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Overview of the Development of Design Recommendations for Eccentrically Braced Frame Links with Built-Up Sections

Auteur(s):

Médium: article de revue
Langue(s): anglais
Publié dans: Engineering Journal, , n. 1, v. 50
Page(s): 21-32
DOI: 10.62913/engj.v50i1.1039
Abstrait:

Among the new additions to the 2010 AISC Seismic Provisions are design requirements for eccentrically braced frame links with built-up box sections. Such links do not require lateral bracing in many cases because built-up box shapes have superior lateral torsional stability relative to wide flange sections. The 2010 Seismic Provisions include requirements for built-up box link flange width-to-thickness ratio and other important design considerations. However, the limits on web width-to-thickness ratio default to those used for built-up box beams or columns and are inadequate for links with large inelastic shear and compression strains. Such limits are important for preventing web buckling under shear and/or flexural compression. This paper presents an overview of research on the design and behavior of links with built-up box sections, including the development of recommendations for web width-to-thickness limits and corresponding web stiffener spacing requirements and flange width-to-thickness limits for these link sections. The highlighted research program included derivation of design requirements based on plate buckling considerations; a full-scale, single-story eccentrically braced frame test; a parametric study on the impact of link cross-sectional parameters on link inelastic rotation capacity; and a series of large-scale tests on isolated links.

Structurae ne peut pas vous offrir cette publication en texte intégral pour l'instant. Le texte intégral est accessible chez l'éditeur. DOI: 10.62913/engj.v50i1.1039.
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  • Reference-ID
    10782458
  • Publié(e) le:
    17.05.2024
  • Modifié(e) le:
    17.05.2024
 
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