• Title/Summary/Keyword: Concrete filled stel tubular column

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Punching Shear Strength and Behavior of CFT Column to RC Flat Plate connections (CFT기둥-RC 무량판 접합부의 펀칭전단강도 및 거동)

  • Lee, Cheol Ho;Kim, Jin Won
    • Journal of Korean Society of Steel Construction
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    • v.18 no.4
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    • pp.491-502
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    • 2006
  • This paper summarizes full-scale test results on CFT column-to- flat plate connections has gained wide acceptance subjected to gravity loading. CFT construction has gained wide acceptance in a relatively short time in domestic building construction practice due to its various structural and construction advantages. However, efficient details for CFT column to flat plate connections have not been proposed yet. Based on the strategies that maximize economical field construction, several connecting schemes were proposed and tested. Test results showed strength and connection stiffness exceeding those of R/C flat p late counterparts. A semi-analytical procedure is presented to model the behavior of CFT column-to-flat plate connections. The five parameters to model elastic to post-punching catenary action range are calibrated based on the limited test data of t to progressive collapse prevention design is also illustrated.