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Re: concrete drop panels

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THANKS

2007/10/9, Scott Maxwell <smaxwell(--nospam--at)umich.edu>:
> Yes...I interpret it the same way...if you have an 8" slab, your drop panel
> should be at least 2" thick (25% of the thickness of the slab).
>
> Regards,
>
> Scott
> Adrian, MI
>
> -----Original Message-----
> From: refugio rochin [mailto:fugeeo(--nospam--at)gmail.com]
> Sent: Tuesday, October 09, 2007 9:54 AM
> To: seaint(--nospam--at)seaint.org
> Subject: concrete drop panels
>
>
> Thanks bye the way for all of the 8" columns input.  Not sure if I learned
> anything, but interesting to see people's different input... I am usually
> concerned with that issue on residential buildings.  lots of architects like
> skinny columns !  concrete is much cheaper than steel tubes...  I think I
> might look at the column with a P-Delta load plus the P, and see if it can
> take it.  Also to look at buckling...
>
> Concrete Drop Panels
>
> ACI has a drop panel requirement:
>
> Section 13.3.7.2 - Projection of drop panel below the slab shall be at least
> one-quarter the slab thickness beyond the drop. ??? This wording has
> confused me.  I think however, that it means the drop panel, to be
> considered a drop panel, shall be at least a 1/4 of the slab thickness, so
> if I have an 8" slab, then the drop panel shall be at least 2", giving an
> overall depth to the panel of 10" which includes the slab...  no???
>
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