JP2016023512A - Reinforcement structural material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reinforcement structural material capable of using not only an iron plate but also the other all kinds of plate-like bases.SOLUTION: In a reinforcement structural material 10B, first and second lattice bars 28a and 28b abut on a top reinforcement 26, abut on a wire net from an upper convex part 29 of bending in a convex shape, and becomes divergent outward in the width direction toward a lower concave part of bending in a concave shape; the upper convex part 29 and the top reinforcement 26 of these lattice bars 28a and 28b are welded and fixed; an intermediate part 30 and a bottom reinforcement 27 of these lattice bars 28a and 28b are welded and fixed; a bending part of the lower concave part of these lattice bars 28a and 28b and a vertical strip of the wire net are welded and fixed; urethane foam is filled in an upper surface of a plate-like base 11; and the plate-like base 11 and the wire net are fixed by the urethane foam.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a reinforced structural material used for construction of a reinforced concrete structure having a predetermined area such as a floor slab, a ceiling slab, or a roof slab.

  It is formed from a steel plate base of a predetermined area that has been plated and a plurality of reinforcing bars trusses installed on the top surface of the steel plate base. A reinforcing steel structure material used to construct a reinforced concrete structure having a predetermined area such as a slab has been disclosed (see Patent Document 1). The reinforcing bar truss is located between the upper end of the iron plate base and the upper end of the steel plate base extending in the vertical direction. It is formed from a lattice that extends in the front-rear direction while repeatedly bending in a wavy shape in the up-down direction. In this rebar structure material, the upper convexity of the lattice bars is spot-welded to the upper muscles in contact with the upper muscles, and the intermediate part of the lattice bars is spot-welded to the lower muscles in contact with the lower muscles. . Further, a bent portion of a lower concave portion of the lattice that is bent outward in the width direction so as to be parallel to the iron plate base is spot-welded to the upper surface of the iron plate base.

JP 2007-170161 A

  In the reinforcing bar structure disclosed in Patent Document 1, an automatic welding machine including an electrode and a moving mechanism is used to spot-weld a bent portion of a lower concave portion of a lattice bar to an iron plate base. As an example of welding by an automatic welder, an electrode is positioned above the bent portion of the lower concave portion, an electrode is positioned below the lower surface of the iron plate base, and the electrode descends toward the bent portion. The electrodes rise toward the lower surface of the steel plate, and while pressing the bent portion and the iron plate base with the electrodes, the bent portion and the iron plate base are sandwiched, and at the same time, a predetermined current flows through the electrodes. The bent portion of the lower recess of the lattice and the iron plate base are instantaneously melted by the current flowing from the electrode, and they are welded.

  In this reinforcing bar structure material, since it is necessary to weld the bent portion of the lower recess of the lattice bar, an iron plate base capable of welding the bent portion must be used, and various plate-like bases other than the iron plate base may be used. Can not. In addition, when using this rebar structure material for the construction of ceiling slabs, a plurality of suspension bolts must be installed on the rebar structure material, and ceiling finishing materials such as decorative plywood, gypsum board, and aluminum panels must be attached to the suspension bolts. In addition, ceiling finishing work is required separately, which takes time and cost. Furthermore, this rebar structure material is formed from a steel plate base and a rebar truss, and since no heat insulation function is added, a heat insulation effect is exhibited in a concrete structure constructed using the rebar structure material. I can't. In addition, in the suspended ceiling structure in which the ceiling finishing material is attached using the suspension bolt, a ceiling dropping accident may occur in which the ceiling finishing material falls when a shake due to an earthquake or the like occurs.

  The object of the present invention is not only an iron plate but also any other type of plate-like base, and by using various plate-like bases as a ceiling finishing material, a reinforcing bar capable of omitting ceiling finishing work. It is to provide a structural material. Another object of the present invention is to provide a reinforcing steel structure material having a heat insulating function and capable of expressing a heat insulating effect in a reinforced concrete structure.

  The premise of the present invention for solving the above-mentioned problem is a reinforcing steel structure material used for construction of a reinforced concrete structure having a predetermined area.

  The feature of the present invention based on the above premise is that the reinforcing bar structure material has a plate-like base having a predetermined area having both side edges extending in the front-rear direction and both end edges extending in the width direction intersecting the front-rear direction, and an upper surface of the plate-like base. A wire mesh that is disposed and extends over substantially the entire area of the plate-shaped base, and a reinforcing bar truss that is positioned on the wire mesh and extends in the front-rear direction, the reinforcing bar truss being spaced upward from the wire mesh and extending in the front-rear direction; A pair of first and second lattices extending in the front-rear direction while repeatedly bending in a wave-like manner between the wire mesh and the upper-end bars, being positioned between the wire mesh and the upper-end bars and extending in the front-rear direction. In the rebar structure material, the first and second lattice bars are in contact with the upper end of the reinforcing bar and bend in a convex shape. They spread outward, The upper convex part and upper end of the streak are welded and fixed, and the middle part and lower end of the lattice are welded and fixed, and the lower part of the lattice and the wire mesh are welded and fixed. And the metal mesh are fixed by an adhesive means.

  As an example of the present invention, a wire mesh is spaced apart by a predetermined dimension in the front-rear direction, and extends in the width direction in parallel with the upper surface of the plate-like base, and is positioned below the horizontal line and predetermined in the width direction. It is formed of a plurality of vertical stripes that are spaced apart from each other and extend in the front-rear direction in parallel with the upper surface of the plate-like base, and the lower recesses of the first and second lattice bars are welded and fixed to the vertical stripes.

  As another example of the present invention, a bent portion that is bent outward in the width direction so that the lower concave portion of the first and second lattice bars is parallel to the upper surface of the plate-like base and is in contact with two portions of the vertical strip of the wire mesh. The bent portion is welded and fixed at two locations on the vertical strip.

  As another example of the present invention, the horizontal stripes adjacent to the front and rear direction of the wire mesh are positioned on both sides in the front and rear direction of the bent portion of the lower recessed portion, and the bent portions of the lower recessed portion extend between the horizontal stripes adjacent to each other in the front and rear direction. It is fixed by welding at two locations on the strip.

  As another example of the present invention, the plate-like base has a recess extending in the front-rear direction with a predetermined distance in the width direction, and the entire vertical strip of the metal mesh is stored in the recess, and the horizontal strip of the metal mesh and the bending of the lower recess The portion is fixed to the upper surface of the plate-like base through the adhering means while contacting the upper surface of the plate-like base, and the vertical strip of the metal mesh is fixed to the concave portion through the adhering means.

  As another example of the present invention, the adhesive means is a urethane foam having a predetermined adhesion function and fixing the wire mesh and the plate-like base, and the urethane foam covers the vertical and horizontal stripes of the wire mesh and the bent portion of the lattice muscle. It has a thickness dimension, and the uppermost part of urethane foam is located above the bent portion and below the lower end line.

  As another example of the present invention, urethane foam forms a heat insulating layer having a predetermined thickness on the upper surface of the plate-like base.

  As another example of the present invention, urethane foam is nonflammable or flame retardant.

