000013162 001__ 13162
000013162 005__ 20161114160330.0
000013162 04107 $$aeng
000013162 046__ $$k2009-06-22
000013162 100__ $$aDolsek, M.
000013162 24500 $$aEstimation of the seismic response parameters through the extended incremental dynamic analysis

000013162 24630 $$n2.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013162 260__ $$bNational Technical University of Athens, 2009
000013162 506__ $$arestricted
000013162 520__ $$2eng$$aExplicit determination of seismic risk in the design process of a building or in the retrofitting process of an existing building can significantly reduce losses due to earthquakes in the future. Since determination of seismic risk is a subject of many uncertainties it is important to include these uncertainties in the process of the seismic risk estimation. Although the determination of the seismic hazard and the selection of the ground motion records probably represent the main source of uncertainty it is also important to consider that mathematical modelling of the seismic response is a subject of many modelling and physical uncertainties, which can, in addition to the aleatory uncertainty, significantly influence on the seismic response of building structures. Different methods are available for studying the influence of epistemic uncertainties on the seismic response parameters. Among others, recently the Incremental Dynamic Analysis (IDA) has been extended by introducing a set of structural models in addition to the set of ground motion records which is employed in IDA analysis in order to capture record-to-record variability. The set of structural models reflects epistemic (modeling) uncertainties, and is determined by utilizing the latin hypercube sampling (LHS) method. The effects of both aleatory and epistemic uncertainty on seismic response parameters are therefore considered in extended IDA analysis. Extension of the IDA analysis is straightforward since the only new step in the extended IDA analysis in comparison with the IDA is the determination of the set of structural models. In the paper the extended IDA is briefly summarized and applied to an example of the reinforced concrete frame. The influence of epistemic uncertainty on the seismic response parameters is presented in terms of summarized IDA curves and dispersion measures. In addition, the sensitivity of the seismic response parameters to the input random variable is discussed.

000013162 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013162 653__ $$aextended incremental dynamic analysis, uncertainty, epistemic, aleatory, seismic response parameters, reinforced concrete frame Abstract. Explicit determination of seismic risk in the design process of a building or in the retrofitting process of an existing building can significantly reduce losses due to earthquakes in the future. Since determination of seismic risk is a subject of many uncertainties it is important to include these uncertainties in the process of the seismic risk estimation. Although the determination of the seismic hazard and the selection of the ground motion records probably represent the main source of uncertainty it is also important to consider that mathematical modelling of the seismic response is a subject of many modelling and physical uncertainties, which can, in addition to the aleatory uncertainty, significantly influence on the seismic response of building structures. Different methods are available for studying the influence of epistemic uncertainties on the seismic response parameters. Among others, recently the Incremental Dynamic Analysis (IDA) has been extended by introducing a set of structural models in addition to the set of ground motion records which is employed in IDA analysis in order to capture record-to-record variability. The set of structural models reflects epistemic (modeling) uncertainties, and is determined by utilizing the latin hypercube sampling (LHS) method. The effects of both aleatory and epistemic uncertainty on seismic response parameters are therefore considered in extended IDA analysis. Extension of the IDA analysis is straightforward since the only new step in the extended IDA analysis in comparison with the IDA is the determination of the set of structural models. In the paper the extended IDA is briefly summarized and applied to an example of the reinforced concrete frame. The influence of epistemic uncertainty on the seismic response parameters is presented in terms of summarized IDA curves and dispersion measures. In addition, the sensitivity of the seismic response parameters to the input random variable is discussed.

000013162 7112_ $$aCOMPDYN 2009 - 2nd International Thematic Conference$$cIsland of Rhodes (GR)$$d2009-06-22 / 2009-06-24$$gCOMPDYN2009
000013162 720__ $$aDolsek, M.
000013162 8560_ $$ffischerc@itam.cas.cz
000013162 8564_ $$s1111004$$uhttps://invenio.itam.cas.cz/record/13162/files/CD216.pdf$$yOriginal version of the author's contribution as presented on CD, section: Statistical and probabilistic methods in computational mechanics to treat aleatory and epistemic uncertainties in structural and/or geotechnical systems and their loading environment - iii (MS).
000013162 962__ $$r13074
000013162 980__ $$aPAPER