Influence of elevated temperatures on bond performance between BFRP bars and concrete

The elevated fire temperatures cause the deterioration of the mechanical properties of BFRP bars and concrete. A three-dimensional refined numerical model considering the surface characteristics of ribbed BFRP bars was established to study the effect of high temperature on interfacial bond performan...
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Autor*in:	Zhang, Renbo [verfasserIn] Wu, Jintao [verfasserIn] Jin, Liu [verfasserIn] Du, Xiuli [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	BFRP bars Bond-behavior Concrete Elevated temperatures Bond-slip model Refined numerical simulation

Übergeordnetes Werk:	Enthalten in: Engineering fracture mechanics - Kidlington : Elsevier Science, 1968, 287
Übergeordnetes Werk:	volume:287

DOI / URN:	10.1016/j.engfracmech.2023.109303

Katalog-ID:	ELV010049037

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245	1	0	\|a Influence of elevated temperatures on bond performance between BFRP bars and concrete
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520			\|a The elevated fire temperatures cause the deterioration of the mechanical properties of BFRP bars and concrete. A three-dimensional refined numerical model considering the surface characteristics of ribbed BFRP bars was established to study the effect of high temperature on interfacial bond performance. The “sequence coupling” method analyzes the bonding behavior of BFRP bars and concrete under high temperatures or after natural cooling. The validity of the refined model was verified by reproducing the available test results. Then, the bond behavior was compared and discussed. Based on the simulation results, a constitutive model for predicting the bond performance was developed by modifying the available model at room temperature. The results show that the numerical model can observe the bond failure mechanism between the BFRP-concrete interface. The specimens after natural cooling have better bond performance due to the restoration in material properties. The pull-out failure occurs easier at high temperatures, owing to the various change in the property of BFRP bars and the faster increase in BFRP strain. The influence of temperature rise on peak slip is more significant than that on bond strength. The bond strength and peak slip decrease linearly with the increase in temperature. Finally, the developed bond stress-slip constitutive model considering the effect of temperature, can reasonably predict the bond behavior between BFRP bars and concrete.
650		4	\|a BFRP bars
650		4	\|a Bond-behavior
650		4	\|a Concrete
650		4	\|a Elevated temperatures
650		4	\|a Bond-slip model
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allfields	10.1016/j.engfracmech.2023.109303 doi (DE-627)ELV010049037 (ELSEVIER)S0013-7944(23)00261-8 DE-627 ger DE-627 rda eng 530 VZ 51.32 bkl Zhang, Renbo verfasserin aut Influence of elevated temperatures on bond performance between BFRP bars and concrete 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The elevated fire temperatures cause the deterioration of the mechanical properties of BFRP bars and concrete. A three-dimensional refined numerical model considering the surface characteristics of ribbed BFRP bars was established to study the effect of high temperature on interfacial bond performance. The “sequence coupling” method analyzes the bonding behavior of BFRP bars and concrete under high temperatures or after natural cooling. The validity of the refined model was verified by reproducing the available test results. Then, the bond behavior was compared and discussed. Based on the simulation results, a constitutive model for predicting the bond performance was developed by modifying the available model at room temperature. The results show that the numerical model can observe the bond failure mechanism between the BFRP-concrete interface. The specimens after natural cooling have better bond performance due to the restoration in material properties. The pull-out failure occurs easier at high temperatures, owing to the various change in the property of BFRP bars and the faster increase in BFRP strain. The influence of temperature rise on peak slip is more significant than that on bond strength. The bond strength and peak slip decrease linearly with the increase in temperature. Finally, the developed bond stress-slip constitutive model considering the effect of temperature, can reasonably predict the bond behavior between BFRP bars and concrete. BFRP bars Bond-behavior Concrete Elevated temperatures Bond-slip model Refined numerical simulation Wu, Jintao verfasserin aut Jin, Liu verfasserin aut Du, Xiuli verfasserin aut Enthalten in Engineering fracture mechanics Kidlington : Elsevier Science, 1968 287 Online-Ressource (DE-627)320505006 (DE-600)2012718-2 (DE-576)094752575 nnns volume:287 GBV_USEFLAG_U SYSFLAG_U GBV_ELV 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_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.32 Werkstoffmechanik VZ AR 287
