Girder Longitudinal Movement and Its Factors of Suspension Bridge under Vehicle Load

Table 4

Cases for calculation of different damping conditions.

Factor no.	Damping ratio	Damper parameters	Friction
1	0.005	Ignored	Ignored
2	0.005	C = 5000 kN/(m/s) ^α, α = 0.4	Ignored
3	0.005	C = 5000 kN/(m/s) ^α, α = 0.4	Counted
4	0.03	Ignored	Ignored