How do I analyze the vault with the structure?
After defining the vault in the required position and geometry in your project, activate the Set Vault Restraints command in the Vault auxiliary toolbar.
![](../__attachments/1126466257/image-20210318-080426.png?inst-v=f19fc7cc-758e-4997-b5f0-444a3286777e)
The Set Boundary Conditions dialog will open.
![](../__attachments/1126466257/image-20210318-080538.png?inst-v=f19fc7cc-758e-4997-b5f0-444a3286777e)
In the dialog that opens, after marking the boundary conditions for solution with building system, make your arrangement so that only the option/options that are supported on each side of the vault will remain active.
If you want to solve the vault element with the structure, it would be a better solution to select the Use semi rigid diaphragm option from the Analysis Settings dialog, General tab.
![](../__attachments/1126466257/image-20231211-114751.png?inst-v=f19fc7cc-758e-4997-b5f0-444a3286777e)