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Chapter: Civil - Mechanics Of Solids - Deflection Of Beams

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Rankine formula for columns

One of the most widely known formulae for the design and investigation of columns employed in engineering practice:

Rankine formula for columns

 

 

 

Rankine's formula

 

One of the most widely known formulae for the design and investigation of columns employed in engineering practice:

 

where

 

 

= allowable unit stress for the column

 

 

= allowable unit stress for short columns

 

 

= a constant

 

 

= length

 

 

radius of gyration in reference to an axis normal to a plane in which flexure takes place.

 

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