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      Evaluasi Seismik dan Retrofit Pada Bangunan Beton Bertulang Eksisting Dengan Perkuatan Jacketing

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      Date
      2026
      Author
      Trikirsa, Bima Zaky
      Fauzan, Muhammad
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      Abstract
      Indonesia merupakan wilayah dengan tingkat aktivitas seismik yang tinggi. Penelitian dilakukan untuk mengevaluasi kinerja seismik bangunan beton bertulang eksisting serta mengkaji efektivitas retrofit dengan concrete jacketing. Evaluasi dilakukan menggunakan SeismoBuild berdasarkan ASCE 41-17 dan SNI terkait. Hasil evaluasi awal dengan pushover analysis menunjukkan kekakuan struktur arah X lebih besar dibandingkan arah Y, dengan kapasitas geser maksimum sebesar 6354,91 kN pada arah X dan 6269,98 kN pada arah Y. Nilai target displacement untuk BSE-1E masing-masing sebesar 0,01489 m (arah X) dan 0,1527 m (arah Y), sedangkan untuk BSE-2E sebesar 0,03025 m (arah X) dan 0,03101 m (arah Y). Terdapat empat elemen balok (B37, B65, B68, dan B70) yang mengalami defisiensi. Retrofit dilakukan dengan metode concrete jacketing, dimana terdapat penambahan 100 mm pada bagian bawah balok dan 75 mm pada masing-masing sisi samping balok. Hasil evaluasi setelah retrofit menunjukkan nilai performance ratio pada seluruh elemen struktur menjadi <1 sehingga defisiensi dapat dihilangkan.
       
      Indonesia is a region with a high level of seismic activity. This study was conducted to evaluate the seismic performance of existing reinforced concrete buildings and to examine the effectiveness of retrofit using concrete jacketing. The evaluation was carried out using SeismoBuild based on ASCE 41-17 and related SNI standards. The initial evaluation using pushover analysis showed that the structural stiffness in the X direction was greater than that in the Y direction, with maximum shear capacities of 6354.91 kN in the X direction and 6269.98 kN in the Y direction. The target displacement values for BSE-1E were 0.01489 m in the X direction and 0.1527 m in the Y direction, while those for BSE-2E were 0.03025 m in the X direction and 0.03101 m in the Y direction. There were four beam elements (B37, B65, B68, and B70) that experienced deficiencies. Retrofit was carried out using the concrete jacketing method, with an additional 100 mm at the bottom of the beam and 75 mm on each side of the beam. The post-retrofit evaluation results showed that the performance ratio values of all structural elements became <1, thereby eliminating the deficiencies.
       
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      http://repository.ipb.ac.id/handle/123456789/174176
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      • UF - Civil and Environmental Engineering [1088]

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      Copyright © 2020 Library of IPB University
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      Contact Us | Send Feedback
      Indonesia DSpace Group 
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