E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
E04B5/17—Floor structures partly formed in situ
E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
E—FIXED CONSTRUCTIONS
E04—BUILDING
E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
Elements modulaires fabriques industriellement a partir de materiaux extrudables pour la realisation et l'assemblage de coffrages perdus (destines aux murs et ouvrages en beton), de cloisons, de mobiliers urbains et domestiques