Evaluasi Kinerja Struktur Bangunan Gedung Bertingkat Beton Bertulang dengan Menggunakan Metode Analisis Respons Spektrum dan Analisis Time History (Studi Kasus Rusun Pulo Jahe)

Silaban, Gilbert Tua Novensius (2023) Evaluasi Kinerja Struktur Bangunan Gedung Bertingkat Beton Bertulang dengan Menggunakan Metode Analisis Respons Spektrum dan Analisis Time History (Studi Kasus Rusun Pulo Jahe). S1 thesis, Universitas Kristen Indonesia.

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Abstract

Pulau Jawa merupakan salah satu wilayah yang mempunyai infrastruktur dan penduduk paling padat. Disamping itu pada wilayah tersebut juga terdapat kota-kota besar sepanjang lajur potensi bahaya gempa bumi. Secara geologis wilayah Pulau Jawa terletak di zona konvergen yaitu zona tumbukan antara lempeng Indo-Australia dan lempeng Eurasia sehingga menyebabkan wilayah ini banyak terdapat gunung api aktif dan memiliki potensi tinggi terhadap gempa bumi. Oleh karena itu penting dilakukan tinjauan beban gempa rencana dalam perencaan desain struktur bangunan terhadap wilayah dan fungsi bangunan sebagai antisipasi meminimalisir bahkan mencegah kerugian apabila terjadi gempa. Penelitian ini dilakukan guna mengetahui kinerja struktur terhadap displacement, drift serta batas stabilitas struktur terhadap beban gempa bedasarkan peraturan (Badan Standarisasi Nasional, 1726:2019). Proses evaluasi dilakukan dengan pemodelan 3d bangunan menggunakan program software ETABS v.17, analisis bedasarkan analisis dinamik linear riwayat waktu dan respon spektrum. Analisis riwayat waktu menggunakan catatan rekaman gempa Kobe, California, dan San Francisco yang di match terhadap gempa respon spektrum, hasil analisis berdasarkan program dilakukan untuk membandingkan dua metode yang digunakan. Bedasarkan hasil analisis, nilai rata-rata displacement dilantai 4 sampai lantai 12 arah horizontal X melebihi nilai drift. Hasil batas koefisien stabilitas struktur terhadap displacement bedasarkan pengaruh P- Delta perlu dilakukan desain ulang terhadap kekakuan struktur kolom atau penambahan dinding geser pada arah horizontal X bangunan. Kata Kunci: Displacement; Drift; Time history; Respons Spectrume. / Java Island stands out as one of the regions characterized by dense infrastructure and a high population density. Adding to the challenge, this area is also home to major cities positioned along a potential earthquake-prone belt. The geological setting of Java Island places it within a convergent zone, specifically at the collision point between the Indo-Australian plate and the Eurasian plate. This geological circumstance gives rise to numerous active volcanoes and a notably elevated susceptibility to earthquakes. This research was conducted to determine the structure's performance against displacement, drift and the stability limits of the structure against earthquake loads based on regulations (National Standardization Agency, 1726: 2019). The evaluation process was carried out by 3d modeling of the building using the ETABS v.17 software program, analysis based on linear dynamic analysis of time history and spectrum response. Time history analysis used earthquake records of Kobe, California, and San Francisco which were matched to the earthquake response spectrum, the results of analysis based on the program were carried out to compare the two methods used. Based on the analysis results, the average displacement value on the 4th to 12th floors in the horizontal X direction exceeds the drift value. The results of the structural stability coefficient limits on displacement based on the P-Delta effect need to be redesigned for the stiffness of the column structure or the addition of shear walls in the X horizontal direction of the building. Keywords: Displacement; Drift; Time history; Respons Spectrume.

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