Plane hollow reinforced concrete floors with two-dimensional structure

• US 5,396,747 A
• Filed: 03/31/1993
• Issued: 03/14/1995
• Est. Priority Date: 10/01/1990
• Status: Expired due to Term

• Current Assignee: Jorgen I. Breuning
• Original Assignee: Jorgen I. Breuning
• Inventors: Breuning, Jorgen I.
• Primary Examiner(s): Friedman, Carl D.
• Assistant Examiner(s): SMITH, CREIGHTON H
• Application Number:
  US08/039,018
• Time in Patent Office: 713 Days
• Field of Search: 52/596, 52/319, 52/600, 52/607, 52/380, 52/405.1, 52/808, 52/576, 52/577, 428/14, 428/117, 428/256, 428/255
• US Class Current: 52/516
• CPC Class Codes: E04B 5/04 with beams or slabs of concrete or other stone-like material, e.g. asbestos cement E04B5/08, E04B5/14 take precedence
• CPC Class Codes: E04B 5/32 Floor structures wholly cast in situ with or without form units or reinforcements
• CPC Class Codes: E04B 5/328 the filling elements being spherical
• CPC Class Codes: E04B 5/48 Special adaptations of floors for incorporating ducts, e.g. for heating or ventilating in block-shaped elements E04C1/39; in slab- or sheet-shaped elements E04C2/52

Abstract

A plane, hollow, reinforced concrete floor slabs with two-dimensional structure and method for their production. Constructions developed by this technic will vary widely and with considerable profit replace conventional floor structures. The technique makes it possible to choose higher strength and stiffness, less volume of materials, greater flexibility, better economy or an arbitrary combination of these gains. The technique makes it possible to create a total balance between bending forces, shear forces and stiffness (deformations)--so that all design conditions can be fully optimized at the same time. The technique presents a distinct minimized construction--characterized by the ability that concrete can be placed exactly where it yields maximum capacity. The technique offers material and cost savings compared with the conventional compact two-way reinforced slab structure. The technique is suitable for both in situ works and for prefabrication.

Claims

1. A hollow, two-way reinforced concrete floor, comprising:

an upper reinforcement mesh having openings;

a lower reinforcement mesh having openings and disposed substantially parallel to the upper reinforcement mesh;

a plurality of hollow bodies disposed between the upper mesh and the lower mesh, the bodies being dimensioned and shaped so as to extend into respective openings of both the upper and lower meshes and be retained by the meshes;

interconnecting means for interconnecting the upper mesh and the lower mesh to form an independent stable lattice work retaining the hollow bodies; and

the independent stable lattice work retaining the hollow bodies imbedded in concrete, with the hollow bodies defining internal cavities.

2. A hollow, reinforced concrete floor structure according to claim 1, wherein the hollow bodies comprise closed, thin shells.

3. A hollow, reinforced concrete floor structure according to claim 1, whereby the upper mesh is essentially identical to the lower mesh.

4. A hollow, two-way reinforced concrete floor in accordance with claim 1 in which the hollow bodies comprise two bowl-shaped end parts and an essentially cylindrical intermediate part being sealingly interconnected.

5. A plane, hollow, reinforced concrete floor with a substantially two-dimensional structure comprising hollow bodies and a reinforcement mesh formed by crossing rods and having openings into which the hollow bodies extend to be at least partially retained by means of the rods, said hollow bodies being retained vertically by means of retaining means connected to the reinforcement mesh, said reinforcement mesh and said retaining means forming an independent stable lattice retaining the hollow bodies and being embedded in concrete with the hollow bodies defining internal cavities wherein the hollow bodies comprise two bowl-shaped end parts and an essentially cylindrical intermediate part being sealingly interconnected.

6. A stable lattice work for use in forming concrete floors, comprising:

an upper reinforcement mesh having openings;

a lower reinforcement mesh having openings and disposed substantially parallel to the upper reinforcement mesh;

a plurality of hollow bodies disposed between the upper mesh and the lower mesh, the bodies being dimensioned and shaped so as to extend into respective openings of both the upper and lower meshes and be retained by the meshes; and

interconnecting means for interconnecting the upper mesh and the lower mesh.