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All Journal Teknika International Journal of Architecture and Urbanism
Juni Indriani
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Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Environmental Science Public Health Social Sciences Transportation

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Analysis of Earthquake-Resistant Portal Frame Structures with Ordinary Moment Frames (OMF), Intermediate Moment Frames (IMF), and Special Moment Frames (SMF) based on SNI 1726:2019 Juni Indriani; Johannes Tarigan
International Journal of Architecture and Urbanism Vol. 7 No. 1 (2023): International Journal of Architecture and Urbanism
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (983.96 KB) | DOI: 10.32734/ijau.v7i1.11687

Abstract

Since the 19th century, portal frames have been used to build industrial buildings because the development process is fast, economical, and efficient. This research aims to look at the cross-section of structural elements in BS 5950-1:2000 spans of 15 m and 40 m using SNI 1726:2019 with modal analysis, including horizontal deflection and stress ratio, using LRFD and ASD methods. Then, the structure was revised to be safe against earthquakes researched in three zones, including low (OMF), medium (IMF), and high (SMF) earthquakes. The results of this research show that the horizontal deflection's magnitude still falls within the allowable limit, with the maximum value on Tarutung, the SMF system, and KDS E on a 15-m span of 43.828 mm and a 40-m span of 68.703 mm. However, several of the IMF and SMF systems' cross-sectional structures exceeded the stress ratio capacity. After revision, the percentage ratios of the maximum structural weight using cross-sections on the Indonesian market using two methods and three frame systems with spans of 15 m and 40 m are 16.050% and 17.240%, respectively. The obtained maximum structural weight exceeds the cross-sections of the British standard before revision by 13.935% and 13.187%. It is an SMF system.
Analisis Perilaku Dinamik Struktur Portal Frame Mengacu pada Profil Baja BS 5950-1:2000 terhadap Beban Gempa Berdasarkan SNI 1726:2019 Indriani, Juni
TEKNIKA Vol. 19 No. 3 (2025): Teknika September 2025
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.15765920

Abstract

Portal frame telah digunakan secara luas sejak abad ke-19 karena kekuatan tinggi, efektif, dan efisien. Bahkan hingga saat ini, portal frame tetap menjadi pilihan konstruksi yang populer diterapkan pada bangunan industri, pergudangan, dan komersial. Penelitian ini bertujuan untuk menganalisis respons dinamik struktur portal frame dengan menggunakan profil baja berdasarkan BS 5950-1:2000, dengan bentang 15 m dan 40 m, terhadap beban gempa sesuai dengan SNI 1726:2019. Penelitian ini dilakukan karena dalam British Standard belum mempertimbangkan adanya beban gempa, sementara di Indonesia, beban gempa menjadi faktor penting dalam desain struktur bangunan. Analisis dinamik dilakukan dengan analisis modal pada tiga lokasi seismik berbeda, yaitu Bangka Belitung (Rangka Momen Biasa/RMB), Palembang (Rangka Momen Menengah/RMT), dan Tarutung (Rangka Momen Khusus/RMK). Hasil menunjukkan bahwa mode 1 dan 2 dominan translasi, sedangkan mode 3 rotasi, dengan partisipasi massa kumulatif hampir 100% tercapai pada mode ke-20 dan ke-25, masing-masing untuk bentang 15 m dan 40 m. Nilai deflection horizontal masih dalam batas aman, dengan nilai maksimum berada pada lokasi Tarutung, sistem Rangka Momen Khusus (RMK) pada kategori desain seismik (KDS) E, yaitu sebesar 43,828 mm untuk bentang 15 m dan 68,703 mm untuk bentang 40 m.
Co-Authors TARIGAN, Johannes