spelling	10.1016/j.engfracmech.2023.109303 doi (DE-627)ELV010049037 (ELSEVIER)S0013-7944(23)00261-8 DE-627 ger DE-627 rda eng 530 VZ 51.32 bkl Zhang, Renbo verfasserin aut Influence of elevated temperatures on bond performance between BFRP bars and concrete 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The elevated fire temperatures cause the deterioration of the mechanical properties of BFRP bars and concrete. A three-dimensional refined numerical model considering the surface characteristics of ribbed BFRP bars was established to study the effect of high temperature on interfacial bond performance. The “sequence coupling” method analyzes the bonding behavior of BFRP bars and concrete under high temperatures or after natural cooling. The validity of the refined model was verified by reproducing the available test results. Then, the bond behavior was compared and discussed. Based on the simulation results, a constitutive model for predicting the bond performance was developed by modifying the available model at room temperature. The results show that the numerical model can observe the bond failure mechanism between the BFRP-concrete interface. The specimens after natural cooling have better bond performance due to the restoration in material properties. The pull-out failure occurs easier at high temperatures, owing to the various change in the property of BFRP bars and the faster increase in BFRP strain. The influence of temperature rise on peak slip is more significant than that on bond strength. The bond strength and peak slip decrease linearly with the increase in temperature. Finally, the developed bond stress-slip constitutive model considering the effect of temperature, can reasonably predict the bond behavior between BFRP bars and concrete. BFRP bars Bond-behavior Concrete Elevated temperatures Bond-slip model Refined numerical simulation Wu, Jintao verfasserin aut Jin, Liu verfasserin aut Du, Xiuli verfasserin aut Enthalten in Engineering fracture mechanics Kidlington : Elsevier Science, 1968 287 Online-Ressource (DE-627)320505006 (DE-600)2012718-2 (DE-576)094752575 nnns volume:287 GBV_USEFLAG_U SYSFLAG_U GBV_ELV 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_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.32 Werkstoffmechanik VZ AR 287
allfields_unstemmed	10.1016/j.engfracmech.2023.109303 doi (DE-627)ELV010049037 (ELSEVIER)S0013-7944(23)00261-8 DE-627 ger DE-627 rda eng 530 VZ 51.32 bkl Zhang, Renbo verfasserin aut Influence of elevated temperatures on bond performance between BFRP bars and concrete 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The elevated fire temperatures cause the deterioration of the mechanical properties of BFRP bars and concrete. A three-dimensional refined numerical model considering the surface characteristics of ribbed BFRP bars was established to study the effect of high temperature on interfacial bond performance. The “sequence coupling” method analyzes the bonding behavior of BFRP bars and concrete under high temperatures or after natural cooling. The validity of the refined model was verified by reproducing the available test results. Then, the bond behavior was compared and discussed. Based on the simulation results, a constitutive model for predicting the bond performance was developed by modifying the available model at room temperature. The results show that the numerical model can observe the bond failure mechanism between the BFRP-concrete interface. The specimens after natural cooling have better bond performance due to the restoration in material properties. The pull-out failure occurs easier at high temperatures, owing to the various change in the property of BFRP bars and the faster increase in BFRP strain. The influence of temperature rise on peak slip is more significant than that on bond strength. The bond strength and peak slip decrease linearly with the increase in temperature. Finally, the developed bond stress-slip constitutive model considering the effect of temperature, can reasonably predict the bond behavior between BFRP bars and concrete. BFRP bars Bond-behavior Concrete Elevated temperatures Bond-slip model Refined numerical simulation Wu, Jintao verfasserin aut Jin, Liu verfasserin aut Du, Xiuli verfasserin aut Enthalten in Engineering fracture mechanics Kidlington : Elsevier Science, 1968 287 Online-Ressource (DE-627)320505006 (DE-600)2012718-2 (DE-576)094752575 nnns volume:287 GBV_USEFLAG_U SYSFLAG_U GBV_ELV 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_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.32 Werkstoffmechanik VZ AR 287
allfieldsGer	10.1016/j.engfracmech.2023.109303 doi (DE-627)ELV010049037 (ELSEVIER)S0013-7944(23)00261-8 DE-627 ger DE-627 rda eng 530 VZ 51.32 bkl Zhang, Renbo verfasserin aut Influence of elevated temperatures on bond performance between BFRP bars and concrete 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The elevated fire temperatures cause the deterioration of the mechanical properties of BFRP bars and concrete. A three-dimensional refined numerical model considering the surface characteristics of ribbed BFRP bars was established to study the effect of high temperature on interfacial bond performance. The “sequence coupling” method analyzes the bonding behavior of BFRP bars and concrete under high temperatures or after natural cooling. The validity of the refined model was verified by reproducing the available test results. Then, the bond behavior was compared and discussed. Based on the simulation results, a constitutive model for predicting the bond performance was developed by modifying the available model at room temperature. The results show that the numerical model can observe the bond failure mechanism between the BFRP-concrete interface. The specimens after natural cooling have better bond performance due to the restoration in material properties. The pull-out failure occurs easier at high temperatures, owing to the various change in the property of BFRP bars and the faster increase in BFRP strain. The influence of temperature rise on peak slip is more significant than that on bond strength. The bond strength and peak slip decrease linearly with the increase in temperature. Finally, the developed bond stress-slip constitutive model considering the effect of temperature, can reasonably predict the bond behavior between BFRP bars and concrete. BFRP bars Bond-behavior Concrete Elevated temperatures Bond-slip model Refined numerical simulation Wu, Jintao verfasserin aut Jin, Liu verfasserin aut Du, Xiuli verfasserin aut Enthalten in Engineering fracture mechanics Kidlington : Elsevier Science, 1968 287 Online-Ressource (DE-627)320505006 (DE-600)2012718-2 (DE-576)094752575 nnns volume:287 GBV_USEFLAG_U SYSFLAG_U GBV_ELV 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_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.32 Werkstoffmechanik VZ AR 287
