Bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete

This paper deals with the bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete (HFRC) matrix. The benefits of hybrid fibers were evaluated through a series of monotonic/cyclic pull-out testing on 72 specimens. The influences of fiber characteristics, i.e. th...
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Gespeichert in:

Autor*in:	Huang, Le [verfasserIn] Xu, Lihua [verfasserIn] Chi, Yin [verfasserIn] Deng, Fangqian [verfasserIn] Zhang, Aoli [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2019

Schlagwörter:	Steel-polypropylene hybrid fiber Fiber reinforcement Bond strength Analytical model

Übergeordnetes Werk:	Enthalten in: Construction and building materials - Amsterdam [u.a.] : Elsevier Science, 1987, 218, Seite 176-192
Übergeordnetes Werk:	volume:218 ; pages:176-192

DOI / URN:	10.1016/j.conbuildmat.2019.05.096

Katalog-ID:	ELV002411369

Internformat


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520			\|a This paper deals with the bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete (HFRC) matrix. The benefits of hybrid fibers were evaluated through a series of monotonic/cyclic pull-out testing on 72 specimens. The influences of fiber characteristics, i.e. the volume fraction and aspect ratio, on the failure mode and the complete bond-slip responses were analyzed. Upon a simplified spring model, the effects of fiber reinforcement at different loading stages were further discussed. The results showed that for a well-confined HFRC specimen, the cyclic bond response at the pre-peak stage almost approached its monotonic response with slight reduction in the ultimate bond strength. Compared to the specimen made with plain concrete, the introduction of hybrid fibers could exert obvious positive influences on the bond strength, due to the synergetic effects in inhibiting the propagation of cracks at multi-scale and multi-stages. Finally, an analytical model was proposed to estimate the ultimate bond strength, in which the effects of fiber reinforcement, stirrup confinement and geometrical shape of deformed bar were taken into consideration. The model was subsequently well validated by various independent experimental results.
650		4	\|a Steel-polypropylene hybrid fiber
650		4	\|a Fiber reinforcement
650		4	\|a Bond strength
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700	1		\|a Chi, Yin \|e verfasserin \|4 aut
700	1		\|a Deng, Fangqian \|e verfasserin \|4 aut
700	1		\|a Zhang, Aoli \|e verfasserin \|4 aut
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publishDate	2019
allfields	10.1016/j.conbuildmat.2019.05.096 doi (DE-627)ELV002411369 (ELSEVIER)S0950-0618(19)31265-6 DE-627 ger DE-627 rda eng 690 DE-600 56.45 bkl Huang, Le verfasserin aut Bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This paper deals with the bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete (HFRC) matrix. The benefits of hybrid fibers were evaluated through a series of monotonic/cyclic pull-out testing on 72 specimens. The influences of fiber characteristics, i.e. the volume fraction and aspect ratio, on the failure mode and the complete bond-slip responses were analyzed. Upon a simplified spring model, the effects of fiber reinforcement at different loading stages were further discussed. The results showed that for a well-confined HFRC specimen, the cyclic bond response at the pre-peak stage almost approached its monotonic response with slight reduction in the ultimate bond strength. Compared to the specimen made with plain concrete, the introduction of hybrid fibers could exert obvious positive influences on the bond strength, due to the synergetic effects in inhibiting the propagation of cracks at multi-scale and multi-stages. Finally, an analytical model was proposed to estimate the ultimate bond strength, in which the effects of fiber reinforcement, stirrup confinement and geometrical shape of deformed bar were taken into consideration. The model was subsequently well validated by various independent experimental results. Steel-polypropylene hybrid fiber Fiber reinforcement Bond strength Analytical model Xu, Lihua verfasserin aut Chi, Yin verfasserin aut Deng, Fangqian verfasserin aut Zhang, Aoli verfasserin aut Enthalten in Construction and building materials Amsterdam [u.a.] : Elsevier Science, 1987 218, Seite 176-192 Online-Ressource (DE-627)320423115 (DE-600)2002804-0 (DE-576)259271187 nnns volume:218 pages:176-192 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 56.45 Baustoffkunde AR 218 176-192
