Aircraft with a reinforced floor structure

1. An aircraft, including:

a fuselage floor;

a top panel of a central wing box;

at least two rails and at least two beam, the rails and the beams extending in a fuselage of the aircraft between the floor and the panel, below the floor and above the panel; and

at least one reinforcement suitable, independently of the rails for taking up a force acting at the level of the floor and for transmitting said force to at least one of the beams and the top panel,

and wherein:

the beams are horizontal, the rails and the beams are parallel to each other and additionally are parallel to a longitudinal direction of the fuselage, the rails are located above the beams and in coincidence with respective ones of the beams,

the at least one reinforcement is connected to the panel by two links that are coplanar with a plane perpendicular to the rails and that are inclined in mutually opposite directions, and

the at least one reinforcement extends into the fuselage and along a horizontal direction perpendicular to a longitudinal direction of the fuselage.

2. An aircraft according to claim 1 , wherein the at least one reinforcement is suitable, independently of the panel, for taking up a vertical force acting at the floor and for transmitting said force to the beams without transmitting it to the panel.

3. An aircraft according to claim 1 , wherein the at least one reinforcement is suitable, independently of the beams, for taking up a lateral force acting at the floor and for transmitting said force to the panel without transmitting it to the beams.

4. An aircraft according to claim 1 , wherein the at least one reinforcement is secured to the beams in the vertical direction.

5. An aircraft according to claim 1 , wherein the at least one reinforcement presents lateral clearance relative to the beams.

6. An aircraft according to claim 1 , wherein the panel is stiffened by at least one stiffener and the links define straight lines presenting a point of intersection situated level with a neutral axis of the assembly formed by the panel and its stiffener.

7. An aircraft according to claim 1 , that includes, for each reinforcement, a single fork connecting the links to the panel.

8. An aircraft according to claim 1 , including a ball joint on at least one end of each link.

9. An aircraft according to claim 1 , wherein at least one of the at least one reinforcement intersects a vertical longitudinal midplane of the aircraft.