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Re: Questions re: Doors & Windows

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Thanks Scott
You just started my day correctly.
Gary

On 15 Sep 2005 at 12:28, Scott Maxwell wrote:

> My policy regarding doors and windows...ah, who needs them!  They only
> mess up perfectly good walls that could otherwise be nice shearwalls!!
> <grin>
> 
> ;-)
> 
> OK, I'll try to be serious now.
> 
> I think that James' post hit it pretty well...it will depend on your
> scope of work as to whether you (i.e. the structural engineer) must do
> some sort of specific "structural design" for a specific window or
> door.
> 
> As to item #1, it is my understanding that door manufacturer/supplier
> are basically wrong.  The code (in the US at least) does provide
> requirements for windows and doors, especially in hurricane areas.
> 
> Now, typically, it is my experience that the design of the windows
> and/or doors is the responsibility of the manufacturers.  Specs for
> the windows and doors will usually call out those "performance"
> requirements (i.e. wind parameters/pressures).  The manufacturer may
> then hire someone to design their windows and/or doors, but as they
> likely use the same things over and over again, presumably they will
> have some "original" design and then that design might (or should) be
> tested.  The question of attachment of the windows and/or doors is a
> little tougher to answer.  That is something that should be handle in
> the design of the building, but whether or not the structural engineer
> does it I would say is still a matter of scope of work since
> windows/doors are generally not structural elements (i.e. part of the
> structural system of the building...NOT that they need not be
> "structurally" designed)...and it is my experience that design of
> non-structural elements may or may not be part of the SEOR's design
> depending on scope of work.
> 
> HTH,
> 
> Scott
> Adrian, MI
> 
> On Thu, 15 Sep 2005, Gary Hodgson & Associates wrote:
> 
> > Everybody,
> >
> > As structural engineers, what is your policy regarding doors and
> > windows.  I ask due to the following situations:
> >
> > 1.	In a large industrial building (not mine), a large truck door
> > panel buckled in a high wind.  When I reviewed it, the door did not
> > meed code loading requirements.  The door supplier and manufacturer
> > both maintain that the door does not have to meet the code as it is
> > not part of the building.  The code says building accessories and
> > components must meet code requirements.  Lots of argument ensued.
> >
> > 2.	On a condominium job, another engineer who visited the site after
> > the structural work was complete said that he didn't think the
> > fastening of the window was adequate.  The municipality said I had
> > to check this but the builder would not give me any information or
> > open it up for me to check.  I told the city I was only responsible
> > for the structure.
> >
> > 3.	On a house, I did not think that a double door and transom had
> > heavy enough framing members and asked for documentation.  I got no
> > compliance whatsoever.
> >
> > I consider doors, windows and their fasteners the responsibility of
> > the supplier/manufacturer but I'm curious to hear the lists'
> > opinions on these situations and what they would have done.
> >
> >
> > Cheers,
> > Gary
> >
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