地震后建筑评估

IF 0.8 Q4 ENGINEERING, GEOLOGICAL Bulletin of the New Zealand Society for Earthquake Engineering Pub Date : 2023-06-01 DOI:10.5459/bnzsee.1568
S. Khakurel, T. Yeow, Sandip Saha, R. Dhakal
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引用次数: 0

摘要

发生在城市中心附近的重大地震事件往往会对建筑物造成广泛的破坏。然后要求工程师对这些建筑物进行安全检查。这个过程可能很耗时,并且可能导致居民或企业在相当长的一段时间内流离失所,即使建筑物是安全的。此外,其他灾后恢复阶段,例如维修和拆卸/重建工程,甚至可能在建筑物检查阶段完成后才开始。因此,在对建筑物占用/功能停机时间进行建模时,需要考虑地震后检查造成的中断。本研究利用2011年克赖斯特彻奇地震的数据,建立了震后检验持续时间量化模型。首先,根据待评估的受损建筑物数量、可用工程师总数和评估每座建筑物所需的中位数时间来估计快速评估阶段的持续时间。其次,根据建筑物的损坏程度,得出建筑物被赋予某种颜色标签(白色、黄色或红色)的概率。最后,将两组信息结合起来量化震后检测时间。通过一个案例研究来证明所提出的模型的应用。
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Post-earthquake building assessments
Major seismic events occurring around urban centres often cause widespread damage to the building stock. Engineers are then required to perform safety inspections of these buildings. This process may be time-consuming and can cause residents or businesses to be displaced for a considerable duration even if the building is safe to occupy. Furthermore, other post-earthquake recovery phases, such as repair and demolition/reconstruction works, may not even initiate until the building inspection phase is complete. As such, the disruptions caused by post-earthquake inspection need to be considered when modelling building occupancy/functionality downtime. This study uses the data obtained from the 2011 Christchurch earthquake to develop a post-earthquake inspection duration quantification model. Firstly, the duration of the rapid assessment phase is estimated from the number of damaged buildings to be assessed, the total number of available engineers, and the median time needed for assessing each building. Secondly, the probability of a building being assigned a certain colour tag (White, Yellow or Red) is derived based on the extent of damage. Finally, both sets of information are combined to quantify the post-earthquake inspection duration. A case study is examined to demonstrate the application of the proposed model.
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来源期刊
CiteScore
2.50
自引率
17.60%
发文量
14
期刊最新文献
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