Construction member

Claim 2

A flat construction element comprising a core of expanded resin foam material having opposite surfaces, a plurality of parallel metallic members regularly distributed in said core, said members each having a height equal to the thickness of said core, a cover layer on each of the surfaces of said core, each said cover layer being constituted of hardened resin in contact with the associated surface of the core and with said metallic members along the external surface thereof, and a layer of hardened resin interposed between the metallic members and said core.

Claim 3

A construction element as claimed in claim 1 wherein the core is rectangular and the metallic members are of U-shape with a bottom adjacent a large surface of the core and arms adjacent smaller edges of the core, a further cover layer covering said edges and the arms, the arms having extremities which are covered by the cover layers applied on the larger surface of the core opposite the one adjacent said bottom of the U-shape member.

Claim 4

A construction element as claimed in claim 2 wherein two successive metallic members have their arms adjacent opposed large surfaces of the core.

Claim 5

A construction element as claimed in claim 2 wherein the core is rectangular and the metallic members are of U shape with arms adjacent the smaller faces of the core and a bottom perpendicular to said arm, the resin layer being in cooperative contact with the external surfaces of the arms and the edges thereof adjacent the larger surfaces.

Claim 6

A flat element comprising expanded resin foam core of material having little resistance to compression comprising a plurality of core portions disposed in spaced relation parallel to one another in a substantially planar configuration, a plurality of elongated reinforcement bars disposed in the spaces between adjacent core portions and filling the same, said reinforcement bars having transverse faces not facing the edges of the core portions and longitudinal faces facing said edges of the core portions, said transverse edges being substantially at the same level as the opposed faces of the core portions, and a layer of hard resin reinforced with glass fibers covering with continuity the opposed faces of the core portions, the said transverse faces of the reinforcement bars, the said longitudinal faces of the reinforcement bars and also the longitudinal faces of the core portions, thus adhering the said bars with said core portions of the core and forming a hard, continuous skin on the external faces of the element.

Claim 7

A flat element comprising expanded resin foam core of material having little resistance to compression comprising a plurality of core portions disposed in spaced relation parallel to one another in a substantially planar configuration, a plurality of elongated reinforcement bars disposed in the spaces between adjacent core portions and filling the same, said reinforcement bars having transverse faces not facing the edges of the core portions and longitudinal faces facing said edges of the core portions, said transverse edges being substantially at the same level as the opposed faces of the core portions, and a layer of hard resin reinforced with glass fibers covering with continuity the opposed faces of the core portions, the said transverse faces of the reinforcement bars, the said longitudinal faces of the reinforcement bars and also the longitudinal faces of the core portions, thus adhering the said bars with said core portions of the core and forming a hard, continuous skin on the external faces of the element.

Claim 8

A flat element according to claim 5 in which the metallic bars are tubular and have a rectangular transverse section.

Claim 9

A flat element according to claim 5 in which the bars are solid and have junction faces with the core portions which are substantially planar.

Claim 10

A construction element as claimed in claim 4 wherein the core is constituted by a plurality of blocks each of which is engaged in the space between the arms of corresponding U-shaped metallic member.

Claim 11

A construction element as claimed in claim 1 in which the metallic member is tubular.

Claim 12

A construction element as claimed in claim 9 in which the tubular member has a rectangular section.

Claim 13

A construction element as claimed in claim 1 in which the metallic member is solid.

Claim 14

A construction element as claimed in claim 1 in which the metallic member has an oblong section.