Comparison of Non-Destructive Techniques for Technological Bridge Deflection Testing

This paper presents a comparison and assessment of usefulness of various measuring techniques (terrestrial laser scanning (TLS), tachymetry, photogrammetry) applied to establish the behavior of a suspension bridge under different load scenarios. The applied techniques were examined on the bridge wit...

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Bibliographic Details
Published in:Materials 2020-04, Vol.13 (8), p.1908
Main Authors: Kwiatkowski, Jacek, Anigacz, Wojciech, Beben, Damian
Format: Article
Language:English
Subjects:
Bearings
Belt conveyors
Bridge inspection
Bridge loads
Bridges
Design
Destructive testing
Digital cameras
Dynamic loads
Lasers
Load
Methods
Nondestructive testing
Photogrammetry
Reinforced concrete
Researchers
Scanners
Service loads
Static loads
Suspension bridges
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Summary:This paper presents a comparison and assessment of usefulness of various measuring techniques (terrestrial laser scanning (TLS), tachymetry, photogrammetry) applied to establish the behavior of a suspension bridge under different load scenarios. The applied techniques were examined on the bridge with a 165 m span. The tested structure works as the technological bridge for a belt conveyor linking a lime mine and cement plant. The testing range consisted of conducting the non-contact measuring of the bridge and cable displacements under dynamic loads (during the belt conveyor movement-normal service loads) and static loads (while stopped). Tachymetric surveys were carried out using a precise total station (to obtain the reference data). A Canon 750D digital camera was applied in the photogrammetry technique. FARO Focus 3D and Trimble TX8 scanners were employed for the TLS measuring. The obtained results are especially important for bridge inspectors and managers who can use the non-contact measurements of serviced structures.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma13081908