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http://dx.doi.org/10.7781/kjoss.2017.29.4.291

Experimental Study of High-strength Steel CHS X-joints Under Axial Compression  

Lee, Cheol Ho (Dept. of Architecture & Architectural Engineering, Seoul National University)
Kim, Seon Hu (Dept. of Architecture & Architectural Engineering, Seoul National University)
Chung, Dong Hyun (Dongyang Structural Engineers Group)
Kim, Dae Kyung (Dept. of Architecture & Architectural Engineering, Seoul National University)
Kim, Jin Won (POSCO Steel Solution Marketing Department)
Publication Information
Journal of Korean Society of Steel Construction / v.29, no.4, 2017 , pp. 291-301 More about this Journal
Abstract
Most of current representative design standards worldwide forbid or impose restrictions on the use of high-strength steels for hollow tubular structures. The mechanical background of these limitations appears unclear and unduly conservative, and their validity needs to be re-evaluated. In this study, a total of 9 CHS(Circular Hollow Section) X-joints were tested under axial compression and analyzed to examine if the high-strength steel restrictions specified by current design standards could be relaxed. All the high-strength steel CHS X-joints tested showed satisfactory performance compared to ordinary steel joints in terms of serviceability, ultimate strength, and ductility, although the yield strength of steel was even as high as 800MPa.
Keywords
High strength steel; CHS(circular hollow section); X-joint; Experimental; Cold-formed;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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