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首页> 外文期刊>Natural Hazards and Earth System Sciences Discussions >Comparison between seismic and domestic risk in moderate seismic hazard prone region: the Grenoble City (France) test site
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Comparison between seismic and domestic risk in moderate seismic hazard prone region: the Grenoble City (France) test site

机译：适度地震危险普遍区域地震与国内风险的比较：格勒诺布尔城（法国）试验网站

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摘要

France has a moderate level of seismic activity, characterized by diffuse seismicity, sometimes experiencing earthquakes of a magnitude of more than 5 in the most active zones. In this seismicity context, Grenoble is a city of major economic and social importance. However, earthquakes being rare, public authorities and the decision makers are only vaguely committed to reducing seismic risk: return periods are long and local policy makers do not have much information available. Over the past 25 yr, a large number of studies have been conducted to improve our knowledge of seismic hazard in this region. One of the decision-making concerns of Grenoble's public authorities, as managers of a large number of public buildings, is to know not only the seismic-prone regions, the variability of seismic hazard due to site effects and the city's overall vulnerability, but also the level of seismic risk and exposure for the entire city, also compared to other natural or/and domestic hazards. Our seismic risk analysis uses a probabilistic approach for regional and local hazards and the vulnerability assessment of buildings. Its applicability to Grenoble offers the advantage of being based on knowledge acquired by previous projects conducted over the years. This paper aims to compare the level of seismic risk with that of other risks and to introduce the notion of risk acceptability in order to offer guidance in the management of seismic risk. This notion of acceptability, which is now part of seismic risk consideration for existing buildings in Switzerland, is relevant in moderately seismic-prone countries like France.
机译：法国具有适度的地震活动水平，其特征在于弥漫性地震性，有时会在最活跃的区域中经历大小超过5的地震。在这种地震性背景下，格勒诺布尔是一个主要的经济和社会重要性的城市。然而，地震是罕见的，公共当局和决策者只致力于减少地震风险：返回期很长，地方政策制定者没有多少信息。在过去的25年中，已经进行了大量研究以改善我们对该地区的地震危害知识。格勒诺布尔公共当局的决策问题之一，作为大量公共建筑的管理者，是不仅知道地震易发的地区，因现场效应和城市的整体脆弱性而言，地震危害的变异性，还要知道整个城市的地震风险和曝光程度，也与其他自然或/和国内危害相比。我们的地震风险分析使用了区域和地方危害的概率方法和建筑物的脆弱性评估。其对Grenoble的适用性提供了基于多年来以前的项目所获得的知识的优势。本文旨在比较其他风险的地震风险水平，并介绍风险可接受性的概念，以便在管理地震风险管理方面提供指导。这种可接受性的概念，即瑞士现有建筑物的地震风险考虑的一部分，在法国等中度地震 - 易发国家是相关的。

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