Earthquake Protection of Existing Structures with Limited Seismic Joint: Base Isolation with Supplemental Damping versus Rotational Inertia

<div>Optimal TMDI tuning for firm soil conditions: (a) minimum OF achieved, normalized with respect to the case without TMDI; (b) optimal frequency ratio; (c) optimal damping ratio.</div>

Advances in Civil Engineering

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Figure 6

Figure 6: Earthquake Protection of Existing Structures with Limited Seismic Joint: Base Isolation with Supplemental Damping versus Rotational Inertia 

Figure 6 | Earthquake Protection of Existing Structures with Limited Seismic Joint: Base Isolation with Supplemental Damping versus Rotational Inertia 