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Microzonation of Bucharest: State-of-the-art

机译:布加勒斯特的微区划:最新技术

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The 1940 (M-w=7.7) and 1977 (M-w=7.4) Vrancea earthquakes (Romania) inflicted heavy damage and casualties in Bucharest and the statistics indicate a recurrence interval of 25 years for M-w greater than or equal to 7.0 events. Under these circumstances, the seismic microzonation represents important information for detailed urban planning that establishes an appropriate level of preparedness to the earthquake threat. This paper reviews the main studies concerning the seismicity of the Vrancea region, the site conditions of the city, the characterization of the building stock, and the codes of practice that regulate the antiseismic design. The first-order microzonation of Bucharest was performed starting from the existing database of structural and geotechnical parameters. New insights originating from direct instrumental observation and interpretation of the local effects as well as realistic numerical modeling that update and improve the input data necessary for a detailed microzoning map of the city are also discussed.
机译:1940年(M-w = 7.7)和1977年(M-w = 7.4)的Vrancea地震(罗马尼亚)在布加勒斯特造成了严重损失和人员伤亡,统计数据表明M-w大于或等于7.0事件的复发间隔为25年。在这种情况下,地震微区带代表了详细的城市规划的重要信息,可为地震威胁建立适当的准备水平。本文回顾了有关Vrancea地区地震活动,城市现场条件,房屋建筑特征以及规范抗震设计的操作规范的主要研究。从现有的结构和岩土参数数据库开始对布加勒斯特进行一阶微区划。还讨论了直接的仪器观测和对局部影响的解释以及对更新和改进城市详细微区地图所必需的输入数据的现实数值模型的新见解。

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