Experimental Study on Beam-to-Column Connections of Steel Frame Structures with Steel Slit Dampers
Publication: Journal of Performance of Constructed Facilities
Volume 29, Issue 2
Abstract
After the Northridge and Kobe earthquakes important experimental programs on beam-to-column connections were developed because of brittle fractures at welded beam-to-column connections. A number of studies are being carried out on a variety of materials and systems that dissipate the seismic loading effects in order to improve the seismic performance of steel frames. In the research reported in this paper, a slit steel damper system was developed to prevent the damage formation of standard columns and beams by dissipating lateral loads at the beam-to-column connections of steel frames. Therefore, the columns and beams of steel frames will not be damaged after a heavy earthquake, and the structures might be put into the service again simply by replacing the dampers at the connection sites. The seismic performance of the studied connection was verified through cyclic tests of two full-scale steel frames that had slit dampers and of one specimen that had a conventional extended end-plate connection. Test results indicated that the proposed connection showed a good hysteretic behavior, a good energy dissipation capacity, and good rigidity. However, plastic deformation is limited to the slit dampers, while the inelastic behavior of the beams and columns is prevented.
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Acknowledgments
This paper was supported by Scientific Research Projects Office of Selcuk University in the scope of No. 10101008 project and scientific and technological research council of Turkey (TUBITAK) 110M022. The experimental data used for the research reported in this paper was provided from a part of the Ph.D. thesis titled as Seismic Damper Using on Beam to Column Connections of Steel Frames, in Turkish.
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Information & Authors
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Published In
Journal of Performance of Constructed Facilities
Volume 29 • Issue 2 • April 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Mar 29, 2013
Accepted: Dec 3, 2013
Published online: Dec 5, 2013
Discussion open until: Jan 1, 2015
Published in print: Apr 1, 2015
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