Hull Construction - Kết cấu thân tàu

Hull Construction

Transversally stiffened

This structure is now virtually obsolete and may not be used on hulls greater than 120m in length




The hull requires a plate floor every 3.05m and a frame every 1m. Hence there are 3 frames for every plate floor. The two frames are attached to the floor angle iron transverse.

For the aft framing of the aft peak tank or the for'd framing of the for'd collision bulkhead the maximum framing pitch is 0.61m. Also for the for'd 0.2l of the ship the maximum spacing of the frame is 700mm (this helps to prevent damage due to slamming).

Underneath the engine seating a plate flooris required every frame.
The keelp plate is made from heavier section of plate and has its ends tapered to allow it to be welded onto the normal hull plating

Duct keel construction for transversely framed hull


Longitudinally framed hull (tanker)


The longitudinal framing is much better able to resist buckling when the hull is hogging



Longitudinal framing (Dry Cargo)







SOURCE: http://www.marineengineering.org.uk/