Voestbrücke Bypass LZ34 A+B (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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Within the scope of this special inspection, the dynamic effects of the traffic loads on the supporting structure are to be recorded and the load-bearing capacity and functional capability are to be evaluated in comparison with the statics, as well as recommendations for the further service life with regard to structural maintenance measures are to be given in particular. In the present investigation of the two VOEST bypass bridges LZ34A and LZ34B, the main focus is on the bridge cables and the bridge deck (primary load-bearing system). The vibration measurement will be used as a zero measurement for future investigation. All measurements are carried out under traffic load. The vibration measurements contain two focal points: 1) non-destructive measurement of the bridge cables, this is based on the exact measurement and evaluation of the effective forces in the stay cables. The determined actual cable forces are compared with the target values of the statics, which allows conclusions to be drawn about the condition of the cables. The geometric parameters of the cables and the cable weight are made available for evaluation. 2) non-destructive, two-dimensional, dynamic measurement of the bridge deck, this is carried out on the basis of deck measurements in the respective spans. This makes it possible to comprehensively describe and quantify the relevant load-bearing behaviour of the bridge deck and any changes over time. is to be used as the zero measurement. The natural frequencies and natural modes of vibration are to be recorded.
Prior information
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Design standards, Drawings, Design documents
Performance indicator
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Dynamic response (acceleration/damping/frequencies), Other actions (wind/temperature/earthquake)
Inspection method
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IoT and sensor systems
The inspection method used in this case study to determine the object state was "IoT and sensor systems". This can include any of the following surveying technologies. Click one of the links below for more information:
IoT and sensor systems