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Ein angepasstes Ermüdungslastmodell für stählerne Stabbogenbrücken mit freistehenden Bögen
Other Titles
An adjustable fatigue load model for steel bowstring bridges with free standing arches
Publikationstyp
Journal Article
Date Issued
2013-08-06
Sprache
German
Author(s)
Institut
TORE-URI
Journal
Volume
82
Issue
8
Start Page
589
End Page
596
Citation
Stahlbau 8 (82): 589-596 (2013)
Publisher DOI
Scopus ID
Publisher
Ernst ; Wiley
Lateral arch vibrations are frequently observed at existing steel bowstring bridges. These result from critical axle arrangement loads of crossing trucks and resonance. A long post oscillation is often detected. Hence, a large fatigue load for the arch and the adjacent construction components exists, which is included in the actual standards insufficiently. An extended fatigue load model for structural design is presented to incorporate the large fatigue load while planning such bridges. It is called ELM 3a and is based on the fatigue load model 3 given in DIN Fachbericht 101. An adjustable distance between axles and an adjustable speed are introduced for the ELM 3a to maximize the lateral arch vibrations. A simplified impulse form is given for the wheel loads in this context, which can be used in an FEM calculation for example. © Ernst & Sohn;.
DDC Class
620: Ingenieurwissenschaften
690: Hausbau, Bauhandwerk
720: Architektur