Joints in telecom tower

I don't quite understand your question. Are you looking for help in defining the geometry of the tower quickly, or something else? I assume you only have STAAD.pro available to you and not any of our tower-specific products.

Are you looking to design Connections in Towers?

yes

For connection design you can use RAM Connection software.

Using RAM Connection you can design, check and optimize; shear, moment, gusset, splice, bracket, base plate connections according to IS 800 (RAM Connection CONNECT Edition Update 1; will be available in couple of days) as well as AISC (ASD or LRFD), EN 1993, BS 5950, GB 50017.