Dynamic Performance Analysis of a Curved Cable-Stayed Bridge Based on the Direct Method and the Sensitivity-Based Iterative Method

Table 1

Comparison between the experimental and the numerical modes for the initial model.

Experimental results		Initial FEM results				Type
Mode	f exp (Hz)	Mode	F FE-ini (Hz)	Δf (%)	MAC
1	2.489	1	2.463	−1.02	0.896	Vertical bending
2	4.833	2	4.569	−5.47	0.718	Vertical bending
3	5.417	3	6.100	12.60	0.904	Vertical bending
4	7.089	4	6.951	−1.94	0.824	Vertical bending
5	8.290	5	7.223	−12.86	0.687	Torsion
6	10.130	6	9.484	−6.37	0.885	Torsion
7	11.312	7	11.335	0.20	0.774	Vertical bending
8	12.137	8	11.730	−3.35	0.202	Torsion
9	15.319	9	15.560	1.57	0.440	Torsion

Note. .