spelling	10.1016/j.conbuildmat.2019.05.096 doi (DE-627)ELV002411369 (ELSEVIER)S0950-0618(19)31265-6 DE-627 ger DE-627 rda eng 690 DE-600 56.45 bkl Huang, Le verfasserin aut Bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This paper deals with the bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete (HFRC) matrix. The benefits of hybrid fibers were evaluated through a series of monotonic/cyclic pull-out testing on 72 specimens. The influences of fiber characteristics, i.e. the volume fraction and aspect ratio, on the failure mode and the complete bond-slip responses were analyzed. Upon a simplified spring model, the effects of fiber reinforcement at different loading stages were further discussed. The results showed that for a well-confined HFRC specimen, the cyclic bond response at the pre-peak stage almost approached its monotonic response with slight reduction in the ultimate bond strength. Compared to the specimen made with plain concrete, the introduction of hybrid fibers could exert obvious positive influences on the bond strength, due to the synergetic effects in inhibiting the propagation of cracks at multi-scale and multi-stages. Finally, an analytical model was proposed to estimate the ultimate bond strength, in which the effects of fiber reinforcement, stirrup confinement and geometrical shape of deformed bar were taken into consideration. The model was subsequently well validated by various independent experimental results. Steel-polypropylene hybrid fiber Fiber reinforcement Bond strength Analytical model Xu, Lihua verfasserin aut Chi, Yin verfasserin aut Deng, Fangqian verfasserin aut Zhang, Aoli verfasserin aut Enthalten in Construction and building materials Amsterdam [u.a.] : Elsevier Science, 1987 218, Seite 176-192 Online-Ressource (DE-627)320423115 (DE-600)2002804-0 (DE-576)259271187 nnns volume:218 pages:176-192 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 56.45 Baustoffkunde AR 218 176-192
allfields_unstemmed	10.1016/j.conbuildmat.2019.05.096 doi (DE-627)ELV002411369 (ELSEVIER)S0950-0618(19)31265-6 DE-627 ger DE-627 rda eng 690 DE-600 56.45 bkl Huang, Le verfasserin aut Bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This paper deals with the bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete (HFRC) matrix. The benefits of hybrid fibers were evaluated through a series of monotonic/cyclic pull-out testing on 72 specimens. The influences of fiber characteristics, i.e. the volume fraction and aspect ratio, on the failure mode and the complete bond-slip responses were analyzed. Upon a simplified spring model, the effects of fiber reinforcement at different loading stages were further discussed. The results showed that for a well-confined HFRC specimen, the cyclic bond response at the pre-peak stage almost approached its monotonic response with slight reduction in the ultimate bond strength. Compared to the specimen made with plain concrete, the introduction of hybrid fibers could exert obvious positive influences on the bond strength, due to the synergetic effects in inhibiting the propagation of cracks at multi-scale and multi-stages. Finally, an analytical model was proposed to estimate the ultimate bond strength, in which the effects of fiber reinforcement, stirrup confinement and geometrical shape of deformed bar were taken into consideration. The model was subsequently well validated by various independent experimental results. Steel-polypropylene hybrid fiber Fiber reinforcement Bond strength Analytical model Xu, Lihua verfasserin aut Chi, Yin verfasserin aut Deng, Fangqian verfasserin aut Zhang, Aoli verfasserin aut Enthalten in Construction and building materials Amsterdam [u.a.] : Elsevier Science, 1987 218, Seite 176-192 Online-Ressource (DE-627)320423115 (DE-600)2002804-0 (DE-576)259271187 nnns volume:218 pages:176-192 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 56.45 Baustoffkunde AR 218 176-192
allfieldsGer	10.1016/j.conbuildmat.2019.05.096 doi (DE-627)ELV002411369 (ELSEVIER)S0950-0618(19)31265-6 DE-627 ger DE-627 rda eng 690 DE-600 56.45 bkl Huang, Le verfasserin aut Bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This paper deals with the bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete (HFRC) matrix. The benefits of hybrid fibers were evaluated through a series of monotonic/cyclic pull-out testing on 72 specimens. The influences of fiber characteristics, i.e. the volume fraction and aspect ratio, on the failure mode and the complete bond-slip responses were analyzed. Upon a simplified spring model, the effects of fiber reinforcement at different loading stages were further discussed. The results showed that for a well-confined HFRC specimen, the cyclic bond response at the pre-peak stage almost approached its monotonic response with slight reduction in the ultimate bond strength. Compared to the specimen made with plain concrete, the introduction of hybrid fibers could exert obvious positive influences on the bond strength, due to the synergetic effects in inhibiting the propagation of cracks at multi-scale and multi-stages. Finally, an analytical model was proposed to estimate the ultimate bond strength, in which the effects of fiber reinforcement, stirrup confinement and geometrical shape of deformed bar were taken into consideration. The model was subsequently well validated by various independent experimental results. Steel-polypropylene hybrid fiber Fiber reinforcement Bond strength Analytical model Xu, Lihua verfasserin aut Chi, Yin verfasserin aut Deng, Fangqian verfasserin aut Zhang, Aoli verfasserin aut Enthalten in Construction and building materials Amsterdam [u.a.] : Elsevier Science, 1987 218, Seite 176-192 Online-Ressource (DE-627)320423115 (DE-600)2002804-0 (DE-576)259271187 nnns volume:218 pages:176-192 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 56.45 Baustoffkunde AR 218 176-192
