Název:
Moving dynamic test loads for road bridges - a case study
Autoři:
Bayer, Jan ; Urushadze, Shota Typ dokumentu: Příspěvky z konference Konference/Akce: Engineering mechanics 2019 /25./, Svratka (CZ), 20190513
Rok:
2019
Jazyk:
eng
Abstrakt: Two types of dynamic testing load for bridges - driving sprung mass and driving impulse load - areexamined from the drive-by identification point of view. Numerical studies in ANSYS using contact elements and in MATLAB using a modal solution together with coupling force were performed. Equations for the estimation of the impulse load caused by a rolling cogwheel were suggested. The experiments confirmed that a driving impulse load is more efficient in exciting bridge vibrations. This, together with the fact that impulse loading is not sensitive to surface roughness, leads to the conclusion that, as a method for bridge health monitoring, impulse loading is more promising than using a driving sprung mass
Klíčová slova:
bridge testing; drive-by identification; impulse loading; laboratory experiments; moving sprung mass; vibration measurements Číslo projektu: GC17-26353J (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: Engineering mechanics 2019. Book of full texts, ISBN 978-80-87012-71-0, ISSN 1805-8248
Instituce: Ústav teoretické a aplikované mechaniky AV ČR
(web)
Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0296218