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Re: bullet-proof glass anchorage

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Thank you, Harold.  This is the information and reassurance I was looking
for.  I've contacted the manufacturer for more information.  Very much
appreciated, kind sir.


On Wed, May 22, 2013 at 5:01 PM, Harold Sprague 

> BP glazing is very heavy.  Per the building code, you have to resist the 
> 5 psf partition load, or the seismic demand whichever is greater.  Unless 
> you have a very small glazing area, it would be difficult to imangine 
> that the impact of a bullet using UL 752, Level 4 to drive the frame 
> design.  The UL 751, Level 4 is a single shot from a 30-06, 180 grain, 
> JSP, at a velocity range of 2540 to 2794 fps.
> You can perform a nonlinear dynamic analysis and make a conservative
> assumption of steel to get the penetration.  I think that you will find
> that because of the mass of the glass, it will be difficult for the 
> impact loading to be consequential for the frame.
> You can also call a BP glazing manufacturer to get some bounding design
> information for the frame.  Global Security provides installation 
> details. 
> <>
> Regards, Harold Sprague
>> Date: Wed, 22 May 2013 15:00:05 -0700

Truncated 1005 characters in the previous message to save energy.

David Topete, SE

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