The 'Pielachbrücke' railway bridge is located on the double-track western line in the St. Pölten - Attnang / Puchheim section in Lower Austria. Two separate steel structures each transfer a track structure with a conventional ballast superstructure. The three-field steel structures have a total length of 91.50 m, with all three fields having a length of 30.50 m each. The support structure consists of two abutments and two compact pillars with a pillar height of around 3.45 m.
Object description
(No object description available.)
Civil engineering type
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Year of construction
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Composed of materials
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Location coordinates
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48° 12' 0.46" N, 15° 30' 43.03" E
Country
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Object analysis
Through the targeted arrangement of sensors and measuring instruments, air, rail and structure temperatures, relative longitudinal displacements of the structure and relevant deformation parameters of the rails (expansion and compression) were measured and documented as part of a continuous measurement program.
Object state
The measuring equipment of the test object took place at two different times. On December 20, 2011, temperature sensors and displacement transducers were placed at the steel structure / track 3 on the abutment in order to record the deformation behavior of the steel structure. The measuring program was expanded from September 20, 2012 to include the strain gauges (DMS) applied to the rail web as well as further temperature sensors on the rail and on the supporting structure. Thus, the stretching behavior of the rails could be continuously observed and recorded during the measurement period [55]. From September 20, 2012, two additional displacement transducers were placed on the abutment on the supporting structure / track 4.
Observed deterioration processes
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Observed damage types
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Performance indicators
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Deformation, Displacement, Other actions (wind/temperature/earthquake)
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Documents
This case study was contributed by Lisa Ptacek of Universität für Bodenkultur Wien. Last edited by technical staff.