re-entrant corner drag strut offset from corner
re-entrant corner drag strut offset from corner
(OP)
I am performing a peer review of a qualified SE's work whereby he designed a re-entrant corner drag strut / collector beam offset about 4' from the actual corner of a tilt-up building. I have never seen this done. It would be my understanding that the collector/drag strut would need to fasten directly to the wall with some sort of hardware.
Can anyone give me a scenario where this isn't the case? He did this in one direction, but not the other.
Thanks for any help someone could give.
Can anyone give me a scenario where this isn't the case? He did this in one direction, but not the other.
Thanks for any help someone could give.






RE: re-entrant corner drag strut offset from corner
Is there a connection detail?
Mike McCann, PE, SE (WA)
RE: re-entrant corner drag strut offset from corner
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
RE: re-entrant corner drag strut offset from corner
Thanks again!
RE: re-entrant corner drag strut offset from corner
Garth Dreger PE - AZ Phoenix area
As EOR's we should take the responsibility to design our structures to support the components we allow in our design per that industry standards.
RE: re-entrant corner drag strut offset from corner
However, the only member connecting the diaphragm to the 20' wall is the wall's ledger.
RE: re-entrant corner drag strut offset from corner
I also agree that the collector likely serves as a drag strut for loads applied parallel to the long direction.
It's a weird setup but it can be made to work. Can you query to the EOR to confirm their intent? I wonder if the intent was simply to not mess with the purlin spacing for aesthetic reasons.
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
RE: re-entrant corner drag strut offset from corner
Thank you for the comments. I also have his calcs, but it's not exactly complete and transparent.