I overheard a conversation reguarding the use of omega in OCBF vs SCBF and hoped someone could confirm/deny/shed greater light on the subject.
For a SCBF the brace is designed for R=6. With omega=2 applied to the connections making the connection design twice as strong as the brace. So a...
The USGS has produced design data for the US an its territories. If you are outside of these regions, perhaps the IBC is not the governing code.
As Dr. Ghosh points out "there is nothing international about the International Building Code".
Thank you both for taking the time to address this tedious issue.
To msucog: Thank you for your direction - I guess I should have posted this in the geotech section.
I did mean SDC=D. Starting with an assumed Site Class D, I end up in SDC=D which per IBC/CBC 1802.2.7 requires a soils...
Aawk this new code! CBC2007/ASCE 7-05
The IBC/CBC Section 1802.2.7 has an exception that allows a design in SDC D without a soils report if the peak ground acceleration of Sds/2.5 is used and Sds is determined per ASCE 7 Section 21.2.1. This section refers to a probabilistic MCE (2% in 50...
I am aware of a cell site on school property where the first 4 courses of block were laid without the special inspector on site. I this case core sampling and testing were prescribed by DSA as remediation. The EOR will need to work out with the permitting agency what sort of plan B processes...
Thanks to all for your comments.
I did make the suggestion to use prefab conc culverts but. . . the owner is a mason :-(
I spec'ed bentonite rope around the penetrations and had been wondering about the need to seal the interior. But I've been going rounds with the owner on the need to make...
I have a 9'x9'x150' CMU storm water detention tank that I have been asked to design. The bottom is at -12' below grade. It will be full only for a few hours during peak runoff. Being a little hesistant at the use of masonry, I have been insisting that the end walls where the 36" & 18" dia pipes...
