Further tests on thin steel and composite fabricated stubs
Results for tests conducted on thin cold fabricated steel–concrete stubs are presented. The studied sections were made of two cold formed U shaped steel plates welded to form a steel box or an I shaped steel section. The steel cross section dimensions were: 100×70×2mm. The main studied parameters we...
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| description | Results for tests conducted on thin cold fabricated steel–concrete stubs are presented. The studied sections were made of two cold formed U shaped steel plates welded to form a steel box or an I shaped steel section. The steel cross section dimensions were: 100×70×2mm. The main studied parameters were: the stub height, the welding fillet nature and its location, the steel cross section shape, and the in filled concrete and its age. A total of 48 stubs were tested, 22 were empty and 26 were filled with concrete. The concrete was made of crushed slag from blast furnace as a natural gravel substitute. All failure loads were predicted numerically using Abacus program and by Euro-codes EC3 and EC4 for steel and composite stubs respectively. From the test results it was confirmed that the length and the discontinuous welding fillet for empty stubs had a drastic effect on the load carrying capacity and the failure mode was mainly a premature local buckling mode. Test results showed that I shaped steel stubs had a higher compression load carrying capacity with a lower load decrease rate compared to fabricated rectangular steel stubs with height over 200mm. Providing rectangular steel stubs with continuous welding on mid-depth improved the load carrying capacity for both rectangular empty steel and composite stubs. Regarding the concrete age effect, test results obtained from testing composite stubs after 3years of concrete casting date, showed enhanced performance. Both numerical and test results were in good agreement whereas EC3 and EC4 predictions were not conservative.
► Results on axially loaded steel and composite fabricated stubs are presented. ► Studied parameters were: welding route, shape of steel cross section. ► Continuous welding fillets improved the behavior. ► I shaped steel and composite stubs had ductile behavior. ► The in-filled slag concrete and its age improved the load bearing capacity. |
| doi_str_mv | 10.1016/j.jcsr.2012.11.006 |
| format | Article |
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► Results on axially loaded steel and composite fabricated stubs are presented. ► Studied parameters were: welding route, shape of steel cross section. ► Continuous welding fillets improved the behavior. ► I shaped steel and composite stubs had ductile behavior. ► The in-filled slag concrete and its age improved the load bearing capacity.</description><identifier>ISSN: 0143-974X</identifier><identifier>EISSN: 1873-5983</identifier><identifier>DOI: 10.1016/j.jcsr.2012.11.006</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Age ; Bearing strength ; Composite stubs ; Compression load carrying capacity ; Concretes ; Fabricated steel stubs ; Fillets ; Load carrying capacity ; Local stability ; Mathematical models ; Structural steels ; Thin welded cold formed ; Welding</subject><ispartof>Journal of constructional steel research, 2013-02, Vol.81, p.124-137</ispartof><rights>2012 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c333t-733fe01a1cd0ac744caecf36d7f89ee368d48bd941782e57039e36de2f5126313</citedby><cites>FETCH-LOGICAL-c333t-733fe01a1cd0ac744caecf36d7f89ee368d48bd941782e57039e36de2f5126313</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0143974X12002477$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Zeghiche, Jahid</creatorcontrib><title>Further tests on thin steel and composite fabricated stubs</title><title>Journal of constructional steel research</title><description>Results for tests conducted on thin cold fabricated steel–concrete stubs are presented. The studied sections were made of two cold formed U shaped steel plates welded to form a steel box or an I shaped steel section. The steel cross section dimensions were: 100×70×2mm. The main studied parameters were: the stub height, the welding fillet nature and its location, the steel cross section shape, and the in filled concrete and its age. A total of 48 stubs were tested, 22 were empty and 26 were filled with concrete. The concrete was made of crushed slag from blast furnace as a natural gravel substitute. All failure loads were predicted numerically using Abacus program and by Euro-codes EC3 and EC4 for steel and composite stubs respectively. From the test results it was confirmed that the length and the discontinuous welding fillet for empty stubs had a drastic effect on the load carrying capacity and the failure mode was mainly a premature local buckling mode. Test results showed that I shaped steel stubs had a higher compression load carrying capacity with a lower load decrease rate compared to fabricated rectangular steel stubs with height over 200mm. Providing rectangular steel stubs with continuous welding on mid-depth improved the load carrying capacity for both rectangular empty steel and composite stubs. Regarding the concrete age effect, test results obtained from testing composite stubs after 3years of concrete casting date, showed enhanced performance. Both numerical and test results were in good agreement whereas EC3 and EC4 predictions were not conservative.
