Shear strengthening of slender reinforced concrete T-shaped beams using iron-based shape memory alloy strips

Recent research works have shown the feasibility of using iron-based shape memory alloys (Fe-SMAs) in structural rehabilitation projects, especially for flexural strengthening. As for the shear strengthening of reinforced concrete (RC) beams with SMAs, most previous works have used small-scale membe...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Cladera, Antoni [verfasserIn] Montoya-Coronado, Luis A. [verfasserIn] Ruiz-Pinilla, Joaquín G. [verfasserIn] Ribas, Carlos [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2020

Schlagwörter:	Iron-based shape memory alloy (Fe-SMA) Strengthening Strips Shear strength Reinforced concrete T-beams Experimental test

Übergeordnetes Werk:	Enthalten in: Engineering structures - Amsterdam [u.a.] : Elsevier Science, 1978, 221
Übergeordnetes Werk:	volume:221

DOI / URN:	10.1016/j.engstruct.2020.111018

Katalog-ID:	ELV004512839

Internformat


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245	1	0	\|a Shear strengthening of slender reinforced concrete T-shaped beams using iron-based shape memory alloy strips
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520			\|a Recent research works have shown the feasibility of using iron-based shape memory alloys (Fe-SMAs) in structural rehabilitation projects, especially for flexural strengthening. As for the shear strengthening of reinforced concrete (RC) beams with SMAs, most previous works have used small-scale members. This paper presents an experimental campaign involving eight tests run with real-scale RC beams. The total length of the beams was 5800 mm, and their T-shape cross-section was 550 mm deep. External strengthening was done using Fe-SMA strips with a U-configuration. Strips were characterized before being used for the strengthening application. The key results are herein presented. All the beams failed in shear. Tests showed an increase of around 30% in the shear strength of the retrofitted beams versus the reference beams, and flexural capacity was practically reached. For service loads, active strengthening was useful for delaying the appearance of cracks and reducing their widths. However, the U-configuration used for the strips implied having to anchor them to the web, which probably weakened the flange-web connection and impeded the correct transfer of the tensile stresses between the longitudinal tensile reinforcement and the compression flange, which resulted in less ductile behavior than expected.
650		4	\|a Iron-based shape memory alloy (Fe-SMA)
650		4	\|a Strengthening
650		4	\|a Strips
650		4	\|a Shear strength
650		4	\|a Reinforced concrete
650		4	\|a T-beams
650		4	\|a Experimental test
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700	1		\|a Ruiz-Pinilla, Joaquín G. \|e verfasserin \|4 aut
700	1		\|a Ribas, Carlos \|e verfasserin \|4 aut
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publishDate	2020
allfields	10.1016/j.engstruct.2020.111018 doi (DE-627)ELV004512839 (ELSEVIER)S0141-0296(20)30558-7 DE-627 ger DE-627 rda eng 690 DE-600 38.38 bkl 56.20 bkl 56.11 bkl Cladera, Antoni verfasserin aut Shear strengthening of slender reinforced concrete T-shaped beams using iron-based shape memory alloy strips 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Recent research works have shown the feasibility of using iron-based shape memory alloys (Fe-SMAs) in structural rehabilitation projects, especially for flexural strengthening. As for the shear strengthening of reinforced concrete (RC) beams with SMAs, most previous works have used small-scale members. This paper presents an experimental campaign involving eight tests run with real-scale RC beams. The total length of the beams was 5800 mm, and their T-shape cross-section was 550 mm deep. External strengthening was done using Fe-SMA strips with a U-configuration. Strips were characterized before being used for the strengthening application. The key results are herein presented. All the beams failed in shear. Tests showed an increase of around 30% in the shear strength of the retrofitted beams versus the reference beams, and flexural capacity was practically reached. For service loads, active strengthening was useful for delaying the appearance of cracks and reducing their widths. However, the U-configuration used for