A Probe into the Seismic History of Athens, Greece from the Current State of a Classical Monument
A Probe into the Seismic History of Athens, Greece from the Current State of a Classical Monument
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从古典纪念碑的现状探寻希腊雅典的地震史
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
I. Psycharis
中科院分区：
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作者：
I. Psycharis
基于希腊雅典奥林匹斯宙斯神庙(奥林匹亚神庙)一根柱子目前的变形，进行了反向分析，以努力调查该纪念碑所在地区过去2000年的地震历史。由于地震响应的非线性和敏感性，以及结构在其使用寿命的每一个时期的未知几何形状，分析不可避免地包含许多模糊性。尽管有这些缺点，仍然可以得出结论；然而，这些结论应该通过对附近其他古迹的类似分析来验证。结果表明，该纪念碑的现状可能是以下原因的结果：多次中等规模的典型近场地震，PGV在30 cm/S左右，平均重现期约250年；或较少的较强地震，PGV在50 cm/S左右，重现期约500年；或一次PGV高达100 cm/S的地震。似乎不太可能发生具有长周期(大于1.2秒)脉冲的地震。
Based on the current deformation of a column of the temple of Olympios Zeus (Olympieion) in Athens, Greece, a backward analysis is performed in an effort to investigate the seismic history of the area during the last 2,000 years that the monument has been standing. The analysis inevitably contains many ambiguities, due to the nonlinearity and sensitivity of the seismic response, and the unknown geometry of the structure during each era of its life. In spite of these drawbacks, conclusions can be drawn; these, however, should be verified by similar analyses of other nearby monuments. The results show that the present state of the monument could be the result of: many medium-size, typical, near-field earthquakes with a PGV around 30 cm/s and with an average return period of about 250 years; or a smaller number of stronger earthquakes with a PGV around 50 cm/s and a return period of about 500 years; or a single event with a PGV up to 100 cm/s. It seems unlikely that earthquakes containing pulses of long periods (greater than 1.2 sec) have occurred.