A decision-making system for large span bridge inspection intervals based on sliding window DFNN

Advances in Bridge Engineering

Table 3 Comprehensive scores (R) and inspection intervals (I/year) for some components

Element	Component	\(C_{1}\)	\(C_{2}\)	\(C_{3}\)	\(C_{4}\)	\(C_{5}\)	\(V_{1}\)	\(V_{1}\)	\(V_{3}\)	Li et al. (2011)			DFNN
Element	Component	\(C_{1}\)	\(C_{2}\)	\(C_{3}\)	\(C_{4}\)	\(C_{5}\)	\(V_{1}\)	\(V_{1}\)	\(V_{3}\)	R	I	R	I
Suspension cables	Main cables	0	100	0	100	100	100	100	0	69.59	2	69.63	2
	Strand shoes	0	67	0	67	100	79.4	79.4	0	53.32	2	53.33	2
	Shoe anchor rods	0	67	0	67	100	79.4	79.4	0	53.32	2	53.33	2
	Anchor bolts	0	67	0	67	100	79.4	79.4	0	53.32	2	53.33	2
	Cable clamps and bands	0	67	0	67	33	100	63	0	52.28	2	52.28	2
Suspenders	Hangers	0	100	67	67	33	79.4	79.4	0	63.53	2	63.53	2
	Hanger connections: stiffeners	0	100	0	67	33	79.4	79.4	0	55.69	1	55.69	1
	Hanger connections: bearing plates	0	100	0	67	33	79.4	79.4	0	55.69	1	55.69	1
Towers	Legs	0	67	0	100	67	100	0	0	48.54	2	48.54	2
	Portals	0	67	0	100	67	100	0	0	48.54	2	48.54	2
	Saddles	0	67	0	100	67	100	0	0	48.54	2	48.54	2
Anchorages	Chambers	0	0	0	100	100	100	0	0	37.37	2	37.35	2
	Prestressed anchors	0	100	0	67	67	79.4	0	0	47.86	2	47.86	2
	Saddles	0	67	0	100	67	79.4	0	0	43.39	2	43.39	2
Piers	Legs	0	0	0	100	100	100	0	0	37.37	2	37.35	2
Piers	Cross-beams	0	67	0	100	67	100	0	0	48.54	2	48.54	2