the strips implied having to anchor them to the web, which probably weakened the flange-web connection and impeded the correct transfer of the tensile stresses between the longitudinal tensile reinforcement and the compression flange, which resulted in less ductile behavior than expected. Iron-based shape memory alloy (Fe-SMA) Strengthening Strips Shear strength Reinforced concrete T-beams Experimental test Montoya-Coronado, Luis A. verfasserin aut Ruiz-Pinilla, Joaquín G. verfasserin aut Ribas, Carlos verfasserin aut Enthalten in Engineering structures Amsterdam [u.a.] : Elsevier Science, 1978 221 Online-Ressource (DE-627)320423344 (DE-600)2002833-7 (DE-576)259271195 0141-0296 nnns volume:221 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GEO 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 38.38 Seismologie 56.20 Ingenieurgeologie Bodenmechanik 56.11 Baukonstruktion AR 221
spelling	10.1016/j.engstruct.2020.111018 doi (DE-627)ELV004512839 (ELSEVIER)S0141-0296(20)30558-7 DE-627 ger DE-627 rda eng 690 DE-600 38.38 bkl 56.20 bkl 56.11 bkl Cladera, Antoni verfasserin aut Shear strengthening of slender reinforced concrete T-shaped beams using iron-based shape memory alloy strips 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Recent research works have shown the feasibility of using iron-based shape memory alloys (Fe-SMAs) in structural rehabilitation projects, especially for flexural strengthening. As for the shear strengthening of reinforced concrete (RC) beams with SMAs, most previous works have used small-scale members. This paper presents an experimental campaign involving eight tests run with real-scale RC beams. The total length of the beams was 5800 mm, and their T-shape cross-section was 550 mm deep. External strengthening was done using Fe-SMA strips with a U-configuration. Strips were characterized before being used for the strengthening application. The key results are herein presented. All the beams failed in shear. Tests showed an increase of around 30% in the shear strength of the retrofitted beams versus the reference beams, and flexural capacity was practically reached. For service loads, active strengthening was useful for delaying the appearance of cracks and reducing their widths. However, the U-configuration used for the strips implied having to anchor them to the web, which probably weakened the flange-web connection and impeded the correct transfer of the tensile stresses between the longitudinal tensile reinforcement and the compression flange, which resulted in less ductile behavior than expected. Iron-based shape memory alloy (Fe-SMA) Strengthening Strips Shear strength Reinforced concrete T-beams Experimental test Montoya-Coronado, Luis A. verfasserin aut Ruiz-Pinilla, Joaquín G. verfasserin aut Ribas, Carlos verfasserin aut Enthalten in Engineering structures Amsterdam [u.a.] : Elsevier Science, 1978 221 Online-Ressource (DE-627)320423344 (DE-600)2002833-7 (DE-576)259271195 0141-0296 nnns volume:221 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GEO 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 38.38 Seismologie 56.20 Ingenieurgeologie Bodenmechanik 56.11 Baukonstruktion AR 221
allfields_unstemmed	10.1016/j.engstruct.2020.111018 doi (DE-627)ELV004512839 (ELSEVIER)S0141-0296(20)30558-7 DE-627 ger DE-627 rda eng 690 DE-600 38.38 bkl 56.20 bkl 56.11 bkl Cladera, Antoni verfasserin aut Shear strengthening of slender reinforced concrete T-shaped beams using iron-based shape memory alloy strips 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Recent research works have shown the feasibility of using iron-based shape memory alloys (Fe-SMAs) in structural rehabilitation projects, especially for flexural strengthening. As for the shear strengthening of reinforced concrete (RC) beams with SMAs, most previous works have used small-scale members. This paper presents an experimental campaign involving eight tests run with real-scale RC beams. The total length of the beams was 5800 mm, and their T-shape cross-section was 550 mm deep. External strengthening was done using Fe-SMA strips with a U-configuration. Strips were characterized before being used for the strengthening application. The key results are herein presented. All the beams failed in shear. Tests showed an increase of around 30% in the shear strength of the retrofitted beams versus the reference beams, and