  As another example of the present invention, the bonding means is an adhesive for fixing the wire mesh and the plate-like base.

  As another example of the present invention, the plate base is any one of a metal plate base, a wood plate base, a synthetic resin plate base, and an inorganic plate base.

  According to the reinforcing bar structure material of the present invention, the lower recess of the lattice and the wire mesh are welded and fixed, and the wire mesh and the plate-like base are fixed by the adhesive means. Therefore, the lower recess of the lattice is used as the plate-like base. It is not necessary to weld, and not only an iron plate but also any other kind of plate base can be used, and the plate base can be used as a ceiling finishing material. Reinforcement structural materials can use various plate bases as ceiling finishing materials, so it is possible to save the ceiling finishing work for installing the ceiling finishing materials separately, which saves labor and cost for the ceiling finishing work. It can be omitted. In addition, if the lower recess of the lattice is directly welded to the upper surface of the iron plate base, a plurality of marks are generated not only on the upper surface of the iron plate base but also on the lower surface of the iron plate base due to the effect of heat during welding. Rust easily occurs on these welding marks due to condensation, but this rebar structure material is not welded to the plate-like base at the lower recess of the lattice, so no welding marks are generated on the plate-like base. The occurrence of rust on the shaped base can be prevented. In the case of reinforced concrete material, when concrete is cast on the upper surface of a plate-like base and a reinforced concrete structure is made, the plate-like base fixed to the wire mesh by adhesive means is integrated with the concrete. Compared with a suspended ceiling structure with a ceiling finishing material attached, it is possible to construct a reinforced concrete structure that will not cause a ceiling drop accident even if a shaking occurs due to an earthquake or the like.

  A rebar structure material in which a wire mesh is formed from a plurality of horizontal stripes extending in the width direction and a plurality of vertical stripes extending in the front-rear direction, and the lower recesses of the first and second lattice bars are welded and fixed to the vertical stripes, Since the lower recesses of the first and second lattice bars are welded to the vertical strips of the wire mesh, there is no need to weld the lower recesses to the plate-like base, and not only iron plates but also all other kinds of plate materials are used as the plate-like base. It can be used, and the plate material can be used as a ceiling finishing material. Reinforcement structural materials can use various plate bases as ceiling finishing materials, so it is possible to save the ceiling finishing work for installing the ceiling finishing materials separately, which saves labor and cost for the ceiling finishing work. It can be omitted. Reinforcing bar structural materials can be securely fixed to the wire mesh by fixing the lower recesses of the lattice bars to the vertical bars of the wire mesh, and the rebar truss and the wire mesh are unintentionally released. Even if bending tensile force, bending compressive force, or shearing force is applied to the concrete placed in the reinforced structural material, the concrete will not be damaged by these forces. A strong reinforced concrete structure having sufficient strength can be constructed.

  The first and second lattice bars have bent portions that are bent outward in the width direction so as to be parallel to the upper surface of the plate-like base and are in contact with two portions of the vertical strip of the wire mesh. Since the bent portion of the lower concave portion of the first and second lattice bars is welded to the vertical strip of the wire mesh, it is not necessary to weld the bent portion to the plate base. As the plate-like base, not only an iron plate but also any other kind of plate material can be used, and the plate material can be used as a ceiling finishing material. Reinforcement structural materials can use various plate bases as ceiling finishing materials, so it is possible to save the ceiling finishing work for installing the ceiling finishing materials separately, which saves labor and cost for the ceiling finishing work. It can be omitted. Reinforcing bar structural materials can be securely fixed to the vertical strips of the wire mesh by bending the bent part of the lower concave part of the lattice bars to two locations of the vertical strips of the wire mesh. Even if bending tensile force, bending compressive force, or shearing force is applied to the concrete placed in the reinforced structural material, the concrete is damaged by the force. There is no need to do so, and a strong reinforced concrete structure having sufficient strength can be constructed with the reinforced structural material and the concrete. In the reinforcing bar structure material, the bent portion of the lower concave portion of the lattice bar is not welded to the plate-like base, so that no welding mark is generated on the plate-like base, and the occurrence of rust on the plate-like base can be prevented. In the case of a reinforced structural material, when concrete is cast on the top surface of a plate-like base and a reinforced concrete structure is made, the plate-like base fixed to the wire mesh by adhesive means is integrated with the concrete. Even if it occurs, it is possible to construct a reinforced concrete structure that does not cause a ceiling drop accident.

  The horizontal stripes adjacent to the front and rear direction of the wire mesh are positioned on both sides in the front and rear direction of the bent portion of the lower concave portion, and the bent portions of the lower concave portion are welded and fixed to two portions of the vertical stripe extending between the horizontal stripes adjacent to the front and rear direction. Since the bent portion of the lower concave portion of the first and second lattice bars is welded to the vertical strip of the wire mesh extending between the adjacent horizontal strips, the bent portion of the lower concave portion is welded to the plate base. It is not necessary, and not only an iron plate but also any other kind of plate material can be used as the plate-like base, and the plate material can be used as a ceiling finishing material. Reinforcement structural materials can use various plate bases as ceiling finishing materials, so it is possible to save the ceiling finishing work for installing the ceiling finishing materials separately, which saves labor and cost for the ceiling finishing work. It can be omitted. Reinforcing bar structural materials can be securely fixed to the vertical strips of the wire mesh by bending the bent part of the lower concave part of the lattice bars to two locations of the vertical strips of the wire mesh. Will not be inadvertently released, and even if bending tensile force, bending compressive force, or shearing force is applied to the concrete placed in the reinforcing steel structure, the concrete will not be damaged by those forces. However, it is possible to construct a strong reinforced concrete structure having sufficient strength with the reinforced structural material and the concrete.

  The plate-like base has a recess extending in the front-rear direction at a predetermined distance in the width direction, the entire vertical strip of the wire mesh is stored in the recess, and the horizontal strip of the wire mesh and the bent portion of the lower recess are on the upper surface of the plate-like base. The reinforcing bar structure material fixed to the upper surface of the plate-like base through the adhering means while abutting, and the vertical bar of the metal mesh is fixed to the recess through the adhesive means, the horizontal bar of the metal net and the bent portion of the lower concave part are By adhering to the upper surface of the plate-like base through the adhering means while abutting on the upper surface of the plate-like base, the horizontal strip and the bent portion of the lower recess can be securely fixed to the upper surface of the plate-like base, Since the vertical strip of the metal mesh is fixed to the concave portion through the bonding means, the vertical strip can be securely fixed to the concave portion, and the plate-like base and the metal mesh can be firmly connected.

  The adhesive means is a foamed urethane that has a predetermined adhesive function and fixes the wire mesh and the plate-like base, and the urethane foam has a thickness dimension that covers the vertical and horizontal stripes of the wire mesh and the bent portion of the lattice line, Reinforcement structural material whose uppermost part is above the bent part and below the lower end bar is fixed to the bottom of the lattice bar by fixing the wire mesh and the plate base with urethane foam. It is not necessary to weld to the steel plate, and not only an iron plate but also any other type of plate-like base can be used, and the plate-like base can be used as a ceiling finishing material. Reinforcing bar structural materials can ensure the concrete cover to the upper, lower and truss bars when the concrete is placed on the reinforcing bar structural material by placing the top of the urethane foam below the lower reinforcing bars. it can.

