Journal
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
Volume 146, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.soildyn.2021.106746
Keywords
Structural vibration control; Friction base isolation; Smart isolation system; Earthquake energy dissipation; Adaptive control systems
Funding
- Ministry of Science and Technology of the People's Republic of China [2019YFE0112400]
- National Natural Science Foundation of China [52078310, 51678322]
- Taishan Scholar Priority Discipline Talent Group program - Government of Shandong Province
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The historical development and practical implementation of structural base isolation systems working on the principle of friction were discussed in this paper, analyzing various parameters influencing the overall performance and comparing traditional systems with newly introduced smart isolators. Suggestions for future research and design optimization utilizing new materials were also provided.
The historical development and practical implementation of structural base isolation systems that work on the principle of friction are discussed in the light of analytical, numerical, and experimental studies carried out by researchers. Various parameters such as sliding velocity, surface temperature, axial pressure, vertical excitation along with near-field and far-field excitations that influence the overall performance of the isolation system have been explored. Merits and demerits of using traditional isolation systems and newly introduced smart and adaptive multiple surface isolators such as double concave and triple friction pendulum system is also discussed. Advantages and problems associated with friction base isolation systems are briefly explained with some future research suggestions, including practical experimental work and numerical simulations to verify the behavior of friction base isolation systems. Design optimization and optimal design utilizing some new and smart materials to achieve adaptive base isolation systems particularly incorporating complex problems, such as pressure, velocity, and temperature dependency along with multi-directional loadings.
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