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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 4/5
Edited by: B.H.V. Topping
Paper VII.2

Derived Moment Rotation Curves for Double Framing Angles

R.M. Richard, W-K. Hsai and M. Chmielowiec

Department of Civil Engineering and Engineering Mechanics, The University of Arizona, Tucson, USA

Full Bibliographic Reference for this paper
R.M. Richard, W-K. Hsai, M. Chmielowiec, "Derived Moment Rotation Curves for Double Framing Angles", in B.H.V. Topping, (Editor), "Proceedings of the Third International Conference on Civil and Structural Engineering Computing", Civil-Comp Press, Edinburgh, UK, pp 171-178, 1987. doi:10.4203/ccp.4.7.2
Tension and compression force deformation data obtained from laboratory tests of angle segments are used to generate moment rotation curves for bolted double framing angle connections. These force deformation and moment rotation curves are analytically described by a four parameter formula which provides the basis for the analytical connection model. This connection model consists of a rigid bar and nonlinear springs representing the angle segments in either tension or compression. Design curves giving the four parameters of the moment rotation curves are generated. These parameters are primarily a function of the angle thickness, gage length of the angle legs in flexure, and the number of bolts in the connection. Comparisons of these derived moment rotation curves are made with published results of full scale tests.

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