SAMCO Final Report 2006 F09 Report on Bridge Management
Rating B T V M
Description Damage/deficiency threatening load carrying capability Damage/deficiency threatening traffic safety Damage/deficiency that may increase maintenance costs
Damage/deficiency that may affect the environment/aesthetics Table 22. Damage impact rating in Norway.
The results of measurements and material investigations shall, along with inspec- tions, form the basis for establishing the degree of damage and the consequences of the damage. The codes for the degree and the consequence of the damage shall be used together when damage is to be assessed (e.g., 3B - serious damage/deficiency that can reduce bridge carrying capability if it remains untouched for more than 1-3 years. Action required within 1-3 years).
For each damage type, the activating condition is described in "Inspections Hand- book for Bridges". The term activating conditions means that a structure or an ele- ment has suffered damage or developed faults or deficiencies that require mainte- nance soon. The activating condition must be determined when inspecting bridges, that is, what can be accepted and what will require action. This shall be indicated using the degree of damage in the following manner:
Degree of damage 1: condition may be accepted without action.
Degree of damage 2-4: condition will require short or long-term action (up to 10
If possible, the cause of the damage should be reported (not claim for General in- spection).
The condition assessment of the bridge is based on the assessment of individual bridge elements. For this reason the bridge is divided in elements like expansion joints, bearings, drainage systems, rails, pavement and watertight membrane, super- structure, columns, abutments, etc.
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