×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Proposed Revisions To AISC Design Guide 15, Historical Shapes

Proposed Revisions To AISC Design Guide 15, Historical Shapes

Proposed Revisions To AISC Design Guide 15, Historical Shapes

(OP)
AISC Design Guide 15 is a recognized source of accurate information concerning the historical use of structural steel in the USA. In general, it provides information on various structural shapes and design criteria since 1873.

Some time ago I realized that Design Guide 15 does not correctly address the design criteria for buildings from 1942 to 1946 (World War II). In September 1942, AISC issued a war emergency specification that significantly increased allowable stresses for structural steel members, certain bolts, rivets and welds. This was done to make maximum use of reduced quantities of steel then available. The allowable stresses were relaxed in February 1946, after the war ended. Currently, Design Guide 15 does not acknowledge any of these changes.

I notified AISC with details and proposed revisions in January 2015. I was informed that the proposal has been taken under consideration, but have heard nothing since January.

Very little structural steel was used for buildings during 1942 - 1946, so why is this important? If an Engineer is reviewing an existing 1942 - 1946 building, say for potential reuse, it would be good to know that the structural steel is 20% more heavily loaded than Design Guide 15 currently states.

Full details of the AISC specifications and the proposed revisions are available on this page of my website:

http://www.slideruleera.net/AISC-Desiign-Guide-15....

www.SlideRuleEra.net idea
www.VacuumTubeEra.net r2d2

RE: Proposed Revisions To AISC Design Guide 15, Historical Shapes

You probably realize this already, but the publication of these design guides is a long and drawn out process. I remember getting a "final draft" of the AISC design guide for Tapered members (DG#25) in early 2007... The design guide didn't end up getting released until 2011. surprise

RE: Proposed Revisions To AISC Design Guide 15, Historical Shapes

Interesting and noted. Please let us know if they do get back to you. I've done a lot of work in buildings of this era, though none specifically build during WW2, I'm sure I'll run into something that was under this era sooner or later.

Maine Professional and Structural Engineer. www.fepc.us

RE: Proposed Revisions To AISC Design Guide 15, Historical Shapes

(OP)
Thanks, Josh. I did not realize that it took that long. Decided to make all of the info that I used available so that the few Engineers potentially affected can draw their own conclusions.

www.SlideRuleEra.net idea
www.VacuumTubeEra.net r2d2

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources