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uplift in core walls

uplift in core walls

uplift in core walls

(OP)
Hello,


Is it possible to eliminate uplift in core walls? The reason for this, is that, we need to isolate the core walls by providing precompressed bearing or strip elastomer bearing at the bottom of the cores, since it is required to anticipate the effect of vibration coming from a nearby railroadtrack. Basically, the main idea,is that for the core walls to have sufficient gravity loads to far outweigh any horizontal force coming from the wind,therefore, hoping this will result in eliminating any uplift on the core walls, is it possible to do this? Any ideas will be greatly appreciated

RE: uplift in core walls

Yes, if your gravity loads are large enough, you can keep the whole core in compression. What you described has been done a number of times adjacent to railways. The design of the bearings is complex, and will probably require a lot of coordination with the bearing manufacturer's engineers.

RE: uplift in core walls

(OP)
thanks hokie66 for your immediate reply, we're just on a conceptual stage and we want to show them(arch) that the core walls have no uplift at all. What I'm wanted to do is to model the whole building and analyzed it due to wind loading, if the core supports, doesnt have any tension(- values in reaction), this will prove our claimed. Is there any other way of doing it aside from modelling it in 3D?

RE: uplift in core walls

You can model it in 2D on a piece of 8x11 unless your building warrants a high level of analytical sophistication. You just need to have confidence in your answers, no matter how you come by them.

The greatest trick that bond stress ever pulled was convincing the world it didn't exist.

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