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Fwd: Re: Fire Damages Structures

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In a message dated 97-04-08 21:07:28 EDT, you write:

> At 02:27 PM 4/8/97 -0700, you wrote:
>  >I've been asked to look at a tilt wall building with recent fire damage.
>  >haven't seen the structure yet, but I understand the purlins and GLBs are
>  >charred. There is also some spalling in the tilt wall panels.
>  >
>  >Is anyone familar with guidelines that will help determine what has to be
>  >replaced and what can remain. My common sense is telling me that the
>  >purlins are probably bad, the GLBs might be OK and I have some concern
>  >about the spalled concrete since this is probably due to the expansion of
>  >the reinforcing steel.
>  >
>  >Thanks,
>  >Bill Allen

You might want to check on the date the building was built.  I have run into
several buildings built in the late '40's and early '50's in which the
glu-lams were made with interior glue.  One fire damaged building I
investigated had glue line deterioration that apparently occurred due to
heavy soaking during fire suppression.  To my knowledge, beams frabicated
since that time have used exterior glue almost exclusively so it should not
be a problem with more recent structures. 

Bill Cain, SE
Oakland, CA

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Richard Lewis, P.E.
Missionary TECH Team

The service mission like-minded Christian organizations
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