Infill Modelling Influence on Dynamic Identification and Model Updating of Reinforced Concrete Framed Buildings

Table 9

Results of the modal decomposition analysis from the model without the underground story, assuming  = 0.24, and comparison with experimental outcomes.

Experimental modes	Numerical modes		Experimental frequencies (Hz)	Numerical frequencies (Hz)	Percentage differences (%)	MAC (%)
1	1	0.42	2.47	2.19	−11.34	97.51
2	2	0.29	2.55	2.77	8.63	31.97
3	3	0.17	2.79	3.01	7.89	92.40
4	4	0.08	8.66	6.85	−20.90	78.81
5	5	0.04	9.57	8.75	−8.57	84.25