Braced Frame Symmetrical and Asymmetrical Friction Connection Performance

Abstract:

This paper describes quasi-static testing of Asymmetrical Friction Connection (AFC) and Symmetrical Friction Connections (SFC) in steel braces. It is shown that stable energy dissipation mechanisms have been achieved in braces using Bisalloy 500 shims on the sliding surface. When incorporated into a moment frame, the braces and the moment resisting frames underwent large displacements without significant frame yielding. The effective coefficient of friction is shown to be dependent on prying.

• Periodical: Key Engineering Materials (Volume 763)
• Pages: 216-223
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.763.216
• Online since: February 2018
• Authors: Robin Xie, Jose Chanchi Golondrino*, Gregory A. MacRae, George Charles Clifton
• Keywords: Energy Dissipation, Friction Connections, High Tensile Bolts, Low Damage Structures, Wear Resisting Shims

References

[1] A. S. Pall, C. Marsh, Response of Friction Damped Braced Frames, Journal of the Structural Division 108 (6) (1982) 1313-1323.

DOI: 10.1061/jsdeag.0005968

[2] G. C. Clifton, Semi-Rigid Joints for Moments Resisting Steel Framed Seismic Resisting Systems, Published PhD Thesis, Department of Civil and Environmental Engineering. University of Auckland – New Zealand, (2005).

[3] A. Filiatrault, S. Cherry, Performance Evaluation of Friction Damped Braced Steel Frames Under Simulated Earthquake Loads, Earthquake Spectra, 3 (1) (1987) 57-76.

DOI: 10.1193/1.1585419

[4] T. F. FizGerald, T. Anagnos, M. Goodson, T. Zsutty, Slotted Bolted Connections in Seismic Design for Concentrically Braced Connections, Earthquake Spectra, 5 (2) (1989) 383-391.

DOI: 10.1193/1.1585528

[5] R. Tremblay, Seismic Behaviour and Design of Friction Concentrically Braced Frames for Steel Buildings, Unpublished PhD Thesis, Department of Civil and Environmental Engineering. University of British Columbia, (1993).

[6] J. W. Butterworth, Seismic Damage Limitation in Steel Frames Using Friction Energy Dissipators, Proc. of the 6th International Conference on Steel and Space Structures. Singapore, September 1-2, (1999).

[7] G. A. MacRae, A New Look at Some Earthquake Engineering Concepts, M.J. Nigel Priestley Symposium Proceedings, IUSS Press, (2008).

[8] J. C. Chanchí, G. A. MacRae, J. G. Chase, G. W. Rodgers, G. C. Clifton, A. Munoz, Design Considerations for Braced Frames with Asymmetrical Friction Connections (AFC), Proc. of the International Conference STESSA 2012 Behaviour of Steel Structures in Seismic Areas, Santiago de Chile, (2012).

DOI: 10.1201/b11396-46

[9] J. C. Chanchí, R. M. Xie, G. A. MacRae, J. G. Chase, G. W. Rodgers, G. C. Clifton, Low Damage Braces Using Asymmetrical Friction Connections (AFC), New Zealand Society for Earthquake Engineering Annual Conference, Auckland, April, (2014).

[10] J. C. Chanchí, G. A. MacRae, J. G. Chase, G. W. Rodgers, G. C. Clifton, Behaviour of Asymmetrical Friction Connections Using Different Shim Materials, NZSEE Annual Conference. Christchurch, New Zealand, (2012).

[11] J. C. Chanchí, G. A. MacRae, J. G. Chase, A. Scott, G. W. Rodgers, G. C. Clifton, Recent Research on Two Low Damage Dampers Applicable to Steel Framing Systems, Steel Innovations Conference, Christchurch, New Zealand, (2013).

[12] C. E. Grigorian, E. P. Popov, Experimental and Analytical Studies of Steel Connections and Energy Dissipaters, Report UCB/EERC-95/13, Engineering Research Centre, San Francisco, (1994).

[13] J. C. Chanchí, G. A. MacRae, J. G. Chase, G. W. Rodgers, G. C. Clifton, Clamping force effects on the behaviour of asymmetrical friction connections (AFC), Proc. of the 15th World Congress on Earthquake Engineering (15WCEE), Lisbon, 24-28 September (2012).

[14] R. M. Xie, J. C. Chanchí, G. A. MacRae, J. G. Chase, G. W. Rodgers, G. C. Clifton, Hysteretic Behaviour of a Frame Using a Brace Equipped with an Asymmetrical Friction Connection, Steel Innovations Conference, Auckland, New Zealand, (2015).

DOI: 10.3850/978-981-07-7137-9_194