  Reinforced steel structural material in which foamed urethane forms a heat insulation layer with a predetermined thickness on the top surface of the plate-shaped base is formed on the top surface of the plate-shaped base with a heat insulation layer with a predetermined thickness formed by urethane foam. It is possible to add a heat insulation effect to a reinforced concrete structure constructed using a reinforced structural material. Since the reinforcing steel structural material itself has a heat insulating function, it is possible to omit a heat insulating material construction work for separately installing the heat insulating material, and to save labor and cost for the heat insulating material construction work.

  Reinforced structural materials that use non-flammable or flame retardant urethane foam do not spread the foamed urethane in the event of a fire, and the quality performance of reinforced concrete structures built using reinforced structural materials Can be improved.

  Reinforcing bar structural material, which is an adhesive that bonds the wire mesh and the plate base to each other, is required to weld the lower recess of the lattice to the plate base by fixing the wire mesh and the plate base with the adhesive. Not only the iron plate but also any other kind of plate base can be used, and the plate base can be used as a ceiling finishing material.

  Reinforcement structural materials whose plate base is either a metal plate base, a wood plate base, a synthetic resin plate base, or an inorganic plate base use one of them as a plate base They can be used as ceiling finishes. Reinforcement structural materials can use various plate bases as ceiling finishing materials, so it is possible to save the ceiling finishing work for installing the ceiling finishing materials separately, which saves labor and cost for the ceiling finishing work. It can be omitted.

The perspective view of the reinforcing bar structure material shown as an example. The perspective view of the reinforcement structure material of the state before filling with urethane foam. The top view of the reinforcement structure material of the state before being filled with urethane foam. The front view of a reinforcing bar structure material. The side view of the reinforcing bar structure material which abbreviate | omitted illustration of the 2nd engaging part. The top view of the reinforcing bar structure material shown as another example of the state before being filled with urethane foam. The front view of the reinforcing bar structure material shown as another example. The side view of the reinforcing bar structure material shown as another example which abbreviate | omitted illustration of the 2nd engaging part.

  The details of the reinforcing bar structural material according to the present invention will be described below with reference to the accompanying drawings such as FIG. 1 which is a perspective view of the reinforcing bar structural material 10A shown as an example. 2 is a perspective view of the reinforcing bar structural member 10A before filling with the urethane foam 14, and FIG. 3 is a top view of the reinforcing bar structural member 10A before filling with the urethane foam 14. As shown in FIG. FIG. 4 is a front view of the reinforcing bar structural member 10A, and FIG. 5 is a side view of the reinforcing bar structural member 10A with the second engagement portion 20 omitted. 1 and 2, only the first and second engaging portions 19 and 20 of the reinforcing bar structural member 10A adjacent in the width direction are illustrated, and the remaining portions are not illustrated. 1 and 2, the front-rear direction is indicated by an arrow A, the width direction is indicated by an arrow B, and the vertical direction is indicated by an arrow C.

  Reinforcing bar structural member 10A includes a plate-like base 11 having a predetermined area and extending in the front-rear direction, a wire mesh 12 (welded wire mesh) disposed on the upper surface 14 of the plate-shaped base 11, and a rebar truss 13 disposed on the wire mesh 12. And urethane foam 14 (rigid foamed urethane foam) (adhesive means) or adhesive (adhesive means). Reinforcing bar structural member 10A is used to construct a reinforced concrete structure (not shown) such as a ceiling slab, a floor slab, or a roof slab having a predetermined area.

  The plate-like base 11 has both side edges 15a, 15b extending in the front-rear direction, both end edges 16a, 16b extending in the width direction intersecting the front-rear direction, and an upper surface 17 and a lower surface 18. The plate-like base 11 uses an iron plate having a predetermined design (not shown) printed on the lower surface 18 thereof. In addition to the iron plate, the plate-like base 11 can be a metal plate-like base 11 such as an aluminum plate or a stainless plate having a predetermined design printed on the lower surface 18.

  The plate-like base 11 is formed with a recess 36 extending in the front-rear direction with a predetermined distance in the width direction. The recess 36 is a groove that is recessed downward from the upper surface of the plate-like base 11 and has a semicircular cross-sectional shape. The cross-sectional shape of the recess 36 is not particularly limited, and may be a quadrangle or a triangle in addition to the semicircular shape. In FIGS. 3 and 4, seven concave portions 36 are formed in the plate-shaped base 11, but the number of the concave portions 36 is not particularly limited, and the number of the vertical strips 22 of the wire mesh 12 to be described later is set in the plate-shaped base 11. An identical recess 36 is created.

  A first engaging portion 19 is formed on one side edge portion 15a of the plate-like base 11, and a second engaging portion 20 is formed on the other side edge portion 15b. The first engaging portion 19 is a concave portion that is recessed toward the inner side in the width direction of the plate-like base 11, and is formed by bending one side edge portion 15 a of the plate-like base 11. The second engaging portion 20 is a convex portion that protrudes outward in the width direction of the plate-like base 11, and is made by bending the other side edge portion 15 b of the plate-like base 11.

  Each plate-like base 11 inserts the second engagement portion 20 of the other plate-like base 11 into the first engagement portion 19 of one plate-like base 11 and engages the engagement portions 19 and 20 with each other. Thus, the plate-like bases 11 can be connected in the width direction and arranged in the width direction in a state where the plurality of plate-like bases 11 are connected. The vertical and horizontal dimensions, thickness dimension, and area of the plate-like base 11 are not particularly limited, and the vertical and horizontal dimensions, thickness dimension, and area can be freely changed.

  The wire mesh 12 is formed of a plurality of horizontal stripes 21 and a plurality of vertical stripes 22, and extends over substantially the entire area of the plate-like base 11. The horizontal stripes 21 and the vertical stripes 22 are made of a metal bar (iron bar) having a circular cross section obtained by extending iron. The horizontal strips 21 are arranged at substantially equal intervals (predetermined dimensions apart) in the front-rear direction, and are parallel to the upper surface 14 of the plate-like base 11 and between the one side edge 23a and the other side edge 23b of the wire mesh 12. It extends in the width direction. 2 and 3, six horizontal strips 21 are illustrated, but the number of horizontal strips 21 is not particularly limited, and the number of horizontal strips 21 can be freely determined.

  The vertical stripes 22 are arranged (positioned) under the horizontal stripes 21 and are arranged with a predetermined distance in the width direction, and are parallel to the upper surface of the plate-like base 11, while one end edge 24 a of the wire mesh 12 and the other end. It extends in the front-rear direction between the end edges 24b. The horizontal stripes 21 and the vertical stripes 22 are such that the horizontal stripes 21 are positioned on the vertical stripes 22 and the vertical stripes 22 are positioned below the horizontal stripes 21 so that the stripes 21 and 22 are orthogonal to each other. They are fixed by welding at the intersecting portions 25 of these strips 21 and 22.

