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Sarkowi, Muh, Wibowo, Rahmat, Yogi, Ida Bagus, Yusuf, Mahmud, Boka, Yohana. (1400). Microtremor analysis to evaluate BMKG region III building, Bali, Indonesia. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 14(2), 104-111. doi: 10.30495/ijes.2022.1942485.1659
Muh Sarkowi; Rahmat Catur Wibowo; Ida Bagus Suananda Yogi; Mahmud Yusuf; Yohana Stefani Boka. "Microtremor analysis to evaluate BMKG region III building, Bali, Indonesia". نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 14, 2, 1400, 104-111. doi: 10.30495/ijes.2022.1942485.1659
Sarkowi, Muh, Wibowo, Rahmat, Yogi, Ida Bagus, Yusuf, Mahmud, Boka, Yohana. (1400). 'Microtremor analysis to evaluate BMKG region III building, Bali, Indonesia', نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 14(2), pp. 104-111. doi: 10.30495/ijes.2022.1942485.1659
Sarkowi, Muh, Wibowo, Rahmat, Yogi, Ida Bagus, Yusuf, Mahmud, Boka, Yohana. Microtremor analysis to evaluate BMKG region III building, Bali, Indonesia. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 1400; 14(2): 104-111. doi: 10.30495/ijes.2022.1942485.1659

Microtremor analysis to evaluate BMKG region III building, Bali, Indonesia

Iranian Journal of Earth Sciences
مقاله 2، دوره 14، شماره 2، تیر 2022، صفحه 104-111    اصل مقاله (911.65 K)
نوع مقاله: Original Research Paper
شناسه دیجیتال (DOI): 10.30495/ijes.2022.1942485.1659
نویسندگان
Muh Sarkowi* 1؛ Rahmat Catur Wibowo1؛ Ida Bagus Suananda Yogi1؛ Mahmud Yusuf2؛ Yohana Stefani Boka3
1Geophysical Engineering, Engineering Faculty, Universitas Lampung, 35145, Bandar Lampung, Lampung, Indonesia
2Research & Development Center BMKG, Jakarta, Indonesia,
3Geophysical Engineering, Industry and Production Technology Department, Institut Teknologi Sumatera, 35365, South Lampung, Lampung, Indonesia
چکیده
Bali Island has experienced more than 6 significant earthquakes (magnitude > 6) since 1815, which caused extensive damage to buildings and casualties. The microtremor data analysis in the building of Indonesian meteorology, climatology and geophysics agency (BMKG) Region III Denpasar aims to reduce the risk of building damage and casualties due to the earthquake. The analysis was conducted by measuring microtremor and processing the data to obtain the natural frequency of the soil (f0s HVSR) and building (f0b HVSR), resonance, soil (Kg), and building vulnerability index (Kb) so that the safety of the building can be known in the event of an earthquake. The processing and analyzing results the characteristics of microtremor data get the f0b has a greater value than the f0s value so that the building is relatively safe from resonance. The resonance value of the building with the ground has an (R) value of 6.67% - 13.3%, with an average resonance value of 8.89% which is included in the medium resonance. The location of the building is in an area with a Kg of 8.20 – 10.81, which is included in the category of low to moderate soil vulnerability index, and the Kb has a value of 0.4827x10-6 – 7.9771x10-6, with the first floor having an index highest vulnerability. The f0s, f0b, R, Kg, and Kb show that the building is in the safe category in the event of an earthquake.
کلیدواژه‌ها
Microtremor؛ Natural frequency؛ Resonance؛ Vulnerability building؛ Bali
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