TH24844B - Building elements - Google Patents

Abstract

DC60 (17/11/47) To improve sound damping in pre-assembled building elements with two parallel wire mesh sheets 1, 2 are connected by a wire mesh 7, 7', with an insulating material (8) such as foam plastic in between. Concrete is then sprayed onto both sides of the wire mesh to form the inner and outer shells. The concrete shells are connected by making holes in the insulating material which, when sprayed, create a concrete mesh or plugs (14,14') that connect the two concrete shells, thus preventing vibration, noise, and resonance of the concrete shells. The holes (10,11,11') can be cast in during the production of the insulating material (8) or drilled or pressed through and may be drawn at a right angle through the main lines of the foam or at an angle that should be downward and randomly distributed to improve sound damping in pre-assembled building elements with two wire mesh sheets. Two parallel wires 1,2 are connected by a wire mesh 7,7', covering in between the insulation material (8), such as foam plastic. Concrete is then sprayed onto both sides of the wire mesh to form the inner and outer shells. The concrete shells are connected by making holes in the insulation material which, when sprayed, create a concrete mesh or plugs (14,14') that connect the two concrete shells, thus preventing vibration, noise, and resonance of the concrete shells. The holes (10,11,11') can be cast in during the production of the insulation material (8), or drilled or pressed through, and may be drawn at a right angle through the main lines of the foam or at an angle where appropriate, downward and randomly distributed.

Claims (9)

1. The structural elements are composed of: two parallel welded wire mesh panels (1, 2) and each straight wire (7) connected at each end to these panels to maintain the mesh panels at a predetermined distance from one another; each straight wire (7) is arranged in rows connecting the two wire mesh panels and the pre-assembled single insulator (8) which covers more than two such rows of wire mesh and defines two opposite surfaces arranged parallel to and positioned between the wire mesh panels (1, 2) and at a predetermined distance; and the insulator is then pierced by the said wires, in which at least one straight hole (10) and at least one slanted hole (11, 11') are formed in the insulator (8) between its opposite surfaces (9, 9'), in which at least one such straight hole protrudes perpendicular to the said surfaces of the insulator. And where at least one of the through holes is beveled, it shall protrude at a predetermined angle to the surface of the insulation. 2. Structural elements according to claim 1, where the said wire mesh shall consist of parallel rows of longitudinal wires (3, 4) and parallel rows of transverse wires (5, 6) perpendicular to said longitudinal wires, such that at least one slanted through hole (11, 11') shall extend parallel to said longitudinal wires (3, 4) or parallel to said transverse wires (5, 6) of said wire mesh. 3. The structural element under claim 1 has the characteristic that the slanted through hole (11, 11') will protrude when the structural element is used as a vertical wall element slanting downwards. 4. Structural elements according to claim 3, where the wire mesh is formed by parallel longitudinal wires intersecting parallel transverse wires, and the mesh is aligned to each other such that the longitudinal wires in sequence correspond to each other, and the transverse wires in sequence correspond to the corresponding longitudinal wires in such mesh, which define the first group of parallel planes, and the corresponding transverse wires in such mesh, which define the second group of parallel planes, and is characterized by the fact that each such slanted perforation (11, 11') extends parallel to the first group of or parallel to the second group of the planes. 5. Structural elements according to claim 1, are characterized by the insulator (8) being composed of two to six through holes (10, 11, 11') per m2. 6. The structural elements according to claim 1 are characterized by each through hole (10, 11, 11') having a circular cross-section with an internal diameter ranging from 50 to 100 mm. 7. The structural element according to claim 1, is characterized by the presence of a certain number of through holes (10, 11, 11') being formed in the insulator (8), and that the distribution of the through holes (10, 11, 11') in the structural element is random. 8. Method of enclosing the structural elements, which consist of; the arrangement of two parallel welded wire mesh panels (1, 2) and each straight wire mesh (7) connected at each end to such mesh panels to maintain the mesh panels at a predetermined distance from one another. Each straight wire mesh is arranged in rows which connect the two wire mesh panels. The arrangement of a pre-assembled single insulator (8) which covers more than two such rows of wire mesh and defines two opposite surfaces (9,9') parallel to and positioned between the wire mesh panels (1,2) and leaving a predetermined distance from each other, then, such insulator is pierced by such wire mesh, forming at least one such straight hole (10) and at least one such slanted hole (11, 11') in the insulator (8) between its opposite surfaces, where at least one such straight hole protrudes perpendicular to such surfaces of the insulator and where at least one such slanted hole It shall be inserted at a predetermined angle to the surface of the insulation, the concrete outer shell (12) to one of the two wire mesh panels (1), which are designed to form the outer shape of the structural element, the concrete inner shell (13) to the other of the two wire mesh panels (2), which are designed to form the inner shape of the structural element, and the packing, at the same time during the insertion process, each straight and angled through hole (10, 11, 11') with a concrete mesh or plug (14, 14') which connects the concrete outer shell (12) and the concrete inner shell (13). 9. The method of claim 8, which also includes the procedure of allowing the concrete shell (12, 13) and the concrete net or plug (14, 14') to set and cure together to form a single concrete structure.