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SAMCO Final Report 2006 F09 Report on Bridge Management

4.2 Denmark (RAMBOLL)

The Danish practice (in the Danish Road Directorate) includes the types of inspec- tions listed in Table 1 and uses the ratings described in Table 2.

Inspection type

Frequency

Result

Routine

1-6 years

Visual inspection, leading to the condition rating of the 13 basic components, which the bridge may consist of. Needs for maintenance, cleaning, repairs or additional inspections are identified.

Principal

< 6 years

Extensive visual inspection, leading to recommendations for special inspections incl. which methods, areas and sample types to be considered.

Special

When needed

Visual inspection combined with NDT-testing and sam- pling with the purpose of determining the causes and extend of damage and to propose the optimal actions to be taken.

Table 1. Inspection types in Denmark.

Rating 0

Description

Only insignificant deteriorations. No or little damage and the structures condition is as a new.

1

Only minor signs of deterioration. Damage may occur and develop over many years. No repair required as the condition is almost as new.

2

The observed damage is only slightly developed or only few, developed cases of damage are observed. Repair is only carried out if convenient, as the element will function for many years still.

3

The damage has reached such a condition and size, so the functionality is at risk in a few years. Repair will be required in a few years time.

4

The element is severely damaged and the functionality is no longer present or will disappear in a few years time. Repair is required in near future.

5

The element is completely deteriorated and must be repaired immediately.

Table 2. Condition rating used in Denmark /VD, 1994/ is a sum of the damage rating (0-3), the function- ality rating (0-1) and the consequence rating (0-1).

The bridge management systems used in Denmark are DANBRO, DANBRO+ and DANBROweb.

www.samco.org

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