Fuselage sub-floor structure with aircraft components having corrugated C-channel

An aircraft column component, comprising:

• a corrugated C-channel, an upper stanchion fitting and a lower stanchion fitting, wherein the aircraft column component is configured to be connected between a cargo floor crossbeam of an upper fuselage frame of an aircraft and a lower curved fuselage frame of the aircraft;
• the corrugated C-channel comprises an intermediate corrugated section and a straight section arranged at both ends of the corrugated C-channel, wherein each straight section of the corrugated C-channel is integrated with a web plate and a flange of the intermediate corrugated section, and a corrugation of the intermediate corrugated section is arranged along a length extension direction of the intermediate corrugated section;
• and
• each of the upper stanchion fitting and the lower stanchion fitting comprises a stanchion fitting main web plate, a stanchion fitting flange and a stanchion fitting secondary web plate, wherein the stanchion fitting main web plate, the stanchion fitting flange and the stanchion fitting secondary web plate are fixedly connected and perpendicular to each other;
• wherein the upper stanchion fitting and the lower stanchion fitting are connected to an inner side of the straight section respectively, the stanchion fitting main web plate of the upper stanchion fitting is connected to the cargo floor crossbeam, the stanchion fitting main web plate of the lower stanchion fitting is connected to the lower curved fuselage frame, the stanchion fitting main web plate of the upper stanchion fitting is fixedly connected to the web plate of a straight section arranged at one end of the both ends of the corrugated C-channel, the stanchion fitting flange of the upper stanchion fitting is fixedly connected to a flange of the straight section arranged at the one end of the both ends of the corrugated C-channel, the stanchion fitting main web plate of the lower stanchion fitting is fixedly connected to the web plate of a straight section arranged at another end of the both ends of the corrugated C-channel, and the stanchion fitting flange of the lower stanchion fitting is fixedly connected to a flange of the straight section arranged at the another end of the both ends of the corrugated C-channel.