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The advancement of seismic isolation and energy dissipation mechanisms based on friction
Soil Dynamics and Earthquake Engineering ( IF 4.2 ) Pub Date : 2021-04-05 , DOI: 10.1016/j.soildyn.2021.106746
Chunwei Zhang , Amir Ali

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.



中文翻译:

基于摩擦的隔震消能机理研究进展

根据研究人员进行的分析,数值和实验研究,讨论了基于摩擦原理的结构基础隔震系统的历史发展和实际应用。已经探索了影响隔离系统整体性能的各种参数,例如滑动速度,表面温度,轴向压力,垂直激励以及近场和远场激励。还讨论了使用传统隔离系统以及新引入的智能和自适应多表面隔离器(如双凹和三摩擦摆系统)的优缺点。简要解释了与摩擦基础隔离系统相关的优点和问题,并提出了一些未来的研究建议,包括实际实验工作和数值模拟,以验证摩擦基础隔震系统的性能。利用某些新型和智能材料的设计优化和优化设计,实现了自适应基础隔离系统,特别是结合了诸如压力,速度和温度依赖性以及多向载荷等复杂问题。

更新日期:2021-04-06
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