Assessment of Prestress Force in Bridges Using Structural Dynamic Responses under Moving Vehicles

Table 1

Identified results for different road surface roughness.

	Road surface roughness
	Class A	Class B	Class C	Class D
Max error (%)	0.01	0.02	0.02	0.05
Iteration number	12	12	13	18
𝜆optimal	1.21×10^−9	1.23×10^−9	1.30×10^−9	1.49×10^−9