Mat Foundation With Perimeter Wall
Mat Foundation With Perimeter Wall
(OP)
Hi all,
I am designing a mat foundation for a building which is 90' x 300' in plan. The building has a full basement therefore there is a concrete basement wall going around the full perimeter.
My question is this: how do I account for the added stiffness the wall gives the mat at the perimeter, or am I splitting hairs here? I am using PCA Mats and my initial mat thickness is 3.6' (7 storey office building). The basement walls are 10' high. I am considering modeling thicker elements around the perimeter or possibly slaving the perimeter nodes.
Thanks in advance for any help/advice on this.
I am designing a mat foundation for a building which is 90' x 300' in plan. The building has a full basement therefore there is a concrete basement wall going around the full perimeter.
My question is this: how do I account for the added stiffness the wall gives the mat at the perimeter, or am I splitting hairs here? I am using PCA Mats and my initial mat thickness is 3.6' (7 storey office building). The basement walls are 10' high. I am considering modeling thicker elements around the perimeter or possibly slaving the perimeter nodes.
Thanks in advance for any help/advice on this.





RE: Mat Foundation With Perimeter Wall
I would think that this may be a false economy though as you will have different founding depths for different beams.
RE: Mat Foundation With Perimeter Wall
RE: Mat Foundation With Perimeter Wall
RE: Mat Foundation With Perimeter Wall
First, ignore the added stiffness of the walls on the mat. (This allows the walls to be placed after the mat).
Second, if the stiffness of the walls is necessary, then cast the walls first with details of reinforcement like a spandrel beam.