Impact of Cross-Tie Properties on the Modal Behavior of Cable Networks on Cable-Stayed Bridges

Table 3

Comparison of modal properties of a symmetric DMT two-cable network with damped flexible or rigid cross-tie at .

Mode	Damped flexible cross-tie					Rigid cross-tie
	( kN/m,  kN·s/m)					(, )
	(Hz)		(%)		Mode shape	(Hz)	(%)	Mode shape
	Ana.	FEA	Ana.	FEA
1	1.55	1.55	1.71	1.72	GM, in-phase	1.68	0.61	GM, in-phase
2	2.15	2.15	4.01	4.01	GM, out-of-phase	2.91	0.25	LM, cable 1
3	2.91	2.91	0.25	0.25	LM, cable 1	3.37	0.34	GM, out-of-phase
4	3.98	3.98	0.40	0.40	LM, cable 2	3.98	0.40	LM, cable 2
5	4.42	4.41	1.11	1.12	LM, cable 1	5.04	0.21	GM, in-phase
6	5.83	5.82	0.12	0.12	LM, cable 1	5.83	0.13	LM, cable 1
7	6.03	6.02	1.29	1.29	LM, cable 2	6.74	0.17	GM, out-of-phase
8	7.31	7.30	0.72	0.72	LM, cable 1	7.97	0.20	LM, cable 2
9	7.97	7.96	0.20	0.20	LM, cable 2	8.41	0.13	GM, in-phase
10	8.74	8.72	0.08	0.08	LM, cable 1	8.74	0.08	LM, cable 1