it is a frame sturctures
A teepee is considered a shell structure. Shell structures derive their strength from their shape, which allows them to distribute loads evenly across their surfaces. In the case of a teepee, the conical shape helps to efficiently support its own weight and withstand external forces such as wind or snow loads. This is in contrast to mass structures, which rely on their mass and volume for stability.
its a frame
A pop can is considered a shell because it is a hollow structure with a thin exterior wall. It does not have a solid mass throughout, like a solid frame.
mass
sheel
mass
eiffel tower is a frame structure.
shell because it is hollow and therefore represents the form of a shell which is also recognized as a shell structure
the Eiffel tower is a definite frame. if the tower had something over the frame it would be a mass so the Eiffel tower would never be a shell if it had the framing still inside of it.
mass structure, frame structure and shell structure
shell and frame