Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

RE: Welding HSS

[Subject Prev][Subject Next][Thread Prev][Thread Next]

Jorge,

Yes, the shear stresses are highest at the midpoint of the composite beam which need to be calculated and the weld designed accordingly.  Without running any numbers I would be surprised if a nominal stitch weld would not be sufficient.

Thomas Hunt, S.E.
Fluor



"Jimenez, Jorge A." <jajimenez(--nospam--at)csagroup.com>
01/24/2007 04:32 AM
Please respond to seaint
To
<seaint(--nospam--at)seaint.org>
cc
Subject
RE: Welding HSS





Tom,
 
If this is a beam, sure the horizontal stresses are low in locations where the vertical shear is low. But the horizontal stresses are high when the vertical shear is high and then, the stresses in the weld should be considered. If the welds do not have the required strength, they will not guarantee the behavior of the 2-HSS vertically stacked as a unit, and then, the whole capacity of the beam will be lower, and there will be no capacity gain stacking the HSS’s.
 
Jorge Jimenez, PE
 



From: Tom.Hunt(--nospam--at)fluor.com [mailto:Tom.Hunt(--nospam--at)fluor.com]
Sent:
Monday, January 22, 2007 12:34 PM
To:
seaint(--nospam--at)seaint.org
Subject:
Re: Welding HSS

 

David,


If I understand the layout here, you would be calling out a Flare-V Groove weld on each side which is certainly doable but would require a welding procedure (WPS) that is qualified by testing since I do not believe none are prequalified.  If this is a beam, the horizontal shear stresses should be low at the mid point so that should not be much of a problem.


Thomas Hunt, S.E.

Fluor


  "M. David Finley, P.E., P.A." <davidfinley(--nospam--at)bizsea.rr.com>
01/22/2007 08:13 AM

Please respond to seaint

To
"Seaint(--nospam--at)Seaint.Org" <seaint(--nospam--at)seaint.org>
cc
 
Subject
Welding HSS

 


   





How well can two square HSS be welded side-by-side?  For example, can two 6x4 tubes be welded with longitudinal welds to create an overall 6x8 tube?  How detrimental are the rounded edges in this situation?

David Finley
M. David Finley, P.E., P.A.
2086 SW Main Boulevard - Suite 111
Lake City, FL  32025
386-752-6400

 



-----------------------------------------------------------------------------------------------------
The information transmitted is intended only for the person
or entity to which it is addressed and may contain proprietary,
business-confidential and/or privileged material.
If you are not the intended recipient of this message you
are hereby notified that any use, review, retransmission,
dissemination, distribution, reproduction or any action taken
in reliance upon this message is prohibited. If you received
this in error, please contact the sender and delete the
material from any computer. Any views expressed in this message
are those of the individual sender and may not necessarily reflect
the views of the company.
-------------------------------------------------------------------------------------------------------