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Seismic performance of controlled spine frames with energy-dissipating members.
- Source :
-
Journal of Constructional Steel Research . Nov2015, Vol. 114, p51-65. 15p. - Publication Year :
- 2015
-
Abstract
- Recently, various controlled rocking systems have been proposed in seismic design to prevent damage concentration and to achieve self-centering against a wide range of input ground motion intensities. However, several obstacles must be overcome before these systems can be applied to actual buildings; for example, the requirement for large, self-centering post-tensioned strands and special treatment at uplift column bases must be addressed. This paper proposes a non-uplifting spine frame system with energy-dissipating members without post-tensioned strands, its self-centering function is achieved by envelope elastic-moment frames. The system is applied to an actual building constructed in Japan. Conventional shear damper and uplifting rocking systems with post-tensioned strands developed in prior studies are also applied to the same building structures, and the performances of the three systems, including damage distribution, energy dissipation, self-centering, robustness against severe earthquakes, and irregular stiffness, are compared and discussed through numerical simulations based on practical design criteria. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0143974X
- Volume :
- 114
- Database :
- Academic Search Index
- Journal :
- Journal of Constructional Steel Research
- Publication Type :
- Academic Journal
- Accession number :
- 110215976
- Full Text :
- https://doi.org/10.1016/j.jcsr.2015.07.002