Sunday, August 19, 2012

Design of non Slender Columns

  1. Size the column using initial design
  2. Calculate axial load and bending moment using appropriate analysis method (NEd, Mtop and Mbottom).
  3. Find the effective length (lo).
  4. Find the first order moments (Mo1 and Mo2)
  5. Find the slenderness ( λ = lo/i, λ = 3.46*lo/h for rectangular column and              λ = 4*lo/d for circular column, h and d are the overall depth and column diameter respectively )
  6. Find the slenderness limit λlim 
  7. If λ  λlim column is not slender.
  8.  Then MEd = Mo2
  9. Find As for  NEd and  MEd

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