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CONFERENCE PROCEEDINGS
7th INTERNATIONAL CONFERENCE
CONTEMPORARY ACHIEVEMENTS IN CIVIL ENGINEERING 2019 , 2019.y., pp. 371-379


OVERVIEW OF THE METHODS FOR CALCULATING ELASTIC CRITICAL LTB MOMENT
 
DOI: 10.14415/konferencijaGFS2019.034
UDC: 539.385:519.6
CC-BY-SA 4.0 license
Author : Subotić, Petar; Lučić, Duško
 
 Summary:
 For designing unrestrained steel beams in accordance with EN 1993-1-1 it is necessary to know the value of elastic critical lateral torsional buckling moment . The aim of this paper is to present different methods for calculating elastic critical lateral torsional buckling moment and analysed them. Methods proposed by Trahair, Clark and Hill and Balaz and Kolekova are discussed and examined through numerical example. The obtained results have shown no significant differences between analysed methods in the case of simple beam under uniform distributed load and concentrated point load at mid span. Further more detailed investigation is needed for more complex cases.
 
 Keywords:
 Elastic critical LTB moment, calculation methods, numerical example