Engineering Mechanics

Proceedings Vol. 7 (2001)

INŽENÝRSKÁ MECHANIKA 2001

ENGINEERING MECHANICS 2001

Copyright © 2001 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Prague

 

Melcer J., Papán D.
pages 174 - +4p, full text

The paper Dynamic analysis of a bridge structure is dedicated to the analysis of basic dynamic characteristics of the bridge structure as natural frequencies and natural modes. Such characteristics define the dynamical individuality of the structure. The brief description of the structure is introduced. The computing model is created as one dimensional beam spaced structure. The effect of intermediate supports is modelled by the use of linear springs. The Finite Element Method is used for calculation. UvOD Rekonstrukcia cestnej siete v Slovenskej republike si vyzaduj e stavbu norych mostnych objektov. Vzhl'adom na skutocnost', ze mostmi konstrukcia je vystavemi v)'raznym dynamickYm ucinkom, predstavuje dynamicka analyza organickU sucast' komplexneho posudenia mostnej konstrukcie. Vlastne frekvencie a tvary vlastneho kmitania definuju jednoznacne dynamickU individualitu konstrukcie a umoznuju predvidat' jej spravanie pri urcitom konkretnom dynamickom zat'aZeni. Zovseobecnovanie poznatkov z dynamickYch analyz prispieva k rideniu otazok unavy, zivotnosti a spol'ahlivosti a umoznuje hlbSiu analyzu rizikorych stavov mostnej konstrukcie.

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