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WORK PACKAGE 9: PRACTICAL BRIDGE MANAGEMENT - page 51 / 67

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SAMCO Final Report 2006 F09 Report on Bridge Management

General question 2: What monitoring type would be the most relevant for you and what would the main requirements be for such monitoring ?.

A number of replies and comments were received to this question. In general the replies specify:

  • 1.

    Condition monitoring would be very relevant. This would provide an continu- ously updated status of the structures condition and also establish a track re- cord of the progress towards initiation of the damage and of the damage growth.

  • 2.

    Monitoring which is cheap, cost-efficient, reliable and simple would provide a major improvement and enlarge the potential monitoring volume significantly.

  • 3.

    Monitoring should include as few parameters as possible, as this reduces the costs and facilitates the data interpretation. The parameters and monitoring positions should be selected so they provide a representative assessment of the structure.

  • 4.

    The short term methods (NDT) should be correlated with the long term moni- toring. This would combine the best of the two approaches.

  • 5.

    Monitoring should be designed, so it can be combined and compared with the visual and periodic inspections.

A number of more specific needs were also pointed out

6. A strong tool for the analysis of dynamic data would be required, if the data are to be used as an efficient input to the damage predictions.

  • 7.

    Monitoring for loss of stress in cables in suspension bridges is needed.

  • 8.

    Sensors for monitoring carbonation depth are needed.

www.samco.org

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