We will be constructing a '2V' dome, that is a dome with two strut lengths, struts A and B. The lengths, obviously, depend on the diameter of the base of the dome.
These lengths will be calculated with the help of the dome calculator at http://www.desertdomes.com
Strong Members
As the dome needs to take the load of a covering/cladding (in a real situation this would be the roof and walls and therefore rather weighty) the members making up the structure must be strong. For this reason we have chosen to use 20mm steel electrical conduit.
Stiff Joints
The dome must avoid structural movement and for this the joints between the members must be stiff and strong, similar to the needs of the joints of a portal frame. For this the conduits will be flattened at the ends and holes drilled through the flattened sections to accommodate bolts to tie the members to one another.
Strong Members
As the dome needs to take the load of a covering/cladding (in a real situation this would be the roof and walls and therefore rather weighty) the members making up the structure must be strong. For this reason we have chosen to use 20mm steel electrical conduit.
Stiff Joints
The dome must avoid structural movement and for this the joints between the members must be stiff and strong, similar to the needs of the joints of a portal frame. For this the conduits will be flattened at the ends and holes drilled through the flattened sections to accommodate bolts to tie the members to one another.
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