A-7 to A-36
A-7 to A-36
(OP)
What year was the transition from A-7 (33 ksi) to A-36 (36 ksi)?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
Download nowINTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: A-7 to A-36
A7 was typically either 30,000 psi or 33,000 psi min depending on when it was produced. I believe it was based on 50% of tensial
RE: A-7 to A-36
ht
BA
RE: A-7 to A-36
Michael.
Timing has a lot to do with the outcome of a rain dance.
RE: A-7 to A-36
?? I'm not sure I follow.
Yes- the steel doesn't know what code it was designed under, but it most certainly DOES know it's yield strength. If the A7 steel has Fy=30 ksi, and you check the building assuming Fy=36, you've just added 20% capacity on a whim.
RE: A-7 to A-36
RE: A-7 to A-36
RE: A-7 to A-36
AISC Q&A here: h
Michael.
Timing has a lot to do with the outcome of a rain dance.
RE: A-7 to A-36
http://www.astm.org/DATABASE.CART/WITHDRAWN/A7.htm
AISC Design Guide No. 15, table 3.2 lists Allowable Stresses in Early Steel.
The early 1900s steel was, ASTM A7 for bridges and A9 for buildings. Both consolidated in A7 steel in 1939. In the early 1960 A36 was available.