Fragility and comfortability curves development and seismic risk assessment of a masonry building under earthquakes induced by geothermal power plants operation

脆弱性 砖石建筑 地震灾害 震中 增量动力分析 危害 无筋砌体房屋 地震风险 工程类 地震情景 地质学 地震学 计算机科学 结构工程 地震分析 物理 热力学 有机化学 化学
作者
Ali Khansefid,Seyed Mahmoudreza Yadollahi,Francesca Taddei,Gerhard Müller
出处
期刊:Structural Safety [Elsevier]
卷期号:103: 102343-102343
标识
DOI:10.1016/j.strusafe.2023.102343
摘要

This research is an attempt to estimate the seismic risk of geothermal power plants (GPPs) operation on the masonry buildings located in the vicinity of these infrastructures through a probabilistic framework. In this regard, a typical masonry building in Germany is considered. In the first part, the fragility and comfortability curves of this building are established. For this purpose, a set of 30 ground motions recorded due to GPPs activity are used for performing elaborated three-dimensional nonlinear incremental dynamic analysis to construct the fragility and comfortability curves. In the second part of the research work, by using the Monte-Carlo simulation technique and adopting the hazard model capable of simulating both seismological characteristics and ground motion intensities, the required number of probable hazard scenarios are generated for different ranges of GPPs injection flow rates. Afterward, the seismic risk imposed on the masonry building is evaluated by considering the developed fragility and comfortability curves. The outcomes highlight that the risk of facing structural damage is not significant; however, the disturbance of buildings’ residents is highly probable and can lead to considerable seismic risk. In addition, in the close vicinity of the earthquake epicenter (less than 5 km), the estimated risk increases tangibly in comparison with the larger distances (more than 15 km).
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