allfieldsSound	10.1016/j.engfracmech.2023.109303 doi (DE-627)ELV010049037 (ELSEVIER)S0013-7944(23)00261-8 DE-627 ger DE-627 rda eng 530 VZ 51.32 bkl Zhang, Renbo verfasserin aut Influence of elevated temperatures on bond performance between BFRP bars and concrete 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The elevated fire temperatures cause the deterioration of the mechanical properties of BFRP bars and concrete. A three-dimensional refined numerical model considering the surface characteristics of ribbed BFRP bars was established to study the effect of high temperature on interfacial bond performance. The “sequence coupling” method analyzes the bonding behavior of BFRP bars and concrete under high temperatures or after natural cooling. The validity of the refined model was verified by reproducing the available test results. Then, the bond behavior was compared and discussed. Based on the simulation results, a constitutive model for predicting the bond performance was developed by modifying the available model at room temperature. The results show that the numerical model can observe the bond failure mechanism between the BFRP-concrete interface. The specimens after natural cooling have better bond performance due to the restoration in material properties. The pull-out failure occurs easier at high temperatures, owing to the various change in the property of BFRP bars and the faster increase in BFRP strain. The influence of temperature rise on peak slip is more significant than that on bond strength. The bond strength and peak slip decrease linearly with the increase in temperature. Finally, the developed bond stress-slip constitutive model considering the effect of temperature, can reasonably predict the bond behavior between BFRP bars and concrete. BFRP bars Bond-behavior Concrete Elevated temperatures Bond-slip model Refined numerical simulation Wu, Jintao verfasserin aut Jin, Liu verfasserin aut Du, Xiuli verfasserin aut Enthalten in Engineering fracture mechanics Kidlington : Elsevier Science, 1968 287 Online-Ressource (DE-627)320505006 (DE-600)2012718-2 (DE-576)094752575 nnns volume:287 GBV_USEFLAG_U SYSFLAG_U GBV_ELV 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_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.32 Werkstoffmechanik VZ AR 287
language	English
source	Enthalten in Engineering fracture mechanics 287 volume:287
sourceStr	Enthalten in Engineering fracture mechanics 287 volume:287
format_phy_str_mv	Article
bklname	Werkstoffmechanik
institution	findex.gbv.de
topic_facet	BFRP bars Bond-behavior Concrete Elevated temperatures Bond-slip model Refined numerical simulation
dewey-raw	530
isfreeaccess_bool	false
container_title	Engineering fracture mechanics
authorswithroles_txt_mv	Zhang, Renbo @@aut@@ Wu, Jintao @@aut@@ Jin, Liu @@aut@@ Du, Xiuli @@aut@@
publishDateDaySort_date	2023-01-01T00:00:00Z
hierarchy_top_id	320505006
dewey-sort	3530
id	ELV010049037
language_de	englisch
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A three-dimensional refined numerical model considering the surface characteristics of ribbed BFRP bars was established to study the effect of high temperature on interfacial bond performance. The “sequence coupling” method analyzes the bonding behavior of BFRP bars and concrete under high temperatures or after natural cooling. The validity of the refined model was verified by reproducing the available test results. Then, the bond behavior was compared and discussed. Based on the simulation results, a constitutive model for predicting the bond performance was developed by modifying the available model at room temperature. The results show that the numerical model can observe the bond failure mechanism between the BFRP-concrete interface. The specimens after natural cooling have better bond performance due to the restoration in material properties. The pull-out failure occurs easier at high temperatures, owing to the various change in the property of BFRP bars and the faster increase in BFRP strain. The influence of temperature rise on peak slip is more significant than that on bond strength. The bond strength and peak slip decrease linearly with the increase in temperature. 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author	Zhang, Renbo
spellingShingle	Zhang, Renbo ddc 530 bkl 51.32 misc BFRP bars misc Bond-behavior misc Concrete misc Elevated temperatures misc Bond-slip model misc Refined numerical simulation Influence of elevated temperatures on bond performance between BFRP bars and concrete
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topic_title	530 VZ 51.32 bkl Influence of elevated temperatures on bond performance between BFRP bars and concrete BFRP bars Bond-behavior Concrete Elevated temperatures Bond-slip model Refined numerical simulation
topic	ddc 530 bkl 51.32 misc BFRP bars misc Bond-behavior misc Concrete misc Elevated temperatures misc Bond-slip model misc Refined numerical simulation
