Composite dowels as load introduction devices in concrete-filled steel tubular columns
•An innovative solution of composite dowels connectors was assessed.•These connectors were studied as load introduction devices in composite columns.•The experimental campaign included eleven push tests of CFST columns.•The numerical model was validated with experimental results.•A parametric study...
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| Veröffentlicht in: | Engineering structures 2020-09, Vol.219, p.110805, Article 110805 |
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| creator | Cardoso, Hermano de Sousa Aguiar, Otávio Prates Caldas, Rodrigo Barreto Fakury, Ricardo Hallal |
| description | •An innovative solution of composite dowels connectors was assessed.•These connectors were studied as load introduction devices in composite columns.•The experimental campaign included eleven push tests of CFST columns.•The numerical model was validated with experimental results.•A parametric study was carried out where 161 cases were processed.•A design model was proposed.
The application of composite dowel shear connectors extended to endplate joints for beams and concrete-filled steel tubular (CFST) columns is an innovative construction method that provides an effective load introduction between structural elements. These connectors are designed by performing cutouts in laminated steel plates and this open shaped geometry may ensure that transverse reinforcement rebars are disposed at the shear connection region. In this paper an experimental and numerical study was carried out in order to assess the behavior and the resistance of composite dowel connectors applied in CFST columns with compact sections. For the experimental campaign, push tests were carried out with the load applied on the steel tube, and only the concrete core was supported. Finite element (FE) models were simulated using the software ABAQUS and calibrated against the obtained experimental data. Then, a parametric study was carried out where 161 cases were processed. Finally, a design model was proposed to estimate the ultimate strength which had a good correlation with the studied cases. |
| doi_str_mv | 10.1016/j.engstruct.2020.110805 |
| format | Article |
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The application of composite dowel shear connectors extended to endplate joints for beams and concrete-filled steel tubular (CFST) columns is an innovative construction method that provides an effective load introduction between structural elements. These connectors are designed by performing cutouts in laminated steel plates and this open shaped geometry may ensure that transverse reinforcement rebars are disposed at the shear connection region. In this paper an experimental and numerical study was carried out in order to assess the behavior and the resistance of composite dowel connectors applied in CFST columns with compact sections. For the experimental campaign, push tests were carried out with the load applied on the steel tube, and only the concrete core was supported. Finite element (FE) models were simulated using the software ABAQUS and calibrated against the obtained experimental data. Then, a parametric study was carried out where 161 cases were processed. Finally, a design model was proposed to estimate the ultimate strength which had a good correlation with the studied cases.</description><identifier>ISSN: 0141-0296</identifier><identifier>EISSN: 1873-7323</identifier><identifier>DOI: 10.1016/j.engstruct.2020.110805</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Composite construction ; Composite dowel shear connectors ; Computer simulation ; Concrete ; Concrete columns ; Concrete-filled steel tubular (CFST) ; Connectors ; Correlation analysis ; Dowels ; Finite element method ; Laminated steels ; Mathematical models ; Numerical analysis ; Push tests ; Steel ; Steel columns ; Steel plates ; Structural members ; Ultimate tensile strength</subject><ispartof>Engineering structures, 2020-09, Vol.219, p.110805, Article 110805</ispartof><rights>2020 Elsevier Ltd</rights><rights>Copyright Elsevier BV Sep 15, 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c343t-98cba585dcc7c47fee978ad3fb75a7a9c9c80f04b13515b1a7ea416121caf9183</citedby><cites>FETCH-LOGICAL-c343t-98cba585dcc7c47fee978ad3fb75a7a9c9c80f04b13515b1a7ea416121caf9183</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.engstruct.2020.110805$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Cardoso, Hermano de Sousa</creatorcontrib><creatorcontrib>Aguiar, Otávio Prates</creatorcontrib><creatorcontrib>Caldas, Rodrigo Barreto</creatorcontrib><creatorcontrib>Fakury, Ricardo Hallal</creatorcontrib><title>Composite dowels as load introduction devices in concrete-filled steel tubular columns</title><title>Engineering structures</title><description>•An innovative solution of composite dowels connectors was assessed.•These connectors were studied as load introduction devices in composite columns.•The experimental campaign included eleven push tests of CFST columns.•The numerical model was validated with experimental results.•A parametric study was carried out where 161 cases were processed.•A design model was proposed.
