Interaction dynamics of a high-speed train moving on multi-span railway bridges with support settlements

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Interaction dynamics of a high-speed train moving on multi-span railway bridges with support settlements

Popis výsledku v původním jazyce

After construction of rail bridges, differential support settlement at bridge foundations is one of the key issues being considered for running safety of trains and operation of railways. In this paper, the influence of ground settlement on dynamic interactions of train-bridge system will be studied. The train is simulated as a sequence of identical sprung mass units with equal intervals and the bridge system as a series of simple beams with identical properties. To resolve the train-induced vibrationsof a beam structure with support settlements, the total beam response is decomposed into two parts: the static response due to vertical support settlement and the dynamic component caused by inertia effect of beam vibration. An exact solution for staticdisplacement is presented by exerting the support displacements on the beam statically. Thus the remaining dynamic response of the vehicle/bridge coupling system can be computed by conventional vehicle-bridge interaction dynamic method. F

Název v anglickém jazyce

Interaction dynamics of a high-speed train moving on multi-span railway bridges with support settlements

Popis výsledku anglicky

After construction of rail bridges, differential support settlement at bridge foundations is one of the key issues being considered for running safety of trains and operation of railways. In this paper, the influence of ground settlement on dynamic interactions of train-bridge system will be studied. The train is simulated as a sequence of identical sprung mass units with equal intervals and the bridge system as a series of simple beams with identical properties. To resolve the train-induced vibrationsof a beam structure with support settlements, the total beam response is decomposed into two parts: the static response due to vertical support settlement and the dynamic component caused by inertia effect of beam vibration. An exact solution for staticdisplacement is presented by exerting the support displacements on the beam statically. Thus the remaining dynamic response of the vehicle/bridge coupling system can be computed by conventional vehicle-bridge interaction dynamic method. F

Druh

D - Stať ve sborníku

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of International conference on noise and vibration engineering (ISMA2014) and International conference on uncertainty in structural dynamics (USD2014)

ISBN

978-90-73802-91-9

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

955-963

Název nakladatele

Katholieke University Leuven

Místo vydání

Leuven

Místo konání akce

Leuven

Datum konání akce

15. 9. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000352201001015