Assessment of ground motion amplification and building damages
Tremors caused by distant Sumatra earthquakes have reportedly been felt in Singapore for many years. Based on a previous study (Megawati and Pan, 2002), the maximum credible earthquakes (MCEs) from Sumatra are hypothesized to be a subduction earthquake (Mw = 9.0) and a strike-slip earthquake (Mw = 7...
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| Main Authors: | , , |
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| Other Authors: | |
| Format: | Research Report |
| Published: |
2008
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/5193 |
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| Institution: | Nanyang Technological University |
| Summary: | Tremors caused by distant Sumatra earthquakes have reportedly been felt in Singapore for many years. Based on a previous study (Megawati and Pan, 2002), the maximum credible earthquakes (MCEs) from Sumatra are hypothesized to be a subduction earthquake (Mw = 9.0) and a strike-slip earthquake (Mw = 7.5). Response at a soft soil site to the synthetic bedrock motions corresponding to these maximum credible earthquakes are simulated using a one-dimensional equivalent-linear technique. It is estimated that such maximum credible earthquakes are able to induce spectral acceleration levels exceeding the threshold provided for by the existing building codes for a wide frequency range, thus demonstrating their inherent potential for damage to building structures. |
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