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Original title:
Multipurpose experimental rig for aeroelastic tests of bridge girders and slender beams
Authors: Pospíšil, Stanislav ; Král, Radomil ; Náprstek, Jiří
Document type: Papers
Conference/Event: Engineering Mechanics 2011 /17./, Svratka (CZ), 2011-05-09 / 2011-05-12
Year: 2011
Language: eng
Abstract: 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.
Keywords: bridge aero-elasticity; experimental set-up; non-linear response; wind tunnel
Project no.: CEZ:AV0Z20710524 (CEP), GA103/09/0094 (CEP), IAA200710902 (CEP)
Funding provider: GA ČR, GA AV ČR
Host item entry: Engineering Mechanics 2011, ISBN 978-80-87012-33-8
Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0199771
Permalink: http://www.nusl.cz/ntk/nusl-55935
The record appears in these collections:
Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
Conference materials > Papers
Authors: Pospíšil, Stanislav ; Král, Radomil ; Náprstek, Jiří
Document type: Papers
Conference/Event: Engineering Mechanics 2011 /17./, Svratka (CZ), 2011-05-09 / 2011-05-12
Year: 2011
Language: eng
Abstract: 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.
Keywords: bridge aero-elasticity; experimental set-up; non-linear response; wind tunnel
Project no.: CEZ:AV0Z20710524 (CEP), GA103/09/0094 (CEP), IAA200710902 (CEP)
Funding provider: GA ČR, GA AV ČR
Host item entry: Engineering Mechanics 2011, ISBN 978-80-87012-33-8
Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0199771
Permalink: http://www.nusl.cz/ntk/nusl-55935
The record appears in these collections:
Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
Conference materials > Papers
Record created 2011-09-27, last modified 2024-01-26