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Create a stepped wall foundation in Revit Structure

When using the foundation tools in Revit Structures you can create a wall foundation, but there is no automatic tool to connect the foundations for a stepped wall, the following steps are one way for you to create a stepped wall foundation.

First of all, you need a stepped wall, the wall type for now is not important. You could create this by editing the profile of the wall to create a stepped wall, and you could also create individual sections of wall using levels or base offsets.

Next you will use the Structural Foundation: Wall tool (off the Structure Tab).

You then select the wall to apply the foundation. The tool will apply it to the base of the wall. If needed, you could change the foundation type; I used a Retaining Footing 300x600x300. This places a foundation ‘off centre’ to the wall and is 300mm deep.

Now switch to an elevation view, to see the length of the wall. You can now manually connect these footing together as there is no tool for this.

You will use the Model In-Place tool (off the structure Tab> Component drop down) to create the connecting concrete elements, but you could also load in a predefined angled footing family.

You need to select a category for our connecting elements, there is one for Structural Foundations. You also need to specify a name. This helps when you create schedules later on in your project.

You now create a Solid Extrusion, to make sure the extrusion is in the correct place you will also need to select a new work plane (off the Structure Tab> Workplane Panel > Set).

Still in the elevation view, select the face of the wall to set the new work plane and draw the shape for the connecting concrete elements, I have drawn two and will extrude them in one go to save time, but you could create these separately if required. It will also save time if you set the material at this stage. This is done in the Properties Palette, under Materials and Finishes.

Once you have drawn what you require and set the material, click on the big green tick to finish. You can now drag the Model In-Place elements to match the size of the wall footings. A dashed blue alignment line will indicate when you have dragged to the face of the footing. This will need to be done on both sides of the wall, you can lock these in place too.

You will need to make sure the footings are the same material as the model in-place elements so you can join them together. You can check the material for the footings under Edit Type in Properties Palette and change as necessary.

You now use the Join tool (off the Modify Tab> Geometry Panel) to join the wall footings and the model in-place elements. Select the footings and the model in-place elements one by one to join.

This is the final result, a stepped wall with stepped foundations that are all connected.

Thanks for your time.

Don’t forget to check out the Graitec Powerpack for Revit for a lot of useful additional functions.

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