Behaviour of the bottom and top flange plates in the Sliding Hinge Joint
The Sliding Hinge Joint is a low damage beam-column connection used in steel moment resisting frames. It dissipates energy through sliding in Asymmetric Friction Connections (AFCs) in the bottom web and bottom flange bolt groups. The AFC confines earthquake induced damage to bolts that can be retightened or replaced following a major earthquake. The other joint components sustain negligible damage and would be kept in service and may thus be subjected to further earthquake shaking during the lifetime of the building. The bottom and top flange plates are also subject to inelastic action about their minor axis under joint rotation. This study evaluates the behaviour of the bottom and top flange plates to determine the weld and plate susceptibility to low-cycle fatigue failure. The basic flange plate deformation was approximated by an arc, with the effects of shear slip considered to obtain estimates of likely strain demands. It was shown that even in the most critical case the fatigue life is more than six times the demand expected in a design level earthquake. As a result, it is concluded that properly designed, detailed and connected flange plates are not prone to low-cycle fatigue failure.
Clifton, G.C. (2005). “Semi-rigid joints for moment-resisting steel framed seismic-resisting systems.” Department of Civil and Environmental Engineering, University of Auckland, Auckland.
MacRae, G.A., Clifton, C., MacKinven, H., Mago, N., Butterworth, J. and Pampanin, S. (2010)."The Sliding Hinge Joint moment connection". Bulletin of the New Zealand Society for Earthquake Engineering 43 (3): 202- 212. DOI: https://doi.org/10.5459/bnzsee.43.3.202-212
Khoo, H.H., Clifton, C., Butterworth, J.W., MacRae, G.A. and Ferguson, G. (2012). "Influence of steel shim hardness on the Sliding Hinge Joint performance". Journal of Constructional Steel Research 72 (0): 119- 129. DOI: https://doi.org/10.1016/j.jcsr.2011.11.009
Bisalloy Steels (2008). Bisplate Technical Guide. Unanderra, Australia.
Chanchi-Golondrino, J., MacRae, G.A., Chase, J.G., Rodgers, G.W., Mora-Munoz, A. and Clifton, C. (2012). “Design considerations for braced frames with asymmetrical friction connections – AFC”. 7th STESSA Conference on the Behaviour of Steel Structures in Seismic Areas. Santiago, Chile.
Khan, M.J. and Clifton, C. (2011). "Proposed development of a damage resisting eccentrically braced frame with rotational active links". Bulletin of the New Zealand Society for Earthquake Engineering 44 (2): 99- 107. DOI: https://doi.org/10.5459/bnzsee.44.2.99-107
Khoo, H.H., Clifton, C., Butterworth, J.W. and MacRae, G.A. (2012). “Experimental studies of the self-centering Sliding Hinge Joint”. 2012 NZSEE Conference. Christchurch, New Zealand.
Khoo, H.H., Clifton, C., Butterworth, J.W., MacRae, G.A., Gledhill, S. and Sidwell, G. (2012). “Development of the self-centering Sliding Hinge Joint with friction ring springs”. Journal of Constructional Steel Research 78 (2012): 201-211. DOI: https://doi.org/10.1016/j.jcsr.2012.07.006
Steel Construction New Zealand (2007). Steel Connect SCNZ: Parts 1 and 2. Auckland, New Zealand.
Standards New Zealand (2009). NZS 3404 - Steel Structures Standard. Wellington, New Zealand.
Standards New Zealand (2011). AS/NZS 1554.1 – Structural Steel Welding Part 1: Welding of steel structures. Wellington, New Zealand.
MacKinven, H. (2006). “Sliding Hinge Joint for steel moment frames experimental testing”. ENCI 493 Project Report. Department of Civil Engineering, University of Canterbury, Christchurch.
Standards New Zealand (2004). NZS 1170.5 – Structural Design Actions. Earthquake Actions. Wellington, New Zealand.
SAC Joint Venture (2000). “Loading histories for seismic performance testing of SMRF Components and Assemblies”. Rep. No. SAC/BD-00/10. Stanford University, California.
Eisenbeis, M., Scholz, W., Clifton, C. and Bayley, C. (2000). “Development of small scale test rig to trial the performance of welded beam to column connections under seismic loading”. R8-18. Heavy Engineering Research Association. Auckland.
Mago, N., Seal, C.K., Scholz, W., Clifton, C. and Bauer, S. (2001). “Cyclic performance of welded T joints”. Heavy Engineering Research Association. Auckland, New Zealand.
Seal, C.K., Hodgson, M.A., Clifton G.C. and Ferguson W.G. (2009). "A novel method for predicting damage accumulation in seismically deformed steel". Journal of Constructional Steel Research 65 (12): 2157-2166. DOI: https://doi.org/10.1016/j.jcsr.2009.06.014
Manson, S.S. (1953). “Behaviour of materials under conditions of thermal stress”. Heat Transfer Symposium, University of Michigan Engineering Research Institute, Ann Arbor, Michigan.
Coffin, L.F.J. (1954). "A study of the effects of cyclic thermal stresses on a ductile metal". Trans. ASME 76: 931-950.
Kasai, K. and Xu, Y. (2003). "Cyclic behaviour and low-cycle fatigue of semi-rigid connections". 5th STESSA Conference on the Behaviour of Steel Structures in Seismic Areas. Naples, Italy.
Copyright (c) 2013 Hsen-Han Khoo, Chris Seal, Charles Clifton, John Butterworth, Gregory A. MacRae
This work is licensed under a Creative Commons Attribution 4.0 International License.