17.14.3. Maintenance Decision Tree Example

Try these first

1. 1.

   What happens if a crack width exceeds 0.3 mm?

   Hint

   Think about the consequences of large cracks.

2. 2.

   What should you do if the displacement increase is less than 20%?

   Hint

   Not every situation requires immediate action.

3. 3.

   What is scheduled if the crack width exceeds 0.3 mm?

   • Continue Monitoring
   • Schedule Repair
   • Detailed Inspection

   Hint

   Think about how engineers respond to serious cracks.

4. 4.

   True or False: Displacement increase of less than 20% in six months requires scheduling a repair.

   • True
   • False

   Hint

   What’s the threshold for action?

5. 5.

   A highway bridge monitored over 6 months shows cracks at 0.4 mm and an increase in displacement of 25%. What steps should be taken?

   Hint

   Consider both conditions together in your decision.

6. 6.

   If a structure continues to show minor cracks but no significant displacement over time, how should you justify your monitoring approach to stakeholders?

   Hint

   What do your data patterns suggest to the decision-makers?