flexural capacity was practically reached. For service loads, active strengthening was useful for delaying the appearance of cracks and reducing their widths. However, the U-configuration used for the strips implied having to anchor them to the web, which probably weakened the flange-web connection and impeded the correct transfer of the tensile stresses between the longitudinal tensile reinforcement and the compression flange, which resulted in less ductile behavior than expected. Iron-based shape memory alloy (Fe-SMA) Strengthening Strips Shear strength Reinforced concrete T-beams Experimental test Montoya-Coronado, Luis A. verfasserin aut Ruiz-Pinilla, Joaquín G. verfasserin aut Ribas, Carlos verfasserin aut Enthalten in Engineering structures Amsterdam [u.a.] : Elsevier Science, 1978 221 Online-Ressource (DE-627)320423344 (DE-600)2002833-7 (DE-576)259271195 0141-0296 nnns volume:221 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GEO 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 38.38 Seismologie 56.20 Ingenieurgeologie Bodenmechanik 56.11 Baukonstruktion AR 221
allfieldsGer	10.1016/j.engstruct.2020.111018 doi (DE-627)ELV004512839 (ELSEVIER)S0141-0296(20)30558-7 DE-627 ger DE-627 rda eng 690 DE-600 38.38 bkl 56.20 bkl 56.11 bkl Cladera, Antoni verfasserin aut Shear strengthening of slender reinforced concrete T-shaped beams using iron-based shape memory alloy strips 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Recent research works have shown the feasibility of using iron-based shape memory alloys (Fe-SMAs) in structural rehabilitation projects, especially for flexural strengthening. As for the shear strengthening of reinforced concrete (RC) beams with SMAs, most previous works have used small-scale members. This paper presents an experimental campaign involving eight tests run with real-scale RC beams. The total length of the beams was 5800 mm, and their T-shape cross-section was 550 mm deep. External strengthening was done using Fe-SMA strips with a U-configuration. Strips were characterized before being used for the strengthening application. The key results are herein presented. All the beams failed in shear. Tests showed an increase of around 30% in the shear strength of the retrofitted beams versus the reference beams, and flexural capacity was practically reached. For service loads, active strengthening was useful for delaying the appearance of cracks and reducing their widths. However, the U-configuration used for the strips implied having to anchor them to the web, which probably weakened the flange-web connection and impeded the correct transfer of the tensile stresses between the longitudinal tensile reinforcement and the compression flange, which resulted in less ductile behavior than expected. Iron-based shape memory alloy (Fe-SMA) Strengthening Strips Shear strength Reinforced concrete T-beams Experimental test Montoya-Coronado, Luis A. verfasserin aut Ruiz-Pinilla, Joaquín G. verfasserin aut Ribas, Carlos verfasserin aut Enthalten in Engineering structures Amsterdam [u.a.] : Elsevier Science, 1978 221 Online-Ressource (DE-627)320423344 (DE-600)2002833-7 (DE-576)259271195 0141-0296 nnns volume:221 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GEO 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 38.38 Seismologie 56.20 Ingenieurgeologie Bodenmechanik 56.11 Baukonstruktion AR 221
allfieldsSound	10.1016/j.engstruct.2020.111018 doi (DE-627)ELV004512839 (ELSEVIER)S0141-0296(20)30558-7 DE-627 ger DE-627 rda eng 690 DE-600 38.38 bkl 56.20 bkl 56.11 bkl Cladera, Antoni verfasserin aut Shear strengthening of slender reinforced concrete T-shaped beams using iron-based shape memory alloy strips 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Recent research works have shown the feasibility of using iron-based shape memory alloys (Fe-SMAs) in structural rehabilitation projects, especially for flexural strengthening. As for the shear strengthening of reinforced concrete (RC) beams with SMAs, most previous works have used small-scale members. This paper presents an experimental campaign involving eight tests run with real-scale RC beams. The total length of the beams was 5800 mm, and their T-shape cross-section was 550 mm deep. External strengthening was done using Fe-SMA strips with a U-configuration. Strips were characterized before being used for the strengthening