Need a book? Engineering books recommendations...

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

RE: Notch Tough Welding Metal

[Subject Prev][Subject Next][Thread Prev][Thread Next]
>A while ago, I attended an AISC seminar
>in the midwest where I believe one 
>of the speakers talked about modifying
>the typical flange bevel weld used 
>for beam to column moment connections.
>I believe some of the 
>recommendations came out of the research
>conducted after the Northridge 
>earthquake. If I understood him
>correctly, one of the recommendations was 
>to use notch tough weld metal (minimum 20
>ft-lbs at -20 degrees F) even in 
>non-earthquake country.
>What does this mean to a fabricator? Does
>he have order special welding 
>rods to meet this requirement? Are their
>special welding procedures also?

Filler-metal notch-toughness requirements for wind and low-seismic
applications (when R is taken equal to or less than 3) are contained in the
LRFD Specification for Structural Steel Buildings (these apply -- or should
be applied -- when using ASD, too). See Section J2.6 in particular.
Filler-metal notch-toughness requirements for high-seismic applications
(when R is taken greater than 3) are contained in the AISC Seismic
Provisions/Supplement No. 2. 

You can get these documents and others like them as free downloads from the
AISC web site by following the links here:


******* ****** ******* ******** ******* ******* ******* ***
*   Read list FAQ at:
*   This email was sent to you via Structural Engineers 
*   Association of Southern California (SEAOSC) server. To 
*   subscribe (no fee) or UnSubscribe, please go to:
*   Questions to seaint-ad(--nospam--at) Remember, any email you 
*   send to the list is public domain and may be re-posted 
*   without your permission. Make sure you visit our web 
*   site at: 
******* ****** ****** ****** ******* ****** ****** ********