Wing-wingbox junction rib for an aircraft and method for producing an aircraft using such a rib

A junction rib configured for a wing-central wingbox junction of an aircraft, comprising:

• a main web,
• an upper flange and a lower flange that extend from the main web on a first side relative to the main web,
• the main web having a junction surface arranged on a second side opposite the first side,
• the main web including rows of orifices opening on the second side in the junction surface and on the first side,
• the rows of orifices comprising at least a first row of orifices formed in an upper portion of the main web and extending from a front side towards a rear side of the junction rib,
• a second row of orifices formed in a lower portion of the main web and extending from the front side towards the rear side of the junction rib, and
• a third row of orifices formed in the upper portion of the main web and extending from the front side towards the rear side of the junction rib such that the first and third rows of orifices are arranged respectively on either side of the upper flange, each one of the rows of orifices comprising orifices in a free state.