Pranata, Dadang Ardi (2025) Analisis Komparatif Kinerja Seismik Buckling Restrained Braced Frames (BRBF) dan Eccentrically Braced Frames (EBF) Menggunakan Metode Analisis Dinamik Nonlinear Inkremental (IDA). Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Bangunan bertingkat tinggi di wilayah rawan gempa menghadapi tantangan signifikan dalam memastikan keselamatan, meminimalkan kerusakan struktural,dan mempertahankan fungsionalitas selama dan setelah kejadian seismik. Oleh karena itu, pemilihan sistim struktur yang optimal sangat penting untuk meningkatkan ketahanan dan mengurangi risiko keruntuhan. Penelitian ini membandingkan kinerja seismik Buckling-Restrained Braced Frame (BRBF) dan Eccentrically Braced Frame (EBF) melalui analisis Incremental Dynamic Analysis (IDA) dan kurva probabilitas kerentanan. Hasil menunjukkan bahwa BRBF lebih unggul dalam menghadapi gempa dengan intensitas tinggi. BRBF memerlukan intensitas gempa lebih rendah untuk mencapai tingkat kinerja tertentu, seperti 1,13g untuk Collapse Prevention (CP) dan 0,90g untuk Life Safety (LS), dibandingkan EBF. Pada gempa kuat (PGA = 1g), BRBF tetap berada pada tingkat LS dengan Maximum Interstory Drift Ratio (MIDR) sebesar 2,18%, sementara EBF mencapai CP dengan MIDR 2,42%, menunjukkan kerusakan lebih besar. Kurva kerentanan mengindikasikan bahwa BRBF lebih efektif dalam mempertahankan stabilitas struktural, dengan probabilitas kerusakan lebih rendah untuk melampaui tingkat LS (78%) dibandingkan EBF (96%) pada gempa kuat 1g. Secara keseluruhan, BRBF menunjukkan kinerja seismik yang lebih baik dengan stabilitas dan ketahanan lebih tinggi terhadap gempa kuat, menjadikannya solusi yang lebih andal untuk struktur bangunan tahan gempa.
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High-rise buildings in earthquake-prone regions face significant challenges in ensuring safety, minimizing structural damage, and maintaining functionality during and after seismic events. Therefore, selecting an optimal structural system is crucial to enhancing resilience and reducing the risk of collapse. This study compares the seismic performance of Buckling-Restrained Braced Frame (BRBF) and Eccentrically Braced Frame (EBF) using Incremental Dynamic Analysis (IDA) and fragility probability curves. The results indicate that BRBF outperforms EBF in withstanding high-intensity earthquakes. BRBF requires lower seismic intensity to reach specific performance levels, such as 1.13g for Collapse Prevention (CP) and 0.90g for Life Safety (LS), compared to EBF. Under strong seismic events (PGA = 1g), BRBF remains at the LS level with a Maximum Interstory Drift Ratio (MIDR) of 2.18%, whereas EBF reaches CP with a MIDR of 2.42%, indicating greater damage. The fragility curves suggest that BRBF is more effective in maintaining structural stability, with a lower probability of exceeding LS (78%) compared to EBF (96%) under a 1g earthquake. Overall, BRBF demonstrates superior seismic performance with greater stability and resilience against strong earthquakes,
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Buckling Restrained Braced Frames, Incremental Dynamic Analysis , Eccentrically Braced Frames, Fragility Curve |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering) T Technology > TA Engineering (General). Civil engineering (General) > TA658 Structural design |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22101-(S2) Master Thesis |
| Depositing User: | Dadang Ardi Pranata |
| Date Deposited: | 06 Feb 2025 03:27 |
| Last Modified: | 06 Feb 2025 03:27 |
| URI: | http://repository.its.ac.id/id/eprint/118304 |
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