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Título del libro: 12th National Conference On Earthquake Engineering, Ncee 2022
Título del capítulo: Seismic risk of soft-story structures rehabilitated with control systems in Mexico City

Autores UNAM:
MIGUEL ANGEL JAIMES TELLEZ;
Autores externos:

Idioma:

Año de publicación:
2022
Palabras clave:

Control systems; Earthquake engineering; Engineering geology; 2-structure; Demand risks; Fragility function; Inter-story drift ratios; Mexico City; Seismic motions; Seismic protection; Seismic risk; Simple++; Soft story; Earthquakes


Resumen:

This study discusses the seismic risk of typical existing low-and medium-rise dwelling structures with a soft-story rehabilitated with control systems for seismic protection at their soft first-story during earthquakes in Mexico City. These structures are subject to seismic motions representative of seismicity in Mexico City. The seismic response, fragility functions, and maximum interstory drift ratio demand risk were examined for three types of configurations, namely: (1) structure simple supported on solitary columns; (2) structure rehabilitated with viscous dampers; and (3) structure rehabilitated with buckling restricted braces. These results should aid designers in the selection of appropriate configurations or mitigation measures for a structure with open soft first story in earthquake-prone regions, such as in Mexico City. Further, the results of this study conclude that the structural reliability of the structures with control systems at their first story is higher than structure simple supported on solitary columns in Mexico City. © 2022 12th National Conference on Earthquake Engineering, NCEE 2022 All rights reserved.


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