Abstract
In this study, rate-independent linear damping (RILD) is proposed for the seismic protection of inter-story isolated structures. For practical applications, the RILD force is approximated using a causal algorithm and then tracked using semi-active control. Both numerical simulation and shake table real-time hybrid simulation (RTHS) are used to study a 14-story inter-story isolated structure. First, the causal approximation of RILD evaluated in RTHS is compared to numerical simulation. Second, the benefits of RILD for inter-story isolated structures are demonstrated as compared to conventional damping. RILD offers an attractive control alternative by restricting isolation layer displacements without amplifying accelerations.
| Original language | English |
|---|---|
| Journal | Journal of Earthquake Engineering |
| DOIs | |
| Publication status | Accepted/In press - 2020 Jan 1 |
Keywords
- inter-story isolation
- Rate-independent linear damping
- real-time hybrid simulation
- semi-active control
- shake table testing
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Geotechnical Engineering and Engineering Geology
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Cite this
Keivan, A., Zhang, R., Keivan, D., Phillips, B. M., Ikenaga, M., & Ikago, K. (Accepted/In press). Rate-Independent Linear Damping for the Improved Seismic Performance of Inter-Story Isolated Structures. Journal of Earthquake Engineering. https://doi.org/10.1080/13632469.2019.1693444