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http://dx.doi.org/10.11112/jksmi.2014.18.5.009

Interface Behavior of Concrete Infilled Steel Tube Composite Beam  

Lee, Yong-Hak (건국대학교 토목공학과)
Lee, Ta (쌍용건설(주) 토목기술팀)
Jeong, Jong-Hyeon (건국대학교 토목공학과)
Kim, Hyeong-Ju (건국대학교 토목공학과)
Park, Kun-Tae (마이다스IT 해석기술개발팀)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.18, no.5, 2014 , pp. 9-18 More about this Journal
Abstract
Interface behavior and confining effects of concrete-infilled steel tube (CFT) composite beam were investigate based on the experimental observations and numerical analyses. For this purpose, laboratory four-points bending tests were performed for the two test specimens of 1,000mm long CFT composite beams. The test beams were made of ${\phi}110mm$ and 4.5mm thick steel tube and 10mm thick steel web and bottom flange. Therefore, concrete infilled in steel tube was in compression through the entire cross section due to the web and bottom flange. Two end section conditions, with end section cap and without end section cap, were considered in experiments to monitor the relative slip displacement at ends and induce confining effects at center. In numerical aspects, finite element analysis considering steel-concrete interface behavior was performed and compared to the experimental results.
Keywords
CFT conposite beam; Steel-concrete interface; Flexural beam test; Finite element analysis;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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