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WORK PACKAGE 9: PRACTICAL BRIDGE MANAGEMENT - page 48 / 67

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SAMCO Final Report 2006 F09 Report on Bridge Management

Reason for using monitoring in the assessment of a structure ??

Need for this (*=minor, ***=major)

Feedback to design codes Check design assumption Loss of pre-stressing Cable tension Corrosion Carbonation and chlorides ingress Self healing of cracks and corrosion Fatigue crack initiation and progress Shear crack (concrete) Water ingress Vibration and damping Seismic risk Scour Impact of floating debris, boats and ships

Weight in motion Load measurement at support Periodic monitoring (deflections, strains, cracks, loads, etc.) Continuous monitoring (deflections, strains, cracks, loads, etc.) Evaluation of new techniques Loss of stability Explosive collapse

- ∗∗∗ - ∗∗∗ - ∗∗∗ - ∗∗∗ ∗∗ - ∗∗∗ ∗∗ - ∗∗∗ - ∗∗ - ∗∗∗ - ∗∗∗ - ∗∗ - ∗∗* - ∗∗∗ - ∗∗ - ∗∗∗

∗∗ - ∗∗∗

∗∗∗ - ∗∗∗

Table 28. Motivation for using monitoring and the end-users need for such a type of monitoring (range in answers is indicated).

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