Auto-Parametric Stability And Post-Critical Behavior of a Non-Linear Continuous System Under Random Seismic Excitation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F12%3A00381346" target="_blank" >RIV/68378297:_____/12:00381346 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Auto-Parametric Stability And Post-Critical Behavior of a Non-Linear Continuous System Under Random Seismic Excitation
Original language description
Easily deformable tall structures exposed to a strong vertical component of an earthquake excitation are endangered by auto-parametric resonance effect. This non-linear dynamic process in a post-critical regime caused heavy damages or collapses of many towers, bridges and other structures in the epicenter area. Vertical and horizontal response components are independent on the linear level. However their interaction takes place due to non-linear terms in post-critical regime. Two different types of thepost-critical regimes are presented: (i) post-critical state with possible recovery; (ii) exponentially rising horizontal response leading to a collapse, when the irreversibility limit is overstepped. A special attention is paid to system parameters sensitivity to reaching the semi-trivial solution stability as well as the limit of the irreversibility. Solution method combining analytical and numerical approaches is developed and used.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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