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Re: LRFD 3rd edition has arrived - VT weld testing

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Ken,
 
This really is not new.  The AWS D1.1 is referenced by engineers all the time as a basic spec, "All welding will conform to the requirements of AWS D1.1", but I question how many engineers have really taken the time to read and understand the AWS.  The AWS provides that visual testing will be performed, and though the procedures and requirements for NDT are described, the requirement as to whether or not NDT shall be performed is consistently referred back to the engineer (i.e. the Construction Drawings). 
 
If testing other than visual is to be required on a project, the project plans and specifications must outline what is required and when.  There was an article series in Modern Steel a few months back that dealt specifically with these issues.
 
Paul Feather
 
 
 
 
----- Original Message -----
To: Seaint
Sent: Tuesday, November 27, 2001 7:30 AM
Subject: LRFD 3rd edition has arrived - VT weld testing

I just received my LRFD  Manual - Third Edition.  It looks like quite a manual!  I can't wait for the "unified" manual, it may need its own bookshelf!
 
Anyway, I was surprised to find the following paragraph regarding weld testing on page 8-4:
 
"In the absence of instruction, AWS D1.1 Section 6.6.5 states that the fabricator or erector is responsible only for those weld discontinuities found with VT.  If additional inspection more stringent than VT is later required, the owner is normally responsible for the cost of weld repairs other than those identified by VT"
 
I am not a weld inspection expert, but that to me sounds a lot like this:  "If I didn't tell you that I was going to check the compressive strength of the concrete, then if I do check it later and it is not OK then it is the owner's problem"  I'm sure I must be missing some basic fundamental difference because of my ignorance, but what is it?
 
As always, thanks in advance for your insights.
 
Ken
 
 
Kenneth S. Peoples, P. E.
Lehigh Valley Technical Associates
1584 Weaversville Road
Northampton, PA 18067-9039
Phone: (610) 262-6345
Fax: (610) 262-8188
e-mail: kpeoples(--nospam--at)lvta.net