Experimental and modelling of the flexural performance degradation of corroded RC beams under fatigue load
•Fatigue loading tests on corroded RC beams are performed.•Load-deflection, fatigue crack of concrete, and failure modes are discussed.•A developed flexural stiffness deterioration model under fatigue is proposed.•Theoretical predictions agree well with the experimental observations. Corrosion of re...
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| Veröffentlicht in: | Construction & building materials 2018-12, Vol.191, p.994-1003 |
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| creator | Ma, Yafei Wang, Guodong Su, Xiaochao Wang, Lei Zhang, Jianren |
| description | •Fatigue loading tests on corroded RC beams are performed.•Load-deflection, fatigue crack of concrete, and failure modes are discussed.•A developed flexural stiffness deterioration model under fatigue is proposed.•Theoretical predictions agree well with the experimental observations.
Corrosion of reinforcing bars accelerates the fatigue damage accumulation and significantly reduces the fatigue life of aging reinforced concrete (RC) bridges. This paper experimentally investigates the effects of corrosion on the fatigue behavior of reinforced concrete beams. An accelerated corrosion test is conducted in the laboratory conditions to obtain various corroded beam specimens. The initial crack width and the crack distribution are discussed. Based on the fatigue loading test, the load-deflection, fatigue crack propagation of concrete, fatigue life and the failure modes of RC beams after different fatigue cycles are investigated. Following that, a developed flexural stiffness calculation model for the corroded beams after fatigue is proposed. This model includes the effects of fatigue, corrosion-induced cracking and fatigue modulus degradation of concrete and other influential factors. The proposed method is validated with the experimental observations from various corroded RC beams of the current paper and available in open literature. |
| doi_str_mv | 10.1016/j.conbuildmat.2018.10.031 |
| format | Article |
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Corrosion of reinforcing bars accelerates the fatigue damage accumulation and significantly reduces the fatigue life of aging reinforced concrete (RC) bridges. This paper experimentally investigates the effects of corrosion on the fatigue behavior of reinforced concrete beams. An accelerated corrosion test is conducted in the laboratory conditions to obtain various corroded beam specimens. The initial crack width and the crack distribution are discussed. Based on the fatigue loading test, the load-deflection, fatigue crack propagation of concrete, fatigue life and the failure modes of RC beams after different fatigue cycles are investigated. Following that, a developed flexural stiffness calculation model for the corroded beams after fatigue is proposed. This model includes the effects of fatigue, corrosion-induced cracking and fatigue modulus degradation of concrete and other influential factors. The proposed method is validated with the experimental observations from various corroded RC beams of the current paper and available in open literature.</description><identifier>ISSN: 0950-0618</identifier><identifier>EISSN: 1879-0526</identifier><identifier>DOI: 10.1016/j.conbuildmat.2018.10.031</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Bridge engineering ; Bridges (Structures) ; Corrosion ; Fatigue ; Fatigue (Materials) ; Mechanical properties ; Properties ; Reinforced concrete ; Steel corrosion ; Stiffness</subject><ispartof>Construction & building materials, 2018-12, Vol.191, p.994-1003</ispartof><rights>2018</rights><rights>COPYRIGHT 2018 Reed Business Information, Inc. (US)</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c463t-22cc40ad4cb8def5ab8deadeee321f135d7855ebc19484b66e733b5a8b4ea7803</citedby><cites>FETCH-LOGICAL-c463t-22cc40ad4cb8def5ab8deadeee321f135d7855ebc19484b66e733b5a8b4ea7803</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.conbuildmat.2018.10.031$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids></links><search><creatorcontrib>Ma, Yafei</creatorcontrib><creatorcontrib>Wang, Guodong</creatorcontrib><creatorcontrib>Su, Xiaochao</creatorcontrib><creatorcontrib>Wang, Lei</creatorcontrib><creatorcontrib>Zhang, Jianren</creatorcontrib><title>Experimental and modelling of the flexural performance degradation of corroded RC beams under fatigue load</title><title>Construction & building materials</title><description>•Fatigue loading tests on corroded RC beams are performed.•Load-deflection, fatigue crack of concrete, and failure modes are discussed.•A developed flexural stiffness deterioration model under fatigue is proposed.•Theoretical predictions agree well with the experimental observations.
