Forces at ends of shear walls

RE: Forces at ends of shear walls

Seth Guthrie — Thu, 21 Feb 2019 17:05:40 GMT

You can see the loads that are applied. Nodal reactions are used for lateral loads from a wall on a mat. Line loads are used for gravity forces.

RE: Forces at ends of shear walls

Timothy Schuster — Thu, 21 Feb 2019 15:55:25 GMT

Does Ram dump the loads at the ends as if the walls were pin -pin on the ends. Or does it break it up into segments. I would think that even for just D + L the distribution of forces would be more even under the walls.

RE: Forces at ends of shear walls

Seth Guthrie — Thu, 21 Feb 2019 15:26:16 GMT

I think that behavior is to be expected. The height of the walls and the size of the mesh are factors that could affect the force distribution. So too is the stiffness of the soil springs. Whether the stress spikes lead to a design issue depends on how wide the design strips are. I don't typically see slab modifiers used on mat slabs, but if cracking is expected then you certainly could apply them and the force would be further redistributed.