The basis of this concept is a large sheath membrane, that consists of different layers, is overlayed over a steel framework that is flattened.
This large sheath is very light it would be placed over the unerected structure, using the same building tecniques as erecting a circus tent.
With the help of ropes and pulleys the steel framework underneigth the sheath is slowly erected.
When fully erected, the next stage is that epoxy resin is injected into the sheath, filling a honeycomb void. When the resin hardens it gives a strong structural outer shell. It would only take about a day to fully harden, and gives the structure rigidity.