Auto-parametric multi-modal vibration of a continuous slender structure due to seismic excitation
The result's identifiers
Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Auto-parametric multi-modal vibration of a continuous slender structure due to seismic excitation
Original language description
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.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
JM - Structural engineering
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GC13-34405J" target="_blank" >GC13-34405J: Stochastic vibration of beam structures due to moving random loads and wind actions.</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů