Steel Reinforced Self-Compacting Concrete (SCC) Cantilever Beams: Bond Behaviour in Poor Condition Zones

Abstract Previous investigations carried out on reinforced self-compacted concrete (SCC) beams have reported contradictory results on reinforcement bond behaviour occurring in the zones defined for good bond conditions according to Eurocode2. Cantilevered SCC beams’ critical upper tension reinforcem...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Wael Mohamed Montaser [verfasserIn] Ibrahim Galal Shaaban [verfasserIn] Joseph P. Rizzuto [verfasserIn] Amr Hussein Zaher [verfasserIn] Ahmed Rashad [verfasserIn] Shorouk Mohamed El Sadany [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Self-compacting concrete Bond strength Bond stress Lap length of steel bars in tension Empirical equations Concrete cover

Übergeordnetes Werk:	In: International Journal of Concrete Structures and Materials - SpringerOpen, 2013, 17(2023), 1, Seite 21
Übergeordnetes Werk:	volume:17 ; year:2023 ; number:1 ; pages:21

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1186/s40069-023-00581-9

Katalog-ID:	DOAJ087762102

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245	1	0	\|a Steel Reinforced Self-Compacting Concrete (SCC) Cantilever Beams: Bond Behaviour in Poor Condition Zones
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520			\|a Abstract Previous investigations carried out on reinforced self-compacted concrete (SCC) beams have reported contradictory results on reinforcement bond behaviour occurring in the zones defined for good bond conditions according to Eurocode2. Cantilevered SCC beams’ critical upper tension reinforcement bond behaviour has previously had limited reporting. In this study, the bond behaviour in normally vibrated concrete (NVC) and self-compacted concrete (SCC) in poor conditions zones are compared and the differences are highlighted. The effect of four parameters, including (i) concrete type (SCC and NVC), (ii) characteristic strength of SCC, (iii) lap splice length, and (iv) depth of concrete cover for the reinforcement is investigated. It was found that for the studied beams, increasing splice length improved the energy absorption and changed the failure mode to a more ductile manner even at the poor bond conditions zones. The maximum measured steel strains in SCC beams in the lap splice zones, were higher than those for NVC specimens. The mean bond stress values, for SCC beams with 25–50% lap splice lengths, were higher than those of NVC beams, with the same lap splice lengths, by 16–13%, respectively. The results of the current study showed that the empirical equations from the literature overestimated the bond strength of the splice lap length for cantilever upper steel in SCC beams with long splices which agrees with the state of the art as these equations were developed originally for short anchorage lengths.
650		4	\|a Self-compacting concrete
650		4	\|a Bond strength
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650		4	\|a Lap length of steel bars in tension
650		4	\|a Empirical equations
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653		0	\|a Systems of building construction. Including fireproof construction, concrete construction
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700	0		\|a Shorouk Mohamed El Sadany \|e verfasserin \|4 aut
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spelling	10.1186/s40069-023-00581-9 doi (DE-627)DOAJ087762102 (DE-599)DOAJ93de871774184dc1acc5dd48ec252415 DE-627 ger DE-627 rakwb eng TH1000-1725 Wael Mohamed Montaser verfasserin aut Steel Reinforced Self-Compacting Concrete (SCC) Cantilever Beams: Bond Behaviour in Poor Condition Zones 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Previous investigations carried out on reinforced self-compacted concrete (SCC) beams have reported contradictory results on reinforcement bond behaviour occurring in the zones defined for good bond conditions according to Eurocode2. Cantilevered SCC beams’ critical upper tension reinforcement bond behaviour has previously had limited reporting. In this study, the bond behaviour in normally vibrated concrete (NVC) and self-compacted concrete (SCC) in poor conditions zones are compared and the differences are highlighted. The effect of four parameters, including (i) concrete type (SCC and NVC), (ii) characteristic strength of SCC, (iii) lap splice length, and (iv) depth of concrete cover for the reinforcement is investigated. It was found that for the studied beams, increasing splice length improved the energy absorption and changed the failure mode to a more ductile manner even at the poor bond conditions zones. The maximum measured steel strains in SCC beams in the lap splice zones, were higher than those for NVC