application. The key results are herein presented. All the beams failed in shear. Tests showed an increase of around 30% in the shear strength of the retrofitted beams versus the reference beams, and flexural capacity was practically reached. For service loads, active strengthening was useful for delaying the appearance of cracks and reducing their widths. However, the U-configuration used for the strips implied having to anchor them to the web, which probably weakened the flange-web connection and impeded the correct transfer of the tensile stresses between the longitudinal tensile reinforcement and the compression flange, which resulted in less ductile behavior than expected. Iron-based shape memory alloy (Fe-SMA) Strengthening Strips Shear strength Reinforced concrete T-beams Experimental test Montoya-Coronado, Luis A. verfasserin aut Ruiz-Pinilla, Joaquín G. verfasserin aut Ribas, Carlos verfasserin aut Enthalten in Engineering structures Amsterdam [u.a.] : Elsevier Science, 1978 221 Online-Ressource (DE-627)320423344 (DE-600)2002833-7 (DE-576)259271195 0141-0296 nnns volume:221 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GEO 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 38.38 Seismologie 56.20 Ingenieurgeologie Bodenmechanik 56.11 Baukonstruktion AR 221
language	English
source	Enthalten in Engineering structures 221 volume:221
sourceStr	Enthalten in Engineering structures 221 volume:221
format_phy_str_mv	Article
bklname	Seismologie Ingenieurgeologie Bodenmechanik Baukonstruktion
institution	findex.gbv.de
topic_facet	Iron-based shape memory alloy (Fe-SMA) Strengthening Strips Shear strength Reinforced concrete T-beams Experimental test
dewey-raw	690
isfreeaccess_bool	false
container_title	Engineering structures
authorswithroles_txt_mv	Cladera, Antoni @@aut@@ Montoya-Coronado, Luis A. @@aut@@ Ruiz-Pinilla, Joaquín G. @@aut@@ Ribas, Carlos @@aut@@
publishDateDaySort_date	2020-01-01T00:00:00Z
hierarchy_top_id	320423344
dewey-sort	3690
id	ELV004512839
language_de	englisch
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author	Cladera, Antoni
spellingShingle	Cladera, Antoni ddc 690 bkl 38.38 bkl 56.20 bkl 56.11 misc Iron-based shape memory alloy (Fe-SMA) misc Strengthening misc Strips misc Shear strength misc Reinforced concrete misc T-beams misc Experimental test Shear strengthening of slender reinforced concrete T-shaped beams using iron-based shape memory alloy strips
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topic_title	690 DE-600 38.38 bkl 56.20 bkl 56.11 bkl Shear strengthening of slender reinforced concrete T-shaped beams using iron-based shape memory alloy strips Iron-based shape memory alloy (Fe-SMA) Strengthening Strips Shear strength Reinforced concrete T-beams Experimental test
topic	ddc 690 bkl 38.38 bkl 56.20 bkl 56.11 misc Iron-based shape memory alloy (Fe-SMA) misc Strengthening misc Strips misc Shear strength misc Reinforced concrete misc T-beams misc Experimental test
topic_unstemmed	ddc 690 bkl 38.38 bkl 56.20 bkl 56.11 misc Iron-based shape memory alloy (Fe-SMA) misc Strengthening misc Strips misc Shear strength misc Reinforced concrete misc T-beams misc Experimental test
topic_browse	ddc 690 bkl 38.38 bkl 56.20 bkl 56.11 misc Iron-based shape memory alloy (Fe-SMA) misc Strengthening misc Strips misc Shear strength misc Reinforced concrete misc T-beams misc Experimental test
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title	Shear strengthening of slender reinforced concrete T-shaped beams using iron-based shape memory alloy strips
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title_full	Shear strengthening of slender reinforced concrete T-shaped beams using iron-based shape memory alloy strips
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author_browse	Cladera, Antoni Montoya-Coronado, Luis A. Ruiz-Pinilla, Joaquín G. Ribas, Carlos
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title_sort	shear strengthening of slender reinforced concrete t-shaped beams using iron-based shape memory alloy strips
title_auth	Shear strengthening of slender reinforced concrete T-shaped beams using iron-based shape memory alloy strips
