About this Research Topic
Passive vibration control technologies, including seismic isolation and energy dissipation devices, are increasingly being used for mitigating the damaging effects of earthquakes on existing and new structures and infrastructures. The capability of these systems in enhancing the performance of structural and non-structural components, proven through many earthquakes, makes them particularly desirable for the seismic protection of strategic structures and infrastructures that require minimal downtime after the seismic event.
Although isolation and dissipation technologies are quite mature to date, having been employed for many decades, there are still some open issues and research aspects that deserve further investigation. Among these, we mention:
- the improvement of current numerical models for describing their mechanical behavior vis-à-vis the experimental one;
- the need of novel design procedures, computationally more efficient or more accurate than the existing ones;
- the development of advanced probabilistic techniques capable of dealing with the uncertainties inherent to the devices and the response of the protected systems;
- the critical discussion of guidelines and regulations in force in different countries, prescribing acceptance criteria and/or testing protocols that have not yet achieved consensus;
- the continuous development of innovative technologies or devices.
This Research Topic aims to collect the latest research results on these open issues, by welcoming contributions from researchers, manufacturers and practitioners that include, but are not limited to, the following aspects:
1) advanced numerical modelling of the constitutive behavior of isolation/dissipation devices;
2) phenomenological models that can easily be used by practitioners and lend themselves to be implemented in standard software and/or technical regulations;
3) design philosophies and/or numerical procedures for optimal seismic performance of structures/infrastructures equipped with isolation/dissipation devices;
4) performance-based assessment and reliability-based design of structures and infrastructures equipped with isolation/dissipation devices;
5) innovative techniques for seismic isolation or energy dissipation;
6) new testing protocols or modification of existing protocols based on experimental results;
7) development of novel isolation/dissipation devices;
8) discussion of prototype tests from laboratory findings;
9) critical assessment of experimental observations on isolation/dissipation devices under service/extreme loading scenarios;
10) case studies or emblematic examples of implemented isolation/dissipation technologies;
11) examples of seismic response of structures/infrastructures equipped with isolation/dissipation devices after the occurrence of seismic events.
Keywords: Seismic base isolation, Energy dissipation devices, Tuned mass damper, Passive vibration control, Performance-based seismic engineering, Reliability-based design, Dampers, Damper optimization, Earthquake-resistant structures