specimens. The mean bond stress values, for SCC beams with 25–50% lap splice lengths, were higher than those of NVC beams, with the same lap splice lengths, by 16–13%, respectively. The results of the current study showed that the empirical equations from the literature overestimated the bond strength of the splice lap length for cantilever upper steel in SCC beams with long splices which agrees with the state of the art as these equations were developed originally for short anchorage lengths. Self-compacting concrete Bond strength Bond stress Lap length of steel bars in tension Empirical equations Concrete cover Systems of building construction. Including fireproof construction, concrete construction Ibrahim Galal Shaaban verfasserin aut Joseph P. Rizzuto verfasserin aut Amr Hussein Zaher verfasserin aut Ahmed Rashad verfasserin aut Shorouk Mohamed El Sadany verfasserin aut In International Journal of Concrete Structures and Materials SpringerOpen, 2013 17(2023), 1, Seite 21 (DE-627)752436694 (DE-600)2724363-1 22341315 nnns volume:17 year:2023 number:1 pages:21 https://doi.org/10.1186/s40069-023-00581-9 kostenfrei https://doaj.org/article/93de871774184dc1acc5dd48ec252415 kostenfrei https://doi.org/10.1186/s40069-023-00581-9 kostenfrei https://doaj.org/toc/2234-1315 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4392 GBV_ILN_4700 AR 17 2023 1 21
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callnumber-first	T - Technology
author	Wael Mohamed Montaser
spellingShingle	Wael Mohamed Montaser misc TH1000-1725 misc Self-compacting concrete misc Bond strength misc Bond stress misc Lap length of steel bars in tension misc Empirical equations misc Concrete cover misc Systems of building construction. Including fireproof construction, concrete construction Steel Reinforced Self-Compacting Concrete (SCC) Cantilever Beams: Bond Behaviour in Poor Condition Zones
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topic_title	TH1000-1725 Steel Reinforced Self-Compacting Concrete (SCC) Cantilever Beams: Bond Behaviour in Poor Condition Zones Self-compacting concrete Bond strength Bond stress Lap length of steel bars in tension Empirical equations Concrete cover
topic	misc TH1000-1725 misc Self-compacting concrete misc Bond strength misc Bond stress misc Lap length of steel bars in tension misc Empirical equations misc Concrete cover misc Systems of building construction. Including fireproof construction, concrete construction
topic_unstemmed	misc TH1000-1725 misc Self-compacting concrete misc Bond strength misc Bond stress misc Lap length of steel bars in tension misc Empirical equations misc Concrete cover misc Systems of building construction. Including fireproof construction, concrete construction
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title	Steel Reinforced Self-Compacting Concrete (SCC) Cantilever Beams: Bond Behaviour in Poor Condition Zones
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title_full	Steel Reinforced Self-Compacting Concrete (SCC) Cantilever Beams: Bond Behaviour in Poor Condition Zones
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author_browse	Wael Mohamed Montaser Ibrahim Galal Shaaban Joseph P. Rizzuto Amr Hussein Zaher Ahmed Rashad Shorouk Mohamed El Sadany
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title_sort	steel reinforced self-compacting concrete (scc) cantilever beams: bond behaviour in poor condition zones
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title_auth	Steel Reinforced Self-Compacting Concrete (SCC) Cantilever Beams: Bond Behaviour in Poor Condition Zones
abstract	Abstract Previous investigations carried out on reinforced self-compacted concrete (SCC) beams have reported contradictory results on reinforcement bond behaviour occurring in the zones defined for good bond conditions according to Eurocode2. Cantilevered SCC beams’ critical upper tension reinforcement bond behaviour has previously had limited reporting. In this study, the bond behaviour in normally vibrated concrete (NVC) and self-compacted concrete (SCC) in poor conditions zones are compared and the differences are highlighted. The effect of four parameters, including (i) concrete type (SCC and NVC), (ii) characteristic strength of SCC, (iii) lap splice length, and (iv) depth of concrete cover for the reinforcement is investigated. It was found that for the studied beams, increasing splice length improved the energy absorption and changed the failure mode to a more ductile manner even at the poor bond conditions zones. The maximum measured steel strains in SCC beams in the lap splice zones, were higher than those for NVC specimens. The mean bond stress values, for SCC beams with 25–50% lap splice lengths, were higher than those of NVC beams, with the same lap splice lengths, by 16–13%, respectively. The results of the current study showed that the empirical equations from the literature overestimated the bond strength of the splice lap length for cantilever upper steel in SCC beams with long splices which agrees with the state of the art as these equations were developed originally for short anchorage lengths.
