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Re: baseplate analysis problem

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If the columns are not plumb then the flanges could be in jeopardy of local
buckling.  You can reinforce the flanges by welding a bead on the flange
tips and in this case probably the lower third of the length (if that much).
Also, for future reference, you can design the columns an inch short, extend
anchorbolts up an inch so that there is a 1" space between the finished
floor and the base plate where you use a nut on each side of the base
plate - the whole thing is then plumbed by adjusting the nuts and grout is
placed between the floor and the base plate.  It's a little more labor
intensive but allows for adjustment.

                                                                    Greg
-----Original Message-----
From: Sibco6756(--nospam--at)aol.com <Sibco6756(--nospam--at)aol.com>
To: seaint(--nospam--at)seaint.org <seaint(--nospam--at)seaint.org>
Date: Thursday, February 11, 1999 1:14 PM
Subject: baseplate analysis problem


>
>I have a problem where I must now check several baseplates that have
misplaced
>(off center) columns.  The columns have axial load and moments with anchor
>bolts at the corners.  Checking by the hand methods has shown overstress in
>bolts and the plate so I must need to do a more detailed check. ( The
framing
>has been built, so replacing or moving the baseplate will be difficult, I
can,
>however, drill in more anchor bolts )
>
>The current software program I use for baseplate design will not do this
>analysis - does anyone have suggestions on other methods or softwares that
can
>be used to solve problems of this type ?
>
>many thanks for any help that can be provided,
>
>-sib
>
>