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http://dx.doi.org/10.12652/Ksce.2015.35.1.0009

Interface Behavior of Concrete Infilled Steel Tube Subjected to Flexure  

Lee, Ta (Ssangyong E&C)
Jeong, Jong-Hyun (Konkuk University)
Kim, Hyeng-Ju (Konkuk University)
Lee, Yong-Hak (Konkuk University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.35, no.1, 2015 , pp. 9-17 More about this Journal
Abstract
Interface behavior of concrete-infilled steel tube (CFT) was investigated based on the experimental observations and numerical analyses. Laboratory tests were performed for twelve CFTs that consisted of two different cases of diameters where each diameter case was composed of three different cases of shear span length. Thereby, diameter and shear span parameters were considered to prove the question of whether there exists interface slip between steel tube and infilled-concrete. Confining effect of steel tube to infilled concrete was also investigated by measuring lateral strain as well as longitudinal strain. Based on the study, it was concluded that confining effect of steel tube to infilled-concrete is not influential under flexural loading and therefore, the sectional analysis is an effective way to estimate the flexural strength of CFT.
Keywords
Steel-concrete interface; Concrete-infilled steel tube; Flexural test; Finite element analysis;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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