Analytical-mechanical based framework for seismic overall fragility analysis of existing RC buildings in town compartments

Ruggieri Sergio; Calo Mirko; Cardellicchio AngeloUva Giuseppina

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Analytical-mechanical based framework for seismic overall fragility analysis of existing RC buildings in town compartments

机译：Analytical-mechanical based framework for seismic overall fragility analysis of existing RC buildings in town compartments

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摘要

The paper presents an analytical-mechanical based procedure to estimate the seismic overall fragility of existing reinforced concrete building portfolios in town compartments, as reduced areas of a municipality. The proposed methodology is based on two main concepts: (a) to consider all typological parameters characterizing the entire set of buildings located in a certain urban area and their variability through an analytical procedure; (b) to employ a mechanical approach by means of ideal numerical models to estimate the safety level of the focused sample of buildings. Hence, the methodology allows to compute seismic overall fragility curves, obtained by using laws of total variance and expectation and weighing factors proportional to the probability of having a certain configuration of typological parameters with determined values. To test the proposed procedure, some town compartments of the municipality of Bisceglie, Puglia, Southern Italy, were investigated by firstly identifying the most recurrent typological features exploiting multisource data, after by elaborating an extensive campaign of modelling and analysis on different ideal buildings (herein named realizations) and finally by computing fragility curves for each realization and for the set of ideal buildings. The results show overall fragilities curves for the investigated town compartments, which are obtained in a different way from the existing procedures, by avoiding an a-priori selection of one or more index buildings to represent the specific building portfolio and the definition of a specific building taxonomy.

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来源
《Bulletin of earthquake engineering》 |2022年第15期|8179-8216|共38页
作者
Ruggieri Sergio; Calo Mirko; Cardellicchio AngeloUva Giuseppina;
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作者单位

Polytech Univ Bari;

Natl Res Council Italy;

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原文格式 PDF
正文语种英语
中图分类地震学;
关键词
Seismic overall fragility curve; Existing RC buildings; Typological parameters; Homogeneous town compartments; URBAN-SCALE; DAMAGE ASSESSMENT; RISK-ASSESSMENT; VULNERABILITY ASSESSMENT; SELECTION; DATABASE; MODELS;

Analytical-mechanical based framework for seismic overall fragility analysis of existing RC buildings in town compartments

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