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TORSION IN COLUMN

TORSION IN COLUMN

TORSION IN COLUMN

(OP)
Is it possible to have a huge amount of torsional moment in a single column bent for design of bridges? The superstructure is made of AASHTO girders that were placed above the coping beam.

RE: TORSION IN COLUMN

How big is big? What is creating the torsion?

RE: TORSION IN COLUMN

(OP)
The model from STAAD produced a value of 11000 KN-m. The designer did not release the My in the model though it is free to translate in both directions.

RE: TORSION IN COLUMN

Sounds like a modeling problem--is it really possible for the column to pick up that much torsion? Can the torsion be resisted in another way, such as in the diaphragm (bridge deck)?

DaveAtkins

RE: TORSION IN COLUMN

I'm inclined to agree that it's a modeling problem. I can't picture a bridge column experiencing torsion. I'm not saying it's impossible; it just doesn't seem likely.

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