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Numerical Analysis of a Steel Frame Building with Soft-storey Failure under Ground Motion Excitation
Abstrakt
The aim of this paper is to show the results of a numerical analysis focused on the behaviour of multi-storey steel frame building that suffers from a soft-storey failure under ground motion excitation. A numerical model of the structure was created in FEM computer software and was exposed to an impact that would have been generated after a soft-storey failure due to falling of the upper floors. During the analysis, the whole structure was exposed to ground motion excitation and different moments have been chosen for the impact so as to estimate the most critical moment for the structure. The results of the study show that not only the value of the impact force is crucial but also the moment when the impact occurs. This is due to the fact that horizontal deflection of the supporting members (steel columns) varies during the time of the excitation. It has been observed that the most critical moment for the building for being subjected to a vertical impact is when the horizontal deflection is close to its peak.
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Informacje szczegółowe
- Kategoria:
- Aktywność konferencyjna
- Typ:
- materiały konferencyjne indeksowane w Web of Science
- Opublikowano w:
-
Key Engineering Materials
nr 525-526,
strony 481 - 484,
ISSN: 1662-9795 - Tytuł wydania:
- Key Engineering Materials. strony 481 - 484
- Język:
- angielski
- Rok wydania:
- 2012
- Opis bibliograficzny:
- Migda W., Jankowski R..: Numerical Analysis of a Steel Frame Building with Soft-storey Failure under Ground Motion Excitation, W: Key Engineering Materials., 2012, ,.
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 82 razy