Auto-parametric multi-modal vibration of a continuous slender structure due to seismic excitation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F14%3A00431463" target="_blank" >RIV/68378297:_____/14:00431463 - 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

Auto-parametric multi-modal vibration of a continuous slender structure due to seismic excitation

Popis výsledku v původním jazyce

Non-linear dynamic effects are the most dangerous processes endangering structures during a seismic attack. Among them, auto-parametric non-linear vibration in state of post-critical auto-parametric resonance can lead to collapse particularly in case ofhigh slender systems or large dynamically sensitive structures. The main cause of these effects is a strong vertical component of an earthquake excitation in epicentre area. In sub-critical linear regime vertical and horizontal response components are independent and therefore no horizontal response component is observed in such case. If the amplitude of a vertical excitation in a structure foundation exceeds a certain limit, a vertical response component loses dynamic stability; dominant horizontal response component arises and can lead to failure of the structure.

Název v anglickém jazyce

Auto-parametric multi-modal vibration of a continuous slender structure due to seismic excitation

Popis výsledku anglicky

Non-linear dynamic effects are the most dangerous processes endangering structures during a seismic attack. Among them, auto-parametric non-linear vibration in state of post-critical auto-parametric resonance can lead to collapse particularly in case ofhigh slender systems or large dynamically sensitive structures. The main cause of these effects is a strong vertical component of an earthquake excitation in epicentre area. In sub-critical linear regime vertical and horizontal response components are independent and therefore no horizontal response component is observed in such case. If the amplitude of a vertical excitation in a structure foundation exceeds a certain limit, a vertical response component loses dynamic stability; dominant horizontal response component arises and can lead to failure of the structure.

Druh

O - Ostatní výsledky

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

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Projekt

<a href="/cs/project/GC13-34405J" target="_blank" >GC13-34405J: Náhodné kmitání prutových konstrukcí způsobené kombinací pohyblivého zatížení a větru.</a><br>

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