Damaged Flexibility Matrix Method for Damage Detection of Frame Buildings

Table 3

Periods, eigenvalues, and modal participating mass ratios of the MTSAM building.

Mode	Period (s)	Eigenvalue (rad^2/s^2)	Ratio (%)	Sum (%)
1	1.348	21.734	86.00	86.000
2	0.456	189.98	8.813	94.813
3	0.266	558.83	2.617	97.430
4	0.186	1143	1.194	98.624
5	0.143	1924.8	0.643	99.267
6	0.116	2956.9	0.294	99.561
7	0.098	4145.4	0.121	99.682
8	0.084	5572.6	0.037	99.719
9	0.076	6922	0.011	99.730
10	0.070	8052.6	0.004	99.734