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Maximum deflection of column for rc bridge design

Maximum deflection of column for rc bridge design

Maximum deflection of column for rc bridge design

(OP)
Good day!
I am designing columns and piles for a viaduct.

It has a single column and a single pile on all piers. One of my columns, with an unsupported height of 13.7m (12.7m clear height) has a deflection of around 160mm for longitudinal direction and 340mm for transverse direction at the unsupported height. Is there something written in AASHTO LRFD 2012 about the maximum deflection?

RE: Maximum deflection of column for rc bridge design

Not that I recall

RE: Maximum deflection of column for rc bridge design

Nothing I'm aware of. That deflection seems excessive. Are you using the strength combinations or is this from the service combinations?

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