Bridge of Traba (object state)

A condition of an object at a particular time, reflecting the object's ability to fulfil it's requirements.

Properties

Element type

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Object state

Summary

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GPR surveys are carried out using a RAMAC / GPR system from MALÅ Geoscience. Shielded 250 and 500 MHz antennas are used and data acquisition is based on constant distance intervals following the common compensation mode. A total of two parallel longitudinal profiles is generated in opposite directions along the bridge and filtered. A three-dimensional model of the bridge is also constructed using a terrestrial laser scanner, and the surface texture of the object is captured using a semi-metric digital camera. Two types of scans are ejected at each scan position: first, a low resolution is acquired to have the overall geometry of the bridge and its surroundings, and then detailed scans are captured with a maximum spatial resolution of the entire bridge. Finally, the precise external geometric measurements of the bridge, as well as the orthophotography provided by laser scanning, are used as inputs to create synthetic radargrams.

Performance indicator

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Electrical properties, Other actions (wind/temperature/earthquake), Electromagnetic properties

"Electromagnetic properties" is not in the list (Deformation, Displacement, Traffic information via WIM/BWIM, Dynamic response (acceleration/damping/frequencies), Material mechanical properties, Chemical properties, Electrical properties, Load bearing capacity, Spatial properties (concrete cover/duct voids), Other actions (wind/temperature/earthquake), ...) of allowed values for the "Performance indicator" property.

Inspection method

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Terrestrial dedicated inspection platforms and MMS, NDT active or passive testing technologies, Visual inspection

Relations with other elements

Bridge of Traba (object state)

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Observed deterioration processes Meteorological conditions - excess humidity

Bridge of Traba (case study)

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Concluded object state Bridge of Traba (object state)

The inspection method used in this case study to determine the object state was "Terrestrial dedicated inspection platforms and MMS,NDT active or passive testing technologies,Visual inspection". This can include any of the following surveying technologies. Click one of the links below for more information:
Terrestrial dedicated inspection platforms and MMS

• Aerial UAV with optical payloads
• Light Detection And Ranging or Laser Imaging Detection And Ranging (LiDAR)
• Satellite remote sensing

NDT active or passive testing technologies

• Acoustic Emission techniques (AE)
• Ground Penetrating Radar (GPR)
• Guided Waves Propagation (GW) techniques
• Magnetic and electrical methods
• Radiological and nuclear methods

Visual inspection

• (No corresponding surveying technology was found.)