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0287 The One Third Rule for Column Stability - Floors - Columns
 
0287 The One Third Rule for Column Stability - Floors - Columns -

Image Text: Stable > middle third of the column > center of gravity > force > Borderline > force > Unstable (the column's center of gravity falls outside the middle third) > Procedure > measure the amount that the column is out of plumb > make a SCALE diagram - drawing a line representing the force of gravity through the center of the column > if this line does not lie within the center 1/3 of the column, the column is unstable

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