Design Criteria for H-Columns under Biaxial Loading

by Negussie Tebedge, Engr.; Ctr. Technique Industiel de la Construction Metallique, Paris, France,
Wai-Fah Chen, (M.ASCE), Assoc. Prof. of Civ. Engrg.; Fritz Engrg. Lab., Lehigh Univ., Bethlehem, PA,

Serial Information: Journal of the Structural Division, 1974, Vol. 100, Issue 3, Pg. 579-598

Document Type: Journal Paper


Several design criteria for isolated, simply supported steel H-columns subjected to compression and combined with biaxial bending are examined. The load carrying capacity of the columns is presented in terms of interaction surfaces. Three classes of problems are considered: short columns, long columns under symmetrical loading, and long columns under unsymmetrical loading conditions. The interaction surfaces are given in forms of tables suitable for analysis and design. Simple approximate formulas are also developed as an alternative method for the designer. The results are compared with the current Column Research Council design formulas.

Subject Headings: Biaxial loads | Load factors | Columns | Load bearing capacity | Compression | Biaxial strength | Bending (structural) | Symmetry

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