Observations from the 26th November 2019 Albania earthquake: the earthquake engineering field investigation team (EEFIT) mission

Observations from the 26th November 2019 Albania earthquake: the earthquake engineering field investigation team (EEFIT) mission
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2019 年 11 月 26 日阿尔巴尼亚地震的观测:地震工程现场调查小组 (EEFIT) 任务

DOI:
10.1007/s10518-021-01062-8
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发表时间:
2021
影响因子:
4.6
通讯作者:
Freddi F
Freddi F
中科院分区:
工程技术2区
文献类型:
--
作者:
Freddi F

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2019年11月26日,由于非洲和欧亚大陆板块会聚边界附近的逆冲断层作用,阿尔巴尼亚西北部地区发生了6.4级地震,对都拉斯市及周边地区的建筑物造成了广泛的破坏。根据国家当局的官方数据,地震造成51人伤亡,损失9.85亿欧元,相当于2018年国内生产总值的7.5%。本文总结了地震工程现场调查小组(EEFIT)在地震发生后进行的现场观察。本文件概述了这次地震的地震学方面,并简要概述了这次地震造成的损害、官方损失统计数字以及估计的宏观和社会经济后果。此外,报告还概述了观察到的对近期和历史建筑物的破坏情况,并介绍了几个案例研究,以说明阿尔巴尼亚建筑群主要结构类型中观察到的典型破坏模式。这些观察试图确定所观察到的损坏模式与施工实践中的缺陷以及对历史资产使用不适当的改造技术之间可能存在的联系。由于在现代建筑物上观察到许多严重的损坏,这也允许确定当前抗震设计规范的一些差距和可能的发展领域。最后,总结了实地调查的经验教训。
On the 26th of November 2019, an earthquake of moment magnitude 6.4 struck the northwest region of Albania as the result of thrust faulting near the convergent boundary of the Africa and Eurasia plates causing widespread damage to buildings in the city of Durrës and the surrounding areas. Based on the official data from the national authorities, the earthquake caused 51 casualties and 985 million-euro losses, corresponding to 7.5% of the 2018 gross domestic product. This paper summarises field observations made by the Earthquake Engineering Field Investigation Team (EEFIT) after the event. The paper presents an overview of the seismological aspects of the earthquake together with a brief overview of the damage, official loss statistics and the estimated macro- and socio-economic consequences of the event. In addition, it provides a summary of the observed damage to both recent and historical buildings as well as the description of several case studies to illustrate the characteristic damage patterns observed in the main structural typologies of the Albanian building stock. These observations try to identify possible links between the observed damage patterns and the deficiencies in construction practice and use of inappropriate retrofit techniques for historical assets. As many severe damages were observed on modern buildings, this also allows the identification of some gaps and possible areas of development of the current seismic design code. In the end, the lessons learned from the field survey are resumed.
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