PSI - Issue 22

Manuel Angel Díaz García et al. / Procedia Structural Integrity 22 (2019) 313–321 Manuel Ángel Díaz García/ Structural Integrity Procedia 00 (2019) 000 – 000

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possible to consider larger critical crack sizes (F t3 ). Once again, it is necessary to check whether the critical crack obtained is detectable by visual inspection methods or not.

Start

NO

Is there crack? Fr

End

YES

Inspection threshold size

Structural and integrity assessment. Ft1

YES

YES

Is Ft1 detectable?

Control Plan or repair

Ft1>Fr

NO

NO

End

Refinement calculation IA. Ft2

YES

YES

Is Ft2 detectable?

Control Plan or repair

Ft2>Fr

NO

Reduce inspection threshold

NO

End

NO

Structural redundancy? Ft3

YES

YES

YES

Is Ft3 detectable?

Ft3>Fr

NO

NO

Control Plan or repair

Repair

End

End

Figure 2. Flowchart of the alternative structural integrity assessment methodology for steel bridges.