Flat plate transverse bulkhead structure for liquid cargo tank on LNG (Liquefied Natural Gas) ship

The invention discloses a flat plate transverse bulkhead structure for a liquid cargo tank on an LNG (liquefied natural gas) ship, which comprises a bulkhead plate, a T-shaped profile, a T-shaped profile panel amplification structure, a stiffener, a reverse side reinforcing structure, a watertight supplementary plate and a non-watertight supplementary plate, the T-shaped profile is vertically arranged on the bulkhead plate, the top of the T-shaped profile in a straight area is connected to a main deck longitudinal bone through a toggle plate, and the T-shaped profile panel amplification structure is arranged on the right side of the bulkhead plate. The bottom of the T-shaped section bar is connected to an upper inclined side area of a bottom plate in the ship body through a T-shaped section bar panel amplification structure; the top of the T-shaped section bar is connected to an upper inclined side plate longitudinal rib; and the bottom of the T-shaped section bar is connected to a lower inclined side plate l