Application of Mode-Adaptive Bidirectional Pushover Analysis to an Irregular Reinforced Concrete Building Retrofitted via Base Isolation

In this article, the applicability of mode-adaptive bidirectional pushover analysis (MABPA) to base-isolated irregular buildings was evaluated. The point of the updated MABPA is that the peaks of the first and second modal responses are predicted considering the energy balance during a half cycle of...

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Autores principales:	Kenji Fujii, Takumi Masuda
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	seismic isolation asymmetric building mode-adaptive bidirectional pushover analysis (MABPA) seismic retrofit momentary energy input Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/8b9e739210a245d18e92b6c098ed87ba
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spelling	oai:doaj.org-article:8b9e739210a245d18e92b6c098ed87ba2021-11-11T14:58:20ZApplication of Mode-Adaptive Bidirectional Pushover Analysis to an Irregular Reinforced Concrete Building Retrofitted via Base Isolation10.3390/app112198292076-3417https://doaj.org/article/8b9e739210a245d18e92b6c098ed87ba2021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/9829https://doaj.org/toc/2076-3417In this article, the applicability of mode-adaptive bidirectional pushover analysis (MABPA) to base-isolated irregular buildings was evaluated. The point of the updated MABPA is that the peaks of the first and second modal responses are predicted considering the energy balance during a half cycle of the structural response. In the numerical examples, the main building of the former Uto City Hall, which was severely damaged in the 2016 Kumamoto earthquake, was investigated as a case study for the retrofitting of an irregular reinforced concrete building using the base-isolation technique. The comparisons between the predicted peak response by MABPA and nonlinear time-history analysis results showed that the peak relative displacement can be properly predicted by MABPA. The results also showed that the performance of the retrofitted building models was satisfactory for the ground motion considered in this study, including the recorded motions in the 2016 Kumamoto earthquake.Kenji FujiiTakumi MasudaMDPI AGarticleseismic isolationasymmetric buildingmode-adaptive bidirectional pushover analysis (MABPA)seismic retrofitmomentary energy inputTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 9829, p 9829 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	seismic isolation asymmetric building mode-adaptive bidirectional pushover analysis (MABPA) seismic retrofit momentary energy input Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	seismic isolation asymmetric building mode-adaptive bidirectional pushover analysis (MABPA) seismic retrofit momentary energy input Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Kenji Fujii Takumi Masuda Application of Mode-Adaptive Bidirectional Pushover Analysis to an Irregular Reinforced Concrete Building Retrofitted via Base Isolation
description	In this article, the applicability of mode-adaptive bidirectional pushover analysis (MABPA) to base-isolated irregular buildings was evaluated. The point of the updated MABPA is that the peaks of the first and second modal responses are predicted considering the energy balance during a half cycle of the structural response. In the numerical examples, the main building of the former Uto City Hall, which was severely damaged in the 2016 Kumamoto earthquake, was investigated as a case study for the retrofitting of an irregular reinforced concrete building using the base-isolation technique. The comparisons between the predicted peak response by MABPA and nonlinear time-history analysis results showed that the peak relative displacement can be properly predicted by MABPA. The results also showed that the performance of the retrofitted building models was satisfactory for the ground motion considered in this study, including the recorded motions in the 2016 Kumamoto earthquake.
format	article
author	Kenji Fujii Takumi Masuda
author_facet	Kenji Fujii Takumi Masuda
author_sort	Kenji Fujii
title	Application of Mode-Adaptive Bidirectional Pushover Analysis to an Irregular Reinforced Concrete Building Retrofitted via Base Isolation
title_short	Application of Mode-Adaptive Bidirectional Pushover Analysis to an Irregular Reinforced Concrete Building Retrofitted via Base Isolation
title_full	Application of Mode-Adaptive Bidirectional Pushover Analysis to an Irregular Reinforced Concrete Building Retrofitted via Base Isolation
title_fullStr	Application of Mode-Adaptive Bidirectional Pushover Analysis to an Irregular Reinforced Concrete Building Retrofitted via Base Isolation
title_full_unstemmed	Application of Mode-Adaptive Bidirectional Pushover Analysis to an Irregular Reinforced Concrete Building Retrofitted via Base Isolation
title_sort	application of mode-adaptive bidirectional pushover analysis to an irregular reinforced concrete building retrofitted via base isolation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8b9e739210a245d18e92b6c098ed87ba
work_keys_str_mv	AT kenjifujii applicationofmodeadaptivebidirectionalpushoveranalysistoanirregularreinforcedconcretebuildingretrofittedviabaseisolation AT takumimasuda applicationofmodeadaptivebidirectionalpushoveranalysistoanirregularreinforcedconcretebuildingretrofittedviabaseisolation
_version_	1718437907624099840

Application of Mode-Adaptive Bidirectional Pushover Analysis to an Irregular Reinforced Concrete Building Retrofitted via Base Isolation

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