CHAPTER 7

Struts and Columns

Chapter Objectives

  1. Identify the correct formula to be used for the given problem, and ascertain whether the member to be designed is a short, medium, or a long column.

  2. Choose the suitable value of the ultimate compressive strength of the material, and the factor of safety, to design a column section for a short column.

  3. For a very long column, take the Young's modulus of the material and equivalent length of the column, and determine moment of inertia of section for a given value of axial compressive load divided by FOS. From this minimum I, calculate section dimensions.

  4. For moderately long columns, select Rankine's constants for the given material along with the end conditions. Determine safe load for a given ...

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