Supplemental Damping of Rocking Systems Coupled with Pressurized Sand Dampers
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Bibliographic Details
| Author(s): |
Konstantinos N. Kalfas
(The University of Texas at Tyler, Dept. of Civil Engineering, Tyler, TX, USA)
Liang Cao (ATLSS Engineering Research Center, CEE Dept., Lehigh University, Bethlehem, PA, USA) James M. Ricles (ATLSS Engineering Research Center, CEE Dept., Lehigh University, Bethlehem, PA, USA) Nicos Makris (Southern Methodist University, Dept. of Civil and Environmental Engineering, Dallas, TX, USA) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Beyond Structural Engineering in a Changing World, San José, Cost Rica, 25-27 Seotember 2024 | ||||
| Published in: | IABSE Congress San José 2024 | ||||
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| Page(s): | 394-402 | ||||
| Total no. of pages: | 9 | ||||
| DOI: | 10.2749/sanjose.2024.0394 | ||||
| Abstract: |
This study discusses the results of the seismic performance of a single-story cross-laminated timber (CLT) building with post-tensioned CLT rocking walls, coupled with pressurized sand dampers (PSD), using real-time hybrid simulation (RTHS). Firstly, the details of the building are presented, and then, the RTHS approach is introduced. The analytical substructure in the RTHS contains the numerical model of a self-centering (SC) post-tensioned CLT rocking wall (SC-CLT wall), while two physical PSDs form the experimental substructure. This is a collaborative study where the PSDs are designed and built at Southern Methodist University (SMU). The RTHS took placed in the NHERI Lehigh Experimental Facility. The RTHS results under various earthquake excitations are presented. The results obtained from the RTHS are compared with numerical simulation results of a conventional CLT shear wall and a SC-CLT wall without PSD. Results show that the PSD produces a significant reduction in the inter-story drift, offering supplemental damping to the system. |
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| Keywords: |
cross-laminated timber Real-time hybrid simulation pressurized sand damper rocking wall supplemental damping
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