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http://dx.doi.org/10.5345/JKIBC.2015.15.3.273

An Experimental Study on the Ensuring the Fire Resistance Performance of Non-Refractory Coating CFT  

Lee, Ji-Hwan (Department of Architectural Engineering, Cheong-Ju University)
Han, Min-Cheol (Department of Architectural Engineering, Cheong-Ju University)
Publication Information
Journal of the Korea Institute of Building Construction / v.15, no.3, 2015 , pp. 273-280 More about this Journal
Abstract
In this study, tests were carried out to find out a method to ensure the fire resistance performance of high-performance non-refractory coating CFT columns. For the high performance concrete fabrication with 100MPa, blast furnace slag(BS) and steel and nylon fibers were used. It was found that the partial replacement with BS improved the fire resistance performance of the concrete. Based on the results of lab tests, the large fire test was conducted. For this test, the CFTs with the size of ${\phi}500{\times}4,200mm$ and the reinforcement of SS 400 steel were prepared and they were subjected to a loading condition. It was found that as the level of load increased, the level of fire resistance decreased. For example, In with the loading condition of 2000kN the CFT could resist the fire for over 240 minutes, whereas, with the loading condition of 3,000kN and 4000kN applying to equivalent CFTs, the resisting time against fire were 184 minutes, and 120 minutes, respectively.
Keywords
high strength concrete; fire resistance test under load; concrete filled steel tube; fire resistance; blast furnace slag;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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