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    Wyświetlanie 1-3 z 3
    Tytuł:
    Projekt konstrukcji stalowej Muzeum Sztuki Nowoczesnej
    The Museum of Modern Art steel structure design
    Autorzy:
    Kaczmarczyk, Anna Dominika
    Król, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/1860517.pdf
    Data publikacji:
    2021
    Wydawca:
    Polski Związek Inżynierów i Techników Budownictwa
    Tematy:
    Muzeum Sztuki Nowoczesnej w Warszawie
    projekt
    konstrukcja stalowa
    konstrukcja pierścieniowa
    torus
    rama kratowa
    obciążenie wiatrem
    ciśnienie wiatru
    obciążenie śniegiem
    symulacja komputerowa
    Museum of Modern Art in Warsaw
    design
    steel structure
    ring-shaped structure
    truss frame
    wind load
    wind pressure
    snow load
    computer simulation
    Opis:
    W artykule zaprezentowano wybrane zagadnienia wchodzące w skład projektu konstrukcji stalowej na planie pierścienia o unikalnej geometrii, którą opracowano przy założeniu jak największej powtarzalności rozwiązań. Przedstawiony został sposób postępowania przy ustalaniu obciążenia wiatrem i śniegiem dla kształtu obiektu, którego nie przewidują procedury normowe. Scharakteryzowano również przyjęte założenia i parametry optymalizacji przy wymiarowaniu konstrukcji oraz metodykę obliczania węzłów, których pręty leżą w różnych i nieprostopadłych do siebie płaszczyznach.
    The article contains selected issues included in the design of a steel structure on the plan of a ring with a unique geometry, which was developed with the assumption of the highest repeatability of solutions. The procedure for determining the wind and snow load for the shape of an object, which is not provided by standard procedures, was presented. The adopted assumptions and optimisation parameters for designing the structure as well as the methodology of calculating nodes with bars located in different and non-perpendicular planes were also characterized.
    Źródło:
    Przegląd Budowlany; 2021, 92, 5-6; 60-70
    0033-2038
    Pojawia się w:
    Przegląd Budowlany
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Experimentally assisted modelling of the behaviour of steel angle brace
    Autorzy:
    Barszcz, A. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/231314.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    rama stalowa
    kratownica usztywniająca
    zastrzał
    połączenie typu widelec
    połączenie spawane
    połączenie śrubowe
    charakterystyka siła-odkształcenie
    steel frame
    truss bracing
    angle brace
    fork connection
    welded connection
    bolted connection
    force-deformation characteristitic
    Opis:
    Steel frame wind bracing systems are usually made of hot rolled profiles connected to frame elements directly or through a gusset plate. The behaviour of angle bracing members is generally complex since controlled by tension or compression, bending and torsion. The common practice is to transform the problem of complex behaviour into the buckling strength of a truss member. This paper deals with an analytical formulation of the force-deformation characteristic of a single angle brace subjected to compression. A strut model takes into consideration the effect of brace end connections and softening effect of its force-deformation characteristic. Two different boundary conditions, typical for engineering practice, are dealt with. Experimental program of testing the behaviour of angle brace in portal sub-frame specimens is described. Results of experimental investigations are presented. They are used for the validation of developed model. Conclusions are formulated with reference to the application of validated brace model in the analysis of braced steel frameworks.
    Źródło:
    Archives of Civil Engineering; 2014, 60, 1; 3-39
    1230-2945
    Pojawia się w:
    Archives of Civil Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Średniowieczne konstrukcje ciesielskie południowego skrzydła zamku kapituły warmińskiej w Olsztynie. Przyczynek do historii zamku
    Medieval carpentry structures of the southern wing of the Warmia Chapter Castle in Olsztyn. Contribution to the history of the castle
    Autorzy:
    Skarżyńska-Wawrykiewicz, Magdalena
    Wawrykiewicz, Leszek
    Powiązania:
    https://bibliotekanauki.pl/articles/538693.pdf
    Data publikacji:
    2015
    Wydawca:
    Narodowy Instytut Dziedzictwa
    Tematy:
    Prusy
    Warmia
    architektura gotycka
    zamek w Olsztynie
    badania architektoniczne
    ciesielstwo
    konstrukcja szkieletowa
    szachulec
    więźby dachowe
    Prussia
    gothic architecture
    Olsztyn castle
    architectural studies
    carpentry
    frame structure
    wattle and daub
    roof truss
    Opis:
    The article presents the results of an analysis carried out during the renovation of a roof of the southern wing of the Warmia Chapter in Olsztyn in the years 2013-2014. The renovation of the castle wing roof provided us with the possibility to freely access normally inaccessible places and an opportunity to analyse the form and rules of carpentry structures found in this part of the castle, that is, a roof truss and frame walls from around 1429, including the stock-taking of carpentry joints that are not visible after the structure assembly. Since it was impossible to carry out a conservation analysis of carpentry structures in isolation from the context they are situated in, the research conclusions often have a broader scope and concern the history of the entire southern wing. The example of the Olsztyn castle presented in the article shows a significant role of analyses of historical carpentry structures in chronological order and studies of architecture and construction monuments. Historical and architectural studies of historic carpentry structures, covering a typological analysis of the structure, along with an analysis of carpentry joints, assembly signs, traces of processing and other traces and distinguishing marks, e.g inscriptions, as well as comprehensive archival studies allow chronological breakdown of the sole carpentry structure and determination of relative chronology and stratification of the entire historic building, usually subject to conversions and reconstructions over centuries. As we can see on an example of the discussed monument, studies of historical carpentry structures can often contribute to targeting architectural studies of the entire object, representing a point of departure for stratification of the entire building in many cases. Researchers have not paid much attention to wooden structures of the Olsztyn Castle. As we can speculate, a frame structure of the southern wing yard wall with a secondary masonry work could have been beyond the awareness of castle users and researchers. The level of complexity of frame structures of walls erected along with mezzanine floors and a structure of roof truss attests to the fact that the wooden structure of the granary was erected one of the highly qualified carpentry workshops, established and functioning in the Teutonic Knights state in Prussia in the 14th and 15th centuries under the influence of settlers coming from the West. Broader studies of the typology of medieval frame structures on the territory of former Prussia, especially those applied in secular construction, are seriously hindered due to the low number of preserved fachwerk walls to our times. Therefore, we should all the more indicate the need for preparing detailed documentations and analysing all relics of ancient frame structures, even those – or perhaps especially those – hidden behind subsequent masonry work, which was attempted at demonstrating on the basis of an analysis of medieval carpentry structures of a former granary in the southern wing of the Olsztyn fortress. It is not for the first time that it turns out how important the performance of scientific research during the construction investments carried out in an architecture monument is for its preservation. Not only does it allow us to become familiar with its structural transformations and supplement previous knowledge, but also to verify previous findings. Such simultaneous continuation of scientific research can often influence the construction process itself, allowing potential corrections of initial investment assumptions for the benefit of the monument’s value. As regards the roof of the southern wing of the Olsztyn Castle, the research influenced, among others, the scope and method of conducting carpentry works and the type of reconstructed roof covering. No pre-investment architectural studies carried out at an object that is continuously used cannot contribute to the collection of such a large amount of information about a given monument, as regular, careful supervision exercised by persons with appropriate qualifications, carried out during renovation works.
    Źródło:
    Ochrona Zabytków; 2015, 2; 65-92
    0029-8247
    Pojawia się w:
    Ochrona Zabytków
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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