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Re: flag pole deflection

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ÃÖÈ£¿µ wrote:

>  We are making a  flag pole( height =10 m ).
>  But, have no idea about the allowable maximum deflection
>  in the extream case.
>  L/200  or  L/100  ?

AASHTO specification for structural supports for highway signs,
luminaires and traffic signals recommends the following:

2.5% of structure height for horizontal linear displacement.

maximum angular rotation at top relative to base of 1 degree, 40 minutes
(slope of .009m in .305m)