Dynamic Property Analysis of Orthotropic Bridge Deck with Local Fatigue Crack

Table 3

Frequency of local vibration mode (Type 2 damage).

Local mode	Frequency (Hz)
	Heathy	Case 1	Error (%)	Case 2	Error (%)	Case 3	Error (%)
1	126.21751	126.20012	−0.014	124.09384	−1.683	94.26651	−25.314
2	142.82004	142.72666	−0.065	141.71643	−0.773	123.3421	−13.638
3	148.12576	148.12542	−0.000	148.11960	−0.004	141.74663	−4.307
4	159.98489	159.98089	−0.0025	159.07485	−0.569	148.12468	−7.413
5	162.14186	162.11066	−0.019	161.87736	−0.163	159.93448	−1.361