Moment Rotation Curves for Double Framing Angles

by Ralph M. Richard, Univ of Arizona, Tucson, AZ, USA,
Wei-Kung Hsia, Univ of Arizona, Tucson, AZ, USA,
Mark Chmielowiec, Univ of Arizona, Tucson, AZ, USA,

Document Type: Proceeding Paper

Part of: Materials and Member Behavior


Moment-rotation curves for bolted framed steel connections are derived from force-deflection data obtained from laboratory tension and compression tests of angle segments. These derived curves for web framing angles are found to be consistent with published results of full-scale tests. The laboratory force-deflection test results are analytically described by a four parameter formula. These parameters are dependent upon the angle thickness, gage length of the legs in flexure and the connection plate thickness. A simple analytical connection model comprising a rigid bar and nonlinear springs which simulate the angle segments is then used to generate the moment-rotation curves for typical framing connections.

Subject Headings: Steel frames | Moment (mechanics) | Rotation | Curvature | Frames | Steel structures | Compression tests | Parameters (statistics)

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