The response of underground structures to seismic loading

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00337810" target="_blank" >RIV/68407700:21110/19:00337810 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The response of underground structures to seismic loading

Popis výsledku v původním jazyce

The paper focuses on the evaluation of the effect of earthquake on underground structures using the finite element method. The dynamic effects can be addressed either by a fully dynamic approach or using a pseudo-static calculation. Fully dynamic calculations are based on a direct application of recorded accelerations to the actual computational model of the tunnel. In the pseudo-static analysis the effect of earthquake is transformed into an equivalent shear strain constant within individual soil layers. These are introduced in the form of displacements prescribed along the vertical boundaries of the FEM model in a usual static manner. This also implies the basic assumption of the geometry and material parameters of the geological profile not varying in the horizontal direction. In both cases it is generally accepted that vertical propagation of the pressure and shear waves can be described as a timedependent 1D analysis of so called free-field column. Example comparing both approaches together with popular analytical methods is presented to highlight their advantages as well as drawbacks.

Název v anglickém jazyce

The response of underground structures to seismic loading

Popis výsledku anglicky

The paper focuses on the evaluation of the effect of earthquake on underground structures using the finite element method. The dynamic effects can be addressed either by a fully dynamic approach or using a pseudo-static calculation. Fully dynamic calculations are based on a direct application of recorded accelerations to the actual computational model of the tunnel. In the pseudo-static analysis the effect of earthquake is transformed into an equivalent shear strain constant within individual soil layers. These are introduced in the form of displacements prescribed along the vertical boundaries of the FEM model in a usual static manner. This also implies the basic assumption of the geometry and material parameters of the geological profile not varying in the horizontal direction. In both cases it is generally accepted that vertical propagation of the pressure and shear waves can be described as a timedependent 1D analysis of so called free-field column. Example comparing both approaches together with popular analytical methods is presented to highlight their advantages as well as drawbacks.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/TE01020168" target="_blank" >TE01020168: Centrum pro efektivní a udržitelnou dopravní infrastrukturu (CESTI)</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

Tunnels and Underground Cities. Engineering and Innovation Meet Archaeology, Architecture and Art: Proceedings of the WTC 2019 ITA-AITES World Tunnel Congress (WTC 2019), May 3-9, 2019, Naples, Italy

ISBN

9781138388659

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

6081-6090

Název nakladatele

CRC Press

Místo vydání

London

Místo konání akce

Naples

Datum konání akce

3. 5. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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