Development of damage probability matrices based on Greek earthquake damage data
Development of damage probability matrices based on Greek earthquake damage data
复制标题
根据希腊地震损坏数据开发损坏概率矩阵
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
A. Karabinis
中科院分区：
文献类型：
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作者：
A. Eleftheriadou;A. Karabinis
一个全面的研究，提出了经验的地震易损性评估的典型结构类型，代表建筑股票的南欧，基于大量的损坏统计数据。观测数据库是从1999年9月7日雅典地震灾区的震后调查中获得的。在对收集到的观测数据进行分析后，建立了一个统一的损坏数据库，其中包括地震近场区或地震后受损的180 945座建筑物。根据南欧的材料、抗震规范和建筑技术，受损建筑物被分为特定的结构类型。根据区域宏观地震烈度和比值αg/ao描述地震需求，其中αg是地震事件的最大峰值地面加速度（PGA），ao是希腊灾害图上显示的每个城市的唯一PGA值。根据损伤比计算了每种结构类型和每种烈度水平下不同损伤状态的相对频率和累积频率。针对具体的结构类型，得到了损伤概率矩阵（DPM）和易损性曲线。比较分析之间产生的和现有的脆弱性模型。
A comprehensive study is presented for empirical seismic vulnerability assessment of typical structural types, representative of the building stock of Southern Europe, based on a large set of damage statistics. The observational database was obtained from post-earthquake surveys carried out in the area struck by the September 7, 1999 Athens earthquake. After analysis of the collected observational data, a unified damage database has been created which comprises 180,945 damaged buildings from/after the near-field area of the earthquake. The damaged buildings are classified in specific structural types, according to the materials, seismic codes and construction techniques in Southern Europe. The seismic demand is described in terms of both the regional macroseismic intensity and the ratio αg/ao, where αg is the maximum peak ground acceleration (PGA) of the earthquake event and ao is the unique value PGA that characterizes each municipality shown on the Greek hazard map. The relative and cumulative frequencies of the different damage states for each structural type and each intensity level are computed in terms of damage ratio. Damage probability matrices (DPMs) and vulnerability curves are obtained for specific structural types. A comparison analysis is fulfilled between the produced and the existing vulnerability models.