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RE: drift

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Drift for rigid frames consists of

     1. Column moment drift due to column bending
     2. Girder moment drift due to girder bending
     3. Joint drift due to joint rotation
     4. Column chord drift due to axial deformation of the column
     5. Girder chord drift due to axial deformation of the girder

Chord drift can be reduced by increasing member EA and moment drift can be
reduced
by increasing member EI and/or reducing member length.


Jyouru Lyang, SE
Caltrans






> Hi everybody
> What are the manners of reduction the drift on rigid frames(without =
> bracing)?
> thanks.have a nice day
> raisi





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