LNG ship cargo hold transverse bulkhead structure

The utility model discloses a transverse bulkhead structure of a cargo hold of an LNG ship. The structure comprises a first vertical reinforcing rib, a second vertical reinforcing rib, a platform plate, a first longitudinal girder and a second longitudinal girder, the first vertical reinforcing rib is arranged in an inner bottom plate area, the second vertical reinforcing rib is arranged in a broadside inclined side plate area, and toggle plates are arranged at the ends of the first vertical reinforcing rib and the second vertical reinforcing rib; the platform plate and the first longitudinalgirder are both arranged between the first transverse bulkhead plate and the second transverse bulkhead plate, the platform plate is horizontally arranged, the first longitudinal girder is longitudinally arranged, and the platform plate and the first longitudinal girder form a cross beam structure. And the second longitudinal girder is arranged below the first vertical reinforcing rib. The vertical ladder is simple in str