how to turn a round mesh to triangluar shapes with triangle holes in it

Support Modeling
1

i’m doing a building and the outer side it made out of steel scafoldings which is made up of triangles and the space between beams (triangluar) are made out of glass, i’m currently modeling the beaming, so it there any idea how and i turn the round like object to trianglar mesh?
thx!

2

Try a Icosphere.