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Dynamic analysis of the impact of the wind spectrum according to the theory of Davenport for lightweight structures of the roof in sports hall Czyzyna in Cracow.
Abstrakt
The main aim of this analysis is to characterize numerical simulations connected with modeling dynamic influence of wind on the lightweight structures of the roof in sports hall – “Czyżyna”. This hall is built in Cracow. The article also involves the proposals of the solutions connected with dynamic influence of the wind – Davenport’s method has been used. These proposals have not been taken into consideration at the detailed engineering stage. Moreover, the article presents the problem of usage of the sway braces between main girders which consist of ropes Pfeifer 20. It is because from statical burdens point of view, the Pfeifer removal does not cause rise in stresses, forces and displacements in other elements. The generation of the wind history by Davenport has two steps. The first step (spectra generation) will create form the energy spectra based on an individual Fourier − spectrum for this load case (a discrete Fourier−Integral) for all turbulence components of all nodal points of the structure. The second step (history generation) will then create the discrete wind history via a discrete Fourier−Retransformation. The spectras generated once may be used for different wind histories: e.g. variant durations of wind, variant time steps or the selection of lower or higher frequencies of turbulence.
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Informacje szczegółowe
- Kategoria:
- Aktywność konferencyjna
- Typ:
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Tytuł wydania:
- Lightwegiht Structures in Civil Engineering LSCE 2013 strony 1 - 8
- Język:
- angielski
- Rok wydania:
- 2013
- Opis bibliograficzny:
- Grębowski K.: Dynamic analysis of the impact of the wind spectrum according to the theory of Davenport for lightweight structures of the roof in sports hall Czyzyna in Cracow.// Lightwegiht Structures in Civil Engineering LSCE 2013/ : , 2013, s.1-8
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 88 razy