Vibration of railway arch-bridges shaken by vertical support motions

Kód výsledku v IS VaVaI

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Nalezeny alternativní kódy

RIV/68378297:_____/09:00342825

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Vibration of railway arch-bridges shaken by vertical support motions

Popis výsledku v původním jazyce

The aim of this paper is to investigate the vibration of an arch bridge under the simultaneous action of moving train-loadings and vertical support excitations. The arch bridge is modeled as a flat-rise parabolic arch with constant sectional properties along the horizontal axis of span, and the train loadings over it as a sequence of identical lumped loads with constant intervals. Since this study deals with the dynamic response of a bridge with non-homogeneous time-dependent boundary conditions, quasi-static decomposition method is employed to separate the total deflection response of the arch bridge into quasi-static deflection and the dynamic component of deformation. Then one can obtain the closed form solution of quasi-static deflection for the arch bridge shaken by vertical support excitations in an analytical manner.

Název v anglickém jazyce

Vibration of railway arch-bridges shaken by vertical support motions

Popis výsledku anglicky

The aim of this paper is to investigate the vibration of an arch bridge under the simultaneous action of moving train-loadings and vertical support excitations. The arch bridge is modeled as a flat-rise parabolic arch with constant sectional properties along the horizontal axis of span, and the train loadings over it as a sequence of identical lumped loads with constant intervals. Since this study deals with the dynamic response of a bridge with non-homogeneous time-dependent boundary conditions, quasi-static decomposition method is employed to separate the total deflection response of the arch bridge into quasi-static deflection and the dynamic component of deformation. Then one can obtain the closed form solution of quasi-static deflection for the arch bridge shaken by vertical support excitations in an analytical manner.

Druh

D - Stať ve sborníku

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

ENVIRONMENTAL VIBRATIONS: PREDICTION, MONITORING, MITIGATION AND EVALUATION, VOLS I AND II

ISBN

978-7-03-025765-9

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

SCIENCE PRESS BEIJING, 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100707, PEOPLES R CHINA

Místo vydání

BEIJING

Místo konání akce

Beijing

Datum konání akce

28. 10. 2009

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000275622200208