The application of composite dowel shear connectors extended to endplate joints for beams and concrete-filled steel tubular (CFST) columns is an innovative construction method that provides an effective load introduction between structural elements. These connectors are designed by performing cutouts in laminated steel plates and this open shaped geometry may ensure that transverse reinforcement rebars are disposed at the shear connection region. In this paper an experimental and numerical study was carried out in order to assess the behavior and the resistance of composite dowel connectors applied in CFST columns with compact sections. For the experimental campaign, push tests were carried out with the load applied on the steel tube, and only the concrete core was supported. Finite element (FE) models were simulated using the software ABAQUS and calibrated against the obtained experimental data. Then, a parametric study was carried out where 161 cases were processed. Finally, a design model was proposed to estimate the ultimate strength which had a good correlation with the studied cases.</description><subject>Composite construction</subject><subject>Composite dowel shear connectors</subject><subject>Computer simulation</subject><subject>Concrete</subject><subject>Concrete columns</subject><subject>Concrete-filled steel tubular (CFST)</subject><subject>Connectors</subject><subject>Correlation analysis</subject><subject>Dowels</subject><subject>Finite element method</subject><subject>Laminated steels</subject><subject>Mathematical models</subject><subject>Numerical analysis</subject><subject>Push tests</subject><subject>Steel</subject><subject>Steel columns</subject><subject>Steel plates</subject><subject>Structural members</subject><subject>Ultimate tensile strength</subject><issn>0141-0296</issn><issn>1873-7323</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNqFkMtKxDAUhoMoOI4-gwXXHZMmnSTLYfAGA27UbUiTU0nJNGOSKr69GSpuXR34z3-BD6FrglcEk_XtsILxPeU4mbxqcFNUggVuT9CCCE5rTht6ihaYMFLjRq7P0UVKA8a4EQIv0Ns27A8huQyVDV_gU6VT5YO2lRtzDLa0ujBWFj6dgVTEyoTRRMhQ9857sFXKAL7KUzd5HcvXT_sxXaKzXvsEV793iV7v7162j_Xu-eFpu9nVhjKaaylMp1vRWmO4YbwHkFxoS_uOt5praaQRuMesI7QlbUc0B83ImjTE6F4SQZfoZu49xPAxQcpqCFMcy6RqGGMFkMSyuPjsMjGkFKFXh-j2On4rgtURohrUH0R1hKhmiCW5mZOFTEEAUSXjYDRgXYTitcH92_EDCrWA3g</recordid><startdate>20200915</startdate><enddate>20200915</enddate><creator>Cardoso, Hermano de Sousa</creator><creator>Aguiar, Otávio Prates</creator><creator>Caldas, Rodrigo Barreto</creator><creator>Fakury, Ricardo Hallal</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7ST</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><scope>SOI</scope></search><sort><creationdate>20200915</creationdate><title>Composite dowels as load introduction devices in concrete-filled steel tubular columns</title><author>Cardoso, Hermano de Sousa ; Aguiar, Otávio Prates ; Caldas, Rodrigo Barreto ; Fakury, Ricardo Hallal</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c343t-98cba585dcc7c47fee978ad3fb75a7a9c9c80f04b13515b1a7ea416121caf9183</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Composite construction</topic><topic>Composite dowel shear connectors</topic><topic>Computer simulation</topic><topic>Concrete</topic><topic>Concrete columns</topic><topic>Concrete-filled steel tubular (CFST)</topic><topic>Connectors</topic><topic>Correlation analysis</topic><topic>Dowels</topic><topic>Finite element method</topic><topic>Laminated steels</topic><topic>Mathematical models</topic><topic>Numerical analysis</topic><topic>Push tests</topic><topic>Steel</topic><topic>Steel columns</topic><topic>Steel plates</topic><topic>Structural members</topic><topic>Ultimate tensile strength</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cardoso, Hermano de Sousa</creatorcontrib><creatorcontrib>Aguiar, Otávio Prates</creatorcontrib><creatorcontrib>Caldas, Rodrigo Barreto</creatorcontrib><creatorcontrib>Fakury, Ricardo Hallal</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Environment Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Engineering structures</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cardoso, Hermano de Sousa</au><au>Aguiar, Otávio Prates</au><au>Caldas, Rodrigo Barreto</au><au>Fakury, Ricardo Hallal</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Composite dowels as load introduction devices in concrete-filled steel tubular columns</atitle><jtitle>Engineering structures</jtitle><date>2020-09-15</date><risdate>2020</risdate><volume>219</volume><spage>110805</spage><pages>110805-</pages><artnum>110805</artnum><issn>0141-0296</issn><eissn>1873-7323</eissn><abstract>•An innovative solution of composite dowels connectors was assessed.•These connectors were studied as load introduction devices in composite columns.•The experimental campaign included eleven push tests of CFST columns.•The numerical model was validated with experimental results.•A parametric study was carried out where 161 cases were processed.•A design model was proposed.
The application of composite dowel shear connectors extended to endplate joints for beams and concrete-filled steel tubular (CFST) columns is an innovative construction method that provides an effective load introduction between structural elements. These connectors are designed by performing cutouts in laminated steel plates and this open shaped geometry may ensure that transverse reinforcement rebars are disposed at the shear connection region. In this paper an experimental and numerical study was carried out in order to assess the behavior and the resistance of composite dowel connectors applied in CFST columns with compact sections. For the experimental campaign, push tests were carried out with the load applied on the steel tube, and only the concrete core was supported. Finite element (FE) models were simulated using the software ABAQUS and calibrated against the obtained experimental data. Then, a parametric study was carried out where 161 cases were processed. Finally, a design model was proposed to estimate the ultimate strength which had a good correlation with the studied cases.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.engstruct.2020.110805</doi></addata></record> |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Composite construction Composite dowel shear connectors Computer simulation Concrete Concrete columns Concrete-filled steel tubular (CFST) Connectors Correlation analysis Dowels Finite element method Laminated steels Mathematical models Numerical analysis Push tests Steel Steel columns Steel plates Structural members Ultimate tensile strength |
| title | Composite dowels as load introduction devices in concrete-filled steel tubular columns |
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