Proposed seismic hazard maps of Sumatra and Java islands and microzonation study of Jakarta city, Indonesia
Proposed seismic hazard maps of Sumatra and Java islands and microzonation study of Jakarta city, Indonesia
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拟议的苏门答腊岛和爪哇岛地震危险图以及印度尼西亚雅加达市的微分区研究
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
M. Petersen
中科院分区：
文献类型：
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作者：
M. Irsyam;D. Dangkua;Hendriyawan;Drajat Hoedajanto;B. Hutapea;E. Kertapati;T. Boen;M. Petersen
本文介绍了印度尼西亚苏门答腊岛和爪哇岛的光谱危害图的开发，以及雅加达城市的微区划研究。这项研究的目的是建议修订印尼地震规范SNI 03-1726-2002中的地震危险图。考虑到最近爪哇和苏门答腊岛周围的地震活动，对地震危险性分析进行了一些改进。利用苏门答腊岛和爪哇岛构造背景的最新研究成果，利用三维震源模型(断层震源模型)进行了地震危险性分析。分析了苏门答腊岛和爪哇岛两个危险等级分别代表了50年来苏门答腊岛和爪哇地震超过10%和2%的概率(PE)。在这项研究中，绘制了这两个危险等级的峰值地面加速度等值线图，以及另外两个10%PE在50年内的宏观区划图。这两张图代表了基岩的短周期(0.2 S)和长周期(1.0 S)谱值。为了获得雅加达地表的加速度、放大系数和反应谱等地震动参数，进行了微区划分研究。采用非线性方法进行了分析。这些结果被用来绘制雅加达表面的加速度等高线。最后，提出了可供结构设计使用的设计反应谱。
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.