Seismic Design of Friction-Damped Precast Concrete Frame Structures
Publication: Journal of Structural Engineering
Volume 133, Issue 11
Abstract
This paper presents the seismic design of unbonded posttensioned precast concrete frame structures that use friction dampers for supplemental energy dissipation. A procedure is described to determine the friction damper slip forces and posttensioning steel areas needed to satisfy prescribed design lateral strength and energy dissipation requirements for a trial frame with given geometry, beam and column member dimensions, and selected damper distribution. The proposed design procedure assumes that the lateral strength requirements for the frame have been obtained from a linear elastic analysis of the structure under equivalent lateral forces. Nonlinear reversed-cyclic analyses of friction-damped precast concrete beam-column subassemblies and multistory frame structures under lateral loads are conducted to critically evaluate the design procedure and to identify areas where improvement may be needed. The analytical results show that friction-damped precast frames can be designed to achieve significant energy dissipation levels while maintaining a large level of self-centering capability due to the posttensioning force.
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Acknowledgments
This research was funded by the National Science Foundation (NSF) under Grant No. NSFCMS 98-74872 as a part of the CAREER Program. The support of the NSF Program Directors Dr. S. C. Liu and Dr. S. L. McCabe is gratefully acknowledged. In addition, the writers recognize the technical and financial support provided by industry partnerships with: R. W. Monroe and D. R. Poweleit of the Steel Founders’ Society of America; R. Reddy of Southwest Steel Casting Company of Longview, Texas; C. E. Hilgeman and M. A. Fusani of Concrete Technology, Inc. of Springboro, Ohio; and K. B. Allen and D. Martin of Dywidag-Systems International of Bolingbrook, Ill. The opinions, findings, and conclusions expressed in this paper are those of the writers and do not necessarily reflect the views of the NSF or the individuals and organizations acknowledged above.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 133 • Issue 11 • November 2007
Pages: 1501 - 1511
Copyright
© 2007 ASCE.
History
Received: Jan 19, 2005
Accepted: Sep 18, 2006
Published online: Nov 1, 2007
Published in print: Nov 2007
Notes
Note. Associate Editor: Michael D. Symans
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