Evaluasi Kinerja Struktur Gedung Menggunakan Analisis Pushover (Case Study Gedung Balai Diklat Universitas Negeri Malang).

Evaluation of Building Structure Performance Using Pushover Analysis (Case Study of the Malang State University Training Center Building).

Indonesia merupakan negara yang berada di jalur gempa pasifik dan jalur gempa asia, sehingga tingkat kinerja resiko terjadinya gempa bumi sangatlah tinggi. Gempa bumi menyebabkan kerusakan bangunan dan korban jiwa. Tujuan penelitian ini untuk mengevaluasi kinernja struktur Gedung Balai Diklat “Graha Pramesti” Universitas Negeri Malang dengan menggunakan analisis pushover. Analisis pushover merupakan salah satu performance based design yang berguna untuk mengetahui perilaku struktur akibat beban gempa dengan konsep penambahan beban secara bertahap sampai memenuhi target perpindahan. Analisis dilakukan berdasarkan standar SNI 1726-2019 dan kriteria kinerja ATC-40, dengan pemodelan struktur menggunakan ETABS. Hasil penetian berupa kurva kapasitas dan nilai maksimum total drift arah X- = 0,0079, X+ = 0,0050, Y- = 0,0069 dan Y+ = 0,0084. Berdasarkan hasil tersebut level kinerja struktur adalah Immediate Occupancy (IO) yang artinya bangunan aman saat terjadi gempa, risiko korban dan kegagalan struktur tidak terlalu berarti dan gedung segera dapat digunakan kembali.

Kata kunci : Evaluasi Kinerja Struktur, Pushover Analysis, ATC-40

Indonesia is a country located on the Pacific earthquake path and the Asian earthquake path, so the level of earthquake risk performance is very high. Earthquakes cause building damage and loss of life. The purpose of this study was to evaluate the structural performance of the "Graha Pramesti" Training Center Building, State University of Malang using pushover analysis. Pushover analysis is one of the performance-based designs that is useful for determining the behavior of structures due to earthquake loads with the concept of gradually increasing loads until they meet the target displacement. The analysis was carried out based on the SNI 1726-2019 standard and the ATC-40 performance criteria, with structural modeling using ETABS. The results of the determination were in the form of a capacity curve and the maximum value of the total drift direction X- = 0.0079, X + = 0.0050, Y- = 0.0069 and Y + = 0.0084. Based on these results, the structural performance level is Immediate Occupancy (IO) which means that the building is safe during an earthquake, the risk of casualties and structural failure is not too significant and the building can be reused immediately.

Keywords: Structural Performance Evaluation, Pushover Analysis, ATC-40