Seismic Design of Friction-Damped Precast Concrete Frame Structures
Publication: Structures Congress 2005: Metropolis and Beyond
Abstract
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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Copyright
© 2005 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
ASCE Technical Topics:
- Concrete
- Concrete frames
- Concrete structures
- Continuum mechanics
- Damping
- Design (by type)
- Dynamics (solid mechanics)
- Earthquake engineering
- Engineering fundamentals
- Engineering materials (by type)
- Engineering mechanics
- Frames
- Geotechnical engineering
- Material mechanics
- Material properties
- Materials engineering
- Mechanical properties
- Precast concrete
- Seismic design
- Seismic tests
- Solid mechanics
- Structural design
- Structural dynamics
- Structural engineering
- Structural members
- Structural systems
- Structures (by type)
- Tension
- Tests (by type)
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