ABAQUS simulations compared a conventional connected high-rise structure with single- and double-sided damping layers using lead-rubber bearings. Both damping layouts improved horizontal energy dissipation, with the double-sided system performing better, but vertical-earthquake control remained weak. The evidence is computational, not full-scale building validation.
Key findings
- Both damping configurations outperformed the conventional model in energy dissipation and response control, and adding the second damping layer produced stronger damping and a higher dissipation rate. Layer placement mitigated overturning risk associated with excessive upper-structure bending, but neither system clearly controlled vertical motion.
Why this matters globally
The concept may inform connected-tower design in seismic cities by combining isolation and damping at selected storeys rather than relying only on base isolation.
Thai researcher contribution
Dewen Liu is affiliated with Southwest Forestry University in China and the International College at Krirk University in Thailand. The Thai link is an institutional collaboration and does not establish that the model represents a Thai building.
Limitations to consider
The abstract reports no numerical reduction ratios, and results depend on material assumptions, bearing models, ground-motion selection and building geometry. There was no shaking-table or field validation, and vertical response remains a major unresolved weakness.