Friday, September 7, 2007

Re: Lag Bolts in Sht. Metal Straps

I'd love to use a thicker strap, but the straps have to be flexible to wrap
around small diamter tanks. Did you know that those seismic straps around
hot water heaters are only 26 gage, (0.018" thick)!!

Larry Hauer


>From: "Robert Kazanjy" <rkazanjy@gmail.com>
>Reply-To: <seaint@seaint.org>
>To: seaint@seaint.org
>Subject: Re: Lag Bolts in Sht. Metal Straps
>Date: Thu, 6 Sep 2007 21:38:14 -0700
>
>14 gage is ~.075" thick, a much more reasonable thickness
>
>cheers
>Bob
>
>On 9/6/07, Josh Comfort <jcomfort@ggbse.com> wrote:
> >
> > Table 11K in the 2005 NDS has single shear values for 3/8" diam. lag
> > screws
> > w/ 14 ga. side member thickness: G=0.5, Z(par)=200#, Z(perp)=130#.
>Those
> > values are for a penetration (p) of 8D into the wood. For 4D< p< 8D,
>you
> > multiply the values by p/8D.
> >
> > -----Original Message-----
> > From: Larry Hauer [mailto:lrhauer@hotmail.com]
> > Sent: Thursday, September 06, 2007 1:32 PM
> > To: seaint@seaint.org
> > Subject: Lag Bolts in Sht. Metal Straps
> >
> >
> > I'm working on the anchorage of equipment to existing wood stud walls
>and
> > need to know what the minimum thickness of sheet metal strapping is for
> > both
> > a 3/8" diam. and 1/2" diam. lag bolt acting in shear and what those
>shear
> > values are. I understand the values ares in some light gauge metal
> > handbook
> > which I do not have. I would like the thickness to be the minimum
> > possible,
> > (24 ga.?), and still get an allowable shear value of about 400#.
> >
> > Thanks in advance.
> >
> > Larry Hauer S.E.
> >
> > _________________________________________________________________
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