  The vertical strips 22 of the metal mesh 12 are located in the recesses 36 formed in the plate-like base 11, and the whole is housed (accommodated) in the recesses 36. The horizontal strips 21 of the wire mesh 12 are in contact with the upper surface 17 of the plate-like base 11 because the entire vertical strips 22 are accommodated in the recesses 36. 2 and 3, five vertical stripes 22 are illustrated, but the number of vertical stripes 22 is not particularly limited, and the number of vertical stripes 22 can be freely determined.

  The reinforcing bar trusses 13 are arranged on the wire mesh 12 and extend in parallel in the front-rear direction. Two rebar trusses 13 are arranged and fixed on the wire mesh 12, but the number of rebar trusses 13 disposed on the wire mesh 12 is not particularly limited, and the wire mesh depends on the area of the plate base 11, the size of the rebar trusses 13, and the like. The number of rebar trusses 13 to be arranged on the twelve can be freely determined.

  The reinforcing bar truss 13 is assembled from one upper bar 26, two (a pair) lower bar 27, and two (a pair) first and second lattice bars 28a, 28b. The upper end reinforcement 26 is made of a deformed metal bar (deformed bar) having a plurality of nodes (ribs) on its peripheral surface. The upper end stripes 26 are located between the longitudinal strips 22 adjacent in the width direction, and extend straightly in the front-rear direction with a predetermined distance away from the wire mesh 12 (the upper surface 15 of the plate-like base 11). In each rebar truss 13, the length dimensions of the upper end bars 26 arranged in the width direction in the front-rear direction are substantially the same, and the upper end bars 26 are arranged in parallel.

  These lower end bars 27 are made of a deformed metal bar (deformed bar) having a plurality of nodes (ribs) on its peripheral surface. The lower stripes 27 are located between the vertical stripes 22 adjacent to each other in the width direction (positioned away from the vertical stripes 22 by a predetermined dimension) and are located outside the lattice stripes 28a and 28b. It is located on both sides of the upper end muscle 26 in the width direction. These lower end stripes 27 extend from the wire mesh 12 (the upper surface 15 of the plate-like base 11) upward in a straight line in the front-rear direction at a predetermined distance. In each rebar truss 13, the length dimension of the front-rear direction of the lower end bars 27 arranged in the width direction is substantially the same, and the lower end bars 27 are arranged in parallel.

  The first and second lattice muscles 28a and 28b are made of a steel bar obtained by extending iron. The lattice stripes 28a and 28b are located between the longitudinal stripes 22 adjacent in the width direction (positioned apart from the longitudinal stripes 22 by a predetermined dimension), and the wire mesh 12 (the upper surface 15 of the plate-like base 11) and the upper end. It is located between the muscles 26 and extends in the front-rear direction while repeatedly bending (undulating) in a wavy manner in the vertical direction. The lattice stripes 28a and 28b include an upper convex portion 29 located on the upper end reinforcement 26 side, a lower concave portion 31 located on the wire mesh 12 (upper surface 15 of the plate-like base 11), an upper convex portion 29 and a lower concave portion 31. And an intermediate portion 30 extending in the front-rear direction.

  The angle at which each of the lattice muscles 28a and 28b repeats the bending in a wave shape in a vertical direction is constant, and the number of times the bending of the lattice muscles 28a and 28b per unit length (for example, 1 m) is repeated is the same. The angle at which the lattice muscles 28a and 28b repeat bending in the vertical direction can be freely changed. By adjusting the angle, the height of the lattice muscles 28a and 28b can be adjusted, and the lattice muscle 28a. , 28b can be adjusted in the vertical spacing between the upper protrusions 29, and the vertical spacing between the lower recesses 31 in the lattice muscles 28a, 28b can be adjusted.

  The first and second lattice stripes 28a and 28b are arranged symmetrically in the width direction with the upper end stripe 26 interposed therebetween. Accordingly, the positions of the upper convex portions 29 of the lattice stripes 28a and 28b aligned in the width direction are matched, the positions of the intermediate portions 30 are matched, and the positions of the lower concave portions 31 are matched. The lattice stripes 28a and 28b have the same separation dimension between the upper convex portions 29 adjacent in the front-rear direction, the upper convex portions 29 are arranged at equal intervals in the vertical direction, and between the lower concave portions 31 adjacent in the front-rear direction. The spacing dimensions are equal, and the lower recesses 31 are arranged at equal intervals in the front-rear direction.

  As shown in FIG. 4, the first and second lattice muscles 28 a and 28 b are not perpendicular to the plate-like base 11, but are inclined at a predetermined angle with respect to the plate-like base 11. It spreads outward in the width direction toward the recess 31. There is no restriction | limiting in particular about the inclination angle of these lattice muscles 28a and 28b, The inclination angle can be changed freely. The upward convex portions 29 of the lattice stripes 28a and 28b are bent in a convex shape and are bent so as to be convex upward. The upper convex portions 29 are in contact with the peripheral surface of the upper end stripe 26, and a portion (intersection) of the upper convex portion 29 that intersects the upper end stripe 26 is welded (fixed) to the upper end stripe 26 by spot welding. .

  The intermediate portion 30 of the first and second lattice bars 28a, 28b is located inside the lower end muscle 27, and a portion (intersection) of the intermediate portion 30 that intersects the lower end muscle 27 is spot welded to the lower end muscle 27. It is welded (fixed). The lower concave portions 31 of the lattice stripes 28a and 28b are bent into a concave shape and bent downward in the width direction so as to be parallel to the upper surface 15 of the plate-like base 11 while being bent downward. (Bent outward in the width direction). The lower recess 31 has a bent portion 32 that is bent outward in the width direction and extends in the width direction.

  The bent portions 32 of the lower recesses 31 are positioned on the vertical stripes 22 that extend between the horizontal stripes 21 of the wire mesh 12 adjacent to each other in the width direction while forming an arc so as to be convex outward in the width direction. Yes. The bent portion 32 cross-contacts with two portions of the vertical strip 22 of the wire mesh 12, and an intersection portion 33 that intersects with the two portions of the vertical strip 22 is welded (fixed) to the vertical strip 22 by spot welding. The bent portion 32 is in contact with the upper surface 17 of the plate-like base 11 when the entire vertical strip 22 is accommodated in the recess 36.

  In the reinforcing bar structural member 10A, the lower concave portion 31 of the lattice bars 28a and 28b is not bent outward in the width direction, and the bent portion 32 may not be formed in the lower concave portion 31. In this case, the lower concave portion 31 of the lattice stripes 28a, 28b is positioned on the vertical strip 22 extending between the horizontal strips 21 adjacent in the width direction, and the lower concave portion 31 is in cross contact with one portion of the vertical strip 22, The intersection of the lower recess 31 that intersects one location of the strip 22 is welded (fixed) to the vertical strip 22 by spot welding.

