- Tytuł:
- Point Protection of Primary Beams of Steel Grillages Against Lateral Torsional Buckling
- Autorzy:
-
Piotrowski, Rafał
Siedlecka, Monika - Powiązania:
- https://bibliotekanauki.pl/articles/102480.pdf
- Data publikacji:
- 2020
- Wydawca:
- Stowarzyszenie Inżynierów i Techników Mechaników Polskich
- Tematy:
-
critical moment of lateral torsional buckling of beams
steel grillage
point protection
krytyczny moment poprzecznego wyboczenia skrętnego belek
stalowy ruszt
ochrona punktu - Opis:
- The paper deals with the analysis of lateral torsional buckling (LTB) of steel beams that are components of grillages. Such structures are constructed from primary substring beams and secondary coupling beams. One of the functions performed by secondary beams in grillages is point protection of primary beams against overall stability failure. Based on the LTB analysis of primary beams, the condition specified in the code PN-EN 1993-1-1 (EC-3) was verified. The condition concerns the maximum spacing of point lateral bracings that stabilise compression flanges of beams. Critical moments of LTB for those beams were determined employing two methods. The first method involved the use of equivalent (simplified) loading diagram and the author-developed analytic formula. The other method employed LTBeamN and Abaqus (FEM) software, in which the whole beam was modelled together with bracings. Beam loading diagrams most frequently used in engineering practice were taken into account. Coefficients of LTB were determined in accordance with EC-3. A good congruence of results was obtained, which confirmed the correctness of the equivalent (simplified) beam loading diagram. The condition specified in the code PN-EN 1993-1-1 (EC-3) was also confirmed.
- Źródło:
-
Advances in Science and Technology. Research Journal; 2020, 14, 3; 1-8
2299-8624 - Pojawia się w:
- Advances in Science and Technology. Research Journal
- Dostawca treści:
- Biblioteka Nauki
Artykuł