How we adjust purlins and trusses in vault beams

[Nidde]

Hello, I'm new among you and a bit of a beginner. Now let's say we have a vaulted roof. The radius is not in the shape of a dome up, it works downwards. Does anyone know how to adjust the purlin and truss beams here? 6FdL2V]https://hizliresim.com/6FdL2V[/url]

 

[nurgulkaya]

Re: Vault problem Hello; Plus or minus sign allows you to direct the curvature section radius as you want. You enter minus.