Experimental Study of a Self-Centering Beam–Column Connection with Bottom Flange Friction Device
Publication: Journal of Structural Engineering
Volume 135, Issue 5
Abstract
A new beam-to-column connection for earthquake-resistant moment-resisting frames is introduced. The connection has a beam bottom flange friction device (BFFD) and posttensioned (PT) high-strength steel strands running parallel to the beam. The BFFD provides energy dissipation to the connection and avoids interference with the floor slab. The PT strands produce self-centering connection behavior. The connection behavior requires minimal inelastic deformation of the connection components and the beams and columns, and requires no field welding. A series of seven large-scale tests were performed to investigate the effect of the BFFD friction force, connection details, and the loading history on the performance of the connection under cyclic loading. The test results indicate that the BFFD provides reliable energy dissipation, and that the connection remains damage-free under the design earthquake.
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Acknowledgments
This material is based on work supported by the National Science Foundation, Award No. CMS-0420974, in the George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) Research program, and Award No. CMS-0402490 NEES Consortium Operation. The research was conducted at the Real-Time Multi-Directional (RTMD) Testing Facility located in the ATLSS Center at Lehigh University. The RTMD facility is part of the George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES). Some financial support for the first writer was provided by Lehigh University. The findings, opinions, and conclusions expressed in the paper are those of the writers, and do not necessarily reflect the opinions of the sponsors.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 135 • Issue 5 • May 2009
Pages: 479 - 488
Copyright
© 2009 ASCE.
History
Received: Jan 9, 2008
Accepted: Nov 13, 2008
Published online: Feb 19, 2009
Published in print: May 2009
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