Lateral buckling formula of stepped beams with continuous bracing

Jong S. Park, J. Michael Stallings, Young J. Kang

    Research output: Contribution to conferencePaperpeer-review

    Abstract

    Lateral-torsional buckling moment resistances of I-shaped stepped beams with continuous lateral top-flange bracing were investigated. Stepped beam factors and moment gradient correction factors were used to develop new lateral buckling formula for beam designs. From the investigation of finite element analysis, new lateral buckling formula of beams with singly or doubly stepped member changes and with continuous lateral top-flange bracing subjected to general loading were developed. The new design equation includes the length-to-height ratio factor to account for the increase of lateral-torsional buckling moment resistance as the increase of length-to-height ratio of stepped beams. The calculation examples for obtaining lateral-torsional buckling moment resistance using the new design equation indicate that engineers should easily determine the buckling capacity of the stepped beam.

    Original languageEnglish
    Pages315-322
    Number of pages8
    Publication statusPublished - 2006
    EventInternational Colloquium on Stability and Ductility of Steel Structures, SDSS 2006 - Lisbon, Portugal
    Duration: 2006 Sept 62006 Sept 8

    Other

    OtherInternational Colloquium on Stability and Ductility of Steel Structures, SDSS 2006
    Country/TerritoryPortugal
    CityLisbon
    Period06/9/606/9/8

    Keywords

    • Beam design
    • Buckling
    • Stability
    • Stepped beam

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Safety, Risk, Reliability and Quality
    • Building and Construction

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