Feasibility Study on Tension Estimation Technique for Hanger Cables Using the FE Model-Based System Identification Method

Table 4

Results of the tension estimation using the FE model-based system identification method (hinges at both sides).

Cable number	Frequency	1	2	3	4	5	SRSS; (%)	Tension; (kN)
29A	Measured (Hz)	3.20	6.42	9.60	12.63	15.32	2.73	381.96
	Calculated (Hz)	3.18	6.36	9.53	12.66	15.68
	Error (%)	0.79	0.91	0.73	0.25	2.33
29B	Measured (Hz)	3.05	6.10	9.11	12.05	15.54	3.03	334.38
	Calculated (Hz)	3.02	6.04	9.06	12.05	14.93
	Error (%)	1.04	0.87	0.52	0.00	2.66
36A	Measured (Hz)	9.38	15.91	23.15	34.82	49.14	8.31	363.89
	Calculated (Hz)	9.12	16.77	23.90	24.28	47.00
	Error (%)	2.82	5.40	3.27	1.53	4.35
36B	Measured (Hz)	9.20	15.46	22.90	34.78	48.28	7.96	331.92
	Calculated (Hz)	8.94	16.37	23.45	33.93	46.83
	Error (%)	2.83	5.87	2.42	2.44	3.00