Performance Assessment of Corroded Reinforced Concrete Structure Considering Bond Deterioration
AbstractThis paper presents an assessment of the lateral load capacity and ductility of a 21-year-old reinforced concrete (RC) structure situated in a marine environment and affected by rebar corrosion. Nonlinear pushover analysis is carried out for the structure by modeling the hinges. The conseque...
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| Veröffentlicht in: | Journal of performance of constructed facilities 2020-04, Vol.34 (2) |
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| creator | Parulekar, Y. M Dutta, D Thodetti, N Bhargava, K |
| description | AbstractThis paper presents an assessment of the lateral load capacity and ductility of a 21-year-old reinforced concrete (RC) structure situated in a marine environment and affected by rebar corrosion. Nonlinear pushover analysis is carried out for the structure by modeling the hinges. The consequence of corrosion is accounted for in the moment rotation characteristics of the hinges by considering the reduction in bond strength, loss of rebar diameter, and reduction in the mechanical properties of steel. The basic bond stress–slip relationship from an internationally established model code is modified to account for corrosion using a bond model. This bond model is used to obtain the hinge properties of the corroded rebar. The simplified beam macromodel developed considering these modified hinge properties due to corrosion is validated with four-point bending tests carried out on beams and similar experiments from the literature. Moreover, a simulation is also carried out using a two-dimensional finite element micromodel of a beam using the modified bond model for the rebar affected by corrosion. The load deflection characteristics of the micro and macromodels are found to agree well for the four-point bending load for different levels of corrosion. The proposed beam model, considering the effect of rebar corrosion, is used for evaluation of performance of the 21-year-old corroded RC structure for the design basis earthquake load. Subsequently, a seismic assessment methodology is proposed for corroded RC structures. |
| doi_str_mv | 10.1061/(ASCE)CF.1943-5509.0001411 |
| format | Article |
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M ; Dutta, D ; Thodetti, N ; Bhargava, K</creator><creatorcontrib>Parulekar, Y. M ; Dutta, D ; Thodetti, N ; Bhargava, K</creatorcontrib><description>AbstractThis paper presents an assessment of the lateral load capacity and ductility of a 21-year-old reinforced concrete (RC) structure situated in a marine environment and affected by rebar corrosion. Nonlinear pushover analysis is carried out for the structure by modeling the hinges. The consequence of corrosion is accounted for in the moment rotation characteristics of the hinges by considering the reduction in bond strength, loss of rebar diameter, and reduction in the mechanical properties of steel. The basic bond stress–slip relationship from an internationally established model code is modified to account for corrosion using a bond model. This bond model is used to obtain the hinge properties of the corroded rebar. The simplified beam macromodel developed considering these modified hinge properties due to corrosion is validated with four-point bending tests carried out on beams and similar experiments from the literature. Moreover, a simulation is also carried out using a two-dimensional finite element micromodel of a beam using the modified bond model for the rebar affected by corrosion. The load deflection characteristics of the micro and macromodels are found to agree well for the four-point bending load for different levels of corrosion. The proposed beam model, considering the effect of rebar corrosion, is used for evaluation of performance of the 21-year-old corroded RC structure for the design basis earthquake load. Subsequently, a seismic assessment methodology is proposed for corroded RC structures.