Zip Tie Tunnel Domes

https://www.ziptiedomes.com - This is a 2 frequency icosahedron dome that has been stretched into a lozenge shape by adding additional struts. The standard 5 way connector at the top of the icosahedron dome has been replaced with a 6 way connector. This enables a strut to be added to the top of the dome that runs longitudinally to the other end of the dome. Two examples are shown, one based on the a 10' wide, 5' tall 2v dome that has been stretched to over 20' long, and a larger model based on the 16' wide, 8' tall dome, that has been stretched over 30' in length. Each tunnel dome only required 2 extra "non-standard" struts to complete the design. Using our hub design, this type of dome can use struts made from PVC pipe, EMT metal conduit, or rebar made from metal, fiberglass, or basalt. A geodesic dome made from rebar is the foundation for the development of concrete domes using concrete mesh for a covering, and then shooting the dome with shotcrete or gunite. Our next R&D task is to stretch the 3v and 4v domes using the same technique.