The invention relates to a structural component for an aircraft or spacecraft, comprising a component core extended across a component area, a first and second cover layer, which are formed on two opposite bounding surfaces of the component core and extend across the component area, a plurality of braces, which are distributed across the component area and connect the first and second cover layers to each other through the component core, and a stiffening belt, which extends between the cover layers along a stiffening line that extends substantially parallel to the component area.