METHOD FOR MANUFACTURING PRECONTRATED CONCRETE BEAMS WITH A STIFFENER FOR A BEAM FLOOR SYSTEM AND INTERVIEWS

摘要

The present invention relates to a method of manufacture of prestressed concrete beams with a stiffener for a system of the floor joists and interjoists, the method comprising the successive steps of positioning (s1) of blocks and of a strand into each mold, the tensioning of the strand (s2) of each mould, casting concrete (s3) into each mold, fitting (s4) of a stiffener into each mold, an oven (s5) of several moulds in order to obtain a of the cutout (s6) of the strand of each mould, after having made an expansion of the strand, the mould (s7) of each beam while maintaining the wedges in the corresponding mold, and the stack (s8 - 1) on a station for discharge of each beam is demolded, the assembly of the process steps being performed automatically.