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An Experimental Study on the Behavior of Connections of Thin-Walled Cold-Formed Steel Section Frames  

Kwon, Young Bong (영남대학교 토목공학과)
Cho, Jong Su (영남대학교 토목공학과)
Song, Jun Yeup (영남대학교 토목공학과)
Kim, Gap Deuk (RIST강구조연구소 경량구조연구팀)
Publication Information
Journal of Korean Society of Steel Construction / v.15, no.3, 2003 , pp. 281-290 More about this Journal
Abstract
A series of connection tests of portal frames which were composed of cold-formed steel studs and rafters was carried out to study the moment-rotation relation, the rotational rigidity, and the yield and the ultimate moment of the connections. The main factors of the tests were the thickness, the shape of the connecting members which were made of mild steel, and the torsional restraints of the test specimens. The test results were compared with those obtained through the non-linear analysis, for verification. The secant stiffness estimated from the experimental moment-rotation curve was proposed for the rotational rigidity of semi-rigid connections, and its validity was verified in the structural frame analysis.
Keywords
Cold-Formed Steel Sections; Portal Frames; Connections; Moment-Rotation Relation; Connecting Members; Semi-Rigid; Torsional Restraint;
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