topic_unstemmed	ddc 530 bkl 51.32 misc BFRP bars misc Bond-behavior misc Concrete misc Elevated temperatures misc Bond-slip model misc Refined numerical simulation
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title	Influence of elevated temperatures on bond performance between BFRP bars and concrete
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title_full	Influence of elevated temperatures on bond performance between BFRP bars and concrete
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author_browse	Zhang, Renbo Wu, Jintao Jin, Liu Du, Xiuli
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title_sort	influence of elevated temperatures on bond performance between bfrp bars and concrete
title_auth	Influence of elevated temperatures on bond performance between BFRP bars and concrete
abstract	The elevated fire temperatures cause the deterioration of the mechanical properties of BFRP bars and concrete. A three-dimensional refined numerical model considering the surface characteristics of ribbed BFRP bars was established to study the effect of high temperature on interfacial bond performance. The “sequence coupling” method analyzes the bonding behavior of BFRP bars and concrete under high temperatures or after natural cooling. The validity of the refined model was verified by reproducing the available test results. Then, the bond behavior was compared and discussed. Based on the simulation results, a constitutive model for predicting the bond performance was developed by modifying the available model at room temperature. The results show that the numerical model can observe the bond failure mechanism between the BFRP-concrete interface. The specimens after natural cooling have better bond performance due to the restoration in material properties. The pull-out failure occurs easier at high temperatures, owing to the various change in the property of BFRP bars and the faster increase in BFRP strain. The influence of temperature rise on peak slip is more significant than that on bond strength. The bond strength and peak slip decrease linearly with the increase in temperature. Finally, the developed bond stress-slip constitutive model considering the effect of temperature, can reasonably predict the bond behavior between BFRP bars and concrete.
abstractGer	The elevated fire temperatures cause the deterioration of the mechanical properties of BFRP bars and concrete. A three-dimensional refined numerical model considering the surface characteristics of ribbed BFRP bars was established to study the effect of high temperature on interfacial bond performance. The “sequence coupling” method analyzes the bonding behavior of BFRP bars and concrete under high temperatures or after natural cooling. The validity of the refined model was verified by reproducing the available test results. Then, the bond behavior was compared and discussed. Based on the simulation results, a constitutive model for predicting the bond performance was developed by modifying the available model at room temperature. The results show that the numerical model can observe the bond failure mechanism between the BFRP-concrete interface. The specimens after natural cooling have better bond performance due to the restoration in material properties. The pull-out failure occurs easier at high temperatures, owing to the various change in the property of BFRP bars and the faster increase in BFRP strain. The influence of temperature rise on peak slip is more significant than that on bond strength. The bond strength and peak slip decrease linearly with the increase in temperature. Finally, the developed bond stress-slip constitutive model considering the effect of temperature, can reasonably predict the bond behavior between BFRP bars and concrete.
abstract_unstemmed	The elevated fire temperatures cause the deterioration of the mechanical properties of BFRP bars and concrete. A three-dimensional refined numerical model considering the surface characteristics of ribbed BFRP bars was established to study the effect of high temperature on interfacial bond performance. The “sequence coupling” method analyzes the bonding behavior of BFRP bars and concrete under high temperatures or after natural cooling. The validity of the refined model was verified by reproducing the available test results. Then, the bond behavior was compared and discussed. Based on the simulation results, a constitutive model for predicting the bond performance was developed by modifying the available model at room temperature. The results show that the numerical model can observe the bond failure mechanism between the BFRP-concrete interface. The specimens after natural cooling have better bond performance due to the restoration in material properties. The pull-out failure occurs easier at high temperatures, owing to the various change in the property of BFRP bars and the faster increase in BFRP strain. The influence of temperature rise on peak slip is more significant than that on bond strength. The bond strength and peak slip decrease linearly with the increase in temperature. Finally, the developed bond stress-slip constitutive model considering the effect of temperature, can reasonably predict the bond behavior between BFRP bars and concrete.
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title_short	Influence of elevated temperatures on bond performance between BFRP bars and concrete
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doi_str	10.1016/j.engfracmech.2023.109303
up_date	2024-07-06T16:38:49.152Z
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Influence of elevated temperatures on bond performance between BFRP bars and concrete

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