Vibration-Based Damage Evaluation of a Reinforced Concrete Frame Subjected to Cyclic Pushover Testing

Table 3

Identified parameters for the first mode: SSI versus EFDD methods.

Drift (%)	SSI		EFDD
	f1 (Hz)	ζ1(%)	f2 (Hz)	ζ2(%)
0	40.91	13.55	39.06	1.22
0.35	34.82	12.15	35.72	4.09
0.5	31.97	9.07	30.78	3.67
0.75	29.48	1.22	29.55	1.38
1	28.91	2.57	29.59	1.64
1.5	24.16	4.60	24.41	6.30
2	19.92	7.71	21.48	2.46
2.5	19.03	5.10	20.66	4.73
3.2	15.18	6.41	15.63	3.30
4	13.84	4.88	12.28	3.48