Corrosion of reinforcing bars accelerates the fatigue damage accumulation and significantly reduces the fatigue life of aging reinforced concrete (RC) bridges. This paper experimentally investigates the effects of corrosion on the fatigue behavior of reinforced concrete beams. An accelerated corrosion test is conducted in the laboratory conditions to obtain various corroded beam specimens. The initial crack width and the crack distribution are discussed. Based on the fatigue loading test, the load-deflection, fatigue crack propagation of concrete, fatigue life and the failure modes of RC beams after different fatigue cycles are investigated. Following that, a developed flexural stiffness calculation model for the corroded beams after fatigue is proposed. This model includes the effects of fatigue, corrosion-induced cracking and fatigue modulus degradation of concrete and other influential factors. The proposed method is validated with the experimental observations from various corroded RC beams of the current paper and available in open literature.</description><subject>Bridge engineering</subject><subject>Bridges (Structures)</subject><subject>Corrosion</subject><subject>Fatigue</subject><subject>Fatigue (Materials)</subject><subject>Mechanical properties</subject><subject>Properties</subject><subject>Reinforced concrete</subject><subject>Steel corrosion</subject><subject>Stiffness</subject><issn>0950-0618</issn><issn>1879-0526</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>N95</sourceid><recordid>eNqNkU1r3DAQhkVpINsk_0Gl19qVbEsrH8OSfkAgENqzGEsjR4stBcku6b-vzPaQwB6KQAMzzzsgPYR85KzmjMsvx9rEMKx-sjMsdcO4Kv2atfwd2XG17ysmGvme7FgvWMUkV5fkQ85HxphsZLMjx7uXZ0x-xrDARCFYOkeL0-TDSKOjyxNSN-HLmsq0gC6mGYJBanFMYGHxMWyciSmVnKWPBzogzJmuwWKirhDjinSKYK_JhYMp482_ekV-fb37efhe3T98-3G4va9MJ9ulahpjOga2M4Oy6ARsBSwitg13vBV2r4TAwfC-U90gJe7bdhCghg5hr1h7RT6d9o4wofbBxSWBmX02-lbIvlVcCVWo6gw1YsDy1BjQ-dJ-w9dn-HIszt6cDXx-FRjW7APmcmU_Pi15hDXnt3h_wk2KOSd0-rlogfRHc6Y31fqoX6nWm-ptVFSX7OGUxfKtvz0mnY3Hosn6hGbRNvr_2PIX9Xe5Xg</recordid><startdate>20181210</startdate><enddate>20181210</enddate><creator>Ma, Yafei</creator><creator>Wang, Guodong</creator><creator>Su, Xiaochao</creator><creator>Wang, Lei</creator><creator>Zhang, Jianren</creator><general>Elsevier Ltd</general><general>Reed Business Information, Inc. (US)</general><scope>AAYXX</scope><scope>CITATION</scope><scope>N95</scope><scope>XI7</scope></search><sort><creationdate>20181210</creationdate><title>Experimental and modelling of the flexural performance degradation of corroded RC beams under fatigue load</title><author>Ma, Yafei ; Wang, Guodong ; Su, Xiaochao ; Wang, Lei ; Zhang, Jianren</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c463t-22cc40ad4cb8def5ab8deadeee321f135d7855ebc19484b66e733b5a8b4ea7803</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Bridge engineering</topic><topic>Bridges (Structures)</topic><topic>Corrosion</topic><topic>Fatigue</topic><topic>Fatigue (Materials)</topic><topic>Mechanical properties</topic><topic>Properties</topic><topic>Reinforced concrete</topic><topic>Steel corrosion</topic><topic>Stiffness</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ma, Yafei</creatorcontrib><creatorcontrib>Wang, Guodong</creatorcontrib><creatorcontrib>Su, Xiaochao</creatorcontrib><creatorcontrib>Wang, Lei</creatorcontrib><creatorcontrib>Zhang, Jianren</creatorcontrib><collection>CrossRef</collection><collection>Gale Business: Insights</collection><collection>Business Insights: Essentials</collection><jtitle>Construction & building materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ma, Yafei</au><au>Wang, Guodong</au><au>Su, Xiaochao</au><au>Wang, Lei</au><au>Zhang, Jianren</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Experimental and modelling of the flexural performance degradation of corroded RC beams under fatigue load</atitle><jtitle>Construction & building materials</jtitle><date>2018-12-10</date><risdate>2018</risdate><volume>191</volume><spage>994</spage><epage>1003</epage><pages>994-1003</pages><issn>0950-0618</issn><eissn>1879-0526</eissn><abstract>•Fatigue loading tests on corroded RC beams are performed.•Load-deflection, fatigue crack of concrete, and failure modes are discussed.•A developed flexural stiffness deterioration model under fatigue is proposed.•Theoretical predictions agree well with the experimental observations.
Corrosion of reinforcing bars accelerates the fatigue damage accumulation and significantly reduces the fatigue life of aging reinforced concrete (RC) bridges. This paper experimentally investigates the effects of corrosion on the fatigue behavior of reinforced concrete beams. An accelerated corrosion test is conducted in the laboratory conditions to obtain various corroded beam specimens. The initial crack width and the crack distribution are discussed. Based on the fatigue loading test, the load-deflection, fatigue crack propagation of concrete, fatigue life and the failure modes of RC beams after different fatigue cycles are investigated. Following that, a developed flexural stiffness calculation model for the corroded beams after fatigue is proposed. This model includes the effects of fatigue, corrosion-induced cracking and fatigue modulus degradation of concrete and other influential factors. The proposed method is validated with the experimental observations from various corroded RC beams of the current paper and available in open literature.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.conbuildmat.2018.10.031</doi><tpages>10</tpages></addata></record> |
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| ispartof | Construction & building materials, 2018-12, Vol.191, p.994-1003 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Bridge engineering Bridges (Structures) Corrosion Fatigue Fatigue (Materials) Mechanical properties Properties Reinforced concrete Steel corrosion Stiffness |
| title | Experimental and modelling of the flexural performance degradation of corroded RC beams under fatigue load |
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