An Airbus A380 fuselage is manufactured in three different parts and then assembled together:
(Images courtesy of Airbus S.A.S 1994)
The fuselage functions under extreme conditions: low pressure outside and normal pressure on the inside (normal for humans, that is), and wind drag at near Mach 1 speeds.
How are the three parts joined together to complete an airtight unit? Does one fit into the other in a male-female configuration and how are they held together? Is it nuts and bolts, rivets, screws, airtight glue or a combination of them all? Pictures would be greatly appreciated.