A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Enhanced assessment of the remaining service life of a steel railway bridge
Cracks in the web of the main steel beams of the Söderström Bridge in central Stockholm have been discovered. Extensive monitoring of the structural behavior have been undertaken to enhance the assessment of the remaining service life of the bridge. The following conclusions are based on the results of the instrumentation and monitoring program: The monitoring program gives reliable and adequate results for bridge assessment. To take advantage of the extensive amount of collected data, efficient routines are a condition. For the studied bridge, the resulting cumulative damage shows that more detailed analyses and short inspection intervals are necessary. The bridge has been in service for over fifty years and has well past the theoretical service life. To explain the lack of discovered fractures on the stringers it is necessary to calculate an expected crack width. The origin of the discovered fractures in the main beams has not been studied within the scope of this paper. However, the fractures are considered to be of little importance for the capacity of the bridge and are a consequence of a poorly designed connection between the main beams and cross beams.
Enhanced assessment of the remaining service life of a steel railway bridge
Cracks in the web of the main steel beams of the Söderström Bridge in central Stockholm have been discovered. Extensive monitoring of the structural behavior have been undertaken to enhance the assessment of the remaining service life of the bridge. The following conclusions are based on the results of the instrumentation and monitoring program: The monitoring program gives reliable and adequate results for bridge assessment. To take advantage of the extensive amount of collected data, efficient routines are a condition. For the studied bridge, the resulting cumulative damage shows that more detailed analyses and short inspection intervals are necessary. The bridge has been in service for over fifty years and has well past the theoretical service life. To explain the lack of discovered fractures on the stringers it is necessary to calculate an expected crack width. The origin of the discovered fractures in the main beams has not been studied within the scope of this paper. However, the fractures are considered to be of little importance for the capacity of the bridge and are a consequence of a poorly designed connection between the main beams and cross beams.
Enhanced assessment of the remaining service life of a steel railway bridge
Verbesserte Bewertung der Restlebensdauer einer Stahleisenbahnbrücke
Leander, John (author) / Andersson, Andreas (author) / Karoumi, Raid (author)
2009
8 Seiten, 9 Bilder, 1 Tabelle, 5 Quellen
Conference paper
English
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