► Results on axially loaded steel and composite fabricated stubs are presented. ► Studied parameters were: welding route, shape of steel cross section. ► Continuous welding fillets improved the behavior. ► I shaped steel and composite stubs had ductile behavior. ► The in-filled slag concrete and its age improved the load bearing capacity.</description><subject>Age</subject><subject>Bearing strength</subject><subject>Composite stubs</subject><subject>Compression load carrying capacity</subject><subject>Concretes</subject><subject>Fabricated steel stubs</subject><subject>Fillets</subject><subject>Load carrying capacity</subject><subject>Local stability</subject><subject>Mathematical models</subject><subject>Structural steels</subject><subject>Thin welded cold formed</subject><subject>Welding</subject><issn>0143-974X</issn><issn>1873-5983</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LxDAQhoMouH78AU89emnNZNomFS-yuCoseFHwFrLJlE3ptmuSCv57u6xnTwMz7zPMPIzdAC-AQ33XFZ2NoRAcRAFQcF6fsAUoiXnVKDxlCw4l5o0sP8_ZRYwd51w1qBbsfjWFtKWQJYopZuOQpa0fspiI-swMLrPjbj9GnyhrzSZ4axK5eTxt4hU7a00f6fqvXrKP1dP78iVfvz2_Lh_XuUXElEvEljgYsI4bK8vSGrIt1k62qiHCWrlSbVxTglSCKsmxmZuORFuBqBHwkt0e9-7D-DXNZ-qdj5b63gw0TlFDXQqBNZfVHBXHqA1jjIFavQ9-Z8KPBq4PonSnD6L0QZQG0LOoGXo4QjQ_8e0p6Gg9DZacD2STdqP_D_8FIm1xVQ</recordid><startdate>20130201</startdate><enddate>20130201</enddate><creator>Zeghiche, Jahid</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>20130201</creationdate><title>Further tests on thin steel and composite fabricated stubs</title><author>Zeghiche, Jahid</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c333t-733fe01a1cd0ac744caecf36d7f89ee368d48bd941782e57039e36de2f5126313</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Age</topic><topic>Bearing strength</topic><topic>Composite stubs</topic><topic>Compression load carrying capacity</topic><topic>Concretes</topic><topic>Fabricated steel stubs</topic><topic>Fillets</topic><topic>Load carrying capacity</topic><topic>Local stability</topic><topic>Mathematical models</topic><topic>Structural steels</topic><topic>Thin welded cold formed</topic><topic>Welding</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zeghiche, Jahid</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of constructional steel research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zeghiche, Jahid</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Further tests on thin steel and composite fabricated stubs</atitle><jtitle>Journal of constructional steel research</jtitle><date>2013-02-01</date><risdate>2013</risdate><volume>81</volume><spage>124</spage><epage>137</epage><pages>124-137</pages><issn>0143-974X</issn><eissn>1873-5983</eissn><abstract>Results for tests conducted on thin cold fabricated steel–concrete stubs are presented. The studied sections were made of two cold formed U shaped steel plates welded to form a steel box or an I shaped steel section. The steel cross section dimensions were: 100×70×2mm. The main studied parameters were: the stub height, the welding fillet nature and its location, the steel cross section shape, and the in filled concrete and its age. A total of 48 stubs were tested, 22 were empty and 26 were filled with concrete. The concrete was made of crushed slag from blast furnace as a natural gravel substitute. All failure loads were predicted numerically using Abacus program and by Euro-codes EC3 and EC4 for steel and composite stubs respectively. From the test results it was confirmed that the length and the discontinuous welding fillet for empty stubs had a drastic effect on the load carrying capacity and the failure mode was mainly a premature local buckling mode. Test results showed that I shaped steel stubs had a higher compression load carrying capacity with a lower load decrease rate compared to fabricated rectangular steel stubs with height over 200mm. Providing rectangular steel stubs with continuous welding on mid-depth improved the load carrying capacity for both rectangular empty steel and composite stubs. Regarding the concrete age effect, test results obtained from testing composite stubs after 3years of concrete casting date, showed enhanced performance. Both numerical and test results were in good agreement whereas EC3 and EC4 predictions were not conservative.
► Results on axially loaded steel and composite fabricated stubs are presented. ► Studied parameters were: welding route, shape of steel cross section. ► Continuous welding fillets improved the behavior. ► I shaped steel and composite stubs had ductile behavior. ► The in-filled slag concrete and its age improved the load bearing capacity.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.jcsr.2012.11.006</doi><tpages>14</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Age Bearing strength Composite stubs Compression load carrying capacity Concretes Fabricated steel stubs Fillets Load carrying capacity Local stability Mathematical models Structural steels Thin welded cold formed Welding |
| title | Further tests on thin steel and composite fabricated stubs |
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