A Procedure to Identify the Modal and Physical Parameters of a Classically Damped System under Seismic Motions

Table 10

Identified seismic eigenvectors 𝜽_𝑘 with optimization.

Floor	𝜽^opt1	𝜽^opt2	𝜽^opt3	𝜽^opt4	𝜽^opt5	∑^5𝑘=1𝜽𝑗𝑘
1	+0.2077	+0.2502	+0.2718	+0.1996	+0.0701	0.9994
3	+0.9078	+0.3347	−0.2249	−0.1238	+0.1073	1.0011
4	+1.1698	−0.0834	−0.2281	+0.2102	−0.0677	1.0008
5	+1.3372	−0.5347	+0.2923	−0.1216	+0.0272	1.0004