The method for producing a bending beam for a joining device, comprises providing a core that corresponds to the contour of the bending beam, braiding the core with braided threads by a radial braiding process for forming a layer of the braiding form and producing a fiber composite using the layer of braiding form to form the bending beam. The braided threads consist of glass fibers and/or carbon fibers. The braiding the core is carried out in layers for forming a braided structure. The weft threads are interlaced into braiding form or a braided structure. The method for producing a bending beam for a joining device, comprises providing a core that corresponds to the contour of the bending beam, braiding the core with braided threads by a radial braiding process for forming a layer of the braiding form and producing a fiber composite using the layer of braiding form to form the bending beam. The braided threads consist of glass fibers and/or carbon fibers. The braiding the core is carried out in layers for forming a braided structure. The weft threads are interlaced into braiding form or a braided structure. A unidirectional fiber ply is introduced between the layers of the braided structure. The braided thread of same material and/or same stability is used for the layer of braiding form or the braided thread of same material of different stability is used for the layer of braiding form or braided thread of different materials is used for the layer of braiding form. For the braided thread of different layers of braided structure and/or weft thread, braided thread and/or weft thread of different materials are used. The braiding form and/or the braided structure are impregnated with a polymer or polymer mixture. The polymer or polymer mixture is cured under heat supply or pressure influence to form the fiber composite. A braiding angle of braiding form is adjusted so that the forces transferred on the fiber composite are optimally received in the operation mode of the bending beam. The core is used with adhesive properties that allow an effective adhesion of the fiber composite on the core. To achieve the adhesion properties, the core is subjected to a surface treatment process, is provided with coating and is formed with geometric contours and form elements. The core consisting of solid materials or hollow material is used. The bending beam is created in which the core remains in the composite and is removed from the composite. The section of divided cores connected to each other is used that are removed from the fiber composite. The core having hollow materials or fiber composite formed without core is used for the reception of current cable and/or a supply line for a liquid or gaseous medium. An independent claim is included for a bending beam for a joining device.