Abstract This paper reports the results of parametric analyses for the lateral torsional buckling strengths of singly symmetric stepped Ibeams with constant depth subjected to general loading conditions. Simply supported beams with varying monosymmetric ratios from 0.1 to 0.9 were analyzed using a finite element program ABAQUS and a regression program MINITAB. Stepped length ratios, flange width ratios and flange thickness ratios were taken from the geometry of real bridges. The beams were first subjected to pure bending to take account for the effect of steps in beams. And then ten-different loading conditions were applied to the beams to study the effect of varied moment along the unbraced span. Design solutions were suggested based on the results of the parametric analyses. The use of equations for beams with inflection point of zero and one is recommended for stepped beams with monosymmetric ratios between 0.1 and 0.9. In specialty, the use of new equation for beams with inflection point of two is recommended for doubly stepped beams with monosymmetric ratios between 0.1 and 0.9 and for singly stepped beams with monosymmetric ratios between 0.1 and 0.7.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Elastic lateral torsional buckling strength of monosymmetric stepped I-beams


    Contributors:

    Published in:

    Publication date :

    2012-06-29


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Elastic lateral torsional buckling strength of monosymmetric stepped I-beams

    Gelera, Kathleen Mae / Park, Jong Sup | Online Contents | 2012


    Flexural-torsional buckling of stepped beams subjected to pure bending

    Park, Jong Sup / Kang, Young-Jong | Springer Verlag | 2004



    Lateral Torsional Buckling Test

    N. N. | TIB AV-Portal | 2017

    Free access