Gary Stofan
Ansys Employee

It appears you are starting with a 3D solid geometry, and you want to decompose it to surfaces and lines in order to analyze more efficiently. 

This can be done, however there is a fair amount of time and effort that is requred to decompose and connect such geometry.

It is not practical to attempt to connect many edges and lines after the fact as this requres manual surface extensions, relocations, trimming. etc.

Much of this can be done automatically when you decompse a 3D geometry to a midsurface.

 ANSYS SpaceClaim: MidSurfacing

As far as connecting a surface edge and line body, I might suggest the following method example: 

Creating and Analysing a Beam and Shell Bridge Model with ANSYS SpaceClaim and Mechanical