Section Modulus is unique to each shape, it is a structural engineering
function. 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Steve Leyton
Sent: Monday, July 23, 2007 11:25 AM
To: [email protected]
Subject: RE: Section moduli of Unistrut

I don't know the specifics of Tol-Strut, Uni-Strut or Powerstrut load
bearing abilities in a trapeze application, but you were considering this
application in SoCal you would have to furnish a letter from the
manufacturer and possibly one from the project SE as well.  I've seen
conduits trapezed on strut, but never piping.  

Does anyone know if the "section modulus" is a standardized measurement or
value?  If NFPA 13 publishes these values for "pre-engineered"
trapeze materials like pipe and angle iron, can I easily derive the modulus
value for other materials by applying a formula to the material's dimensions
or the manufacturer's stated load bearing capacity?

Steve Leyton
PROTECTION DESIGN & CONSULTING


-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Travis Mack
Sent: Monday, July 23, 2007 8:17 AM
To: [email protected]
Subject: RE: Section moduli of Unistrut

As long as we go with the strut as indicated by the manufacturer's criteria,
we should be OK??  You can't use slotted 1-5/8" strut for much of anything
as I have seen some try to do on many different occasions.

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Bill Minkel
Sent: Monday, July 23, 2007 8:12 AM
To: [email protected]
Subject: RE: Section moduli of Unistrut

Unistrut will not work for most trapeeze, section modulus is very low. 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of G. Tim Stone
Sent: Monday, July 23, 2007 8:59 AM
To: [email protected]
Subject: RE: Section moduli of Unistrut

Travis,

Check out the following link to Power Strut: 
  
http://www.powerstrut.com/psjan2005/fibergl182.jpg


G. Tim Stone


NICET Level III Engineering Technician
Fire Protection Sprinkler Design
and Consulting Services

117 Old Stage Rd. - Essex Jct., VT. 05452
TEL: (802) 434-2968          Fax: (802) 434-4343
                [EMAIL PROTECTED]

> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:sprinklerforum-

> [EMAIL PROTECTED] On Behalf Of Travis Mack
> Sent: Monday, July 23, 2007 8:29 AM
> To: [email protected]
> Subject: Section moduli of Unistrut
> 
> Does anyone have a datasheet or link to download one for Unistrut (or 
> something similar) that gives the section modulus.  We need to size 
> some unistrut for trapeze hangers.  I remember a table in the unistrut

> catalogues from many years ago, but can't find it any more.
> 
> Thanks for your help.
> 
> Travis
> 
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