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Thanks for the response. I am considering it pinned top and bottom. The only reason I mentioned the joist span was to point out that no additional dead load is added by the floor. The moment equation in my original post is the max moment for a pinned=pinned beam with a triangular loading...

Hi All, We are working on an existing brownstone and are adding some additional backfill to the exterior of the front foundation wall, in turn increasing the soil loads on the wall. In going through the calc I am finding the wall is not close to working, even for the existing condition. Here...

Great conversation here, thanks for the responses.

This is a large house, 60ft x 32ft x 32ft tall and essentially on the ocean. The hold down forces are quite large, 7000 lbs at some locations. SLTA: The architect simply responded to my markups showing the hold downs. I suppose it can't hurt for them to ask. He has not questioned me since...

Thanks for the responses. KootK, that is the approach I took, trying to explain to the architect why we need them. Whether they fully believe me is another question.....

Hi All, I am designing a house in a 110mph, exposure C zone, so we are designing per the WFCM. As always we have specfied hold downs at the ends of shear walls for the architect. The architect has posed a question back to us, asking if we can get rid of the hold downs and increase the sill...

Thanks for all the responses. KootK, I worked through a similar detail with the staggered ends, just seemed like a PITA to build! jayrod12, we are trying to maintain a 6" wall cavity, so I am currently using (3) 1 3/4"x 9.5" LVLs which are deflection controlled. If I laid them flat, I would...

Hi All, I have a project with a 2-story clear space, and as such have engineered triple LVL wind girts to span around the floor opening. This condition occurs at a corner, and therefore am left with a detail at the corner where each wind girt needs to transmit about 1400lbs of wind load to the...

I am wondering what others thoughts are on 30+ story coupled shear wall building systems and their design. Typically, we design these in ETABS using shell elements for the flat plates and shear walls. We have found that due to the stiffness of the floor plates, they can greatly impact the...