Seismic collapse performance of high-rise RC dual system buildings in subduction zones

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dc.contributor.authorGallegos, Marco F.
dc.contributor.authorAraya-Letelier, Gerardo
dc.contributor.authorLopez-Garcia, Diego
dc.contributor.authorParra, Pablo F.
dc.date.accessioned2025-01-20T20:14:58Z
dc.date.available2025-01-20T20:14:58Z
dc.date.issued2023
dc.description.abstractThe satisfactory 'collapse prevention' performance level of reinforced concrete (RC) buildings has been widely recognized during recent earthquakes in Chile. However, there is limited research on the actual level of seismic collapse protection. In this study, the seismic collapse behavior of high-rise RC dual wall-frame buildings representative of the Chilean inventory is quantitatively eval-uated. A suite of four 16-story structural archetypes was carefully selected and code-based designed assuming two different locations (i.e., high and moderate seismicity zones) and two different soil types (i.e., very stiff and moderately stiff soils). The archetypes were analyzed considering the latest developments in performance-based earthquake engineering implementing incremental dynamic analyses for 3D nonlinear models with sets of Chilean subduction ground motions. Results, expressed in terms of the probability of collapse conditioned on the Maximum Considered Earthquake (MCE) hazard level (<10%) and the collapse probability in 50 years (<1%), showed that all archetypes fully met the targets specified by ASCE 7 for an acceptable 'life safety' risk level. These results indeed explain why a very small number of RC building collapses was observed in the recent megathrust earthquakes (Mw>8.0) in Chile. Nevertheless, it was also found that the seismic collapse performance is not uniform, due mainly to the soil type. This observation suggests that the design spectra indicated by the Chilean seismic design code for buildings might need to be revised.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.cscm.2023.e02042
dc.identifier.issn2214-5095
dc.identifier.urihttps://doi.org/10.1016/j.cscm.2023.e02042
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/92232
dc.identifier.wosidWOS:000979633300001
dc.language.isoen
dc.revistaCase studies in construction materials
dc.rightsacceso restringido
dc.subjectCollapse performance
dc.subjectHigh-rise building
dc.subjectRC dual system
dc.subjectIncremental dynamic analysis
dc.subjectSubduction zone
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleSeismic collapse performance of high-rise RC dual system buildings in subduction zones
dc.typeartículo
dc.volumen18
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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