Comparison between the behavior of RCS and Concrete Moment Frames under Near Fault Earthquakes

The composite RCS moment resisting frame, includes concrete columns and steel beams, it has some advantages in comparison to ordinary steel and concrete moment resisting frames. Previous studies have shown that these systems, in case of preserving sufficient strength and needed ductility in seismic...

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Autores principales:	fereshteh khorasani, mohsen gerami, ali kheyroddin
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2019
Materias:	composite moment frame (rcs) near fault earthquake far fault earthquake nonlinear dynamic analysis steel moment frame concrete column Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/f90b0e8116ff4522b1312218a6f73472
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spelling	oai:doaj.org-article:f90b0e8116ff4522b1312218a6f734722021-11-08T15:51:06ZComparison between the behavior of RCS and Concrete Moment Frames under Near Fault Earthquakes2476-39772538-261610.22065/jsce.2017.69420.1014https://doaj.org/article/f90b0e8116ff4522b1312218a6f734722019-02-01T00:00:00Zhttps://www.jsce.ir/article_46867_587199066367d47ddd038b2ff686259c.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616The composite RCS moment resisting frame, includes concrete columns and steel beams, it has some advantages in comparison to ordinary steel and concrete moment resisting frames. Previous studies have shown that these systems, in case of preserving sufficient strength and needed ductility in seismic condition, could be effective in design and construction. In the previous research on these structures, studies were made on the frame and RCS connections but there has not been any study on the seismic assessment of the RCS structure with time history and for the near fault earthquakes considering the effect of span length, for adopting this type of structure. Investigating the structure behavior under near the fault earthquake, due to the special nature and characteristics of these earthquakes in comparison to the far fault earthquakes seems to be essential. For this purpose 5 composite RCS intermediate moment resisting frames with 4, 7, 10, 15 and 20 stories and 5 spans were designed and then nonlinear dynamic analysis was performed on the structures using the OpenSees software. The obtained results in this research show that with increase in the number of stories the displacement of composite structure decreases with respect to the steel structure. The difference due to near and far fault earthquakes in calculation of stories displacement and drift in steel structures is far lower with respect to this difference in composite structures. This shows that effectiveness of near fault records on composite structures is more than the ordinary steel structures. Increase in the span length together with increase in the structure height would diminish the criticality of near fault record concerning the displacement of a composite structure which its columns have been made similar to the steel structure.fereshteh khorasanimohsen geramiali kheyroddinIranian Society of Structrual Engineering (ISSE)articlecomposite moment frame (rcs)near fault earthquakefar fault earthquakenonlinear dynamic analysissteel moment frameconcrete columnBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 5, Iss شماره ویژه 4, Pp 217-234 (2019)
institution	DOAJ
collection	DOAJ
language	FA
topic	composite moment frame (rcs) near fault earthquake far fault earthquake nonlinear dynamic analysis steel moment frame concrete column Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	composite moment frame (rcs) near fault earthquake far fault earthquake nonlinear dynamic analysis steel moment frame concrete column Bridge engineering TG1-470 Building construction TH1-9745 fereshteh khorasani mohsen gerami ali kheyroddin Comparison between the behavior of RCS and Concrete Moment Frames under Near Fault Earthquakes
description	The composite RCS moment resisting frame, includes concrete columns and steel beams, it has some advantages in comparison to ordinary steel and concrete moment resisting frames. Previous studies have shown that these systems, in case of preserving sufficient strength and needed ductility in seismic condition, could be effective in design and construction. In the previous research on these structures, studies were made on the frame and RCS connections but there has not been any study on the seismic assessment of the RCS structure with time history and for the near fault earthquakes considering the effect of span length, for adopting this type of structure. Investigating the structure behavior under near the fault earthquake, due to the special nature and characteristics of these earthquakes in comparison to the far fault earthquakes seems to be essential. For this purpose 5 composite RCS intermediate moment resisting frames with 4, 7, 10, 15 and 20 stories and 5 spans were designed and then nonlinear dynamic analysis was performed on the structures using the OpenSees software. The obtained results in this research show that with increase in the number of stories the displacement of composite structure decreases with respect to the steel structure. The difference due to near and far fault earthquakes in calculation of stories displacement and drift in steel structures is far lower with respect to this difference in composite structures. This shows that effectiveness of near fault records on composite structures is more than the ordinary steel structures. Increase in the span length together with increase in the structure height would diminish the criticality of near fault record concerning the displacement of a composite structure which its columns have been made similar to the steel structure.
format	article
author	fereshteh khorasani mohsen gerami ali kheyroddin
author_facet	fereshteh khorasani mohsen gerami ali kheyroddin
author_sort	fereshteh khorasani
title	Comparison between the behavior of RCS and Concrete Moment Frames under Near Fault Earthquakes
title_short	Comparison between the behavior of RCS and Concrete Moment Frames under Near Fault Earthquakes
title_full	Comparison between the behavior of RCS and Concrete Moment Frames under Near Fault Earthquakes
title_fullStr	Comparison between the behavior of RCS and Concrete Moment Frames under Near Fault Earthquakes
title_full_unstemmed	Comparison between the behavior of RCS and Concrete Moment Frames under Near Fault Earthquakes
title_sort	comparison between the behavior of rcs and concrete moment frames under near fault earthquakes
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2019
url	https://doaj.org/article/f90b0e8116ff4522b1312218a6f73472
work_keys_str_mv	AT fereshtehkhorasani comparisonbetweenthebehaviorofrcsandconcretemomentframesundernearfaultearthquakes AT mohsengerami comparisonbetweenthebehaviorofrcsandconcretemomentframesundernearfaultearthquakes AT alikheyroddin comparisonbetweenthebehaviorofrcsandconcretemomentframesundernearfaultearthquakes
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Comparison between the behavior of RCS and Concrete Moment Frames under Near Fault Earthquakes

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