allfieldsSound	10.1016/j.conbuildmat.2019.05.096 doi (DE-627)ELV002411369 (ELSEVIER)S0950-0618(19)31265-6 DE-627 ger DE-627 rda eng 690 DE-600 56.45 bkl Huang, Le verfasserin aut Bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This paper deals with the bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete (HFRC) matrix. The benefits of hybrid fibers were evaluated through a series of monotonic/cyclic pull-out testing on 72 specimens. The influences of fiber characteristics, i.e. the volume fraction and aspect ratio, on the failure mode and the complete bond-slip responses were analyzed. Upon a simplified spring model, the effects of fiber reinforcement at different loading stages were further discussed. The results showed that for a well-confined HFRC specimen, the cyclic bond response at the pre-peak stage almost approached its monotonic response with slight reduction in the ultimate bond strength. Compared to the specimen made with plain concrete, the introduction of hybrid fibers could exert obvious positive influences on the bond strength, due to the synergetic effects in inhibiting the propagation of cracks at multi-scale and multi-stages. Finally, an analytical model was proposed to estimate the ultimate bond strength, in which the effects of fiber reinforcement, stirrup confinement and geometrical shape of deformed bar were taken into consideration. The model was subsequently well validated by various independent experimental results. Steel-polypropylene hybrid fiber Fiber reinforcement Bond strength Analytical model Xu, Lihua verfasserin aut Chi, Yin verfasserin aut Deng, Fangqian verfasserin aut Zhang, Aoli verfasserin aut Enthalten in Construction and building materials Amsterdam [u.a.] : Elsevier Science, 1987 218, Seite 176-192 Online-Ressource (DE-627)320423115 (DE-600)2002804-0 (DE-576)259271187 nnns volume:218 pages:176-192 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 56.45 Baustoffkunde AR 218 176-192
language	English
source	Enthalten in Construction and building materials 218, Seite 176-192 volume:218 pages:176-192
sourceStr	Enthalten in Construction and building materials 218, Seite 176-192 volume:218 pages:176-192
format_phy_str_mv	Article
bklname	Baustoffkunde
institution	findex.gbv.de
topic_facet	Steel-polypropylene hybrid fiber Fiber reinforcement Bond strength Analytical model
dewey-raw	690
isfreeaccess_bool	false
container_title	Construction and building materials
authorswithroles_txt_mv	Huang, Le @@aut@@ Xu, Lihua @@aut@@ Chi, Yin @@aut@@ Deng, Fangqian @@aut@@ Zhang, Aoli @@aut@@
publishDateDaySort_date	2019-01-01T00:00:00Z
hierarchy_top_id	320423115
dewey-sort	3690
id	ELV002411369
language_de	englisch
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The benefits of hybrid fibers were evaluated through a series of monotonic/cyclic pull-out testing on 72 specimens. The influences of fiber characteristics, i.e. the volume fraction and aspect ratio, on the failure mode and the complete bond-slip responses were analyzed. Upon a simplified spring model, the effects of fiber reinforcement at different loading stages were further discussed. The results showed that for a well-confined HFRC specimen, the cyclic bond response at the pre-peak stage almost approached its monotonic response with slight reduction in the ultimate bond strength. Compared to the specimen made with plain concrete, the introduction of hybrid fibers could exert obvious positive influences on the bond strength, due to the synergetic effects in inhibiting the propagation of cracks at multi-scale and multi-stages. 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author	Huang, Le
spellingShingle	Huang, Le ddc 690 bkl 56.45 misc Steel-polypropylene hybrid fiber misc Fiber reinforcement misc Bond strength misc Analytical model Bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete
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topic_title	690 DE-600 56.45 bkl Bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete Steel-polypropylene hybrid fiber Fiber reinforcement Bond strength Analytical model
topic	ddc 690 bkl 56.45 misc Steel-polypropylene hybrid fiber misc Fiber reinforcement misc Bond strength misc Analytical model
