Sensitivity analysis of RC frame failure time in fire conditions after removal column under progressive collapse

Consecutive loads can be a serious threat to the safety of structures. Abrupt removal of elemental elements such as columns is one of the causes of progressive failure in structures. The local breakdown caused by the sudden removal of the column can affect the behavior of the structures of successiv...

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Autores principales:	Majid Moradi, Hamidreza Tavakoli, Gholamreza Abdolahzade
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2021
Materias:	progressive collapse fire failure time sensitivity analysis uncertainty Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/e83ae36ff1d747bca82a65de4db8dea8
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spelling	oai:doaj.org-article:e83ae36ff1d747bca82a65de4db8dea82021-11-08T15:54:32ZSensitivity analysis of RC frame failure time in fire conditions after removal column under progressive collapse2476-39772538-261610.22065/jsce.2019.183958.1850https://doaj.org/article/e83ae36ff1d747bca82a65de4db8dea82021-04-01T00:00:00Zhttps://www.jsce.ir/article_88289_17cc4e28057a947508bfeb239432a9ba.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Consecutive loads can be a serious threat to the safety of structures. Abrupt removal of elemental elements such as columns is one of the causes of progressive failure in structures. The local breakdown caused by the sudden removal of the column can affect the behavior of the structures of successive courts. One of the loads that threatens the safety of the structure over the life of the structure is the fire.When a structure can withstand the load, one of the main factors in the safety of structures against thermal loads. Local loopholes in the structure, including the sudden removal of barrier elements, can affect the stability of structures against fire load as two successive events. In this research, the susceptibility of the RC frame to the stability of the continuous loading of the column and the subsequent fire is compared to the random variables.The 7-story concrete frame is modeled after mechanical design and is subject to the sudden removal of the column in different situations. Several parameters have been considered as random variables, and two methods of Monte Carlo and second-order second-order sensitivity analysis (FOSM) have been used for sensitivity analysis. Sensitivity analysis in a concrete frame for the analysis of dynamic duct and thermal analysis has been done separately. The results show that in the sudden removal of the column, the dead load, and in the subsequent fire scenario, the dead load and reinforcement coatings have the most sensitivity to other parameters. Also, the maximum sensitivity error of the FOSM method was calculated to be 11% compared to the Monte Carlo method.Majid MoradiHamidreza TavakoliGholamreza AbdolahzadeIranian Society of Structrual Engineering (ISSE)articleprogressive collapsefirefailure timesensitivity analysisuncertaintyBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 8, Iss 2, Pp 264-279 (2021)
institution	DOAJ
collection	DOAJ
language	FA
topic	progressive collapse fire failure time sensitivity analysis uncertainty Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	progressive collapse fire failure time sensitivity analysis uncertainty Bridge engineering TG1-470 Building construction TH1-9745 Majid Moradi Hamidreza Tavakoli Gholamreza Abdolahzade Sensitivity analysis of RC frame failure time in fire conditions after removal column under progressive collapse
description	Consecutive loads can be a serious threat to the safety of structures. Abrupt removal of elemental elements such as columns is one of the causes of progressive failure in structures. The local breakdown caused by the sudden removal of the column can affect the behavior of the structures of successive courts. One of the loads that threatens the safety of the structure over the life of the structure is the fire.When a structure can withstand the load, one of the main factors in the safety of structures against thermal loads. Local loopholes in the structure, including the sudden removal of barrier elements, can affect the stability of structures against fire load as two successive events. In this research, the susceptibility of the RC frame to the stability of the continuous loading of the column and the subsequent fire is compared to the random variables.The 7-story concrete frame is modeled after mechanical design and is subject to the sudden removal of the column in different situations. Several parameters have been considered as random variables, and two methods of Monte Carlo and second-order second-order sensitivity analysis (FOSM) have been used for sensitivity analysis. Sensitivity analysis in a concrete frame for the analysis of dynamic duct and thermal analysis has been done separately. The results show that in the sudden removal of the column, the dead load, and in the subsequent fire scenario, the dead load and reinforcement coatings have the most sensitivity to other parameters. Also, the maximum sensitivity error of the FOSM method was calculated to be 11% compared to the Monte Carlo method.
format	article
author	Majid Moradi Hamidreza Tavakoli Gholamreza Abdolahzade
author_facet	Majid Moradi Hamidreza Tavakoli Gholamreza Abdolahzade
author_sort	Majid Moradi
title	Sensitivity analysis of RC frame failure time in fire conditions after removal column under progressive collapse
title_short	Sensitivity analysis of RC frame failure time in fire conditions after removal column under progressive collapse
title_full	Sensitivity analysis of RC frame failure time in fire conditions after removal column under progressive collapse
title_fullStr	Sensitivity analysis of RC frame failure time in fire conditions after removal column under progressive collapse
title_full_unstemmed	Sensitivity analysis of RC frame failure time in fire conditions after removal column under progressive collapse
title_sort	sensitivity analysis of rc frame failure time in fire conditions after removal column under progressive collapse
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2021
url	https://doaj.org/article/e83ae36ff1d747bca82a65de4db8dea8
work_keys_str_mv	AT majidmoradi sensitivityanalysisofrcframefailuretimeinfireconditionsafterremovalcolumnunderprogressivecollapse AT hamidrezatavakoli sensitivityanalysisofrcframefailuretimeinfireconditionsafterremovalcolumnunderprogressivecollapse AT gholamrezaabdolahzade sensitivityanalysisofrcframefailuretimeinfireconditionsafterremovalcolumnunderprogressivecollapse
_version_	1718441620433534976

Sensitivity analysis of RC frame failure time in fire conditions after removal column under progressive collapse

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