Illustration of Computation of b/a in an Ideal Case

FD

FU

Exact

Multiply by random constants;

a1=6 & a2=3

Say we have a1 FU=Q & a2 FD=R

The approach suggested previously leads to:

Before Damage : ki =100 (All Floors)

After Damage : k1 = 50 (1st Floor)

Imperfect data -- Eigenvalues are NOT identical -- What TO DO?

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