Damage Evaluation of RC Columns strengthened with Novel Fiber Composites under Blast Loads using Pressure – Impulse Diagrams

Blast loads may result Irretrievable damages in structures due to their high amount of applied energy to them during a short period of time. Strengthening and rehabilitation of the structures subject to these sort of loads would be a proper approach to mitigate these damages. Among the available app...

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Autores principales:	Hashem Jahangir, Mohammad Reza Moarefzadeh
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2019
Materias:	pressure – impulse diagram damage evaluation blast loads novel fiber composites rc strengthened columns Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/7468253b6d274348b342826da547adc8
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spelling	oai:doaj.org-article:7468253b6d274348b342826da547adc82021-11-08T15:52:56ZDamage Evaluation of RC Columns strengthened with Novel Fiber Composites under Blast Loads using Pressure – Impulse Diagrams2476-39772538-261610.22065/jsce.2018.116964.1445https://doaj.org/article/7468253b6d274348b342826da547adc82019-12-01T00:00:00Zhttps://www.jsce.ir/article_65632_baa9624abf57918f62a436e9441b0860.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Blast loads may result Irretrievable damages in structures due to their high amount of applied energy to them during a short period of time. Strengthening and rehabilitation of the structures subject to these sort of loads would be a proper approach to mitigate these damages. Among the available approaches, use of composites so-called Fiber Reinforced Polymers (FRPs), because of their desire properties such as ease in installation and high strength to weight ratio, has been considered the most common solution in recent years. These composites, however, possesses some disadvantages such as low resistance against fire, low glass transition temperature, difﬁculties in application at low temperatures, impossibility of application on wet surfaces and lack of vapor permeability which have led to use innovative composite materials as alternative. These are normally made of cementitious matrix reinforced by continuous ﬁbers (FRCM). These composites with cement based matrices have good mechanical performances, excellent resistance to high temperature and ﬁre, and also good vapor permeability. Moreover, they can be applied on wet surfaces and in cases of low temperature. Therefore, FRCM materials may constitute an alternative to FRP materials for the strengthening of RC structures. In this paper, performance of RC columns which are subject to blast loading and strengthened with FRP and FRCM composites is investigated using Pressure-Impulse (P-I) diagrams. The results obtained in this study demonstrate that strengthening of structures by FRCM is more efficient in comparison to that of FRP in most cases of damages and therefore could be implemented to protect structures better against blast loads.Hashem JahangirMohammad Reza MoarefzadehIranian Society of Structrual Engineering (ISSE)articlepressure – impulse diagramdamage evaluationblast loadsnovel fiber compositesrc strengthened columnsBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 6, Iss شماره ویژه 4, Pp 181-204 (2019)
institution	DOAJ
collection	DOAJ
language	FA
topic	pressure – impulse diagram damage evaluation blast loads novel fiber composites rc strengthened columns Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	pressure – impulse diagram damage evaluation blast loads novel fiber composites rc strengthened columns Bridge engineering TG1-470 Building construction TH1-9745 Hashem Jahangir Mohammad Reza Moarefzadeh Damage Evaluation of RC Columns strengthened with Novel Fiber Composites under Blast Loads using Pressure – Impulse Diagrams
description	Blast loads may result Irretrievable damages in structures due to their high amount of applied energy to them during a short period of time. Strengthening and rehabilitation of the structures subject to these sort of loads would be a proper approach to mitigate these damages. Among the available approaches, use of composites so-called Fiber Reinforced Polymers (FRPs), because of their desire properties such as ease in installation and high strength to weight ratio, has been considered the most common solution in recent years. These composites, however, possesses some disadvantages such as low resistance against fire, low glass transition temperature, difﬁculties in application at low temperatures, impossibility of application on wet surfaces and lack of vapor permeability which have led to use innovative composite materials as alternative. These are normally made of cementitious matrix reinforced by continuous ﬁbers (FRCM). These composites with cement based matrices have good mechanical performances, excellent resistance to high temperature and ﬁre, and also good vapor permeability. Moreover, they can be applied on wet surfaces and in cases of low temperature. Therefore, FRCM materials may constitute an alternative to FRP materials for the strengthening of RC structures. In this paper, performance of RC columns which are subject to blast loading and strengthened with FRP and FRCM composites is investigated using Pressure-Impulse (P-I) diagrams. The results obtained in this study demonstrate that strengthening of structures by FRCM is more efficient in comparison to that of FRP in most cases of damages and therefore could be implemented to protect structures better against blast loads.
format	article
author	Hashem Jahangir Mohammad Reza Moarefzadeh
author_facet	Hashem Jahangir Mohammad Reza Moarefzadeh
author_sort	Hashem Jahangir
title	Damage Evaluation of RC Columns strengthened with Novel Fiber Composites under Blast Loads using Pressure – Impulse Diagrams
title_short	Damage Evaluation of RC Columns strengthened with Novel Fiber Composites under Blast Loads using Pressure – Impulse Diagrams
title_full	Damage Evaluation of RC Columns strengthened with Novel Fiber Composites under Blast Loads using Pressure – Impulse Diagrams
title_fullStr	Damage Evaluation of RC Columns strengthened with Novel Fiber Composites under Blast Loads using Pressure – Impulse Diagrams
title_full_unstemmed	Damage Evaluation of RC Columns strengthened with Novel Fiber Composites under Blast Loads using Pressure – Impulse Diagrams
title_sort	damage evaluation of rc columns strengthened with novel fiber composites under blast loads using pressure – impulse diagrams
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2019
url	https://doaj.org/article/7468253b6d274348b342826da547adc8
work_keys_str_mv	AT hashemjahangir damageevaluationofrccolumnsstrengthenedwithnovelfibercompositesunderblastloadsusingpressureimpulsediagrams AT mohammadrezamoarefzadeh damageevaluationofrccolumnsstrengthenedwithnovelfibercompositesunderblastloadsusingpressureimpulsediagrams
_version_	1718441673968582656

Damage Evaluation of RC Columns strengthened with Novel Fiber Composites under Blast Loads using Pressure – Impulse Diagrams

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