Assessment of ground motion amplification and building damages

• Main Authors: Pan, Tso Chien, Cheng, Kwok Wah, You, Xuting
• Other Authors: School of Civil and Environmental Engineering
• Format: Research Report
• Published: 2008
• Subjects: DRNTU::Engineering::Civil engineering::Structures and design
• Online Access: http://hdl.handle.net/10356/5193
• Institution: Nanyang Technological University

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.