Posted by Per Corell on August 03, 2003 at 09:44:31:
In Reply to: Re: Per, Ever hear of a space frame? Did you invent this? posted by Scratchy on August 03, 2003 at 08:08:36:
What I se in this foto, is cirtainly not a 3D-H structure.
I rather say it is sort of a geostatic shell structucture ---- nothing wrong about those, but the difference is important.
There are many different Geostatic structures ,most form a rounded surface distribuating the weight of the frames along a grid or pattern of stringers that then is formed to hold the glass or whatever fill out the spaces between stringers. Back in the happy 60' the trend was a mesh of strings ,the so called computer meshes like what you in AutoCAD find in the edgesurf command ; form a mesh from 4 lines forming a square and raise the middle of the mesh to form a Dome, ------ but still this is nothing like a 3D-H ; sure you can make a 3D-H look like this sort of computer mesh Dome, as with 3D-H you can form a framework for almost anything, but 3D-H is not a geostatic structure ; it is produced way different and work compleatly different beside the materials for a 3D-H is in princip sheet material, and for a Geostatic structures, the "material" is profiles like window frames just for a shaped mesh formed window framework. ------- True you can do this with 3D-H even better but please let me explain another very important feature about 3D-Honeycomb, using the foto as example ;
In that you se a cover for a huge space, with 3D-H you would make the floors and walls in one with that.
Se the difference ; like Bilbao is mainly a thin metal covering held in the ait by steel pipes , a structure in 3D-H would have offered this but beside an option to make the floors and walls in one with that.
Sorry it's still a bit hot in Copenhagen and I had a headake for a few day's so I can't go deeper into the difference 3D-H versus Geostatic structures, ------ but where Geostatic structures often requier expensive special fittings, everything in a 3D-H structure are made from the sheet material , guess atleast a third the cost.
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