Elastic flange local buckling of I-shaped beams considering effect of web restraint
The 2010 AISC flexural strength of I-shaped beams with slender flange was proposed based on Johnson (1985)’s experimental plate bucking coefficient (kc). However, our close examination revealed that most of I-beam specimens tested by Johnson to derive kc had section configuration of slender web and...
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| Veröffentlicht in: | Thin-walled structures 2016-08, Vol.105, p.101-111 |
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| creator | Han, Kyu-Hong Lee, Cheol-Ho |
| description | The 2010 AISC flexural strength of I-shaped beams with slender flange was proposed based on Johnson (1985)’s experimental plate bucking coefficient (kc). However, our close examination revealed that most of I-beam specimens tested by Johnson to derive kc had section configuration of slender web and noncompact flange, indicating the inappropriateness of the test database itself and probable underestimation of web restraint effect in the AISC codification. In this paper, the effect of web slenderness on the elastic flange local buckling is analytically investigated using the mixed variational approach, and more accurate but still practical formula is proposed.
•The test data for elastic FLB strength of I beams in the AISC Specification found to be inconsistent.•More rational and theoretical measure for web restraint effect on elastic FLB of I beams proposed.•More accurate but still practical formula for elastic FLB proposed using variational approach. |
| doi_str_mv | 10.1016/j.tws.2016.04.001 |
| format | Article |
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•The test data for elastic FLB strength of I beams in the AISC Specification found to be inconsistent.•More rational and theoretical measure for web restraint effect on elastic FLB of I beams proposed.•More accurate but still practical formula for elastic FLB proposed using variational approach.</description><identifier>ISSN: 0263-8231</identifier><identifier>EISSN: 1879-3223</identifier><identifier>DOI: 10.1016/j.tws.2016.04.001</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Buckling ; Constraints ; Flange local buckling ; Flanges ; H beams ; I beams ; I-shaped beams ; Mathematical analysis ; Mixed variational principle ; Plates (structural members) ; Slender flange ; Web slenderness</subject><ispartof>Thin-walled structures, 2016-08, Vol.105, p.101-111</ispartof><rights>2016 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c330t-5fa8ea95a03bf256e31177520b15f02165940eb413a38e66b983f4800170e6583</citedby><cites>FETCH-LOGICAL-c330t-5fa8ea95a03bf256e31177520b15f02165940eb413a38e66b983f4800170e6583</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.tws.2016.04.001$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Han, Kyu-Hong</creatorcontrib><creatorcontrib>Lee, Cheol-Ho</creatorcontrib><title>Elastic flange local buckling of I-shaped beams considering effect of web restraint</title><title>Thin-walled structures</title><description>The 2010 AISC flexural strength of I-shaped beams with slender flange was proposed based on Johnson (1985)’s experimental plate bucking coefficient (kc). However, our close examination revealed that most of I-beam specimens tested by Johnson to derive kc had section configuration of slender web and noncompact flange, indicating the inappropriateness of the test database itself and probable underestimation of web restraint effect in the AISC codification. In this paper, the effect of web slenderness on the elastic flange local buckling is analytically investigated using the mixed variational approach, and more accurate but still practical formula is proposed.
•The test data for elastic FLB strength of I beams in the AISC Specification found to be inconsistent.•More rational and theoretical measure for web restraint effect on elastic FLB of I beams proposed.•More accurate but still practical formula for elastic FLB proposed using variational approach.</description><subject>Buckling</subject><subject>Constraints</subject><subject>Flange local buckling</subject><subject>Flanges</subject><subject>H beams</subject><subject>I beams</subject><subject>I-shaped beams</subject><subject>Mathematical analysis</subject><subject>Mixed variational principle</subject><subject>Plates (structural members)</subject><subject>Slender flange</subject><subject>Web slenderness</subject><issn>0263-8231</issn><issn>1879-3223</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp9kD9PwzAQxS0EEqXwAdg8siT4T-w4YkJVgUqVGIDZcpxzcUnjYqcgvj2Oysx0J93v3d17CF1TUlJC5e22HL9TyXJbkqokhJ6gGVV1U3DG-CmaESZ5oRin5-gipW0GatpUM_Sy7E0avcWuN8MGcB-s6XF7sB-9HzY4OLwq0rvZQ4dbMLuEbRiS7yBOU3AO7DhB39DiCGmMxg_jJTpzpk9w9Vfn6O1h-bp4KtbPj6vF_bqwnJOxEM4oMI0whLeOCQmc0roWjLRUOMKoFE1FoK0oN1yBlG2juKvU9DoBKRSfo5vj3n0Mn4d8Xe98stBnJxAOSVPFRFVL3oiM0iNqY0gpgtP76Hcm_mhK9BSg3uocoJ4C1KTS-UjW3B01kD18eYg6WQ-Dhc7HbFt3wf-j_gUURneJ</recordid><startdate>201608</startdate><enddate>201608</enddate><creator>Han, Kyu-Hong</creator><creator>Lee, Cheol-Ho</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7TB</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>201608</creationdate><title>Elastic flange local buckling of I-shaped beams considering effect of web restraint</title><author>Han, Kyu-Hong ; Lee, Cheol-Ho</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c330t-5fa8ea95a03bf256e31177520b15f02165940eb413a38e66b983f4800170e6583</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Buckling</topic><topic>Constraints</topic><topic>Flange local buckling</topic><topic>Flanges</topic><topic>H beams</topic><topic>I beams</topic><topic>I-shaped beams</topic><topic>Mathematical analysis</topic><topic>Mixed variational principle</topic><topic>Plates (structural members)</topic><topic>Slender flange</topic><topic>Web slenderness</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Han, Kyu-Hong</creatorcontrib><creatorcontrib>Lee, Cheol-Ho</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering 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>Thin-walled structures</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Han, Kyu-Hong</au><au>Lee, Cheol-Ho</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Elastic flange local buckling of I-shaped beams considering effect of web restraint</atitle><jtitle>Thin-walled structures</jtitle><date>2016-08</date><risdate>2016</risdate><volume>105</volume><spage>101</spage><epage>111</epage><pages>101-111</pages><issn>0263-8231</issn><eissn>1879-3223</eissn><abstract>The 2010 AISC flexural strength of I-shaped beams with slender flange was proposed based on Johnson (1985)’s experimental plate bucking coefficient (kc). However, our close examination revealed that most of I-beam specimens tested by Johnson to derive kc had section configuration of slender web and noncompact flange, indicating the inappropriateness of the test database itself and probable underestimation of web restraint effect in the AISC codification. In this paper, the effect of web slenderness on the elastic flange local buckling is analytically investigated using the mixed variational approach, and more accurate but still practical formula is proposed.
•The test data for elastic FLB strength of I beams in the AISC Specification found to be inconsistent.•More rational and theoretical measure for web restraint effect on elastic FLB of I beams proposed.•More accurate but still practical formula for elastic FLB proposed using variational approach.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.tws.2016.04.001</doi><tpages>11</tpages></addata></record> |
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| ispartof | Thin-walled structures, 2016-08, Vol.105, p.101-111 |
| issn | 0263-8231 1879-3223 |
| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Buckling Constraints Flange local buckling Flanges H beams I beams I-shaped beams Mathematical analysis Mixed variational principle Plates (structural members) Slender flange Web slenderness |
| title | Elastic flange local buckling of I-shaped beams considering effect of web restraint |
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