] [Thread] [Date] [Author]

[David Topete <davetopete(--nospam--at)yahoo.com>]

I know this is off-topic, but is the architect dictating such a large piece of glass?  4' x 12' ???  Encourage them to add a mullion, or something...  Sorry I can't provide anything wrt your query...
DT

"Mueller, John" <jmueller(--nospam--at)pcf-p.com> wrote:

Dear list members:

 

I?m using ASTM E 1300-04 ?Standard Practice for Determining Load Resistance of Glass in Buildings?.

I am calculating the deflection for laminated glass ? two sheets of 6mm glass with a 1.52 PVB interlayer.

The window daylight opening is roughly 1230mm by 3700mm, and I?m calculating for a design load of 5.3 kPa.

 

My question is this:

Appendix X1, para X1.1.1 reads ?This procedure can be used for laminated glass under short-term loads using the laminated glass thickness designation.?

Following paragraph 3.2.3.2 (thickness designation for laminated glass) I get a minimum thickness for my glass as 11.91mm... And using these numbers with the method in X1 I get results that are identical to the typical method with single sheet glass ? not laminated glass!

 

I assume that I misunderstand X1.1.1, the ?laminated glass thickness designation?.

Anybody familiar with this who knows where I?m making a mistake?

 

Thanks a million,

John.

 

 

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