Originally Posted by powerrodsmike
Do you have any examples of structures that use a triangular cross section type beam instead of a rectangle or square?
Only similar: The three tubes making up a typical antenna tower or the space station arms or frames for large (sports arena) domes.
While I was looking around trying to find an answer before opening this thread, I ran across something that looks promising. The trouble is that some of it looks like math and some of it looks like some kind of programming language and almost all of it flitters by right over my head: