Impacts of 2020 Beirut Explosion on Port Infrastructure and Nearby Buildings
Impacts of 2020 Beirut Explosion on Port Infrastructure and Nearby Buildings
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DOI：
10.1061/(asce)nh.1527-6996.0000550
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发表时间：
2022-05
影响因子：
2.7
通讯作者：
S. Sadek;Mayssa Dabaghi;Timothy M. O'donnell;P. Zimmaro;Y. Hashash;J. Stewart
中科院分区：
文献类型：
--
作者：
S. Sadek;Mayssa Dabaghi;Timothy M. O'donnell;P. Zimmaro;Y. Hashash;J. Stewart
6 2020年8月4日18时08分，贝鲁特港12号机库发生大爆炸。7级的爆炸相当于当地震级（ML）为3.3的地震（USGS）。8作为有史以来影响城市地区的最大的非军事爆炸之一，这一事件为记录爆炸对城市基础设施的影响提供了前所未有的机会。为了促进数据收集，地质极端事件勘测协会（GEER）协调了一项多机构响应，旨在收集工程上感兴趣的易腐数据。有两大类基础设施系统受到影响----贝鲁特13号港口和贝鲁特建筑群。在港口内，爆炸引发了码头墙破坏14和水流滑坡，并强烈影响了靠近机库15和12的筒仓结构。在城市内，历史砖石结构，旧钢筋混凝土结构和现代高层结构的组合受到影响。通过17次现场检查和街景调查，我们收集了关于结构性能（包括18次承重构件损坏）和建筑立面的数据。性能等级根据地震后以前应用的程序（结构性能）和新提出的程序（立面开口）进行分类。我们描述这些空间分布
6 At 18:08 on 4 August 2020, a large explosion occurred at Hangar 12 in the Port of Beirut. The size 7 of the explosion was equivalent to that of an earthquake with local magnitude (M L ) of 3.3 (USGS). 8 As one of the largest non-military explosions to ever impact an urban region, this event provides 9 unprecedented opportunities to document explosion impacts on urban infrastructure. To 10 facilitate this data collection, the Geotechnical Extreme Events Reconnaissance Association 11 (GEER) coordinated a multi-agency response directed towards the collection of perishable data 12 of engineering interest. Two main categories of infrastructure systems were impacted -- the Port 13 of Beirut and the Beirut building stock. Within the Port, the explosion triggered a quay wall failure 14 and flow slide, and strongly impacted grain silo structures that were in close proximity to Hangar 15 12. Within the city, a combination of historical masonry structures, older reinforced concrete 16 structures, and modern high-rise structures was impacted. Through a combination of in-person 17 inspections and street-view surveys, we collected data on structural performance (including 18 damage to load-bearing elements) and building façades. Performance levels are classified 19 according to procedures applied previously following earthquakes (for structural performance) 20 and newly proposed procedures (for façade openings). We describe spatial distributions of these