If I were to choose, I won't go for it.
Have a nice day.
-Mandar.
This message comes from Mandar's desk.
"Steve
McKenzie" To: <PipingDesign@yahoogroups.com>
<Mechproj@xtr cc:
a.co.nz> Subject: RE: [PipingDesign] Struts
23/09/2003
15:26
Please
respond to
PipingDesign
Aha
I think its just words. What you call a strut I call a hanger. Every book I
have including the dreaded "piping guide" refers to struts as being
primarily compression loaded.
If you call a tension member a strut, there will be a lot of confusion.
A member designed for tensile load can be also loaded in compression but
the
capacity is normally much lower.
It would be dangerous to assume that a member rated for a tensile load can
carry the same load in compression. With ductile members that have a high
moment of inertia compared to their length (short and fat) then the
difference may be small. However if long and thin, as many pipe hangers
are,
then buckling may occur.
You need to work it out i.e. do the sums.
Cheers
Steve McKenzie
-----Original Message-----
From: Tushar Rajyaguru [mailto:trajyagu@ltcis.ltindia.com]
Sent: Wednesday, September 24, 2003 1:03 AM
To: piping design
Subject: RE: [PipingDesign] Struts
Hi Steve,
I am bit confused and I think I am misunderstood. My query is about strut support and not Column/strut (structural members). The strut support consists of rigid body with ball bushing joint as a connection at both the ends. One end is connected with pipe with clamp and other with the structure. Normally Struts have very high load bearing capacity.
Hi Tushar Rajyaguru
A strut is by normal definition a compression member. Same as a column. If
you have only used tension members, there is a bit more work involved in
strut design. You need to consider end conditions and analyse for buckling.
Also struts do not like eccentric loads, so avoid where you can. They are
fairly well covered in most textbooks although the end conditions/degree of
fixity when is used to estimate the equivalent length can take some time.
Transverse loads also need to be taken into account e.g. seismics, wind etc.
They can have a big influence as they induce a moment the same as an
eccentric load does.
Cheers
Steve McKenzie
-----Original Message-----
From: Tushar Rajyaguru [mailto:trajyagu@ltcis.ltindia.com]
Sent: Wednesday, September 24, 2003 12:14 AM
To: piping design
Subject: [PipingDesign] Struts
Dear Friends,
We are planning to use strut in one piping system. My query is whether strut
can take compressive load ? Generally we have used it in tension only.
"NO EFFORT IN LIFE GOES UNPAID, HENCE GO AHEAD"
Tushar K. Rajyaguru
Plant & Piping Engineering,
Larsen & Toubro - Chiyoda Ltd.,
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[Non-text portions of this message have been removed] Received on Tue Sep 23 09:42:00 2003
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