Proposed LRFD Specifications for Noncomposite Steel Box-Section Members

This report addresses the development of updated and unified AASHTO LRFD Specification provisions for the design of noncomposite steel box-section members. The applications include but are not necessarily limited to truss members, arch ribs and ties, rigid-frame members, columns, steel bent caps, edge girders, floor beams and steel tower legs. The types of members include rectangular or square hollow structural sections (HSS), welded or bolted built-up sections with nonslender or slender plates not containing any intermediate stiffeners, welded or bolted built-up sections with a single longitudinal stiffener within the web and/or compression flange, and relatively large sections composed of thin plates with multiple transverse and longitudinal stiffeners. The recommended provisions address the resistance of these types of members under various combinations of axial tension or compression, uniaxial or biaxial bending moment, and shear due to flexure and/or torsion.

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  • Corporate Authors:


    11 Stanwix Street, Suite 800
    Pittsburgh, PA  United States  15222

    Federal Highway Administration

    Office of Bridges and Structures
    1200 New Jersey Avenue, SE
    Washington, DC  United States 
  • Authors:
    • White, Donald
    • Lokhande, Ajinkya
    • Ream, Anthony
    • King, Charles
    • Grubb, Michael
  • Publication Date: 2019-7


  • English

Media Info

  • Media Type: Web
  • Edition: Final Report
  • Features: Figures; References; Tables;
  • Pagination: 373p

Subject/Index Terms

Filing Info

  • Accession Number: 01717204
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-HIF-19-063
  • Contract Numbers: DTFH6114D00049
  • Files: TRIS, ATRI, USDOT
  • Created Date: Sep 18 2019 5:14PM