JP2002201753A - Deck assembled with reinforcing steel bar and floor forming method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deck assembled with reinforcing steel bars and a floor forming method using the deck. SOLUTION: In a deck assembled with reinforcing steel bars comprising (i) triangle trusses and (ii) filling members, (iii) the filling members are column- shaped foamed molded products made of a synthetic resin, (iv) the foamed molded product 5 has a plurality of wing members 6 penetrated along the length direction (bar-shaped members may be used instead of the wing members), (v) the wing members 6 have (a) shapes such as plate-shaped, drilled plate- shaped or a combination of these, (b) foamed, molded products 5 penetrated almost horizontally, (c) both the end portions of the wing members protruded to both the right and left sides are extended to a gap portion of the wave peak position of the lattice bars, (d) width of both the wing end portion being narrower than the wave-shaped pitch interval of the lattice bar, and at the time of placing concrete, and a reinforcing steel bar assembled deck with a construction capable of linking the wing member to the wave peak position of the lattice bar and a floor forming method by using this deck.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to
More specifically, in a reinforcing bar built-in deck in which a triangular truss and an embedding material are arranged in parallel and alternately and in a plane, as the embedding material, wing members arranged along a length direction are used. TECHNICAL FIELD The present invention relates to a reinforcing bar built-in deck using a columnar synthetic resin foam molded article having the same, and a floor forming method for forming, for example, a concrete floor using the deck.

[0002]

2. Description of the Related Art Reinforced decks in which triangular trusses and embedding materials are arranged side by side and alternately and substantially in a plane are used for forming floors in buildings, for example, floors made of hollow concrete. Widely used. FIG. 9 shows a perspective view of an example of a conventional reinforcing bar built-in deck. A triangular truss in which one upper chord 1 and two lower chords 2 are joined by a corrugated lattice 3 is arranged on the bottom plate 4 at predetermined intervals. Spiral pipes 8 are arranged between the triangular trusses at predetermined intervals from the triangular trusses, and are arranged alternately and substantially in a plane in parallel with the triangular trusses.

FIG. 10 shows a state in which a spiral tube is mounted on a triangular truss in the reinforcing bar built-in deck of FIG. Simply placing the spiral tube 8 on the bottom plate 4 does not fix the position of the spiral tube 8, and when the concrete slurry is injected, the spiral tube 8 rises above the concrete slurry. Therefore, for example, the upper and lower sides of the spiral tube 8 are sandwiched between two setup streaks 9 and 10. The setup muscle 9 is fixed to the two lower chord muscles 2, and the setup muscle 10 is fixed to the upper force distribution muscle 11 via the upper joint muscle 12. By pouring concrete into the reinforcing bar built-in deck thus formed, the floor 1
3 is formed.

[0004]

When the method shown in FIG. 10 is used, the spiral tube 8 can be fixed at a predetermined position of the triangular truss. However, since the fixing operation of the spiral tube 8 must be performed on site. The construction is complicated. In addition to the above-mentioned method, there is a method of fixing the spiral tube 8 at a predetermined position of the triangular truss using, for example, a wire or a metal fitting, but the construction is similarly complicated. Therefore, in forming a floor using a reinforcing bar built-in deck, the rebar built-in deck, which is easier to construct than conventional technology, improves workability, and can shorten delivery time, and uses the same. A floor forming method was required.

The present invention has been made to solve the above-mentioned problems of the prior art. It is an object of the present invention to facilitate construction, improve workability, shorten delivery time,
It is an object of the present invention to provide a reinforcing bar built-in deck capable of reducing a floor forming cost and a floor forming method using the same.

