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Seismic Design of Friction-Damped Precast Concrete Frame Structures

Morgen, Brian G. / Kurama, Yahya C.

This paper is on the seismic design of unbonded post-tensioned precast concrete frame structures that use friction dampers for supplemental energy dissipation. A procedure is described to determine the friction damper slip force and the area of post-tensioning steel needed in a frame to satisfy prescribed lateral strength and energy dissipation requirements. 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 multi-story frame structures under lateral loads are conducted to evaluate the design procedure and to identify areas where improvement may be needed. The analytical results show that friction-damped precast concrete frames can achieve significant energy dissipation levels while maintaining a large level of self-centering capability due to the post-tensioning force.

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Seismic Design of Friction-Damped Precast Concrete Frame Structures

Morgen, Brian G. / Kurama, Yahya C.

This paper is on the seismic design of unbonded post-tensioned precast concrete frame structures that use friction dampers for supplemental energy dissipation. A procedure is described to determine the friction damper slip force and the area of post-tensioning steel needed in a frame to satisfy prescribed lateral strength and energy dissipation requirements. 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 multi-story frame structures under lateral loads are conducted to evaluate the design procedure and to identify areas where improvement may be needed. The analytical results show that friction-damped precast concrete frames can achieve significant energy dissipation levels while maintaining a large level of self-centering capability due to the post-tensioning force.

Seismic Design of Friction-Damped Precast Concrete Frame Structures

Morgen, Brian G. / Kurama, Yahya C.

This paper is on the seismic design of unbonded post-tensioned precast concrete frame structures that use friction dampers for supplemental energy dissipation. A procedure is described to determine the friction damper slip force and the area of post-tensioning steel needed in a frame to satisfy prescribed lateral strength and energy dissipation requirements. 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 multi-story frame structures under lateral loads are conducted to evaluate the design procedure and to identify areas where improvement may be needed. The analytical results show that friction-damped precast concrete frames can achieve significant energy dissipation levels while maintaining a large level of self-centering capability due to the post-tensioning force.

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Title:

Seismic Design of Friction-Damped Precast Concrete Frame Structures

Contributors:

Morgen, Brian G. (author) / Kurama, Yahya C. (author)

Conference:

Structures Congress 2005 ; 2005 ; New York, New York, United States

Published in:

Structures Congress 2005 ; 1-12

Publication date:

2005-04-18

ISBN:

DOI:

https://doi.org/10.1061/40753(171)199

Type of media:

Conference paper

Type of material:

Electronic Resource

Language:

English

Keywords:

Seismic design , Construction , Professional practice , Precast concrete , Energy efficiency , Damping , Standards and codes , Frames , Constructability , Post tensioning , Bridges , Forensic engineering , Design , Building design , Friction , Engineering education , Concrete structures

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