Fatigue Performance of Steel-Concrete Composite Continuous Box Girder Bridge Deck

Table 10

Damage degrees under various working conditions.

Year	On the beam 7.0 m from the centerline of the bridge			On the beam with the highest wheel frequency
	Cumulative damage degree			Cumulative damage degree
	Working condition 1	Working condition 2	Working condition 3	Working condition 1	Working condition 2	Working condition 3
2010	0.01	0.01	0.01	0.01	0.01	0.01
2020	0.16	0.09	0.10	0.16	0.09	0.11
2030	0.39	0.22	0.24	0.39	0.22	0.26
2040	0.65	0.37	0.40	0.65	0.37	0.43
2050	0.92	0.52	0.57	0.92	0.52	0.60
2060	1.18	0.66	0.73	1.18	0.67	0.78
2110	2.49	1.40	1.54	2.49	1.42	1.64
Year	Midspan of 7.0 m from the centerline of the bridge			Midspan at the highest wheel frequency
	Cumulative damage degree			Cumulative damage degree
	Working condition 1	Working condition 2	Working condition 3	Working condition 1	Working condition 2	Working condition 3
2010	0.11	0.06	0.07	0.11	0.07	0.06
2020	1.57	0.89	0.97	1.57	1.11	0.94
2030	3.77	2.13	2.33	3.77	2.66	2.26
2040	6.29	3.55	3.89	6.29	4.44	3.77
2050	8.82	4.98	5.45	8.82	6.22	5.28
2060	11.34	6.40	7.01	11.34	8.00	6.80
2110	23.97	13.53	14.81	23.97	16.91	14.36