The evaluation of strengthening effect reinforced concrete structures with FRP on seismic dynamic performance of the structures

Nowadays, Strengthening of existing structures was conducted by FRP wrapping in Iran in order to increase capacity and ductility particularly for columns resulting in an increase in the strength of concrete and improve structure behaviour. In this study, RC strengthened (with FRP) and un-strengthene...

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Autores principales:	Mohammad Kazem Sharbatdar, Hakime Parsa
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2019
Materias:	"strengthening with cfrp" "seismic performance" "capacity curve" "spectral acceleration" "spectral displacement" "effective damping" Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/d08339d3ad3e4d379d579e7d0d542ef2
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spelling	oai:doaj.org-article:d08339d3ad3e4d379d579e7d0d542ef22021-11-08T15:52:40ZThe evaluation of strengthening effect reinforced concrete structures with FRP on seismic dynamic performance of the structures2476-39772538-261610.22065/jsce.2017.97090.1312https://doaj.org/article/d08339d3ad3e4d379d579e7d0d542ef22019-08-01T00:00:00Zhttps://www.jsce.ir/article_54367_8b6d932f0360f80d6f17961f8c5533d0.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Nowadays, Strengthening of existing structures was conducted by FRP wrapping in Iran in order to increase capacity and ductility particularly for columns resulting in an increase in the strength of concrete and improve structure behaviour. In this study, RC strengthened (with FRP) and un-strengthened buildings with 3, 5, 10 & 15 stories and 1 to 5 bay were considered. By performing linear and non-linear static analyses, seismic parameters such as acceleration and spectral displacement, damping and effective period of structure in performance points and capacity curves were discussed. The results indicated that the confinement of beams and columns of RC structures with CFRP sheets will improve the absorption and dissipation energy of structure and the stiffness and initial gradient of retrofitted structure with CFRP were about 1.5 to 2.5 times of those of original un-strengthened structure. And also via strengthening of structure with CFRP sheets, the spectral acceleration was increased and the spectral displacement, damping ratio and effective period were decreased, resulting in increasing seismic loading capacity. However, the structure retrofitted by CFRP with 3-stories, 4 bays showed the best performance in the term of stiffness, more spectral acceleration and spectral displacement and less effective period, but in the term of damping and energy absorption the best performance was for the structure with 10-stories, 4 bays.Mohammad Kazem SharbatdarHakime ParsaIranian Society of Structrual Engineering (ISSE)article"strengthening with cfrp""seismic performance""capacity curve""spectral acceleration""spectral displacement""effective damping"Bridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 6, Iss شماره ویژه 2, Pp 225-244 (2019)
institution	DOAJ
collection	DOAJ
language	FA
topic	"strengthening with cfrp" "seismic performance" "capacity curve" "spectral acceleration" "spectral displacement" "effective damping" Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	"strengthening with cfrp" "seismic performance" "capacity curve" "spectral acceleration" "spectral displacement" "effective damping" Bridge engineering TG1-470 Building construction TH1-9745 Mohammad Kazem Sharbatdar Hakime Parsa The evaluation of strengthening effect reinforced concrete structures with FRP on seismic dynamic performance of the structures
description	Nowadays, Strengthening of existing structures was conducted by FRP wrapping in Iran in order to increase capacity and ductility particularly for columns resulting in an increase in the strength of concrete and improve structure behaviour. In this study, RC strengthened (with FRP) and un-strengthened buildings with 3, 5, 10 & 15 stories and 1 to 5 bay were considered. By performing linear and non-linear static analyses, seismic parameters such as acceleration and spectral displacement, damping and effective period of structure in performance points and capacity curves were discussed. The results indicated that the confinement of beams and columns of RC structures with CFRP sheets will improve the absorption and dissipation energy of structure and the stiffness and initial gradient of retrofitted structure with CFRP were about 1.5 to 2.5 times of those of original un-strengthened structure. And also via strengthening of structure with CFRP sheets, the spectral acceleration was increased and the spectral displacement, damping ratio and effective period were decreased, resulting in increasing seismic loading capacity. However, the structure retrofitted by CFRP with 3-stories, 4 bays showed the best performance in the term of stiffness, more spectral acceleration and spectral displacement and less effective period, but in the term of damping and energy absorption the best performance was for the structure with 10-stories, 4 bays.
format	article
author	Mohammad Kazem Sharbatdar Hakime Parsa
author_facet	Mohammad Kazem Sharbatdar Hakime Parsa
author_sort	Mohammad Kazem Sharbatdar
title	The evaluation of strengthening effect reinforced concrete structures with FRP on seismic dynamic performance of the structures
title_short	The evaluation of strengthening effect reinforced concrete structures with FRP on seismic dynamic performance of the structures
title_full	The evaluation of strengthening effect reinforced concrete structures with FRP on seismic dynamic performance of the structures
title_fullStr	The evaluation of strengthening effect reinforced concrete structures with FRP on seismic dynamic performance of the structures
title_full_unstemmed	The evaluation of strengthening effect reinforced concrete structures with FRP on seismic dynamic performance of the structures
title_sort	evaluation of strengthening effect reinforced concrete structures with frp on seismic dynamic performance of the structures
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2019
url	https://doaj.org/article/d08339d3ad3e4d379d579e7d0d542ef2
work_keys_str_mv	AT mohammadkazemsharbatdar theevaluationofstrengtheningeffectreinforcedconcretestructureswithfrponseismicdynamicperformanceofthestructures AT hakimeparsa theevaluationofstrengtheningeffectreinforcedconcretestructureswithfrponseismicdynamicperformanceofthestructures AT mohammadkazemsharbatdar evaluationofstrengtheningeffectreinforcedconcretestructureswithfrponseismicdynamicperformanceofthestructures AT hakimeparsa evaluationofstrengtheningeffectreinforcedconcretestructureswithfrponseismicdynamicperformanceofthestructures
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The evaluation of strengthening effect reinforced concrete structures with FRP on seismic dynamic performance of the structures

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