Investigation on the reasonable area of energy-dissipation bars for hybrid rocking columns
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Bibliographic Details
| Author(s): |
Zehua Bao
(Tongji University, Shanghai, CHINA)
Xueqi Zhong (Tongji University, Shanghai, China) Jianzhong Li (Tongji University, Shanghai, China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021 | ||||
| Published in: | IABSE Congress Ghent 2021 | ||||
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| Page(s): | 1407-1414 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/ghent.2021.1407 | ||||
| Abstract: |
In recent years, hybrid rocking columns have drawn more and more interests from researchers, due to their self-centering capacity. The energy-dissipation bars, which are generally applied at the rocking joints of hybrid rocking columns, could improve their energy dissipation capacities. Thus, the reasonable reinforcement ratio of energy-dissipation bars is much required for engineering applications. To determine the reasonable reinforcement ratio of energy-dissipation bars, a numerical investigation is conducted in this paper based on nonlinear time-history analysis. The analysis results show that a reasonable reinforcement ratio of energy-dissipation bars can effectively reduce seismic displacements of the hybrid rocking columns, without excessive residual deformations. Further, the reasonable reinforcement ratio of energy-dissipation bars for hybrid rocking columns with different periods is proposed in this paper. |
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| Keywords: |
reinforcement ratio hybrid rocking columns unbonded prestressed steel energy-dissipation bars equal displacement residual displacement
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| Copyright: | © 2021 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
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