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Structural Engineering and Mechanics
  Volume 10, Number 5, November 2000 , pages 479-489
DOI: https://doi.org/10.12989/sem.2000.10.5.479
 


Effects of shear deformation on the effective length of tapered columns with I-section for steel portal frames
Li GQ, Li JJ

 
Abstract
    Based on the stiffness equation of the tapered beam element involving the effects of axial force and shear deformation, numerical investigations are carried out on elastic instability for web-linearly tapered columns with I-section of steel portal frames. Effects of shear deformation on the effective length of the tapered columns with I-section are studied. An efficient approach for determining the effective length of the tapered portal frame columns considering effects of shear deformation is proposed.
 
Key Words
    tapered column with I-section, effective length, finite element, shear deformation, steel portal frame
 
Address
Li GQ, Tongji Univ, Dept Bldg & Struct Engn, Shanghai 200092, Peoples R China
Tongji Univ, Dept Bldg & Struct Engn, Shanghai 200092, Peoples R China
 

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