[0006]

That is, the present invention provides a reinforcing bar built-in deck comprising: (i) a triangular truss in which one upper chord and two lower chords are joined by a corrugated lattice; And (i
i) In a reinforcing bar built-in deck in which the embedding materials are arranged in parallel in a substantially planar manner, (iii) the embedding material is a columnar synthetic resin foam molded product, and (iv) the foam molded product is (V) the wing member has a shape composed of (a) a plate, a perforated plate, or a combination thereof, and (b) the wing member has a plurality of wing members extending along the length direction thereof. (C) both end portions of the wing member protruding to the left and right sides of the foam molded product are extended to a gap portion of the wave crest portion of the lattice streak; (d) the two wing ends The width of the portion is smaller than the pitch interval of the lattice of the lattice, and the structure is such that the wing member can be locked to the wave crest portion of the lattice when the concrete is poured. Called.] The following rebar built-in decks are preferred. B) The deck in which the column-shaped synthetic resin foam molded product is a cylindrical synthetic resin foam molded product. C) The deck in which the synthetic resin foam molded product is a polystyrene foam molded product. D) The reinforcing-bar-installed deck according to any one of a to c, wherein the wing member is formed by a perforated plate having a through hole in a plane portion. E) The reinforcing-bar-incorporating deck according to any one of a to d, wherein the wing member extends through a gap between the lattice ridges of the lattice bar at predetermined intervals. Another reinforcing bar built-in deck of the present invention comprises (i) one upper chordal bar,
A triangular truss joined to each of the two lower chords by corrugated lattice bars, and (ii) a reinforcing bar built-in deck in which the embedding materials are arranged substantially in parallel in a plane. The filling material is a columnar synthetic resin foam molded product, (iv) the foam molded product has a plurality of rod-shaped members penetrating along its length direction, (v) the rod-shaped member, (a) are arranged in the longitudinal direction of the foam molded article at a predetermined interval from each other, and a pair of the two pieces, (b) penetrate the foam molded article substantially horizontally,
(c) Both ends of the rod-shaped member protruding to the left and right sides of the foam molded product are extended to the gap between the wave crest portions of the lattice streak, and (d) two ends of the rod-shaped member protruding to the left and right sides The interval between the bars is narrower than the pitch interval of the corrugations of the lattice, and the structure is such that the wing member can be locked to the corrugated portion of the lattice when the concrete is poured. , F). Further, the floor forming method of the present invention, by using a reinforcing bar built-in deck according to any one of the above-mentioned a to f, after arranging the triangular truss and the embedding material in parallel, by performing concrete driving Characterized by forming a reinforced concrete floor.

<Operation / Basic Principle> The operation / basic principle of the reinforcing bar built-in deck of the present invention will be described below. In the reinforcing bar built-in deck of the present invention, a columnar synthetic resin foam molded product is used as the embedding material. This foam molded article has a plurality of wing members penetrating along its length direction. The wing member has a plate shape, a perforated plate shape, or a combination thereof. Further, the wing member penetrates the foam molded product substantially horizontally, and both end portions of the wing member protruding to the left and right sides of the foam molded product are extended to a gap portion of the lattice peak of the lattice streak. Since the width of the two wing tips is smaller than the pitch of the lattice of the lattice, the triangular truss and the foam molded product are initially formed in a substantially flat parallel on a suitable bottom plate. Articles are lying on the bottom plate. When the concrete slurry is poured onto the reinforcing bar built-in deck of the present invention, the foam molded product floats on the concrete slurry, but when the foamed product floats a predetermined distance, both wing ends are locked to the corrugated portions of the lattice bars. Stops and is positioned automatically. Further, by injecting and solidifying the concrete slurry, it is possible to form a concrete floor in a state where the foam molded article is fixed at a predetermined position of the triangular truss.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As a triangular truss which can be used for a reinforcing bar built-in deck of the present invention, a conventional one can be used as it is. In the reinforcing bar built-in deck of the present invention, a columnar synthetic resin foam molded product is used as an embedding material. The columnar form may be appropriately selected within a range in which the object of the present invention can be achieved, and specifically, may be, for example, a columnar form, an elliptical form, a rectangular form, or a combination thereof. However, for example, in the case of adopting a prismatic column shape, a shape in which the corners of the prism do not obstruct the flow of the concrete slurry poured from above [for example, FIG. 4 (c), FIG.
(D)) must be adopted. The synthetic resin used for the foamed molded product may be a material commonly used in the field of the foamed molded product, for example, polystyrene, polypropylene, polyethylene, or a blend of these or other synthetic resins with each other. . In addition, it is necessary to arrange the wing members arranged along the length direction of the column-shaped synthetic resin foam molded article. A through hole for inserting the wing member may be provided in advance in the pillar-shaped synthetic resin foam molded product, but it is convenient to use a method in which the wing member is pressed into the foam molded product and penetrated therethrough. Therefore,
As the material, a material through which the wing member can easily penetrate, for example, polystyrene is preferable.

