Overstrength factor and allowable stress design (ASCE 7-05 12.4.3.2)
Overstrength factor and allowable stress design (ASCE 7-05 12.4.3.2)
(OP)
I want to use allowable stress design in combination with the overstrength factor.
When the new code came out (2006 IBC), some colleagues and I came to the conclusion that equations 5-8 of ASCE 12.4.3.2 were off limits because IBC 1605.4 only provides for strength design in combination with the overstrength factor (equations 16-22 and 16-23).
Last I heard, there was supposed to be some sort of addendum/modification to the IBC making a provision to use ASCE 12.4.3.2 eqs 5-8.
Anyone know the status of such provisions being adopted? I am in California.
Thanks!
When the new code came out (2006 IBC), some colleagues and I came to the conclusion that equations 5-8 of ASCE 12.4.3.2 were off limits because IBC 1605.4 only provides for strength design in combination with the overstrength factor (equations 16-22 and 16-23).
Last I heard, there was supposed to be some sort of addendum/modification to the IBC making a provision to use ASCE 12.4.3.2 eqs 5-8.
Anyone know the status of such provisions being adopted? I am in California.
Thanks!






RE: Overstrength factor and allowable stress design (ASCE 7-05 12.4.3.2)
Thats ASCE 12.4.3.2 equations 5, 6, and 8 rather than "5-8".
And that's the second equation 5 not the first.
(What were they thinking?)
RE: Overstrength factor and allowable stress design (ASCE 7-05 12.4.3.2)
http://www
Specifically page 99/370 on the pdf. It looks like these were proposed to the IBC last fall.
These were proposed changes to the IBC 2009 and this section (S47-09/10) seems to address your issue.
Also look on page 35/102 of this link:
http:
This latter link is the code correlation committee and it appears that this WILL show up in the IBC 2012.
RE: Overstrength factor and allowable stress design (ASCE 7-05 12.4.3.2)
RE: Overstrength factor and allowable stress design (ASCE 7-05 12.4.3.2)
I'm glad to see these changes are coming down the line.
I just can't wrap my head around it every time I have to mix ASD with LRFD.
RE: Overstrength factor and allowable stress design (ASCE 7-05 12.4.3.2)