Influence of statistical approaches on structural collapse potential assessment

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dc.catalogadorjca
dc.contributor.authorGallegos, Marco
dc.contributor.authorAraya Letelier, Gerardo Andrés
dc.contributor.authorLopéz-García González, Diego
dc.date.accessioned2025-04-28T17:02:37Z
dc.date.available2025-04-28T17:02:37Z
dc.date.issued2022
dc.description.abstractStructural collapse estimations could be influenced by alternative statistical methodologies that can be chosen throughout the seismic risk assessment of buildings, specifically in the generation of collapse fragility functions. This research evaluates the impact of selecting different statistical methods on the collapse potential metrics of a reinforced concrete dual wall-frame building as a case study. The explored methods are related to the identification and replacement of unusual observations in the simulated collapse data, and the selection of different probability functions (PFs) to characterize the collapse fragility. According to the results, this mid-rise building showed an acceptable Life Safety risk in accordance with ASCE 7 targets, regardless of the PF. However, the probability of collapse in 50 years obtained using the Weibull PF could be 2.6 times the value obtained using the lognormal PF. This observation is due to the larger probability of collapse values exhibited by the Weibull PF at small-to-medium Sa(T1) intensities that are associated to higher mean annual frequency of exceedance. In addition, it was also found that excluding extreme collapse values reduced the dispersion in the fragilities and it had a non-negligible impact on the collapse probabilities for this case study building.
dc.description.funderCIGIDEN
dc.description.funderMario Lafontaine
dc.description.funderResearch Center for Integrated Disaster Risk Management
dc.description.funderFONDECYT
dc.description.funderANID
dc.fuente.origenORCID
dc.identifier.scopusidSCOPUS_ID:85138464799
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/103487
dc.information.autorucEscuela de Construcción Civil; Araya Letelier, Gerardo Andrés; 0000-0003-4252-1341; 124980
dc.information.autorucEscuela de Ingeniería; Lopéz-García González, Diego; S/I; 1004185
dc.language.isoen
dc.nota.accesocontenido parcial
dc.publisherEarthquake Engineering Research Institute
dc.relation.ispartof12th National Conference on Earthquake Engineering, NCEE 2022
dc.revista12th National Conference on Earthquake Engineering, NCEE 2022
dc.rightsacceso restringido
dc.titleInfluence of statistical approaches on structural collapse potential assessment
dc.typecomunicación de congreso
sipa.codpersvinculados124980
sipa.codpersvinculados1004185
sipa.trazabilidadSCOPUS;10-11-2022
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