The shape of the wing member may be a plate, a perforated plate, or a combination thereof, and the size is appropriately selected. Instead of the wing member, a pair of rod members may be used, and the size thereof is appropriately selected. The material of the wing member or the rod-shaped member is not particularly limited, but may be, for example, metal, plastic, or a combination thereof.

In order to attach the wing member or the rod-shaped member to the foam molded article, the wing member or the rod-shaped member is attached so as to penetrate the foam molded article substantially horizontally. Further, both wing ends of the wing member or both ends of the rod-shaped member,
It is made to protrude on both sides of the foam molded article. When arranging a triangular truss and a columnar synthetic resin foam molded article in parallel in a substantially planar shape, both wing ends of the wing member or both end portions of the rod-shaped member extend to a gap between wave peak portions of the lattice lattice. It is arranged to extend. The interval between the wing members or the two rod-shaped members is matched with the interval (pitch) between the wave crest portions of the lattice members, so that both wing ends of the wing members or both end portions of the rod members are at the crest portions of all the lattice bars. The gap may be extended to the gap, or the gap between the wave crest portions of the lattice muscle may be provided at a fixed number (for example, every other) of both wing ends of the wing member or both end portions of the two rod-shaped members. You may make it penetrate a part.

The width of both wing ends of the wing member or both end portions of the rod-shaped member is a predetermined width smaller than the pitch of the lattice of the lattice, and when the concrete is cast, the wing member has a wave crest of the lattice. A structure that can be locked to the site By appropriately selecting the width of both wing ends of the wing member or both end portions of the rod-shaped member, the position of the column-shaped synthetic resin foam molded product with respect to the triangular truss can be adjusted.

[0012]

The present invention will be described in more detail with reference to the following examples. The following examples illustrate the present invention specifically, but are for explanation only, and the present invention is not limited by these examples.

FIG. 1 shows a reinforcing bar built-in deck according to a first embodiment of the present invention. A triangular truss in which one upper chord 1 and two lower chords 2 are joined by a corrugated lattice 3 is a bottom plate 4
Are arranged at predetermined intervals. Between each triangular truss, a columnar synthetic resin foam molded article 5 is arranged in parallel with the triangular truss, alternately and in a plane, with a predetermined interval between the triangular truss. I have. In the example of FIG. 1, a columnar polystyrene foam molded product was used as the foam molded product 5.

FIG. 4 is a cross-sectional view in the direction perpendicular to the length direction of various columnar synthetic resin foamed products which can be used in the reinforcing bar built-in deck of the present invention. FIG.
4 (a) is a circular cross section, FIG. 4 (b) is an elliptical cross section, FIG.
4C shows a pentagonal cross section, and FIG. 4D shows a regular hexagonal cross section. It should be noted that a pentagon (a shape obtained by cutting the lower part of a rectangle into an inverted triangle) as shown in FIG. 4C is not the regular pentagon but the upper part (upper side in the figure) of the columnar synthetic resin foam molded article.
When the concrete slurry is poured from the container, the flow of the concrete slurry is not obstructed by the columnar synthetic resin foam molded article, which is advantageous.

The foam molded article 5 of FIG. 1 has wing members 6 arranged along the length direction. In the example of FIG.
As the wing member 6, a rectangular metal holding member shown in FIG. 4 was used. Instead of a metal retainer, a plastic retainer may be used. 4A is a top view of the wing member 6 of FIG. 1, and FIG. 4B is a side view of the wing member 6 of FIG. The wing member 6 of FIG. 4 is provided with track-shaped through holes 7 at predetermined intervals in the length direction. The size and shape of the through-hole 7 may be appropriately selected. For example, the shape may be a circle, an ellipse, a polygon (for example, a triangle, a square, a pentagon, a hexagon) other than the track shape. It may be. When pouring concrete slurry from the upper part of the wing member (upper side in FIG. 4B), the through-hole 7 formed in the wing member 6
This is advantageous because the concrete slurry flows through.

