A Multiscale Finite Element Model Validation Method of Composite Cable-Stayed Bridge Based on Structural Health Monitoring System

Table 9

Comparison of updated frequencies and measured frequencies, MAC values (unit: Hz).

Direction		Frequencies (Hz)				MAC values (%)
		Measured frequencies ①	Calculated frequencies of single-scale FEM	Updated frequencies of multiscale FEM ②	Relative error; (② − ①)/① (%)
Vertical	1	0.38	0.36	0.35	7.80	91.01
	2	0.50	0.50	0.51	2.00	91.21
	3	0.77	0.76	0.80	3.90	93.15
Transverse	1	0.39	0.28	0.37	5.13	91.11
	2	0.50	0.39	0.52	4.00	92.25
Torsion	1	0.63	0.59	0.59	6.35	92.11
Longitudinal	1	0.87	0.15	0.87	0.00	95.23