Table 4 Improved AHP evaluation index system for Bridge No. 2.
Top level | Intermediate level | Bottom level |
|---|---|---|
A comprehensive status assessment of No. 2 fairway bridge | B1. Steel box girder | C1. Main girder deflection |
C2. Main girder stress | ||
C3. Main girder lateral displacement | ||
C4. Main girder longitudinal displacement | ||
C5. Vibration frequency | ||
B2. Concrete main tower | C6. Main tower stress | |
C7. Main tower longitudinal displacement | ||
C8. Main tower lateral displacement | ||
B3. Main cable system | C9. Main cable tension | |
C10. Main cable protective layer | ||
C11. Cable clamp force | ||
C12. Cable saddle displacement | ||
B4. Suspender system | C13. Suspender cable tension | |
C14. Suspender cable protective layer | ||
C15. Damping device | ||
B5. Anchor block | C16. Anchor block displacement | |
C17. Concrete strength | ||
B6. Substructure | C18. Bearing displacement | |
C19. Foundation settlement | ||
C20. Concrete strength | ||
B7. Auxiliary facilities | C21. Bridge deck pavement | |
C22. Expansion joint | ||
C23. Drainage system | ||
C24. Lighting system | ||
C25. Railings | ||
B8. Environmental factors | C26. Temperature | |
C27. Humidity | ||
C28. Wind direction and speed | ||
C29. Chloride ion concentration |