FIG. 6 shows various examples of the plate-like wing member 6 (one side only; left side in the figure). These are all examples of the wing member 6 having a rectangular plate shape, but the wing member 6 may of course have another plate shape. 6 (a) is a rectangle, FIG. 6 (b) is a rectangle having a sharp point at the center of the tip, FIG. 6 (c) is a rectangle having a sharp point on one side of the tip, and FIG. A plate having a rectangular shape having an elliptical protrusion at the center, FIG. 6 (e) is a rectangle having a nose-shaped protrusion on one side of the tip, and FIG. 6 (f) is a rectangle having a sawtooth-shaped protrusion at the tip. It is an example of a wing member 6. FIG.
It is more preferable to provide a through hole 7 like the wing member 6 of FIG. 6A in the wing member 6 of FIG. Also, as shown by a broken line II in FIG. 6B, a sharp portion or a protruding portion provided at the distal end is provided in a direction (right side in the figure) opposite to the direction shown by the solid line I (left side in the figure). Is also good. Further, FIG.
When the tip of the sharp portion provided at the tip of the wing member 6 is appropriately cut (or rounded) as shown by the broken line III, it is possible to prevent injuries to persons and damage to objects due to the sharp portion. The right side of the plate-shaped wing member 6 may have the same shape as the left side, or may have a different shape.

FIG. 7 shows various examples (only one side; left side in the figure) of the wing member 6 having a perforated plate shape. The shape of the perforated wing member 6 may be, for example, a shape corresponding to the shape of the wing member 6 in FIG. Specifically, for example, FIG. 7 (a) is a rectangle, FIG. 7 (b) is a rectangle having a sharp portion at the center of the tip, FIG. 7 (c) is a rectangle having a sharp portion on one side of the tip,
It is an example of the wing member 6 in the form of a perforated plate. Perforated plate-shaped wing member 6
In this case, similarly to FIG. 6 (b), a sharp portion may be provided at the tip so as to be depressed inward, or the tip of the sharp portion at the tip may be appropriately cut (or rounded). Is also good. The cross-sectional shape in a direction perpendicular to the length direction of the perforated plate may be various shapes, for example, a rectangular shape or a triangular shape (an edge is provided at an end). The right side of the perforated wing member 6 may have the same shape as the left side, or may have a different shape.

FIG. 8 shows various examples of the bar-shaped members 6 'and 6 ". The bar-shaped members 6' and 6" are, for example, shown in FIG. Use books as a set. The interval is appropriately selected to be smaller than the widest interval of the waveform of the lattice 3 in FIG. The two rod-shaped members 6 ', 6 "may have the same length as shown in FIG. 8A, or may have different lengths.
6 "can be used in either a solid form or a hollow form (tube form). The distal ends of the rod-shaped members 6 ', 6" may have various shapes. 8 (b) to 8 (d)
FIGS. 8A and 8B show various examples (only one side; left side in the figure) of the tip end shape of the solid rod member 6 ′ (or 6 ″) corresponding to the portion IV surrounded by the broken line in FIG. The rod-shaped member 6 ',
The shape of the tip of 6 ″ is, for example, the plate-like wing member 6 shown in FIG.
May be a shape corresponding to or similar to the shape of. Specifically, for example, FIG. 8B shows a shape having a sharp point at the center of the tip, FIG. 8C shows a shape obtained by diagonally cutting the tip, and FIG. A shape with an elliptical protrusion,
This is an example of the bar-shaped member 6 ′ (or 6 ″).
Also in (or 6 ″), similarly to FIG. 6B, the tip of the sharp portion at the tip may be appropriately cut (or rounded).

FIG. 2 shows a front view of the reinforcing bar built-in deck of FIG. FIG. 3 shows a side view of the reinforcing bar built-in deck of FIG. FIGS. 2 and 3 show a state in which concrete has been cast. It can be clearly seen that the foam molded product 5 is locked at a predetermined position of the lattice streak 3 by the wing member 6.