  There are no particular restrictions on the thickness of the upper end muscle 26, the lower end muscle 27, and the lattice muscles 28a and 28b. Accordingly, the thicknesses of the upper muscle 26, the lower muscle 27, and the lattice muscles 28a and 28b can be freely changed. The upper muscle 26, the lower muscle 27, and the lattice bars 28a and 28b are made of iron, but can be made of a metal other than iron. Moreover, when the upper end reinforcement 26, the lower end reinforcement 27, and the lattice stripes 28a and 28b are made of iron, they may be subjected to rust prevention treatment such as plating.

  In the spot welding between the upper end stripe 26 and the upper convex portion 29 of the lattice stripes 28a and 28b and the spot welding between the lower end stripe 27 and the intermediate portion 30 between the lattice stripes 28a and 28b, although not shown, the electrode and the moving mechanism are not shown. An automatic welding machine with is used. An example of spot welding by an automatic welder is to press the upper convex portion 29 of the upper end muscle 26 and the lattice bars 28a, 28b with each electrode and press the intermediate portion 30 of the lower end muscle 27 and the lattice muscles 28a, 28b with each electrode. Meanwhile, the upper end stripe 26 and the upper convex portion 29 are sandwiched between the electrodes, and the lower end stripe 27 and the intermediate portion 30 are sandwiched between the electrodes, and a predetermined current is supplied to the electrodes (a predetermined voltage is applied).

  The currents flowing from these electrodes flow to the upper muscle 26 and the upper convex portions 29 of the lattice muscles 28a and 28b, heat and melt the upper muscle 26 and the upper convex portion 29, and the lower muscles 27 and the lattice muscles 28a and 28b. It flows into the intermediate part 30, and the lower end stripe 27 and the intermediate part 30 are heated and melted. Next, the electrodes are separated from the upper end stripe 26 and the upper protrusion 29, the lower end stripe 27, and the intermediate portion 30, and the upper end stripe 26, the upper protrusion 29, the lower end stripe 27, and the intermediate portion 30 are naturally cooled, and the upper end stripe is increased. 26 and the upper convex portion 29 are welded, and the lower end stripe 27 and the intermediate portion 30 are welded. The reinforcing bar truss 13 is made by spot welding the upper end reinforcement 26 and the upper convex part 29 and spot welding the lower end reinforcement 27 and the intermediate part 30.

  An example of welding by spot welding with an automatic welder between the bent portion 32 of the lower recess 31 of the lattice bars 28a and 28b and the vertical stripe 22 of the wire mesh 12 is to press the bent portion 32 and the vertical stripe 22 with each electrode while pressing them. The bent portion 32 and the vertical strip 22 are sandwiched between electrodes, and a predetermined current is passed through the electrodes (a predetermined voltage is applied). The electric currents flowing from these electrodes flow to the bent portion 32 and the vertical stripe 22 and heat and melt the bent portion 32 and the vertical stripe 22. Next, the electrodes are separated from the bent portion 32 and the vertical stripe 22, the bent portion 32 and the vertical stripe 22 are naturally cooled, and the bent portion 32 and the vertical stripe 22 are welded.

  After spot welding the bent portions 32 of the lower recesses 31 of the lattice bars 28a, 28b and the vertical stripes 22 to fix the vertical stripes 22 of the wire mesh 12 and the bent portions 32 (connect the reinforcing bar trust 13), the wire mesh 12 And the reinforcing bar trust 13 are placed on the upper surface 17 of the plate-like base 11. When the wire mesh 12 and the reinforcing bar trust 13 are placed on the plate-like base 11, the vertical stripes 22 of the wire mesh 12 are placed (positioned) in the recesses 36 of the plate-like base 11.

  Both side portions 23 a and 23 b of the metal mesh 12 are located at both side edge portions 15 a and 15 b of the plate-like base 11, and both end portions 24 a and 24 b of the wire mesh 12 are located at both edge portions 16 a and 16 b of the plate-like base 11. After the wire mesh 12 and the rebar trust 13 are placed on the plate-like base 11, the urethane foam 14 is filled (sprayed) on the upper surface 17 of the plate-like base 11. Although the non-flammable or flame-retardant product is used for the foamed urethane 14, a product that does not have non-flammability or flame retardancy can also be used.

  When the foamed urethane 14 is filled into the upper surface 17 of the plate-like base 11, the foamed urethane 14 covers the entire area of the upper surface 17 of the plate-like base 11 while entering the recess 36 of the plate-like base 11, and The substantially entire area of the strip 22 is covered, and the substantially entire area of the lower concave portion 31 including the bent portions 32 of the lattice bars 28 a and 28 b of the reinforcing bar trust 13 is covered.

  With the horizontal strip 21 of the wire mesh 12 and the bent portion 32 of the lower concave portion 31 in contact with the upper surface 17 of the plate-shaped base 11, the horizontal strip 21 and the vertical strip of the plate-shaped base 11 and the metal mesh 12 are formed by the cured urethane foam 14. 22 is firmly fixed. The vertical strips 22 are fixed to the recesses 36 via the urethane foam 14 while being positioned in the recesses 36 of the plate-like base 11. The cured urethane foam 14 has a thickness dimension that covers the vertical and horizontal strips 21 and 22 of the wire mesh 12 and the bent portions 32 of the lattice lines 28a and 28b.

  The foamed urethane 14 has an uppermost portion 35 above the bent portion 32 and below the lower end stripe 27. The thickness of the foamed urethane 14 in the vertical direction is adjusted to a dimension that can ensure the concrete covering of the upper end stripe 26, the lower end stripe 27, and the truss bars 28a and 28b. The urethane foam 14 forms a heat insulating layer 34 having a predetermined thickness on the upper surface 17 of the plate-like base 11.

  The reinforcing bar structural member 10A has the uppermost portion 35 of the urethane foam 14 positioned below the lower end reinforcement 27 and the thickness dimension in the vertical direction ensures the concrete covering of the upper end reinforcement 26, the lower end reinforcement 27, and the truss reinforcements 28a and 28b. Since the dimensions are adjusted to the possible dimensions, when concrete is placed on the reinforcing bar structural member 10A, it is possible to reliably ensure the covering of the concrete with respect to the upper reinforcement 26, the lower reinforcement 27, and the truss reinforcements 28a and 28b.

  Although not shown in the drawings, after placing the wire mesh 12 and the reinforcing bar trust 13 on the plate-like base 11, an adhesive (bonding means) may be poured into the upper surface 17 of the plate-like base 11. As the adhesive, it is preferable to use either an epoxy-based adhesive or a hot-melt adhesive having a small volume change at the time of curing, but other types of adhesive may be used. When the adhesive is poured into the upper surface 17 of the plate-like base 11, the adhesive spreads over the entire area of the upper surface 17 of the plate-like base 11 and the adhesive flows into the recess 36 of the plate-like base 11.

  After pouring the adhesive, the adhesive is dried and cured. When the adhesive is cured, the horizontal strip 21 of the metal mesh 12 and the bent portion 32 of the lower recess 31 are in contact with the upper surface 17 of the plate-shaped base 11, and the horizontal direction between the plate-shaped base 11 and the metal mesh 12 by the cured adhesive. The strips 21 and the vertical strips 22 are firmly fixed. The vertical strip 22 is fixed to the concave portion 36 via an adhesive while being positioned in the concave portion 36 of the plate-like base 11.

