US 4,418,463 A · Method of fabricating a composite structure of concrete and steel metwork

Abstract

A method of fabricating a composite structure comprising wire mesh and concrete. The longitudinal wires of a section of such wire mesh are formed together into a repeating sinuous pattern perpendicular to the transverse wires, so that the alternate transverse wires together comprise two groups each in one of two parallel spaced apart planes. A flat section of similar mesh is placed against each of these groups. Each of the flat sections of mesh and the juxtaposed group of transverse wires of the formed mesh are in turn placed together to be cured, into first and second layers of wet concrete mixes in suitable forms to produce the composite concrete-steel network structure. The relatively light weight structure may be utilized for floor, ceiling or roof slabs, and for column load bearing wall panels. According to other aspects of the invention, the mesh sections and the concrete layers may also be curved transversely or longitudinally, so as to comprise composite arcuate panels for tanks or other curved structures. The space between the concrete layers may carry circulation barriers or insulation material to increase the insulating properties of the structure.

Claims2

Dependent claims

The method of fabricating a composite structure of concrete and steel network, comprising the steps:

providing a three dimensional wire network structure;
providing a first upwardly opening form, said form including members to provide a stiff structural assembly, and means pivotally supporting the assembly about a longitudinal axis thereof, so that the assembly may be rotated about said axis;
providing a first layer of high structural strength concrete mix the length and breadth of the first upwardly opening form;
lowering the network structure into the mix in the form so that a portion of one side of said structure is submerged within the mix;
providing means supporting the three dimensional structure upwardly from the bottom of the form, so that the wires thereof are above the bottom of the first form;
providing means for clamping the first layer into the form upon the subsequent cure of said layer;
allowing a period of time for the first concrete layer to cure at least to initial hardness;
providing a second upwardly opening form with a second layer of high structural strength concrete mix the length and breadth thereof;
pivoting the stiffening structure over and supporting said structure so that a portion of the other side of the wire structure is submerged within the second concrete layer parallel to and above the bottom of the second form;
and
allowing a period of time for the second concrete layer to cure at least to initial hardness.

8 more elements

The method of fabricating a composite structure of concrete and steel network, comprising the steps:

providing a central three dimensional steel network member comprising spaced apart longitudinal wires each secured to transverse wires equally spaced apart generally the full length of said longitudinal wires, the longitudinal wires being curved at each transverse wire an equal amount in common normal direction thereto, said direction alternating with successive ones thereof;
providing two planar steel network members each comprising spaced apart longitudinal wires each secured to transverse wires spaced apart generally the full length thereof;
loosely tieing each of the planar members at distributed points to the associated wires of the three dimensional member;
providing a first upwardly opening form, said form including members to provide a stiff structural assembly, and means pivotally supporting the assembly about a longitudinal axis thereof, so that the assembly may be rotated about said axis;
providing a first layer of high structural strength concrete mix the length and breadth of the first upwardly opening form;
positioning the three dimensional network member along with one of the planar members into the form;
providing means for clamping the first layer into the form upon the subsequent cure of said layer;
providing means supporting the three dimensional member upwardly from the form, so that the planar member and one of two sets of transverse wires of the three dimensional member are submerged within the concrete layer parallel to and above the bottom of the first form, each of said sets of transverse wires consisting of alternate ones thereof;
allowing a period of time for the first concrete layer to cure at least to initial hardness;
providing a second upwardly opening form with a second layer of high structural strength concrete mix the length and breadth thereof;
pivoting the stiffening structure over and supporting said structure so that the other one of the planar network members and the other one of the sets of transverse wires of the three dimensional member are submerged within the second concrete layer parallel to and above the bottom of the second form;
and
allowing a period of time for the second concrete layer to cure at least to initial hardness.

10 more elements

Dependencies are inferred from the claim text.

Method of fabricating a composite structure of concrete and steel metwork

Life of this patent

Method of fabricating a composite structure of concrete and steel metwork

Life of this patent

Abstract

Claims2