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http://dx.doi.org/10.7781/kjoss.2012.24.6.711

Structural Performance of High-Strength Concrete-Filled Steel Tube Steel Columns using Different Strength Steels  

Choi, In Rak (Steel Structure Research Div., Research Institute of Industrial Science & Technology)
Chung, Kyung Soo (Steel Structure Research Div., Research Institute of Industrial Science & Technology)
Kim, Jin Ho (Steel Structure Research Div., Research Institute of Industrial Science & Technology)
Hong, Geon Ho (Dept. of Architectural Engineering, Hoseo University)
Publication Information
Journal of Korean Society of Steel Construction / v.24, no.6, 2012 , pp. 711-723 More about this Journal
Abstract
Structural tests were performed to investigate the structural performance of concrete-filled steel tube column using different strength steels in their flange and web with high-strength steel HSA800 and mild steel SM490, respectively. The test parameters included the strength of column flange and infill concrete, and effect of concrete infill. Connection between different grade steels were welded using the electrode appropriate for mild steel and verified its performance. To evaluate the behavior of test specimens, eccentric loading tests were performed and the results were compared with the prediction by current design codes. Axial load and moment carrying capacity of test specimens increased with the yield strength of compression flange and weld fracture occurred after the specimen shows full strength. The prediction result for axial load-bending moment relationship and effective flexural stiffness gave good agreement with the test result.
Keywords
concrete filled; composite column; high-strength steel; eccentric loading; ultimate strength;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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