Using experimental data to reduce the single-building sigma of fragility curves:case study of the BRD tower in Bucharest,Romania

查看全文 作　　者：Matthieu [1]Perrault;Philippe [1]Gueguen;Alexandru [2]Aldea;Sorin [2]Demetriu

机构地区：[1]Institut des Sciences de la Terre,Université Joseph Fourier Grenoble I,CNRS/IFSTTAR;[2]Technical University of Civil Engineering

出　　处：《Earthquake Engineering and Engineering Vibration》索引2013年第12卷第4期,共16页

基　　金：the ANR National Research Agency as Part of Its RiskNat Program(URBASIS project)under Grant No.ANR-09-RISK-009;the Rh ne-Alpes Regional Council(Programme Vulnerabilitédes Ouvrages aux Risques)and the Joseph Fourier Université(Grenoble 1) 摘　　要：The lack of knowledge concerning modelling existing buildings leads to significant variability in fragility curves for single or grouped existing buildings.This study aims to investigate the uncertainties of fragility curves,with special consideration of the single-building sigma.Experimental data and simplified models are applied to the BRD tower in Bucharest,Romania,a RC building with permanent instrumentation.A three-step methodology is applied:(1)adjustment of a linear MDOF model for experimental modal analysis using a Timoshenko beam model and based on Anderson’s criteria,(2)computation of the structure’s response to a large set of accelerograms simulated by SIMQKE software,considering twelve ground motion parameters as intensity measurements(IM),and(3)construction of the fragility curves by comparing numerical interstory drift with the threshold criteria provided by the Hazus methodology for the slight damage state.By introducing experimental data into the model,uncertainty is reduced to 0.02 considering S d(f1)as seismic intensity IM and uncertainty related to the model is assessed at 0.03.These values must be compared with the total uncertainty value of around0.7 provided by the Hazus methodology. 关键词：布加勒斯特实验数据罗马尼亚曲线 TIMOSHENKO梁弱性模型应用案例

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Using experimental data to reduce the single-building sigma of fragility curves:case study of the BRD tower in Bucharest,Romania

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