Relationships among aerodynamic admittance functions, flutter derivatives and static coefficients for long-span bridges
Wind actions on long-span bridges are commonly considered as the superimposition of buffeting forces and self-excited forces, depending on the aerodynamic admittance functions and on the flutter derivatives, respectively. Since bridge deck sections are bluff bodies, the aerodynamic admittance functi...
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| Veröffentlicht in: | Journal of wind engineering and industrial aerodynamics 2005-12, Vol.93 (12), p.929-950 |
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| container_title | Journal of wind engineering and industrial aerodynamics |
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| creator | Tubino, F. |
| description | Wind actions on long-span bridges are commonly considered as the superimposition of buffeting forces and self-excited forces, depending on the aerodynamic admittance functions and on the flutter derivatives, respectively. Since bridge deck sections are bluff bodies, the aerodynamic admittance functions and the flutter derivatives have to be determined experimentally by wind tunnel tests. This paper introduces a generalized quasi-static theory, defining new relationships among the flutter derivatives and the aerodynamic admittance functions. All the relationships are theoretically verified for the zero circular frequency; based upon experimental results, the validation of the relationships among the flutter derivatives is also provided for non-zero values of the frequency. |
| doi_str_mv | 10.1016/j.jweia.2005.09.002 |
| format | Article |
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Since bridge deck sections are bluff bodies, the aerodynamic admittance functions and the flutter derivatives have to be determined experimentally by wind tunnel tests. This paper introduces a generalized quasi-static theory, defining new relationships among the flutter derivatives and the aerodynamic admittance functions. All the relationships are theoretically verified for the zero circular frequency; based upon experimental results, the validation of the relationships among the flutter derivatives is also provided for non-zero values of the frequency.</description><identifier>ISSN: 0167-6105</identifier><identifier>EISSN: 1872-8197</identifier><identifier>DOI: 10.1016/j.jweia.2005.09.002</identifier><identifier>CODEN: JWEAD6</identifier><language>eng</language><publisher>Amsterdam: Elsevier Ltd</publisher><subject>Aerodynamic admittance function ; Applied sciences ; Bridges ; Buffeting forces ; Buildings. 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Public works</subject><subject>Climatology and bioclimatics for buildings</subject><subject>Exact sciences and technology</subject><subject>Flutter derivatives</subject><subject>Generalized quasi-static theory</subject><subject>Long-span bridges</subject><subject>Self-excited forces</subject><subject>Suspension bridges. Stayed girder bridges. Bascule bridges. 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| ispartof | Journal of wind engineering and industrial aerodynamics, 2005-12, Vol.93 (12), p.929-950 |
| issn | 0167-6105 1872-8197 |
| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Aerodynamic admittance function Applied sciences Bridges Buffeting forces Buildings. Public works Climatology and bioclimatics for buildings Exact sciences and technology Flutter derivatives Generalized quasi-static theory Long-span bridges Self-excited forces Suspension bridges. Stayed girder bridges. Bascule bridges. Swing bridges |
| title | Relationships among aerodynamic admittance functions, flutter derivatives and static coefficients for long-span bridges |
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