2020年1月土耳其Sivrice (Elazığ) 6.8 Mw地震中倒塌并严重受损的钢筋混凝土建筑材料质量和工艺缺陷调查

M. Bikçe, M. M. Erdem
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引用次数: 1

摘要

2020年1月24日,土耳其锡夫里斯(Elazığ)发生地震,造成41人死亡,1600多人受伤,672栋建筑倒塌,约12600栋建筑因施工质量差严重受损。在这种毁灭性的地震之后,通常会迅速进行损害评估和法医调查,以便进行司法程序,并揭示材料的质量。然而,地震灾区灾民的情绪敏感,以及交通、电力供应等关键生命线服务的中断,往往使这些过程变得困难。Elazığ地震发生后,为了克服这些不利条件,利用传统的原位岩心取样方法,从倒塌和严重受损的建筑物柱中收集混凝土块,并将其运出震区。与传统方法的整个采样过程在震区内进行不同,从运输的混凝土块中提取核心是在地震灾区外进行的。提取的混凝土样品经检查是否符合现行材料标准。此外,还提取了不同直径的多根钢筋并进行了测试,以检查其是否符合标准。此外,还讨论了施工中使用的材料和工艺质量的检查结果,以及减少类似建筑物造成的死亡和损害所需的预防措施。
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Investigation of construction material quality and workmanship defects of RC buildings collapsed and severely damaged in the 6.8 Mw Sivrice, Elazığ, Turkey earthquake, January 2020
In the Sivrice, Elazığ, Turkey earthquake on January 24, 2020, 41 people lost their lives, more than 1600 people were injured, 672 buildings collapsed, and around 12600 buildings were severely damaged due to poor construction quality. After such devastating earthquakes, damage assessment and forensic investigations are normally carried out quickly for a judicial process, and material qualities are revealed. However, emotional sensitivity of the victims in the earthquake affected zone and disruptions in key lifeline services such as transportation, electricity supply often make these processes difficult. After the Elazığ earthquake, along with the conventional in-situ core sampling method, concrete pieces were collected from columns of collapsed and severely damaged buildings and transported out of the earthquake zone to overcome these adverse conditions. Unlike in the conventional method where the whole sampling process is carried out in the earthquake zone, the core extraction from the transported concrete pieces was carried out outside the earthquake-affected area. The extracted concrete samples were checked for compliance with the prevailing material standards. Moreover, multiple reinforcing bars of various diameters were also extracted and tested to check their compliance with the standards. Besides, the results of examination of the quality of materials and workmanship used in the construction are also discussed, along with the precautions required to minimize fatalities and damage from similar buildings.
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来源期刊
CiteScore
2.50
自引率
17.60%
发文量
14
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