How can I optimize mesh in gmsh? (for the intersection between entities)

Question

I have a geometry composed of four walls, a slab, and beams.

geometry image:

I am using gmsh for meshing it, starting from a step file. I would like to know how to guarantee the continuity between elements in the area of the next figure. I am using Python.

Issue 2:

Answer 1

You may want to use the OpenCASCADE geometry kernel which provides some more powerful commands.

1. Start by putting SetFactory("OpenCASCADE"); right at the beginning of your file.
2. Then use boolean operations to unite the different parts of your mesh. This way they will automatically stiched together. This tutorial by Bertrand Thierry will help you