The paper focuses on the problem of the elasticity theory for an infinite isotropic elastic plate weakened by circular perforation. The perforated holes are filled with inclusions made of elastic material and sealed along the edges. Transverse stiffening ribs made of another elastic material are riveted to the panel symmetrically to the surface. The elastic perforated plate is subjected to uniform tensile stress (tension at infinity). The action of riveted reinforcing strengthening ribs is modeled by unknown concentrated forces applied to anchor points.