Bao, Chao and Han, Mengfan and Bai, Pengcheng and Fan, Qi and Wang, Weiqiang and Ma, Xiaotong and Lv, Jianning and Lim, Kar Sing (2025) A novel horizontal universal viscous damping amplification device and seismic response analysis. Soil Dynamics and Earthquake Engineering, 188 (109062). pp. 1-14. ISSN 0267-7261. (Published)
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Abstract
The application of damping amplification technology to dampers can effectively enhance the energy dissipation efficiency and address the issue of underutilization during small displacements. In this study, a novel horizontal universal damping amplification device (HUDAD) is proposed, and its construction and operational mechanism are detailed. A restoring-force model for the horizontal universal viscous damping amplification device (HUDAD-VD) is derived, which integrates viscous dampers, establishing its equations of motion and energy balance. Furthermore, pseudo-static tests are conducted to validate the damping amplification and energy dissipation capabilities of the HUDAD-VD. Finally, a seismic response analysis of a multi-degree-of-freedom damping system incorporating the HUDAD-VD is performed to evaluate its seismic performance. The results show the close alignment between the experimental and theoretical hysteretic curves of the HUDAD-VD, confirming the accuracy of the theoretical model. The HUDAD-VD demonstrates effective damping performance under all levels of seismic action, successfully controlling the displacement within the seismic isolation layer. In particular, the HUDAD exhibits a satisfactory amplification effect, effectively enhancing the damper energy dissipation.
| Item Type: | Article |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Damping amplification device; Multi-degree-of-freedom seismic isolation system; Pseudo-static test; Restoring force model; Seismic response analysis |
| Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) |
| Faculty/Division: | Faculty of Civil Engineering Technology |
| Depositing User: | Mr Muhamad Firdaus Janih@Jaini |
| Date Deposited: | 20 Feb 2025 05:04 |
| Last Modified: | 20 Feb 2025 05:04 |
| URI: | http://umpir.ump.edu.my/id/eprint/43874 |
| Download Statistic: | View Download Statistics |
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