rods 15 the ends these are extended into conical holes 22 in the connecting plate 13 and are held in place by two half cones 23 as shown in fig6 the reinforcing frame complete with its connecting plates fitted in this way is placed in a formwork for the casting of the semi beam maintaining the lower side flat on the ground by preference the two complementary semi beams 10 even if they are disconnected should be cast in line with each other with a stand or other reference piece located in between to ensure the mating of the corresponding bolt holes in the connecting plates for when the two halves are assembled and also as they define the inclination in the resulting semi beam the connecting plates 12 13 are at the larger end and are firmly anchored in the body of the beam on the sides of the body of the beams there are some thicker portions 24 corresponding to the connecting plate anchoring tie rods u2014 see fig7 u2014 also on the sides of the semi beam just behind the lower connecting plate 13 recesses 25 are created during the casting using removable formers to allow access to the lateral holes 13 1 to permit the insertion and tightening of the connecting.