Nonlinear dynamic analysis of steel buildings subjected to earthquakes

Abstract: Non-linear dynamic analyses methods generally provide a more adjusted modeling of the structural response for strong seismic events. Such a dynamic seismic non-linear evaluation took place for six buildings: two 5 story-height, two 12 story-height and two 20 story-high and with a regular c...

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Autores principales:	Núñez,F., Ruiz,D., Cortés,J
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Departamento de Ingeniería y Gestión de la Construcción 2021
Materias:	nonlinear dynamic analysis seismic behavior steel buildings seismic soil response steel moment resisting frames
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-50732021000200173
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spelling	oai:scielo:S0718-507320210002001732021-10-05Nonlinear dynamic analysis of steel buildings subjected to earthquakesNúñez,F.Ruiz,D.Cortés,J nonlinear dynamic analysis seismic behavior steel buildings seismic soil response steel moment resisting frames Abstract: Non-linear dynamic analyses methods generally provide a more adjusted modeling of the structural response for strong seismic events. Such a dynamic seismic non-linear evaluation took place for six buildings: two 5 story-height, two 12 story-height and two 20 story-high and with a regular configuration. The structural systems of the buildings complied to the NSR-10 (Colombian earthquake resistant standard) and with the seismic microzoning of Bogotá. The analysis done to the previous structures used non-linear methodologies along with two time- histories corresponding to two well recorded earthquakes: Quetame earthquake circa 2008 and the Mesa de los Santos earthquake circa 2015. Said events characterized by records at Bogotá D.C. by the RAB (network of accelerometers of Bogotá). A structural evaluation using the nonlinear approach of a finite element software and following the FEMA 356 guidelines, the structural response to 81 seismic signals from the Mesa de los Santos earthquake and 78 from the Quetame earthquake helped in understanding the simulated behavior. Said signals included three perpendicular ground movements corresponding to the north-south, east-west and vertical directions. With the results of the non-linear dynamic analysis, plastic hinges helped in understanding the nonlinear structural response when the earthquakes hit separately. Based on the results, sway maps showing the results in the Y and X directions, clustered the most affected areas of the city. At the same time, a thorough analysis of moment connections at the first floor, at an intermediate floor and at the last floor of the buildings showed the capacity of the original design. The results suggest that steel buildings have a better structural performance when compared with reinforced concrete buildings that were also analyzed (nonlinear analysis) with real earthquake (in soft soils) in previous investigations.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Departamento de Ingeniería y Gestión de la ConstrucciónRevista ingeniería de construcción v.36 n.2 20212021-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-50732021000200173en10.4067/S0718-50732021000200173
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	nonlinear dynamic analysis seismic behavior steel buildings seismic soil response steel moment resisting frames
spellingShingle	nonlinear dynamic analysis seismic behavior steel buildings seismic soil response steel moment resisting frames Núñez,F. Ruiz,D. Cortés,J Nonlinear dynamic analysis of steel buildings subjected to earthquakes
description	Abstract: Non-linear dynamic analyses methods generally provide a more adjusted modeling of the structural response for strong seismic events. Such a dynamic seismic non-linear evaluation took place for six buildings: two 5 story-height, two 12 story-height and two 20 story-high and with a regular configuration. The structural systems of the buildings complied to the NSR-10 (Colombian earthquake resistant standard) and with the seismic microzoning of Bogotá. The analysis done to the previous structures used non-linear methodologies along with two time- histories corresponding to two well recorded earthquakes: Quetame earthquake circa 2008 and the Mesa de los Santos earthquake circa 2015. Said events characterized by records at Bogotá D.C. by the RAB (network of accelerometers of Bogotá). A structural evaluation using the nonlinear approach of a finite element software and following the FEMA 356 guidelines, the structural response to 81 seismic signals from the Mesa de los Santos earthquake and 78 from the Quetame earthquake helped in understanding the simulated behavior. Said signals included three perpendicular ground movements corresponding to the north-south, east-west and vertical directions. With the results of the non-linear dynamic analysis, plastic hinges helped in understanding the nonlinear structural response when the earthquakes hit separately. Based on the results, sway maps showing the results in the Y and X directions, clustered the most affected areas of the city. At the same time, a thorough analysis of moment connections at the first floor, at an intermediate floor and at the last floor of the buildings showed the capacity of the original design. The results suggest that steel buildings have a better structural performance when compared with reinforced concrete buildings that were also analyzed (nonlinear analysis) with real earthquake (in soft soils) in previous investigations.
author	Núñez,F. Ruiz,D. Cortés,J
author_facet	Núñez,F. Ruiz,D. Cortés,J
author_sort	Núñez,F.
title	Nonlinear dynamic analysis of steel buildings subjected to earthquakes
title_short	Nonlinear dynamic analysis of steel buildings subjected to earthquakes
title_full	Nonlinear dynamic analysis of steel buildings subjected to earthquakes
title_fullStr	Nonlinear dynamic analysis of steel buildings subjected to earthquakes
title_full_unstemmed	Nonlinear dynamic analysis of steel buildings subjected to earthquakes
title_sort	nonlinear dynamic analysis of steel buildings subjected to earthquakes
publisher	Pontificia Universidad Católica de Chile. Departamento de Ingeniería y Gestión de la Construcción
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-50732021000200173
work_keys_str_mv	AT nunezf nonlineardynamicanalysisofsteelbuildingssubjectedtoearthquakes AT ruizd nonlineardynamicanalysisofsteelbuildingssubjectedtoearthquakes AT cortesj nonlineardynamicanalysisofsteelbuildingssubjectedtoearthquakes
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Nonlinear dynamic analysis of steel buildings subjected to earthquakes

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