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首页> 外文期刊>Bulletin of earthquake engineering >Application of the SP-BELA methodology to RC residential buildings in Italy to produce seismic risk maps for the national risk assessment
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Application of the SP-BELA methodology to RC residential buildings in Italy to produce seismic risk maps for the national risk assessment

机译：SP-BELA方法在意大利RC住宅建筑中的应用，为国家风险评估产生地震风险地图

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摘要

This article deals with the application of an analytical methodology for the large-scale vulnerability assessment of reinforced concrete frame buildings in Italy. This methodology is known in the technical literature with the acronym SP-BELA (Simplified Pushover-Based Earthquake Loss Assessment) and has been adopted by the Eucentre research group to contribute to the production of the seismic risk maps in Italy, published in the National Risk Assessment document. The Italian maps were elaborated using the IRMA platform (Italian Risk MAps), which is a web platform developed by Eucentre. The IRMA platform is only addressed to the scientific community who can use it to share data, methods, and models for the evaluation of the seismic risk in Italy (Borzi et al. in Piattaforma IRMA Italian Risk MAps, 2018; Dolce et al. in Mappe di rischio per il territorio Italiano, 2019a; Faravelli et al. in Italian platform for seismic risk and damage scenario evaluation, 2019a, Borzi et al. in Bull Earthq Eng, 2020, Dolce et al. Bull Earthq Eng, 2020). SP-BELA defines the non-linear behaviour of a random population of buildings through a simplified pushover and a displacement-based procedure. Specifically, displacement capacity limits are identified on the pushover curve and then they are compared with the displacement demand from a response spectrum of each building in the random population. In this way, it is possible to define the probability of exceedance of the damage limits and hence generate the fragility curves. Then, the resulting curves have been calibrated by comparing the damage data observed on the reinforced concrete buildings with the damage analytically calculated with SP-BELA for the earthquakes of Molise 2002 and L'Aquila 2009. The final curves have been uploaded into the IRMA platform and used to produce damage maps for the entire national territory.
机译：本文论述了一种分析方法在意大利钢筋混凝土框架建筑大规模易损性评估中的应用。该方法在技术文献中以缩写SP-BELA（简化的基于Pushover的地震损失评估）而闻名，并已被Eucentre研究小组采用，以帮助意大利制作地震风险图，并在国家风险评估文件中发布。意大利地图是使用IRMA平台（意大利风险地图）绘制的，该平台是由Eucentre开发的网络平台。IRMA平台只面向科学界，他们可以使用它来共享数据、方法，以及意大利地震风险评估模型（Borzi et al.in Piattaforma-IRMA Italian risk MAps，2018；Dolce et al.in Mappe di rischio per il territorio Italiano，2019a；Faravelli et al.in Italian platform for seismic risk scenario evaluation，2019a；Borzi et al.in Bull Earthq Eng，2020；Dolce et al.Bull Earthq Eng，2020）。SP-BELA通过简化的推覆和基于位移的程序定义了随机建筑群的非线性行为。具体而言，位移能力限值在pushover曲线上确定，然后将其与随机人群中每栋建筑的反应谱中的位移需求进行比较。通过这种方式，可以定义超出损伤极限的概率，从而生成脆性曲线。然后，通过比较钢筋混凝土建筑物上观测到的损伤数据与SP-BELA在2002年莫利塞地震和2009年拉奎拉地震中分析计算的损伤，对所得曲线进行了校准。最终的曲线已上传到IRMA平台，并用于绘制整个国家领土的破坏图。

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