The cyclic yield response of a steel star plate cruciform joint
Abstract
This paper is a summary of an investigation into the cyclic response of a steel cruciform joint. A star plate beam to column joint identical to one of those forming the frame of the pier structure at Auckland International Airport was tested at the University of Auckland, School of Engineering. In this paper both the preparations undertaken and the subsequent experimental programme are described. The results are analysed and the observed behaviour is discussed. Comparisons are made with recently proposed design criteria for steel beam to column connections, as well as with formulae for predicting the load-deflection curves. Conclusions are drawn on the suitability of these theories for response prediction of star plate geometry joints. Additionally the energy absorption capabilities of the joint are compared with results from earlier American research.
References
Hanson, N. W. and Conner, H. W., "Seismic Resistance of Reinforced Concrete Beam Column Joints", Proc, ASCE, Vol. 93, No ST5, October, 1967, pp 533-560.
Shepherd, R. and Spring,K.C., "Racking Load Tests on a Steel Beam Column Joint", - to be published in New Zealand Engineering.
Kato, B., "A Design Criteria of Beam- to-Column Joint Panels", Bulletin of the New Zealand National Society for Earthquake Engineering, Vol. 7, No. 1, March, 1974.
Kaldjian, Mouses J., "Moment - Curvature of Beams as Ramberg-Osgood Functions", Proc. ASCE, Vol. 93, No ST5, October, 1967, pp 53-65.
Pinkney, R. B., "Cyclic Plastic Analysis of Structural Steel Joints", Report No. EERC 73-15, University of California, Berkley, August 1973.
Popov, E. P. and Pinkney, R.B., "Cyclic Yield Reversal in Steel Building Connections", Proc ASCE, Vol. 95, No. ST3, March, 1969.
Morrow, Jo Dean, "Cyclic Plastic Strain Energy and Fatigue of Metals", Internal Friction, Damping and Cyclic Plasticity, STP-378, ASTM, 1965, pp 45-84.
Kato, B., Fijita, F. and Okano, K. "Manufacture and Structural Characteristics of Universal Box Members", to be published in the Bulletin of the New Zealand National Society for Earthquake Engineering.
Baker, J. F., Home, M. R. and Heyman, J., "The Steel Skeleton", Cambridge University Press, 1956, Vol. 2.
Jez-Gala, Carmen, "Residual Stresses in Rolled I-sections", Proc. Instn Civ. Engrs., Vol. 23, November 1962, p. 361.
Massonett, C. E. and Save, M. A., "Plastic Analysis and Design" – Blainsdell Publishing Company, New York 1965.
Fielding, D. J. and Chen, W. F., "Steel Frame Analysis and Connection Shear Deformation", Proc. ASCE, Vol. 99, No ST1, January 1973, pp 1-18.
Fielding, D. L. and Huang, J. S., "Shear in Steel Beam-to-Column Connections", Supplement to the Welding Journal, July 1971, pp 313s - 326s.
Sherbourne, A. N., "New Developments in Steel Beam-to-Column Connections".
