Oh, dude, Big Ben is actually the nickname for the Great Bell of the clock at the north end of the Palace of Westminster in London. So, it's neither a frame nor a shell, it's just a really big bell inside a clock tower. But hey, I guess you could say it's a "shell" for the bell if you really wanna get technical.
I think Big Ben is bigger.
shell and frame
Big ben is a frame structure because people can go inside of it
The clockfaces of the Big Ben have a diameter of 7.5m.
frame structure
frame
it is a frame sturctures
frame structure
A tent is a frame structure
A shell structure supports its self and a frame structure does not support it self.
its a frame
Yes, Big Ben is still called Big Ben.