Název: Multipurpose experimental rig for aeroelastic tests of bridge girders and slender beams
Autoři: Pospíšil, Stanislav ; Král, Radomil ; Náprstek, Jiří
Typ dokumentu: Příspěvky z konference
Konference/Akce: Engineering Mechanics 2011 /17./, Svratka (CZ), 2011-05-09 / 2011-05-12
Rok: 2011
Jazyk: eng
Abstrakt: The bridges, footbridges and broadcast towers create an important subset of infrastructure subjected to dynamic loading of various origins. Especially, exposed to wind, they are susceptible to vibrations under certain circumstances due to pure load action or aero-elastic effects. This means that once an element or a structure starts to vibrate, a complex interaction between the moving boundary and the airflow takes place. Because of the complexity, the research has been in progress for several decades in both theoretical and experimental way. The article describes an original and multi-purpose experimental frame for the analysis of complex linear and non-linear aspects of aero-elastic behavior of the slender beams. The apparatus meets the rigorous theoretical assumptions and allows very precise and quick adjustment of the stiffness and mass of the structure, which is not always possible with a traditional "parallel spring-supported bridge" approach used by many researchers.
Klíčová slova: bridge aero-elasticity; experimental set-up; non-linear response; wind tunnel
Číslo projektu: CEZ:AV0Z20710524 (CEP), GA103/09/0094 (CEP), IAA200710902 (CEP)
Poskytovatel projektu: GA ČR, GA AV ČR
Zdrojový dokument: Engineering Mechanics 2011, ISBN 978-80-87012-33-8

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/11104/0199771

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-55935


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav teoretické a aplikované mechaniky
Konferenční materiály > Příspěvky z konference