Why is a rooftop tuned mass damper not interchangeable with elastomeric base isolation conceptually?

Choices

• (A) TMDs dissipate harmonic energy atop the tower without decoupling the whole structure from seismic spectra shift
• (B) Both schemes lengthen fundamental periods identically for every hazard
• (C) Wind turbulence equals seismic spectral acceleration mechanically
• (D) Dampers add mass without inertia effects