Acceleration Response Spectra for M 7.4 Donggala Earthquake and Comparison with Design Spectra

Journal of Sustainable Engineering: Proceedings Series

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Title Acceleration Response Spectra for M 7.4 Donggala Earthquake and Comparison with Design Spectra
Creator Sunardi, Bambang
Karnawati, Dwikorita
Haryoko, Urip
Rohadi, Supriyanto
Pramono, Sigit
Sungkowo, Ari
Subject acceleration response spectra
Donggala earthquake
design spectra
building code
Description A 7.4 magnitude earthquake have strucked Donggala on September 28th 2018, followed by tsunami and liquefaction which hit Palu, Central Sulawesi, a few minutes later. This event had resulted in damage to buildings, and caused more than 2,000 people were killed and injured. Indonesia already have a building code in form of SNI 1726:2002 which had been updated to SNI 1726:2012. This paper analyses the hazard level caused by the 2018 Donggala earthquake compared to the existing design spectra, as mentioned in SNI 1726:2002 and SNI 1726:2012. A simple analysis was carried out by comparing Donggala earthquake’s acceleration response spectra with the existing design spectra, at the MPSI accelerograph station. The site class at MPSI station is hard soil (SC). The seismic hazard in Palu and Donggala refers to SNI 1726:2002 is included in the earthquake area 4. The maximum earthquake response factor for earthquake area 4 is about 0.6 for hard soil type (SC). The MPSI station recorded peak ground acceleration of Donggala earthquake around 0.14 g. The acceleration response spectra recorded at the MPSI station showed a peak value of around 0.71 g for the N component. This value is actually still below the design spectra referring to SNI 1726:2012, which the peak value is 0.88 g for SC, but, it exceeded the design spectra of SNI 1726:2002.
Publisher Fakultas Teknik Universitas Sam Ratulangi
Date 2019-06-30
Type info:eu-repo/semantics/article
Peer-reviewed Article
Format application/pdf
Source Journal of Sustainable Engineering: Proceedings Series; Vol 1 No 1 (2019); 20-26
Language eng
Rights Copyright (c) 2019 Bambang Sunardi, Sulastri, Dwikorita Karnawati, Urip Haryoko, Supriyanto Rohadi, Sigit Pramono, Ari Sungkowo

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