×
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

Steel Ultimate Stress Range

Steel Ultimate Stress Range

Steel Ultimate Stress Range

(OP)
Does anyone know why some steel specifications in the AISC manual give a range for the ultimate stress range( i.e. 58-80), but some specs only give a specific number for the ultimate stress?

hairpull

RE: Steel Ultimate Stress Range

I'm not sure I understand the question.  But anyway, some steel specifications (such as A36, if I remember right) give only a minimum ultimate strength, while others give a minimum and a maximum.  I'm not sure of why that is the case.  I assume the maximum is actually to help make sure toughness and weldability are reasonable, not so much that high strength by itself is undesirable.  And, I haven't checked, but it may be the older specifications that give only the minimums.

RE: Steel Ultimate Stress Range

Maximum actual strength is important for overstrength checks where the full force of some structural item or part of Fu limit strength has to be taken assuredly by another.

Specifying a precise range may be also an indicator of the structural properties of the steel, mainly if allayed or ordinary structural. For seismic applications lower strength structural steels are known to behave with more ductility, and are sometimes selected or even mandated.

Respect the actual reason of the inclusion in the code with the precisions given, it must be, in my view, that are those for what the specifications are thought to be applicable.

RE: Steel Ultimate Stress Range

Further clarification--it's not "range" vs. "specific", it's "range" vs. "minimum".

Hg

Eng-Tips policies:  FAQ731-376: Eng-Tips.com Forum Policies

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