Reliability analysis of RC beams strengthened for torsion with carbon fibre composites
Two sets of reliability analyses for two beam series strengthened with carbon fibre composites (CFC) in different ways and subjected to torsional moments are described in this paper. The analyses consider three failure functions and the system is regarded as a series system formed by these three lim...
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| Veröffentlicht in: | Structural concrete : journal of the FIB 2014-03, Vol.15 (1), p.38-44 |
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| creator | Souza, Osvaldo Luiz de Carvalho Sánchez Filho, Emil de Souza Vaz, Luiz Eloy Silva Filho, Júlio Jerônimo Holtz |
| description | Two sets of reliability analyses for two beam series strengthened with carbon fibre composites (CFC) in different ways and subjected to torsional moments are described in this paper. The analyses consider three failure functions and the system is regarded as a series system formed by these three limit state modes.
Five random variables are taken into account in the first set of analyses. The analyses are performed for different torsional moment ratios, defined as the ratio of the torsional moment due to live loads to the total torsional moment. The system reliability indexes and the factors of importance associated with each random variable are obtained. In the second set of reliability analyses, only the two most relevant random variables selected in the first set of analyses according to the values of their factors of importance are considered, and new reliability indexes are determined. The examples show that despite the constant value of the total torsional moment, the increase in the torsional moment ratio leads to a decrease in the system reliability levels. The fact that the values of the reliability indexes obtained in both sets of reliability analyses are very similar validates the efficiency of the sensitivity analyses. |
| doi_str_mv | 10.1002/suco.201300013 |
| format | Article |
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Five random variables are taken into account in the first set of analyses. The analyses are performed for different torsional moment ratios, defined as the ratio of the torsional moment due to live loads to the total torsional moment. The system reliability indexes and the factors of importance associated with each random variable are obtained. In the second set of reliability analyses, only the two most relevant random variables selected in the first set of analyses according to the values of their factors of importance are considered, and new reliability indexes are determined. The examples show that despite the constant value of the total torsional moment, the increase in the torsional moment ratio leads to a decrease in the system reliability levels. The fact that the values of the reliability indexes obtained in both sets of reliability analyses are very similar validates the efficiency of the sensitivity analyses.</description><identifier>ISSN: 1464-4177</identifier><identifier>EISSN: 1751-7648</identifier><identifier>DOI: 10.1002/suco.201300013</identifier><language>eng</language><publisher>Berlin: WILEY-VCH Verlag</publisher><subject>analysis and design methods ; Applied sciences ; Beams (structural) ; building materials / construction materials ; Building structure ; Buildings. Public works ; Carbon fibers ; carbon fibre composites ; Carbon fibres ; Constants ; Construction (buildings and works) ; Durability. Pathology. Repairing. Maintenance ; Eurocode ; Exact sciences and technology ; Random variables ; Reinforced concrete ; Reinforced concrete structure ; Reliability analysis ; reliability index ; Repair (reinforcement, strenthening) ; Sensitivity analysis ; Stresses. Safety ; Structural analysis. Stresses ; System reliability ; Torsion ; torsion in RC beams</subject><ispartof>Structural concrete : journal of the FIB, 2014-03, Vol.15 (1), p.38-44</ispartof><rights>Copyright © 2014 Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin</rights><rights>2015 INIST-CNRS</rights><rights>Copyright Blackwell Publishing Ltd. Mar 2014</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5123-77113b4bde64122baadd12571ad963f511282dde1f90e8b10da6cc5f1eb449f63</citedby><cites>FETCH-LOGICAL-c5123-77113b4bde64122baadd12571ad963f511282dde1f90e8b10da6cc5f1eb449f63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fsuco.201300013$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fsuco.201300013$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,778,782,1414,27907,27908,45557,45558</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28245084$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Souza, Osvaldo Luiz de Carvalho</creatorcontrib><creatorcontrib>Sánchez Filho, Emil de Souza</creatorcontrib><creatorcontrib>Vaz, Luiz Eloy</creatorcontrib><creatorcontrib>Silva Filho, Júlio Jerônimo Holtz</creatorcontrib><title>Reliability analysis of RC beams strengthened for torsion with carbon fibre composites</title><title>Structural concrete : journal of the FIB</title><addtitle>Structural Concrete</addtitle><description>Two sets of reliability analyses for two beam series strengthened with carbon fibre composites (CFC) in different ways and subjected to torsional moments are described in this paper. The analyses consider three failure functions and the system is regarded as a series system formed by these three limit state modes.
Five random variables are taken into account in the first set of analyses. The analyses are performed for different torsional moment ratios, defined as the ratio of the torsional moment due to live loads to the total torsional moment. The system reliability indexes and the factors of importance associated with each random variable are obtained. In the second set of reliability analyses, only the two most relevant random variables selected in the first set of analyses according to the values of their factors of importance are considered, and new reliability indexes are determined. The examples show that despite the constant value of the total torsional moment, the increase in the torsional moment ratio leads to a decrease in the system reliability levels. The fact that the values of the reliability indexes obtained in both sets of reliability analyses are very similar validates the efficiency of the sensitivity analyses.</description><subject>analysis and design methods</subject><subject>Applied sciences</subject><subject>Beams (structural)</subject><subject>building materials / construction materials</subject><subject>Building structure</subject><subject>Buildings. Public works</subject><subject>Carbon fibers</subject><subject>carbon fibre composites</subject><subject>Carbon fibres</subject><subject>Constants</subject><subject>Construction (buildings and works)</subject><subject>Durability. Pathology. Repairing. Maintenance</subject><subject>Eurocode</subject><subject>Exact sciences and technology</subject><subject>Random variables</subject><subject>Reinforced concrete</subject><subject>Reinforced concrete structure</subject><subject>Reliability analysis</subject><subject>reliability index</subject><subject>Repair (reinforcement, strenthening)</subject><subject>Sensitivity analysis</subject><subject>Stresses. Safety</subject><subject>Structural analysis. Stresses</subject><subject>System reliability</subject><subject>Torsion</subject><subject>torsion in RC beams</subject><issn>1464-4177</issn><issn>1751-7648</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNkc1vEzEQxVcIJErhytkSQuKywePP3SMKUJAqKlIK3Czba1OXzTp4Nir573GUKkJc6GXmHX7vjTSvaZ4DXQCl7DVufV4wCpzSOh40J6AltFqJ7mHVQolWgNaPmyeIN5WvWp40X1dhTNalMc07Yic77jAhyZGslsQFu0aCcwnTj_k6TGEgMRcy54IpT-Q2zdfE2-KqjsmVQHxebzKmOeDT5lG0I4Znd_u0uXr_7svyQ3t-cfZx-ea89RIYb7UG4E64ISgBjDlrhwGY1GCHXvEoAVjHhiFA7GnoHNDBKu9lhOCE6KPip82rQ-6m5F_bgLNZJ_RhHO0U8hYNKMGYlh2T90BZz5VWPb83ynVFX_yD3uRtqX_cU0Arx0RfqcWB8iUjlhDNpqS1LTsD1OzLM_vyzLG8anh5F2vR2zEWO_mER1f9ipC0E5XrD9xtGsPuP6nm8mp58feN9uBNOIffR68tP43SXEvz7dOZWX3ml-L76q2R_A8-zbkN</recordid><startdate>201403</startdate><enddate>201403</enddate><creator>Souza, Osvaldo Luiz de Carvalho</creator><creator>Sánchez Filho, Emil de Souza</creator><creator>Vaz, Luiz Eloy</creator><creator>Silva Filho, Júlio Jerônimo Holtz</creator><general>WILEY-VCH Verlag</general><general>WILEY‐VCH Verlag</general><general>Fib</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>201403</creationdate><title>Reliability analysis of RC beams strengthened for torsion with carbon fibre composites</title><author>Souza, Osvaldo Luiz de Carvalho ; Sánchez Filho, Emil de Souza ; Vaz, Luiz Eloy ; Silva Filho, Júlio Jerônimo Holtz</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5123-77113b4bde64122baadd12571ad963f511282dde1f90e8b10da6cc5f1eb449f63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>analysis and design methods</topic><topic>Applied sciences</topic><topic>Beams (structural)</topic><topic>building materials / construction materials</topic><topic>Building structure</topic><topic>Buildings. Public works</topic><topic>Carbon fibers</topic><topic>carbon fibre composites</topic><topic>Carbon fibres</topic><topic>Constants</topic><topic>Construction (buildings and works)</topic><topic>Durability. Pathology. Repairing. Maintenance</topic><topic>Eurocode</topic><topic>Exact sciences and technology</topic><topic>Random variables</topic><topic>Reinforced concrete</topic><topic>Reinforced concrete structure</topic><topic>Reliability analysis</topic><topic>reliability index</topic><topic>Repair (reinforcement, strenthening)</topic><topic>Sensitivity analysis</topic><topic>Stresses. Safety</topic><topic>Structural analysis. Stresses</topic><topic>System reliability</topic><topic>Torsion</topic><topic>torsion in RC beams</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Souza, Osvaldo Luiz de Carvalho</creatorcontrib><creatorcontrib>Sánchez Filho, Emil de Souza</creatorcontrib><creatorcontrib>Vaz, Luiz Eloy</creatorcontrib><creatorcontrib>Silva Filho, Júlio Jerônimo Holtz</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Structural concrete : journal of the FIB</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Souza, Osvaldo Luiz de Carvalho</au><au>Sánchez Filho, Emil de Souza</au><au>Vaz, Luiz Eloy</au><au>Silva Filho, Júlio Jerônimo Holtz</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reliability analysis of RC beams strengthened for torsion with carbon fibre composites</atitle><jtitle>Structural concrete : journal of the FIB</jtitle><addtitle>Structural Concrete</addtitle><date>2014-03</date><risdate>2014</risdate><volume>15</volume><issue>1</issue><spage>38</spage><epage>44</epage><pages>38-44</pages><issn>1464-4177</issn><eissn>1751-7648</eissn><abstract>Two sets of reliability analyses for two beam series strengthened with carbon fibre composites (CFC) in different ways and subjected to torsional moments are described in this paper. The analyses consider three failure functions and the system is regarded as a series system formed by these three limit state modes.
Five random variables are taken into account in the first set of analyses. The analyses are performed for different torsional moment ratios, defined as the ratio of the torsional moment due to live loads to the total torsional moment. The system reliability indexes and the factors of importance associated with each random variable are obtained. In the second set of reliability analyses, only the two most relevant random variables selected in the first set of analyses according to the values of their factors of importance are considered, and new reliability indexes are determined. The examples show that despite the constant value of the total torsional moment, the increase in the torsional moment ratio leads to a decrease in the system reliability levels. The fact that the values of the reliability indexes obtained in both sets of reliability analyses are very similar validates the efficiency of the sensitivity analyses.</abstract><cop>Berlin</cop><pub>WILEY-VCH Verlag</pub><doi>10.1002/suco.201300013</doi><tpages>7</tpages></addata></record> |
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| subjects | analysis and design methods Applied sciences Beams (structural) building materials / construction materials Building structure Buildings. Public works Carbon fibers carbon fibre composites Carbon fibres Constants Construction (buildings and works) Durability. Pathology. Repairing. Maintenance Eurocode Exact sciences and technology Random variables Reinforced concrete Reinforced concrete structure Reliability analysis reliability index Repair (reinforcement, strenthening) Sensitivity analysis Stresses. Safety Structural analysis. Stresses System reliability Torsion torsion in RC beams |
| title | Reliability analysis of RC beams strengthened for torsion with carbon fibre composites |
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