Penggunaan baja ringan dalam konstruksi jembatan semakin mendapat perhatian karena rasio kekuatan terhadap berat yang tinggi serta fleksibilitasnya yang dapat meningkatkan ketahanan struktur terhadap beban seismik. Penelitian ini menganalisis kinerja struktural jembatan gantung berbasis baja ringan di daerah rawan gempa menggunakan pendekatan eksperimental dan numerik. Uji shake table serta simulasi finite element analysis (FEA) dilakukan untuk mengevaluasi respons osilasi, gaya geser, dan deformasi struktur baja ringan dibandingkan dengan baja konvensional. Hasil penelitian menunjukkan bahwa baja ringan mampu mengurangi gaya inersia sebesar 35%, meningkatkan efisiensi redaman seismik hingga 40%, serta meminimalkan deformasi lateral sebesar 25%. Analisis regresi lebih lanjut mengonfirmasi hubungan yang kuat (R² = 0.944) antara persentase penggunaan baja ringan dengan peningkatan ketahanan terhadap gempa. Selain itu, faktor keamanan jembatan berbasis baja ringan lebih tinggi (berkisar antara 1.836 hingga 1.973) dibandingkan desain konvensional. Temuan ini menunjukkan bahwa baja ringan merupakan material yang layak digunakan untuk meningkatkan ketahanan jembatan di daerah rawan gempa. Selain itu, efisiensi biaya baja ringan, yang ditunjang oleh pengurangan biaya material dan perawatan, menjadikannya pilihan praktis untuk pengembangan infrastruktur. Studi ini memberikan wawasan penting bagi pembuat kebijakan dan insinyur dalam mengoptimalkan desain jembatan gantung, guna memastikan keselamatan struktur dan efisiensi ekonomi.
MANAJEMEN KONSTRUKSI BANGUNAN CADANGAN PANGAN BERAS DI KOTA TANJUNG SELOR KABUPATEN BULUNGAN PROVINSI KALIMANTAN UTARA DALAM MEWUJUDKAN EFISIENSI DAN KETAHANAN PANGAN DAERAH Arman; Sholehah; Enny Harviyanti; Didi Adriansyah
Berajah Journal Vol. 4 No. 11 (2025): Berajah Journal
Publisher : CV. Lafadz Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47353/bj.v4i11.509

Abstract

This research aims to analyze the application of construction management in the development of rice food reserves in Tanjung Selor City to realize project efficiency and support regional food security. The method used was a descriptive qualitative approach, with data collection techniques through interviews with relevant parties, including contractors, project planners, and local government. Data analysis was conducted through data reduction, data presentation, and conclusion drawing to understand the factors that influence the success and constraints in the construction process. The results showed that the implementation of effective construction management contributed to the efficient development of rice food reserves through resource optimization, careful planning, and close supervision in every stage of construction. Constraints encountered include delays in material supply, lack of skilled labor, and time-consuming licensing processes. To improve project effectiveness, strategies that can be implemented include digitizing the licensing system, continuous workforce training, and strengthening coordination between the government, contractors, and building material suppliers. The implementation of these strategies is expected to accelerate project completion, reduce construction costs, and increase the long-term durability of infrastructure, so that rice food reserves can be managed more optimally in supporting regional food security.
Co-Authors Arman Eko Wahyudi I Putu Artawan M. Ainur Ridlo Muhammad Hijerah Al Ahmad Sholehah