</description><identifier>ISSN: 0887-3828</identifier><identifier>EISSN: 1943-5509</identifier><identifier>DOI: 10.1061/(ASCE)CF.1943-5509.0001411</identifier><language>eng</language><publisher>New York: American Society of Civil Engineers</publisher><subject>Bond strength ; Bond stress ; Bonding strength ; Computer simulation ; Concrete structures ; Corrosion ; Corrosion effects ; Diameters ; Ductility tests ; Earthquake loads ; Lateral loads ; Marine environment ; Mechanical properties ; Nonlinear analysis ; Offshore structures ; Performance assessment ; Performance evaluation ; Rebar ; Reduction ; Reinforced concrete ; Reinforcing steels ; Seismic analysis ; Seismic response ; Technical Papers ; Two dimensional models</subject><ispartof>Journal of performance of constructed facilities, 2020-04, Vol.34 (2)</ispartof><rights>2020 American Society of Civil Engineers</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a376t-bce03b3ba249f2468eb415a0deb65f6c58508437ec518febdb7e438bbbebc04d3</citedby><cites>FETCH-LOGICAL-a376t-bce03b3ba249f2468eb415a0deb65f6c58508437ec518febdb7e438bbbebc04d3</cites><orcidid>0000-0002-2083-7778</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttp://ascelibrary.org/doi/pdf/10.1061/(ASCE)CF.1943-5509.0001411$$EPDF$$P50$$Gasce$$H</linktopdf><linktohtml>$$Uhttp://ascelibrary.org/doi/abs/10.1061/(ASCE)CF.1943-5509.0001411$$EHTML$$P50$$Gasce$$H</linktohtml><link.rule.ids>314,776,780,27903,27904,75939,75947</link.rule.ids></links><search><creatorcontrib>Parulekar, Y. M</creatorcontrib><creatorcontrib>Dutta, D</creatorcontrib><creatorcontrib>Thodetti, N</creatorcontrib><creatorcontrib>Bhargava, K</creatorcontrib><title>Performance Assessment of Corroded Reinforced Concrete Structure Considering Bond Deterioration</title><title>Journal of performance of constructed facilities</title><description>AbstractThis paper presents an assessment of the lateral load capacity and ductility of a 21-year-old reinforced concrete (RC) structure situated in a marine environment and affected by rebar corrosion. Nonlinear pushover analysis is carried out for the structure by modeling the hinges. The consequence of corrosion is accounted for in the moment rotation characteristics of the hinges by considering the reduction in bond strength, loss of rebar diameter, and reduction in the mechanical properties of steel. The basic bond stress–slip relationship from an internationally established model code is modified to account for corrosion using a bond model. This bond model is used to obtain the hinge properties of the corroded rebar. The simplified beam macromodel developed considering these modified hinge properties due to corrosion is validated with four-point bending tests carried out on beams and similar experiments from the literature. Moreover, a simulation is also carried out using a two-dimensional finite element micromodel of a beam using the modified bond model for the rebar affected by corrosion. The load deflection characteristics of the micro and macromodels are found to agree well for the four-point bending load for different levels of corrosion. The proposed beam model, considering the effect of rebar corrosion, is used for evaluation of performance of the 21-year-old corroded RC structure for the design basis earthquake load. Subsequently, a seismic assessment methodology is proposed for corroded RC structures.</description><subject>Bond strength</subject><subject>Bond stress</subject><subject>Bonding strength</subject><subject>Computer simulation</subject><subject>Concrete structures</subject><subject>Corrosion</subject><subject>Corrosion effects</subject><subject>Diameters</subject><subject>Ductility tests</subject><subject>Earthquake loads</subject><subject>Lateral loads</subject><subject>Marine environment</subject><subject>Mechanical properties</subject><subject>Nonlinear analysis</subject><subject>Offshore structures</subject><subject>Performance assessment</subject><subject>Performance evaluation</subject><subject>Rebar</subject><subject>Reduction</subject><subject>Reinforced concrete</subject><subject>Reinforcing steels</subject><subject>Seismic analysis</subject><subject>Seismic response</subject><subject>Technical Papers</subject><subject>Two dimensional models</subject><issn>0887-3828</issn><issn>1943-5509</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp1kMFOwzAQRC0EEqXwDxFc4JBix3bicCuhBaRKIApny3Y2KBW1yzo98PckaoETp13NzsxKj5BzRieM5uz6crqsZlfVfMJKwVMpaTmhlDLB2AEZ_WqHZESVKlKuMnVMTmJc9aasKIsR0c-ATcC18Q6SaYwQ4xp8l4QmqQJiqKFOXqD1vcf1axW8Q-ggWXa4dd0WYZBiWwO2_j25Db5O7vo7tgFN1wZ_So4a8xHhbD_H5G0-e60e0sXT_WM1XaSGF3mXWgeUW25NJsomE7kCK5g0tAabyyZ3UkmqBC_ASaYasLUtQHBlrQXrqKj5mFzsejcYPrcQO70KW_T9S51xkZVMUcl7183O5TDEiNDoDbZrg1-aUT0A1XoAqqu5HuDpAZ7eA-3D-S5sooO_-p_k_8FvpDR8Dw</recordid><startdate>20200401</startdate><enddate>20200401</enddate><creator>Parulekar, Y. M</creator><creator>Dutta, D</creator><creator>Thodetti, N</creator><creator>Bhargava, K</creator><general>American Society of Civil