abstractGer	Abstract Previous investigations carried out on reinforced self-compacted concrete (SCC) beams have reported contradictory results on reinforcement bond behaviour occurring in the zones defined for good bond conditions according to Eurocode2. Cantilevered SCC beams’ critical upper tension reinforcement bond behaviour has previously had limited reporting. In this study, the bond behaviour in normally vibrated concrete (NVC) and self-compacted concrete (SCC) in poor conditions zones are compared and the differences are highlighted. The effect of four parameters, including (i) concrete type (SCC and NVC), (ii) characteristic strength of SCC, (iii) lap splice length, and (iv) depth of concrete cover for the reinforcement is investigated. It was found that for the studied beams, increasing splice length improved the energy absorption and changed the failure mode to a more ductile manner even at the poor bond conditions zones. The maximum measured steel strains in SCC beams in the lap splice zones, were higher than those for NVC specimens. The mean bond stress values, for SCC beams with 25–50% lap splice lengths, were higher than those of NVC beams, with the same lap splice lengths, by 16–13%, respectively. The results of the current study showed that the empirical equations from the literature overestimated the bond strength of the splice lap length for cantilever upper steel in SCC beams with long splices which agrees with the state of the art as these equations were developed originally for short anchorage lengths.
abstract_unstemmed	Abstract Previous investigations carried out on reinforced self-compacted concrete (SCC) beams have reported contradictory results on reinforcement bond behaviour occurring in the zones defined for good bond conditions according to Eurocode2. Cantilevered SCC beams’ critical upper tension reinforcement bond behaviour has previously had limited reporting. In this study, the bond behaviour in normally vibrated concrete (NVC) and self-compacted concrete (SCC) in poor conditions zones are compared and the differences are highlighted. The effect of four parameters, including (i) concrete type (SCC and NVC), (ii) characteristic strength of SCC, (iii) lap splice length, and (iv) depth of concrete cover for the reinforcement is investigated. It was found that for the studied beams, increasing splice length improved the energy absorption and changed the failure mode to a more ductile manner even at the poor bond conditions zones. The maximum measured steel strains in SCC beams in the lap splice zones, were higher than those for NVC specimens. The mean bond stress values, for SCC beams with 25–50% lap splice lengths, were higher than those of NVC beams, with the same lap splice lengths, by 16–13%, respectively. The results of the current study showed that the empirical equations from the literature overestimated the bond strength of the splice lap length for cantilever upper steel in SCC beams with long splices which agrees with the state of the art as these equations were developed originally for short anchorage lengths.
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title_short	Steel Reinforced Self-Compacting Concrete (SCC) Cantilever Beams: Bond Behaviour in Poor Condition Zones
url	https://doi.org/10.1186/s40069-023-00581-9 https://doaj.org/article/93de871774184dc1acc5dd48ec252415 https://doaj.org/toc/2234-1315
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author2	Ibrahim Galal Shaaban Joseph P. Rizzuto Amr Hussein Zaher Ahmed Rashad Shorouk Mohamed El Sadany
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Rizzuto</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Amr Hussein Zaher</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Ahmed Rashad</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Shorouk Mohamed El Sadany</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">In</subfield><subfield code="t">International Journal of Concrete Structures and Materials</subfield><subfield code="d">SpringerOpen, 2013</subfield><subfield code="g">17(2023), 1, Seite 21</subfield><subfield code="w">(DE-627)752436694</subfield><subfield code="w">(DE-600)2724363-1</subfield><subfield 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Steel Reinforced Self-Compacting Concrete (SCC) Cantilever Beams: Bond Behaviour in Poor Condition Zones

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