Abstract
This study was conducted to propose analytical models that can predict the initial stiffness and plastic moment capacity of an unstiffened top and seat angle connection. These analytical models were developed by considering the moment-rotation curves, plastic hinge lines, and failure modes of an unstiffened top and seat angle connection. In the development of these analytical models, the effects of the prying action and the moment-shear interaction of a top angle were also considered. Application feasibility of these analytical models was verified by comparing these models’ results with those obtained from using the Chen-Kishi and Faella models, as well as the Nethercot experimental test data. Four tests were conducted to obtain the moment-rotation curves and failure modes of an unstiffened top and seat angle connection under shear.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Altman, W. G., Azizinamini, A., and Bradburn, J. H. (1982). “Moment-rotation characteristics of semi-rigid steel beam-to-column connections.” The Civil Eng. Dept., Univ. of South Carolina, Columbia, Sc.
American Institute of Steel Construction (AISC) (2005). Manual of steel construction (13th ed), Chicago.
Azizinamini, A., Bradburn, J. H., and Radziminski, J. B. (1985). “Static and cyclic behavior of semi-rigid steel beam-column connections.” Structural Res. Studies, Dept. of Civil Eng., Univ. of South Carolina, Columbia, Sc.
Astaneh, A. (1985). “Procedure for the design and analysis of hanger-type connections.” Engng J AISC, 22, pp. 63–66.
Brockenbrough, R. L. (1998). “Fabrication guidelines for cold bending.” Pittsburgh, PA: Brocken Brough and Associates.
Chen, W. F. (1987). Joint flexibility in steel frames. Elsevier Applied Science.
Chen, W. F. and Kishi, N. (1989). “Moment-rotation relation of top and seat angle connections.” Moscow, USSR: Proc. of the Int. Colloquium on Bolted and Special Connections, May pp. 15–20.
Chen, W. F. and Lui, E. M. (1991). Stability design of steel frames. CRC Press.
Davison, J. B., Kirby, P. A., and Nethercot, D. A. (1987). “Rotational Stiffness Characteristics of Steel Beam-to-Column Connections.” Joint Flexibility in Steel Frames, Chen, W. F. (ed.), Elsevier Applied Science, pp. 17–54.
Faella, C., Piluso, V., and Rizzano, G. (1996). “Prediction of the flexural resistance of bolted connections with angles.” IABSE Colloquium on Semi-Rigid Structural Connections, pp. 25–27.
Faella, C., Piluso, V., and Rizzano, G. (1998). “Experimental analysis of bolted connections: Snug vs. preloaded bolts.” J Struct Engng, ASCE, 124, pp. 765–774.
Faella, C., Piluso, V., and Rizzano, G. (2000). Structural steel semi-rigid connections: Theory, design, and software. CRC Press.
Hechtman, R. A., and Johnston, B. G. (1947). “Riveted semi-rigid beam-to-column building connections.” Bethlehem, PA: Progress Report No. 1, AISC research at Lehigh University.
Jaspart, J. P. (1991). Etude de la Semi-rigidite des Noeuds Poutre-Colonne et son Influence sur la Resistance et la Stabilite des Ossatures en Acier. Ph.D. thesis, University of Liege, Belgium.
Jaspart, J. P. and Maquoi, R. (1991). “Plastic capacity of end-plate and flange cleated connections: Prediction and design rules.” Pittsburgh, USA: Second International Workshop on Connections in Steel Structures.
Jaspart, J. P., Steenhuis, M., and Weinand, K. (1995). “The stiffness model of Revised Annex J of Eurocode 3.” Trento, Italy: Third International Workshop on Connection in Steel Structures.
Kishi, N. and Chen, W. F. (1990). “Moment-rotation relations of semi-rigid connections with angles.” J Struct Engng, ASCE, 116, pp. 1813–1834.
Lorenz, R. F., Kato, B., and Chen, W. F. (1992). Semi-rigid connections in steel frames. CTBUH: McGraw-Hill.
Richard, R. M., & Abbott, B. J. (1975). “Versatile elastic-plastic stress-strain formula.” J Eng Mech Div, ASCE, 101(EM4), pp. 511–515.
Richard, R. M., Hsia, W. K., and Chmielowiec, M. (1988). “Derived moment-rotation curves for double-framing angles.” Comput & Struct, Elsevier Science Ltd., 3, pp. 485–494.
Roeder, C. W. and Dailey, R. H. (1989). “The results of experiments on seated beam connections.” Eng. J, AISC, 26, 3, (3rd qtr.), pp. 90–95.
Salmon, C. G. and Johnston, J. E. (1998). Steel structures: Design and behavior (4th ed). Harper Collins.
Thornton, W. A. (1985). “Prying action: A general treatment.” Engng J, AISC, 22, pp. 67–75.
Thornton, W. A. (1992). “Strength and serviceability of hanger connections.” Engng J, AISC, 29, pp. 145–149.
Thornton, W. A. (1996). “A rational approach to the design of tee shear connections.” Engng J, AISC, 33, pp. 34–37.
Thornton, W. A. (1997). “Strength and ductility requirements for simple shear connections with shear and axial load.” Proceedings of the National Steel Construction Conference, AISC, 38, pp. 1–17.
Yang, J. G. and Lee, G. Y. (2005). “Design specifications for low-rise steel frames with double-angle connections.” Report No. KRF-2005-202-D00530, Korea Research Foundation.
Yang, J. G. and Jeon, S. S. (2008). “Analytical models for the initial stiffness and plastic tensile-load capacity of a double-angle connection.” International Journal of Steel Structures, 8(3), pp. 237–248.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Yang, JG., Jeon, SS. Analytical models for the initial stiffness and plastic moment capacity of an unstiffened top and seat angle connection under a shear load. Int J Steel Struct 9, 195–205 (2009). https://doi.org/10.1007/BF03249494
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF03249494