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[80250] Artykuł: Lateral-torsional buckling of beams elastically restrained and loaded with concentrated moments at supportsCzasopismo: 3rd World Multidisciplinary Civil Engineering, Architecture, Urban Planning Symposium (wmcaus 2018) Tom: 471, Zeszyt: 052064, Strony: 1-10ISSN: 1757-8981 Wydawca: IOP PUBLISHING LTD, DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND Opublikowano: Luty 2019 Seria wydawnicza: IOP Conference Series-Materials Science and Engineering Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Materiały z konferencji międzynarodowej (zarejestrowane w Web of Science) Punkty MNiSW: 0 Klasyfikacja Web of Science: Proceedings Paper Pełny tekst DOI Web of Science |
The study presents the results of theoretical investigations into lateral-torsional buckling (LTB) of free supported bi-symetric I-beams, elastically restrained against warping at supports. Beams with loaded by moments focused at supports (with a variable the ratio of moments) and with different types of ribs were taken into account. To determine the critical moment (Mcr ) of LTB of beams, the MLTB,EL program [7] and proposed in this article formula were used. The obtained results were compared with the results received from approximation formulas [6] and with FEM (LTBeam, Abaqus).