  As an example of constructing a reinforced concrete structure such as a floor slab, a ceiling slab, or a roof slab using the rebar structure material 10A, the first engagement portion 19 and the second engagement portion 20 of the rebar structure material 10A are engaged. Then, the reinforcing bar structural members 10A are connected in the width direction to form an aggregate of the reinforcing bar structural members 10A. Next, the aggregate of the connected reinforcing bar structural members 10A is arranged and fixed between the cross beams of the building. After the aggregate of the reinforcing steel structural members 10A is fixed between the cross beams of the building, concrete (not shown) is placed in a formwork (not shown) from above the reinforcing steel trust 13, and the concrete is fixed for a predetermined period. Take care. When concrete is placed on the reinforcing bar structural member 10A, the plate-like base 11, the wire mesh 12, the reinforcing bar trust 13, and the urethane foam 14 are buried in the concrete. After the concrete curing period elapses, reinforced concrete structures such as floor slabs, ceiling slabs, and roof slabs are completed.

  Since the reinforcing base material 10A can use the plate-like base 11 having a predetermined design printed on the lower surface 18 as a ceiling finishing material, the ceiling finishing work for separately installing the ceiling finishing material can be omitted. This saves labor and costs for ceiling finishing work. In the case of the reinforced structural member 10A, when concrete is cast on the upper surface 17 of the plate-like base 11 and a reinforced concrete structure is made, the plate-like base 11 fixed to the wire mesh 12 with foamed urethane 14 or an adhesive is integrated with the concrete. Therefore, compared with a suspended ceiling structure using suspension bolts, a reinforced concrete structure that does not cause a ceiling drop accident can be constructed even if a shaking due to an earthquake or the like occurs.

  In addition, when the bent portion 32 of the lower concave portion 31 of the lattice bars 28a and 28b is directly welded to the upper surface 17 of the plate-like base 11 (iron plate), not only the upper surface 17 of the plate-like base 11 due to the action of heat during welding, A plurality of welding traces are also generated by welding on the lower surface 18 of the plate-like base 11, and rust is easily generated in the welding traces due to moisture and dew condensation. It is not welded directly to the plate-like base 11, no welding traces are generated on the plate-like base 11, and the occurrence of rust on the plate-like base 11 can be prevented, and the edge of the plate-like base 11 is lowered. Can be prevented.

  Reinforcing bar structural member 10A is welded and fixed to two portions of vertical stripes 22 extending between horizontal stripes 21 of wire mesh 12 where bending portions 32 of lower concave portions 31 of lattice bars 28a and 28b are adjacent in the front-rear direction. The lattice bars 28a, 28b can be securely fixed to the vertical stripes 22 of the wire mesh 12, and the fixation between the reinforcing bar truss 13 and the vertical stripes 22 of the metal mesh 12 is not inadvertently released, and the reinforcing bar structural member 10A Even if bending tensile force, bending compressive force, or shearing force is applied to the placed concrete, the concrete will not be damaged by those forces, and the reinforced concrete having sufficient strength by the reinforced structural member 10A and the concrete. A structure can be constructed.

  In the reinforcing bar structural material 10A, since the heat insulating layer 34 having a predetermined thickness is formed on the upper surface 17 of the plate-like base 11 by the urethane foam 14, the reinforcing bar structural material 10A has a heat insulating function, and the reinforcing bar structural material 10A is used. Heat insulation effect can be added to the constructed reinforced concrete structure. Since the reinforcing bar structural material 10A itself has a heat insulating function, it is possible to omit a heat insulating material construction work for separately installing the heat insulating material, and to save time and cost for the heat insulating material construction work. In addition, since a non-flammable or flame-retardant product is used for the foamed urethane 14, the foamed urethane 14 does not burn and spread in the event of a fire, and the reinforced concrete structure constructed using the reinforced structural material 10A. Quality performance can be improved.

  6 is a top view of a reinforcing bar structural material 10B as another example of a state before filling with urethane foam 14, and FIG. 7 is a front view of the reinforcing bar structural material 10B. FIG. 8 is a side view of the reinforcing bar structural member 10B in which the second engagement portion 20 is not shown. In FIG. 7, only the first and second engaging portions 19 and 20 of the reinforcing bar structural material 10B adjacent in the width direction are illustrated, and the remaining portions are not illustrated. 6 and 7, the front-rear direction is indicated by an arrow A (only in FIG. 6), the width direction is indicated by an arrow B, and the vertical direction (only in FIG. 7) is indicated by an arrow C.

  1 differs from that of FIG. 1 in that the plate-like base 11 is not provided with a recess 36 extending in the front-rear direction, and other configurations are the same as those of the reinforcing bar structure 10A of FIG. Therefore, the same reference numerals as those in FIG. 1 are attached, and the description of FIG. 1 is used, and detailed description of other configurations in the reinforcing bar structure material 10B is omitted.

  The reinforcing bar structural member 10B includes a plate-like base 11 having a predetermined area and extending in the front-rear direction, a metal mesh 12 (welded metal mesh) disposed on the upper surface 17 of the plate-shaped base 11, and a reinforcing bar truss 13 disposed on the metal mesh 12. And urethane foam 14 (adhesion means) or an adhesive (adhesion means). The reinforcing bar truss 13 used for the reinforcing bar structural member 10B is the same as that of the reinforcing bar structural member 10A of FIG. The reinforced structural member 10B is used to construct a reinforced concrete structure such as a ceiling slab, a floor slab, a roof slab or the like having a predetermined area, similar to that of FIG.

  The plate-like base 11 has both side edge portions 15a and 15b and both end edge portions 16a and 16b, a flat upper surface 17 and a flat lower surface 18, and is not formed with a recess 36 extending in the front-rear direction. The plate-like base 11 is a metal plate-like base 11 such as an iron plate, an aluminum plate, or a stainless plate on which a predetermined design (not shown) is printed (printed) on the lower surface 18.

  In addition to the metal plate-like base 11, any one of the wood-based plate-like base 11, the synthetic resin-based plate-like base 11, and the inorganic-based plate-like base 11 can be used as the plate-like base 11. A decorative plywood, a printed plywood, or the like can be used for the wood-based plate-like base 11. A decorative plate made of various synthetic resins can be used for the synthetic resin base plate 11. A plaster board, a rock wool board, etc. can be used for the inorganic type plate-shaped base 11.

  The wire mesh 12 is formed of a plurality of horizontal stripes 21 and a plurality of vertical stripes 22, and extends over substantially the entire area of the plate-like base 11. The horizontal stripes 21 and the vertical stripes 22 are made of a metal bar (iron bar) having a circular cross section obtained by extending iron, as in FIG. The horizontal strips 21 are arranged at a predetermined distance in the front-rear direction, and extend in the width direction between one side edge 23a and the other side edge 23b of the wire mesh 12 in parallel with the upper surface 14 of the plate-like base 11. Yes. In FIG. 6, five horizontal strips 21 are illustrated, but the number of horizontal strips 21 is not particularly limited, and the number of horizontal strips 21 can be freely determined.

