Experimental analysis of aerodynamic stability of stress-ribbon footbridges

0452991 - ÚTAM 2016 RIV KR eng J - Článek v odborném periodiku
Pirner, Miroš - Fischer, Ondřej
Experimental analysis of aerodynamic stability of stress-ribbon footbridges.
Wind and Structures. Roč. 2, č. 2 (1999), s. 95-104. ISSN 1226-6116. E-ISSN 1598-6225
Institucionální podpora: RVO:68378297
Klíčová slova: footbridges * aerodynamic stability * bending-torsional vibrations * wind-excited vibrations * wind-tunnel in civil engineering
Kód oboru RIV: JM - Inženýrské stavitelství
http://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=KJKHCF_1999_v2n2_95&ordernum=5

The dynamic properties of one-span or multi-span reinforced concrete footbridges of catenary form (see e.g., Fig. 1) include the very low fundamental natural frequency, usually near the step-frequency of pedestrians, and the low damping of bending vibrations. The paper sumarizes the results of model as well as full-scale measurements with particular reference to the influence of torsional rigidity of the stress-ribbon on the magnitude of aerodynamic response, the results of measurements on footbridges of catenary form being completed by results obtained on footbridges of some other types. Additionally the influence of the local broadening of the bridge deck on the bridge response was tested. Starting from these results the criterion has been derived for the decision, whether the flutter analysis is necessary for the design of the footbridge.
Trvalý link: http://hdl.handle.net/11104/0253937