topic_unstemmed	ddc 690 bkl 56.45 misc Steel-polypropylene hybrid fiber misc Fiber reinforcement misc Bond strength misc Analytical model
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title	Bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete
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title_full	Bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete
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title_sort	bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete
title_auth	Bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete
abstract	This paper deals with the bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete (HFRC) matrix. The benefits of hybrid fibers were evaluated through a series of monotonic/cyclic pull-out testing on 72 specimens. The influences of fiber characteristics, i.e. the volume fraction and aspect ratio, on the failure mode and the complete bond-slip responses were analyzed. Upon a simplified spring model, the effects of fiber reinforcement at different loading stages were further discussed. The results showed that for a well-confined HFRC specimen, the cyclic bond response at the pre-peak stage almost approached its monotonic response with slight reduction in the ultimate bond strength. Compared to the specimen made with plain concrete, the introduction of hybrid fibers could exert obvious positive influences on the bond strength, due to the synergetic effects in inhibiting the propagation of cracks at multi-scale and multi-stages. Finally, an analytical model was proposed to estimate the ultimate bond strength, in which the effects of fiber reinforcement, stirrup confinement and geometrical shape of deformed bar were taken into consideration. The model was subsequently well validated by various independent experimental results.
abstractGer	This paper deals with the bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete (HFRC) matrix. The benefits of hybrid fibers were evaluated through a series of monotonic/cyclic pull-out testing on 72 specimens. The influences of fiber characteristics, i.e. the volume fraction and aspect ratio, on the failure mode and the complete bond-slip responses were analyzed. Upon a simplified spring model, the effects of fiber reinforcement at different loading stages were further discussed. The results showed that for a well-confined HFRC specimen, the cyclic bond response at the pre-peak stage almost approached its monotonic response with slight reduction in the ultimate bond strength. Compared to the specimen made with plain concrete, the introduction of hybrid fibers could exert obvious positive influences on the bond strength, due to the synergetic effects in inhibiting the propagation of cracks at multi-scale and multi-stages. Finally, an analytical model was proposed to estimate the ultimate bond strength, in which the effects of fiber reinforcement, stirrup confinement and geometrical shape of deformed bar were taken into consideration. The model was subsequently well validated by various independent experimental results.
abstract_unstemmed	This paper deals with the bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete (HFRC) matrix. The benefits of hybrid fibers were evaluated through a series of monotonic/cyclic pull-out testing on 72 specimens. The influences of fiber characteristics, i.e. the volume fraction and aspect ratio, on the failure mode and the complete bond-slip responses were analyzed. Upon a simplified spring model, the effects of fiber reinforcement at different loading stages were further discussed. The results showed that for a well-confined HFRC specimen, the cyclic bond response at the pre-peak stage almost approached its monotonic response with slight reduction in the ultimate bond strength. Compared to the specimen made with plain concrete, the introduction of hybrid fibers could exert obvious positive influences on the bond strength, due to the synergetic effects in inhibiting the propagation of cracks at multi-scale and multi-stages. Finally, an analytical model was proposed to estimate the ultimate bond strength, in which the effects of fiber reinforcement, stirrup confinement and geometrical shape of deformed bar were taken into consideration. The model was subsequently well validated by various independent experimental results.
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title_short	Bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete
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author2	Xu, Lihua Chi, Yin Deng, Fangqian Zhang, Aoli
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doi_str	10.1016/j.conbuildmat.2019.05.096
up_date	2024-07-07T00:38:19.963Z
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Bond strength of deformed bar embedded in steel-polypropylene hybrid fiber reinforced concrete

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