Version 1
: Received: 21 January 2022 / Approved: 24 January 2022 / Online: 24 January 2022 (10:50:29 CET)
Version 2
: Received: 24 February 2022 / Approved: 25 February 2022 / Online: 25 February 2022 (09:33:07 CET)
Fujii, K. Peak and Cumulative Response of Reinforced Concrete Frames with Steel Damper Columns under Seismic Sequences. Buildings2022, 12, 275.
Fujii, K. Peak and Cumulative Response of Reinforced Concrete Frames with Steel Damper Columns under Seismic Sequences. Buildings 2022, 12, 275.
Fujii, K. Peak and Cumulative Response of Reinforced Concrete Frames with Steel Damper Columns under Seismic Sequences. Buildings2022, 12, 275.
Fujii, K. Peak and Cumulative Response of Reinforced Concrete Frames with Steel Damper Columns under Seismic Sequences. Buildings 2022, 12, 275.
Abstract
The steel damper column is an energy-dissipating member that is suitable for reinforced concrete (RC) buildings, and those used for multistory housing in particular. However, the effectiveness of steel damper columns may be affected by the behavior of surrounding members, and this effect can be severe in the case of seismic sequences. This article investigates the nonlinear response of building models having an RC moment-resisting frame (MRF) with and without steel damper columns under seismic sequences. The applicability of the concept of the momentary energy input to the prediction of the peak response of RC MRFs with damper columns under seismic sequences is also investigated. The main findings of the study are summarized as follows. (1) The peak response of RC MRFs with damper columns subjected to sequential accelerations is similar to the peak response obtained considering only the mainshock, whereas the cumulative strain energy of RC MRFs accumulates more for sequential accelerations. (2) The steel damper column is effective in reducing the peak and cumulative responses of RC MRFs in the case of sequential seismic input. (3) The relation of the hysteretic dissipated energy during a half cycle of the structural response and the peak displacement of the first modal response can be properly evaluated using the simple model proposed in this study.
Keywords
reinforced-concrete moment-resisting frame; steel damper column; seismic sequence; peak response; cumulative response; cyclic degradation; passive control structure; momentary energy input
Subject
Engineering, Civil Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Received:
25 February 2022
Commenter:
Kenji Fujii
Commenter's Conflict of Interests:
Author
Comment:
Following the comments of reviewers, I have update my manuscripts.
1. Add some works in the references. 2. Add the explanations of "the definition of the momentary input energy" in Appendix. 3. Some typos are corrected.
Commenter: Kenji Fujii
Commenter's Conflict of Interests: Author
1. Add some works in the references.
2. Add the explanations of "the definition of the momentary input energy" in Appendix.
3. Some typos are corrected.