Engineers</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><orcidid>https://orcid.org/0000-0002-2083-7778</orcidid></search><sort><creationdate>20200401</creationdate><title>Performance Assessment of Corroded Reinforced Concrete Structure Considering Bond Deterioration</title><author>Parulekar, Y. M ; Dutta, D ; Thodetti, N ; Bhargava, K</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a376t-bce03b3ba249f2468eb415a0deb65f6c58508437ec518febdb7e438bbbebc04d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Bond strength</topic><topic>Bond stress</topic><topic>Bonding strength</topic><topic>Computer simulation</topic><topic>Concrete structures</topic><topic>Corrosion</topic><topic>Corrosion effects</topic><topic>Diameters</topic><topic>Ductility tests</topic><topic>Earthquake loads</topic><topic>Lateral loads</topic><topic>Marine environment</topic><topic>Mechanical properties</topic><topic>Nonlinear analysis</topic><topic>Offshore structures</topic><topic>Performance assessment</topic><topic>Performance evaluation</topic><topic>Rebar</topic><topic>Reduction</topic><topic>Reinforced concrete</topic><topic>Reinforcing steels</topic><topic>Seismic analysis</topic><topic>Seismic response</topic><topic>Technical Papers</topic><topic>Two dimensional models</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Parulekar, Y. M</creatorcontrib><creatorcontrib>Dutta, D</creatorcontrib><creatorcontrib>Thodetti, N</creatorcontrib><creatorcontrib>Bhargava, K</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of performance of constructed facilities</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Parulekar, Y. M</au><au>Dutta, D</au><au>Thodetti, N</au><au>Bhargava, K</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Performance Assessment of Corroded Reinforced Concrete Structure Considering Bond Deterioration</atitle><jtitle>Journal of performance of constructed facilities</jtitle><date>2020-04-01</date><risdate>2020</risdate><volume>34</volume><issue>2</issue><issn>0887-3828</issn><eissn>1943-5509</eissn><abstract>AbstractThis paper presents an assessment of the lateral load capacity and ductility of a 21-year-old reinforced concrete (RC) structure situated in a marine environment and affected by rebar corrosion. Nonlinear pushover analysis is carried out for the structure by modeling the hinges. The consequence of corrosion is accounted for in the moment rotation characteristics of the hinges by considering the reduction in bond strength, loss of rebar diameter, and reduction in the mechanical properties of steel. The basic bond stress–slip relationship from an internationally established model code is modified to account for corrosion using a bond model. This bond model is used to obtain the hinge properties of the corroded rebar. The simplified beam macromodel developed considering these modified hinge properties due to corrosion is validated with four-point bending tests carried out on beams and similar experiments from the literature. Moreover, a simulation is also carried out using a two-dimensional finite element micromodel of a beam using the modified bond model for the rebar affected by corrosion. The load deflection characteristics of the micro and macromodels are found to agree well for the four-point bending load for different levels of corrosion. The proposed beam model, considering the effect of rebar corrosion, is used for evaluation of performance of the 21-year-old corroded RC structure for the design basis earthquake load. Subsequently, a seismic assessment methodology is proposed for corroded RC structures.</abstract><cop>New York</cop><pub>American Society of Civil Engineers</pub><doi>10.1061/(ASCE)CF.1943-5509.0001411</doi><orcidid>https://orcid.org/0000-0002-2083-7778</orcidid></addata></record> |
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| source | American Society of Civil Engineers:NESLI2:Journals:2014 |
| subjects | Bond strength Bond stress Bonding strength Computer simulation Concrete structures Corrosion Corrosion effects Diameters Ductility tests Earthquake loads Lateral loads Marine environment Mechanical properties Nonlinear analysis Offshore structures Performance assessment Performance evaluation Rebar Reduction Reinforced concrete Reinforcing steels Seismic analysis Seismic response Technical Papers Two dimensional models |
| title | Performance Assessment of Corroded Reinforced Concrete Structure Considering Bond Deterioration |
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