[0020]

As described above, in the reinforcing bar built-in deck of the present invention, when a floor is formed by using the same, a pillar-shaped synthetic resin foam molded product that floats on the concrete slurry when the concrete slurry is poured into the deck is used as the wing. Since it is automatically locked and fixed at the predetermined position of the lattice bar by the member or the bar-shaped member, there is no need to fix the triangular truss and the embedding material one by one in advance like a conventional reinforcing bar built-in deck, It is easy, the workability is improved, the delivery time can be shortened, and the floor formation cost can be reduced. In addition, the floor forming method of the present invention can efficiently form a floor made of reinforced concrete by using the reinforcing bar built-in deck of the present invention.

[Brief description of the drawings]

FIG. 1 is a perspective view of an example of a reinforcing bar built-in deck of the present invention.

FIG. 2 is a front view of the reinforcing-bar built-in deck of FIG.

FIG. 3 is a side view of the reinforcing-bar built-in deck of FIG. 1;

FIG. 4 is a cross-sectional view in a direction perpendicular to the length direction of an example of a foam molded product used in a reinforcing bar built-in deck of the present invention.

FIG. 5 is a top view and a side view of an example of a wing member used in the reinforcing bar built-in deck of the present invention.

FIG. 6 is an explanatory view showing an example of a plate-shaped wing member.

FIG. 7 is an explanatory view showing an example of a perforated plate-shaped wing member.

FIG. 8 is an explanatory view showing an example of a rod-shaped wing member.

FIG. 9 is a perspective view of an example of a conventional reinforcing bar built-in deck.

FIG. 10 is an explanatory view showing a state where a spiral tube is assembled to a triangular truss in the reinforcing-bar assembly deck of FIG. 9;

[Brief description of reference numerals]

1: Upper chord 2: Lower chord 3: Lattice 4: Bottom plate 5: Foam molded product 6: Wing member 6 ', 6 ": Bar-shaped member 7: Through hole 8: Spiral tube 9, 10: Setup bar 11: Upper end Distributor 12: Upper joint 13: Floor

Claims (7)

[Claims] (I) a triangular truss in which one upper chord and two lower chords are joined by a corrugated lattice;
(ii) In a reinforcing bar built-in deck in which the embedding materials are arranged substantially in parallel in a plane, (iii) the embedding material is a columnar synthetic resin foam molded product, and (iv) the foam molded product is Having a plurality of wing members penetrating along its length direction, (v) the wing member has a shape consisting of (a) a plate, a perforated plate or a combination thereof, (b) (C) both end portions of the wing member protruding to the left and right sides of the foam molded product are extended to a gap portion of the wave crest portion of the lattice streak; (d) the two wings The width of the end portion is smaller than the pitch interval of the lattice of the lattice, and at the time of placing the concrete, the wing member has a structure capable of being locked to the wave crest portion of the lattice. deck. 2. The deck according to claim 1, wherein the column-shaped synthetic resin foam molded product is a cylindrical synthetic resin foam molded product. 3. The deck according to claim 2, wherein the synthetic resin foam molded product is a polystyrene foam molded product. 4. The reinforcing bar built-in deck according to claim 1, wherein the wing member is formed by a perforated plate having a through hole in a plane portion. 5. The reinforcing-bar built-in deck according to claim 1, wherein the wing member extends through a gap at a wave crest portion of the lattice muscle at predetermined intervals. (I) a triangular truss in which one upper chord and each of two lower chords are joined by a corrugated lattice;
(ii) In a reinforcing bar built-in deck in which the embedding materials are arranged substantially in parallel in a plane, (iii) the embedding material is a columnar synthetic resin foam molded product, and (iv) the foam molded product is (V) the rod-shaped members are arranged in the longitudinal direction of the foam molded article at a predetermined interval from each other; (B) penetrates the foam molded article substantially horizontally, and (c) both ends of the bar-shaped member protruding to the left and right sides of the foam molded article are extended to the gaps between the wave mountains of the lattice lattice. (D) the interval between the two rods at both ends of the rod-shaped member protruding to the left and right sides is smaller than the pitch interval of the corrugation of the lattice, and when the concrete is cast, the wing member is A reinforcing bar built-in deck characterized in that it has a structure capable of being locked to a wave mountain portion of a lattice bar. 7. A reinforced concrete building using the reinforcing bar built-in deck according to any one of claims 1 to 6, arranging a triangular truss and an embedding material in parallel, and then pouring concrete. A floor forming method comprising forming a floor.