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Study of viscoelastic
and friction damper configurations in the seismic mitigation
of medium-rise structures
Julius Marko, David Thambiratnam and Nimal Perera |
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Vol. 1 (2006), No. 6, 1001–1039
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Discussion: 10.2140/jomms.2006.1.1497
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Abstract |
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This paper presents a comprehensive study of the seismic mitigation of medium rise frame-shear wall structures using embedded dampers. Two building structures with embedded viscoelastic and friction dampers in different configurations and placed in various locations throughout the structure are subjected to five different earthquake loadings. Finite element techniques are used to model the dampers and the structures and to obtain the dynamic responses. Influence of damper type and properties, configuration, and location are investigated using time history responses. Results for tip deflection and acceleration are evaluated for a number of cases and demonstrate the feasibility of the technique for seismic mitigation of these structures for a range of excitations, even when the dominant seismic frequencies match the natural frequency of the structure. Results also provide information which can be used for optimal damper placement for seismic mitigation. |
Keywords
dampers, multistory buildings, seismic mitigation, finite
element techniques
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Milestones
Received: 20 December 2005
Revised: 14 February 2006
Accepted: 16 March 2006
Published: 1 October 2006
Discussion: 1 December 2006
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Authors |
| Julius Marko | |
| School of Urban Development Queensland University of Technology GPO Box 2434, Brisbane 4001 Australia |
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| David Thambiratnam | |
| School of Urban Development Queensland University of Technology GPO Box 2434, Brisbane 4001 Australia |
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| Nimal Perera | |
| Robert Bird & Partners Warwick House 25 Buckingham Palace Road London SW1W 0PP United Kingdom |
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