Analysis and Study on Bending Vibration Frequency of New Corrugated Steel Web Composite Box Girder

Table 2

Comparison of vibration frequency values of composite box girder with different high span ratios (Hz).

Order of frequency	h/l = 0.057			h/l = 0.053			h/l = 0.050
	fx	fp	η (%)	fx	fp	η/%	fx	fp	η (%)
1st order	3.799	4.021	5.52	3.576	3.768	5.10	3.347	3.458	3.21
2nd order	13.073	13.931	6.16	12.396	13.129	5.58	11.672	12.131	3.78
3rd order	24.651	26.361	6.49	23.447	25.013	6.26	22.197	23.395	5.12
4th order	36.902	39.658	6.95	35.139	37.751	6.92	33.396	35.676	6.39