abstract	Recent research works have shown the feasibility of using iron-based shape memory alloys (Fe-SMAs) in structural rehabilitation projects, especially for flexural strengthening. As for the shear strengthening of reinforced concrete (RC) beams with SMAs, most previous works have used small-scale members. This paper presents an experimental campaign involving eight tests run with real-scale RC beams. The total length of the beams was 5800 mm, and their T-shape cross-section was 550 mm deep. External strengthening was done using Fe-SMA strips with a U-configuration. Strips were characterized before being used for the strengthening application. The key results are herein presented. All the beams failed in shear. Tests showed an increase of around 30% in the shear strength of the retrofitted beams versus the reference beams, and flexural capacity was practically reached. For service loads, active strengthening was useful for delaying the appearance of cracks and reducing their widths. However, the U-configuration used for the strips implied having to anchor them to the web, which probably weakened the flange-web connection and impeded the correct transfer of the tensile stresses between the longitudinal tensile reinforcement and the compression flange, which resulted in less ductile behavior than expected.
abstractGer	Recent research works have shown the feasibility of using iron-based shape memory alloys (Fe-SMAs) in structural rehabilitation projects, especially for flexural strengthening. As for the shear strengthening of reinforced concrete (RC) beams with SMAs, most previous works have used small-scale members. This paper presents an experimental campaign involving eight tests run with real-scale RC beams. The total length of the beams was 5800 mm, and their T-shape cross-section was 550 mm deep. External strengthening was done using Fe-SMA strips with a U-configuration. Strips were characterized before being used for the strengthening application. The key results are herein presented. All the beams failed in shear. Tests showed an increase of around 30% in the shear strength of the retrofitted beams versus the reference beams, and flexural capacity was practically reached. For service loads, active strengthening was useful for delaying the appearance of cracks and reducing their widths. However, the U-configuration used for the strips implied having to anchor them to the web, which probably weakened the flange-web connection and impeded the correct transfer of the tensile stresses between the longitudinal tensile reinforcement and the compression flange, which resulted in less ductile behavior than expected.
abstract_unstemmed	Recent research works have shown the feasibility of using iron-based shape memory alloys (Fe-SMAs) in structural rehabilitation projects, especially for flexural strengthening. As for the shear strengthening of reinforced concrete (RC) beams with SMAs, most previous works have used small-scale members. This paper presents an experimental campaign involving eight tests run with real-scale RC beams. The total length of the beams was 5800 mm, and their T-shape cross-section was 550 mm deep. External strengthening was done using Fe-SMA strips with a U-configuration. Strips were characterized before being used for the strengthening application. The key results are herein presented. All the beams failed in shear. Tests showed an increase of around 30% in the shear strength of the retrofitted beams versus the reference beams, and flexural capacity was practically reached. For service loads, active strengthening was useful for delaying the appearance of cracks and reducing their widths. However, the U-configuration used for the strips implied having to anchor them to the web, which probably weakened the flange-web connection and impeded the correct transfer of the tensile stresses between the longitudinal tensile reinforcement and the compression flange, which resulted in less ductile behavior than expected.
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title_short	Shear strengthening of slender reinforced concrete T-shaped beams using iron-based shape memory alloy strips
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author2	Montoya-Coronado, Luis A. Ruiz-Pinilla, Joaquín G. Ribas, Carlos
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up_date	2024-07-06T23:14:45.231Z
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Shear strengthening of slender reinforced concrete T-shaped beams using iron-based shape memory alloy strips

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