A Study on the Impact Coefficient of Traffic Flows on a Large Cable-Stayed Bridge in a Windy Environment

Table 1

Frequencies and modes of the Sutong Yangtze Bridge.

Mode order	Mode description	Frequency (Hz)
1	Longitudinal floatation	0.06
2	Symmetric lateral bending	0.10
3	Symmetric vertical bending	0.18
4	Antisymmetric vertical bending	0.22
5	Antisymmetric lateral bending	0.27
6	Symmetric vertical bending	0.30
47	Antisymmetric vertical bending	0.97
48	Symmetric vertical bending	1.03