Exact solutions for free vibrations of a steel-concrete bridge

• Autorzy: Longa L. D. , Morassi A. , Rotaris A.

Warianty tytułu

PL

Dokładne rozwiązania zagadnienia drgań swobodnych konstrukcji mostu stalowo-betonowego

• Języki publikacji: EN

Abstrakty

EN

This paper deals with a class of free vibrations for a two-span, two-lane steel-concrete bridge. The deck structure is modeled as a thin, homogeneous, orthotropic plate stiffened by beams running along the longitudinal direction of the bridge. The method of separation of variables is used to find exact solutions for a class of free vibrations of the structure. A comparison between analytical and experimental natural frequencies and vibration modes of the bridge is presented and discussed.

PL

Praca dotyczy analizy pewnej klasy drgań swobodnych dwuprzęsłowego, dwujezdniowego mostu stalowo-betonowego. Przęsło zamodelowano jako cienką, jednorodną, ortotropową płytę usztywnioną belkami zamocowanymi w kierunku wzdłużnym mostu. Do znalezienia dokładnych rozwiązań problemu drgań swobodnych modelu zastosowano metodę rozdzielenia zmiennych. Na koniec zaprezentowano i przedyskutowano porównanie częstości własnych i postaci drgań własnych modelu z wynikami zarejestrowanymi na rzeczywistej konstrukcji.

Słowa kluczowe

EN

vibrations; bridges; orthotropic plate; eigenvalue problem; exact solutions

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2011
• Tom: Vol. 49 nr 3
• Strony: 705--705
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Longa L. D.

autor

Morassi A.

autor

Rotaris A.

• University of Udine, Department of Civil Engineering and Architecture, Udine, Italy,

Bibliografia

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