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首页> 外文期刊>Bulletin of earthquake engineering >A methodology for the seismic multilevel assessment of unreinforced masonry church inventories in the Groningen area
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A methodology for the seismic multilevel assessment of unreinforced masonry church inventories in the Groningen area

机译：Groningen地区未原始的砌体教堂库存的地震多级评估方法

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As a result of changes in seismicity in the Groningen area, a need has arisen to be able to rapidly assess and prioritize entire inventories of unreinforced masonry churches. As a part of being able to provide resource optimization to determine which structures are in most need of intervention, a multilevel methodology to assess seismic performance is presented. The process involves both data collection and vulnerability assessments. This multilevel approach involves progressive refinements to the data collected and to the complexity of the analyses conducted. Five data collection phases are used in conjunction with three progressively more complex methods for the seismic assessment. The first level of assessment uses only statistical information of the structures with information that can be obtained through desktop reviews. The second level of analysis uses key characteristics of wall thickness and height to develop simple models for each wall in each church. This level of analysis requires at least a preliminary site visit. In the third level of analysis, a more refined model of the church is developed from detailed site surveys of the structure where each wall is modelled and assessed. The process involves the assessment of the in-plane behaviour of either whole churches or single walls (global response) and the out-of-plane behaviour of single elements (local response). The study applies the approaches outlined in the NEN NPR9998 2017 combined with the Italian Standards for the cultural heritage. This paper outlines this Seismic Multilevel Assessment of Churches methodology and how it applies to an inventory of 52 unreinforced masonry churches in the Groningen area, The Netherlands.
机译：由于格罗宁根地区的地震性变化，因此需要迅速评估并优先考虑整个未成年的砌体教堂的整个库存。作为能够提供资源优化的一部分，以确定哪种结构是最需要的干预，提出了评估地震性能的多级方法。该过程涉及数据收集和漏洞评估。这种多级方法涉及对收集的数据的逐步改进以及进行分析的复杂性。五个数据收集阶段与三种逐步更复杂的地震评估方法一起使用。第一级评估仅使用结构的统计信息与可通过桌面评论获得的信息。第二级分析使用墙壁厚度和高度的关键特性，为每个教堂的每个墙开发简单的模型。这种分析级别至少需要初步现场访问。在第三级分析中，从每个墙体建模和评估的结构的详细网站调查中，开发了一个更精致的教堂模型。该过程涉及评估整个教堂或单壁的面内行为（全局响应）和单个元素的外平面行为（局部响应）。该研究适用于2017年NEN NPR9998 2017中概述的方法与文化遗产的意大利标准相结合。本文概述了这种教堂方法的地震多级评估以及如何在荷兰格罗宁根地区的52个不合因的砌体教堂的清单中。

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