  The vertical stripes 22 are arranged (positioned) under the horizontal stripes 21 and are arranged with a predetermined distance in the width direction, and are parallel to the upper surface of the plate-like base 11, while one end edge 24 a of the wire mesh 12 and the other end. It extends in the front-rear direction between the end edge 24b. In FIG. 6, seven vertical stripes 22 are illustrated, but the number of vertical stripes 22 is not particularly limited, and the number of vertical stripes 22 can be freely determined. The horizontal stripes 21 and the vertical stripes 22 are such that the horizontal stripes 21 are positioned on the vertical stripes 22 and the vertical stripes 22 are positioned below the horizontal stripes 21 so that the stripes 21 and 22 are orthogonal to each other. They are fixed by welding at the intersecting portions 25 of these strips 21 and 22.

  The upper convex portion 29 that is bent into the convex shape of the first and second lattice stripes 28 a and 28 b abuts on the peripheral surface of the upper end stripe 26, and a portion (intersection) that intersects the upper end stripe 26 is spotted on the upper end stripe 26. It is welded (fixed) by welding. The intermediate portion 30 of the first and second lattice bars 28a, 28b is located inside the lower end muscle 27, and a portion (intersection) intersecting with the lower end muscle 27 is welded (fixed) to the lower end muscle 27 by spot welding. Yes. The upper convex portion 29 of the upper end muscle 26 and the lattice muscles 28a and 28b and the intermediate portion 30 of the lower end muscle 27 and the lattice muscles 28a and 28b are provided with an electrode and a moving mechanism in the same manner as the reinforcing bar structural member 10A of FIG. Spot welded by a welder.

  The lower concave portions 31 of the lattice stripes 28a and 28b have bent portions 32 that are bent outward in the width direction and extend in the width direction. The bent portions 32 form an arc so as to protrude outward in the width direction. The bent portions 32 are in cross contact with two portions of the longitudinal strip 22 extending between the lateral strips 21 adjacent in the front-rear direction, and the intersecting portion 33 intersecting the two portions of the longitudinal strip 22 is welded to the longitudinal strip 22 by spot welding. (Fixed). The bent portion 32 and the vertical strip 22 are spot-welded by an automatic welding machine including an electrode and a moving mechanism, similarly to the reinforcing bar structural member 10A of FIG.

  In the reinforcing bar structural member 10B, the lower concave portion 31 of the lattice bars 28a, 28b is not bent outward in the width direction, and the bent portion 32 may not be formed in the lower concave portion 31. In this case, the lower concave portion 31 of the lattice stripes 28a and 28b crosses and abuts on one portion of the vertical strip 22 extending between the adjacent horizontal strips 21, and the intersecting portion of the lower concave portion 31 that intersects one portion of the vertical strip 22 is vertical. It is welded (fixed) to the strip 22 by spot welding.

  After spot welding the bent portions 32 of the lower recesses 31 of the lattice bars 28a, 28b and the vertical stripes 22 to fix the vertical stripes 22 of the wire mesh 12 and the bent portions 32 (connect the reinforcing bar trust 13), the wire mesh 12 And the reinforcing bar trust 13 are placed on the upper surface 17 of the plate-like base 11. When the wire mesh 12 and the reinforcing bar trust 13 are placed on the plate-like base 11, both side edges 23a, 23b of the wire mesh 12 are positioned at both side edges 15a, 15b of the plate-like base 11, and both end edges 24a, 24b of the wire mesh 12 are placed on the plate. It is located at both end edges 16a and 16b of the base 11. After placing the wire mesh 12 and the reinforcing bar trust 13 on the upper surface 17 of the plate-like base 11, the urethane foam 14 is filled (sprayed) on the upper surface 17 of the plate-like base 11.

  The urethane foam 14 is the same as that used in the reinforcing bar structural member 10A of FIG. The urethane foam 14 covers substantially the entire area of the upper surface 17 of the plate-like base 11, covers substantially the entire area of the horizontal stripes 21 and the vertical stripes 22 of the wire mesh 12, and bends 32 of the lattice bars 28 a and 28 b of the reinforcing bar trust 13. The substantially whole area of the lower recessed part 31 including is covered. On the upper surface 17 of the plate-like base 11, a heat insulating layer 34 having a predetermined thickness is formed by the cured urethane foam 14.

  In the reinforcing bar structural material 10 </ b> B, the plate-like base 11 and the wire mesh 12 are firmly fixed by the hardened urethane foam 14 in a state where the vertical stripes 22 of the wire mesh 12 are in contact with the upper surface 17 of the plate-like base 11. The cured urethane foam 14 has a thickness dimension that covers the vertical and horizontal strips 21 and 22 of the wire mesh 12 and the bent portions 32 of the lattice stripes 28a and 28b, and the uppermost portion 35 is above the bent portion 32 and the lower end stripes. 27 is located below. The thickness of the foamed urethane 14 in the vertical direction is adjusted to a dimension that can ensure the concrete covering of the upper end stripe 26, the lower end stripe 27, and the truss bars 28a and 28b.

  In the reinforcing bar structural material 10B, the uppermost portion 35 of the urethane foam 14 is located below the lower end reinforcement 27, and the thickness dimension in the vertical direction secures the concrete covering of the upper end reinforcement 26, the lower end reinforcement 27, and the truss reinforcements 28a and 28b. Since the dimensions are adjusted to the possible dimensions, when concrete is placed on the reinforcing bar structural member 10A, it is possible to reliably ensure the covering of the concrete with respect to the upper reinforcement 26, the lower reinforcement 27, and the truss reinforcements 28a and 28b.

  In the reinforcing bar structural member 10B, as in the reinforcing bar structural member 10A of FIG. 1, after placing the wire mesh 12 and the reinforcing bar trust 13 on the plate-like base 11, an adhesive (bonding means) is poured into the upper surface 17 of the plate-like base 11. But you can. When the adhesive is used, the horizontal strips 21 and the vertical strips 22 of the plate-shaped base 11 and the metal mesh 12 are bonded by the cured adhesive in a state where the vertical strips 22 of the metal mesh 12 are in contact with the upper surface 17 of the plate-shaped base 11. Firmly fixed. A procedure for constructing a reinforced concrete structure such as a floor slab, a ceiling slab, or a roof slab using the rebar structure material 10B is the same as a procedure for constructing a reinforced concrete structure using the rebar structure material 10A of FIG.

  In the reinforcing bar structural member 10B, the vertical stripe 22 extending between the adjacent horizontal stripes 21 and the bent portion 32 of the lower concave portion 31 of the lattice bars 28a and 28b are fixed by welding, and the plate-like base 11 and the metal mesh 12 are made of urethane foam 14. Since it is fixed by (adhesive means) or adhesive (adhesive means), it is not necessary to weld the bent portion 32 to the plate-like base 11, and the plate-like base 11 is not limited to an iron plate, but any other kind of plate material ( Any one of a metal plate base 11, a wood plate base 11, a synthetic resin plate base 11, and an inorganic plate base 11) can be used, and the plate material can be used as a ceiling finishing material. it can.

