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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jess/117/S2/0865-0878

    • Keywords

       

      Seismic hazard assessment; total probability theorem; macrozonation study; microzonation study.

    • Abstract

       

      This paper presents the development of spectral hazard maps for Sumatra and Java islands, Indonesia and microzonation study for Jakarta city. The purpose of this study is to propose a revision of the seismic hazard map in Indonesian Seismic Code SNI 03-1726-2002. Some improvements in seismic hazard analysis were implemented in the analysis by considering the recent seismic activities around Java and Sumatra. The seismic hazard analysis was carried out using 3-dimension (3-D) seismic source models (fault source model) using the latest research works regarding the tectonic setting of Sumatra and Java. Two hazard levels were analysed for representing 10% and 2% probability of exceedance (PE) in 50 years ground motions for Sumatra and Java. Peak ground acceleration contour maps for those two hazard levels and two additional macrozonation maps for 10% PE in 50 years were produced during this research. These two additional maps represent short period (0.2 s) and long-period (1.0 s) spectra values at the bedrock. Microzonation study is performed in order to obtain ground motion parameters such as acceleration, amplification factor and response spectra at the surface of Jakarta. The analyses were carried out using nonlinear approach. The results were used to develop contour of acceleration at the surface of Jakarta. Finally, the design response spectra for structural design purposes are proposed in this study.

    • Author Affiliations

       

      Masyhur Irsyam1 Donny T Dangkua1 Hendriyawan1 Drajat Hoedajanto2 Bigman M Hutapea3 Engkon K Kertapati4 Teddy Boen5 Mark D Petersen6

      1. Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Jl. Ganesha 10 Bandung, West Java.
      2. Indonesian Society of Civil and Structural Engineers (HAKI), Jl. Tebet Barat Dalam X No. 5, Jakarta 12810, Indonesia.
      3. Indonesian Society for Geotechnical Engineering (HATTI), Jl. Warung Jati Barat Raya No. 75, Jakarta 12740, Indonesia.
      4. Geology Research and Development Centre, Jl. Diponegoro 57, Bandung, West Java.
      5. World Seismic Safety Initiative (WSSI), Prisma Kedoya Plaza C 7/C 8, Jl. Raya Perjuangan Kebun Jeruk, Jakarta 11530, Indonesia.
      6. U.S. Geological Survey USGS-MS966, Box 25046, Denver, CO 80225, USA.

    • Dates

       
      Published
      November 2008
      Manuscript received
      1 October 2007
      Manuscript revised
      21 April 2008
      Accepted
      24 April 2008

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