equipment enclosure wall

[yexx0022]

Hi:

I am designing some big equipment enclosure walls.

These are concrete walls (box type), total 6 next to each other. There are gravity loads, seismic loads (3 directions), out of plan wind loads.

The height is about 40 ft, each cell width is about 40 ft. There is perpendicular concrete walls to divide between each cell. There are columns under each corner that go down to foundation.

I plan to treat this as wall design, check for shear, axial bending (P M).

Another engineer said this need to be designed as deep beam using stru and tie model.

I do not see the loading and support condition we have fall in to this deep beam category. Also my understanding is the deep beam is more for flexual members (a beam member). in addition, most of the wall is "deep". The code does not require deep beam in the wall section.(other than grade beam)

Any oponion?

Thanks

 

[Teguci]

If the foundations only support at the columns (drilled piers or pile caps) then the walls will need to span between columns (aka deep beam). If you have a continuous footing then you aren't spanning between foundations.

If the former is the case, I suggest revising the foundations to a strip condition for KISS simplicity.

 

[hokie66]

For vertical loading, they are deep beams. For horizontal loading, they are slabs.