  Since the reinforcing steel structural member 10B can use various plate-like bases 11 as a ceiling finishing material, the ceiling finishing work for separately installing the ceiling finishing material can be omitted. Cost can be saved. In the case of the reinforced structural member 10B, when concrete is cast on the upper surface 17 of the plate-like base 11 and a reinforced concrete structure is made, the plate-like base 11 fixed to the wire mesh 12 with foamed urethane 14 or an adhesive is integrated with the concrete. Therefore, compared with a suspended ceiling structure using suspension bolts, a reinforced concrete structure that does not cause a ceiling drop accident can be constructed even if a shaking due to an earthquake or the like occurs. In the reinforcing bar structural material 10B, the bent portion 32 of the lower concave portion 31 is not directly welded to the plate-like base 11, so that no welding marks are generated on the plate-like base 11, and the occurrence of rust in the plate-like base 11 is prevented. In addition, it is possible to prevent a decrease in the edge of the plate-like base 11.

  In the reinforcing bar structure material 10B, the bent portion 32 of the lower concave portion 31 crosses and comes into contact with two portions of the vertical strip 22 extending between the horizontal strips 21 adjacent to each other in the front-rear direction, and the crossing portion 33 intersecting with the two portions of the vertical strip 22 is formed. Since it is welded to the vertical bar 22, the lattice bars 28a and 28b can be securely fixed to the vertical bar 22 of the wire mesh 12, and the fixing between the reinforcing bar truss 13 and the vertical bar 22 of the metal mesh 12 is inadvertently released. Even if bending tensile force, bending compression force, or shearing force is applied to the concrete placed in the reinforcing bar structural material 10B, the concrete is not damaged by these forces, and the reinforcing bar structural material 10B A strong reinforced concrete structure having sufficient strength can be constructed with concrete.

  In the reinforcing bar structural material 10B, since the heat insulating layer 34 having a predetermined thickness is formed on the upper surface 17 of the plate-like base 11 by the urethane foam 14 cured, the reinforcing bar structural material 10B has a heat insulating function, and the reinforcing bar structural material 10B is used. Heat insulation effect can be added to the constructed reinforced concrete structure. Since the reinforcing bar structural material 10B itself has a heat insulating function, it is possible to omit a heat insulating material construction work for separately installing the heat insulating material, and to save labor and cost for the heat insulating material construction work. In addition, since non-flammable or flame-retardant products are used for the foamed urethane 14, the foamed urethane 14 does not burn and spread in the event of a fire, and the reinforced concrete structure constructed using the reinforced structural material 10B. Quality performance can be improved.

DESCRIPTION OF SYMBOLS 10A Reinforcement structure material 10B Reinforcement structure material 11 Plate-like base 12 Wire mesh 13 Reinforcement truss 14 Foam urethane 15a, b Both-side edge part 16a, b Both-ends edge part 17 Upper surface 18 Lower surface 19 First engagement part 20 Second engagement part 21 Horizontal Strips 22 Vertical strips 23a, b End edges 24a, b Side edges 25 Intersections 26 Upper muscles 27 Lower muscles 28 Lattice muscles 29 Upper convex part 30 Middle part 31 Lower concave part 32 Bent part 33 Intersection part 34 Heat insulation layer 35 Uppermost part 36 Concave part

Claims (10)

In rebar structure materials used for construction of reinforced concrete structures with a predetermined area,
The rebar structure material is disposed on the upper surface of the plate base and has a plate base with a predetermined area having both side edges extending in the front-rear direction and both end edges extending in the width direction intersecting the front-rear direction. A wire mesh extending substantially over the entire area, and a reinforcing bar truss located on the wire mesh and extending in the front-rear direction,
The rebar truss is spaced upward from the wire mesh and extends in the front-rear direction, a pair of lower rebars located between the wire mesh and the upper rebar and extending in the front-rear direction, the wire mesh and the upper rebar And a pair of first and second lattice muscles extending in the front-rear direction while repeatedly bending in a wavy shape in the up-down direction,
In the reinforcing bar structure material, the first and second lattice bars contact the upper end bars, and protrude outward in the width direction from the upper convex portion bent in a convex shape toward the lower concave portion in contact with the wire mesh and bent in a concave shape. The upper protrusions of the lattice bars and the upper end bars are welded and fixed, the intermediate portions of the lattice bars and the lower end bars are fixed by welding, and the lower recesses of the lattice bars and the wire mesh A reinforcing bar structure material, wherein the plate-like base and the wire mesh are fixed by an adhesive means.   The wire mesh is spaced apart by a predetermined dimension in the front-rear direction, a plurality of horizontal stripes extending in the width direction in parallel with the upper surface of the plate-like base, and located below the horizontal stripe and spaced apart by a predetermined dimension in the width direction, 2. The plurality of vertical stripes extending in the front-rear direction in parallel with the upper surface of the plate-like base, and the lower recesses of the first and second lattice bars are welded and fixed to the vertical stripes. Reinforcing bar structural material as described.   The lower recesses of the first and second lattice bars have bent portions that are bent outward in the width direction so as to be parallel to the upper surface of the plate-like base and are in contact with the two vertical strips of the wire mesh, The reinforcing bar structure material according to claim 2, wherein the bent portion is welded and fixed to two portions of the vertical strip.   The horizontal strips adjacent to the wire mesh in the front-rear direction are positioned on both sides in the front-rear direction of the bent portion of the lower recess, and the bent portions of the lower recess extend between the horizontal strips adjacent in the front-rear direction. The reinforcing bar structure material according to claim 3, which is fixed by welding at two locations.   The plate-like base has a recess extending in the front-rear direction with a predetermined distance in the width direction, and the entire vertical strip of the wire mesh is accommodated in the recess, and the horizontal strip of the wire mesh and the bent portion of the lower recess Is fixed to the upper surface of the plate-like base through the bonding means while being in contact with the upper surface of the plate-like base, and the vertical strip of the wire mesh is fixed to the recess through the bonding means. Item 5. The reinforcing bar structure material according to any one of items 2 to 4.   The adhesion means is a urethane foam having a predetermined adhesion function to fix the wire mesh and the plate-like base, and the urethane foam covers the longitudinal and horizontal stripes of the wire mesh and the bent portion of the lattice muscle. The reinforcing bar structure material according to any one of claims 1 to 6, having dimensions, wherein an uppermost portion of the urethane foam is located above the bent portion and below the bottom reinforcement.   The reinforcing bar structure material according to claim 6, wherein the urethane foam forms a heat insulating layer having a predetermined thickness on an upper surface of the plate-like base.   The reinforcing bar structure material according to claim 6 or 7, wherein the urethane foam is nonflammable or flame retardant.   The reinforcing bar structure material according to any one of claims 1 to 5, wherein the bonding means is an adhesive for fixing the wire net and the plate-like base. The reinforcing plate structure material according to any one of claims 1 to 9, wherein the plate base is any one of a metal plate base, a wood plate base, a synthetic resin plate base, and an inorganic plate base. .

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