Risk Assessment Method for Cable System Construction of Long-Span Suspension Bridge Based on Cloud Model

Table 3

Index weight of the cable system construction risk evaluation system.

Criteria layer	Weights	Indicator layer	Weights	Comprehensive weight
Saddle installation risk U1	0.2734	Falling objects U11	0.0801	0.0219
		Mounting bracket instability U12	0.2696	0.0737
		Cable saddle falling U13	0.5004	0.1368
		Lifting damage U14	0.1499	0.0410
Traction system installation and catwalk construction risk U2	0.3678	Commander signal is not uniform U21	0.0413	0.0152
		Catwalk load-bearing cable anchoring embedded parts are not strong U22	0.0594	0.0218
		Drowning accident U23	0.0967	0.0356
		Traction system failure U24	0.2081	0.0765
		Catwalk construction falls high U25	0.2660	0.0978
		Catwalk construction encounters strong winds U26	0.3285	0.1208
Main cable erection and cable tightening construction risk U3	0.2980	Hoist parts are loose U31	0.0952	0.0284
		Winch and entanglement machine mismatched U32	0.0601	0.0179
		Lifting accident U33	0.0409	0.0122
		Traction of the cable strand or strapping damage U34	0.1956	0.0583
		Strand slip U35	0.3266	0.0973
		Windy weather during the erection process U36	0.2817	0.0839
Cable clamp and sling installation risk U4	0.0608	Wire strand extrusion U41	0.0660	0.0040
		Cable clamp deformation U42	0.1277	0.0078
		Sling installation is tilted and biased U43	0.3423	0.0208
		Sling falling from high altitude U44	0.4640	0.0282