SHear flow
SHear flow
(OP)
Folks,
This maybe a stupid question, but there is something about it that I don't understand entirely. In the attached sketch, I am having a hard time figuring out how the shear from the diaphragm finds its way to the back wall (running east-west). Your thoughts and views are appreciated. Thanks
http:// files.engi neering.co m/getfile. aspx?folde r=55ddd175 -df6c-4f36 -9706-a8b3 a27cb754&a mp;file=Fi le0174.pdf
This maybe a stupid question, but there is something about it that I don't understand entirely. In the attached sketch, I am having a hard time figuring out how the shear from the diaphragm finds its way to the back wall (running east-west). Your thoughts and views are appreciated. Thanks
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RE: SHear flow
RE: SHear flow
Make sure the beam connecting to the bond beam is "anchored" properly.
RE: SHear flow
RE: SHear flow
Mike McCann
McCann Engineering
RE: SHear flow
DaveAtkins
RE: SHear flow
Locally you have to get the diaphragm force into the back wall through bending but the entire shaft could function as a composite C shape with torsion and shear if designed and constructed this way. It looks like an interesting problem which may be possible depending on the level of force you are dealing with and the thickness of you walls. I would think twice if it is a medium to high seismic area, I think it would function as somewhat of an in-plane moment frame that would need special detailing attention.
RE: SHear flow
RE: SHear flow
Mike McCann
McCann Engineering
RE: SHear flow
The only way to use this situation, IMO, is to accurately model the walls (i.e. not a membrane or rigid diaphragm) and then design the walls to have enough out-of-plane flexural and shear strength. It would be better to come up with another arrangement.