Počet záznamů: 1  

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

  1. 1.
    0431463 - ÚTAM 2015 RIV TR eng O - Ostatní výsledky
    Náprstek, Jiří - Fischer, Cyril
    Auto-parametric multi-modal vibration of a continuous slender structure due to seismic excitation.
    Proceedings of the second European conference on earthquake engineering and seismology. Istanbul, 2014. s. 235
    Grant CEP: GA ČR(CZ) GC13-34405J
    Institucionální podpora: RVO:68378297
    Klíčová slova: non-linear dynamic effects * slender structures * seismic excitation
    Kód oboru RIV: JM - Inženýrské stavitelství
    http://www.eaee.org/Media/Default/2ECCES/2ecces_eaee/126.pdf

    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 of high 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.
    Trvalý link: http://hdl.handle.net/11104/0236051

     
     
Počet záznamů: 1  

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