JPH10169065A - Deck plate with truss and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to use a deck plate formed of a colored steel plate or previously finished material without applying a welding process to connection between a truss and the deck plate. SOLUTION: A front triangular solid truss 10 is formed of main reinforcements 1, 8 and a wave-form reinforcement 4, and a laterally elastically deformable locking part 7 is formed in a lower end part. A base plate (deck plate) 17 forms a receiving part 15 which can lock the locking part 7(a). The solid truss 10 is elastically deformed to change a distance between the locking parts 7(b), and the solid truss 10 is mounted on the base plate 17 (c). The elastic deformation of the solid truss 10 is released to mutually engage the locking part 7 and the receiving part 15 for forming the deck plate with a truss (d).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deck plate with a truss and a method for manufacturing the same.

[0002]

2. Description of the Related Art Hitherto, various trusses have been fixed on a substrate (deck plate) to form a deck plate with a truss having a function also as a spacer for reinforcing and arranging a reinforcing bar and a reinforcing bar for a floor.

[0003]

In the prior art, the truss is fixed to the deck plate by spot welding the lower edge of the truss to the deck plate. Therefore,
Since welding marks are formed on the lower surface of the deck, using the deck plate as it is as a ceiling finishing material has a poor appearance and has a design problem. In addition, when a colored iron plate that has been painted in advance is used for the deck plate, welding cannot be performed, and even when welding is performed, there is a problem in that the substrate is deteriorated at the welded portion, the paint is peeled off, and dirt is generated. Was.

[0004]

According to the present invention, a deck plate with a truss is formed by locking and fixing a locking portion of a three-dimensional truss and a receiving portion of a substrate.

That is, the present invention provides a deck plate with a truss having a three-dimensional truss fixed on a predetermined substrate.
A deck plate with a truss, wherein a locking portion is provided at a lower end portion of the space truss, and the locking portion of the space truss is locked and fixed to a receiving portion of the substrate. Further, in the above, two wavy reinforcing bars are arranged in parallel in an isosceles triangle shape with the upper main reinforcing bar as a vertex, the upper edges of the main reinforcing bar and the wavy reinforcing bar are fixed to each other, and Is a deck plate with a truss that fixes a lower main reinforcing bar along the line and bends substantially horizontally with the lower ends of the two corrugated reinforcing bars facing outward.

According to the invention of the manufacturing method, a locking portion which can be elastically deformed in the lateral direction is formed at the lower end of the space truss, and a receiving portion which can be locked to the locking portion is formed on a predetermined substrate. Elastic deformation of the space truss, changing the distance between the locking parts,
On the substrate, a space truss is placed corresponding to a receiving portion, and subsequently, the elastic deformation of the space truss is released, and the locking portion and the receiving portion are engaged to form a deck plate with a truss. A method for manufacturing a deck plate with a truss, characterized by being formed. Further, in the above method, there is provided a method of manufacturing a deck plate with a truss, wherein a predetermined paint is applied in advance or a sheet or other finishing means is attached to at least the lower surface of the substrate before attaching the three-dimensional truss.

The finishing means in the above is a finishing means for a ceiling, and is various materials applied to the lower surface of the substrate.
In addition to the paint, the form is not limited, such as a sheet or a plate.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Two corrugated rebars are arranged side by side in an isosceles triangular shape with the upper rebar as the apex, and the upper edges of the upper rebar and the corrugated rebar are fixed to each other. The lower ends of both corrugated rebars are bent outward substantially horizontally to form a locking portion. A three-dimensional truss is formed by fixing a lower main reinforcing bar along the length direction to a wavy reinforcing bar. A receiving portion is formed on a substrate (deck plate) at a position and a shape corresponding to the locking portion of the space truss.

The three-dimensional truss arranged on the substrate is elastically bent so that the locking portion approaches, is placed on the substrate, and the locking portion and the receiving portion face each other. Release the bending of the space truss,
The three-dimensional truss and the substrate are fixed by engaging the locking portion and the receiving portion to form a deck plate with a truss.

[0010]

The three-dimensional truss is fixed to the receiving part of the board to fix the three-dimensional truss to the board, so that welding is not required and the truss and the board are integrally formed. Deck plate can be configured.

[0011]

Embodiment 1 An embodiment of the present invention will be described with reference to the drawings.

First, the configuration of the space truss 10 used in the embodiment of the present invention will be described.

The upper main reinforcing bar (upper reinforcing bar) 1
The two corrugated reinforcing bars 4 are arranged side by side in an isosceles triangle. The upper main reinforcing bar 1 and the upper ends 5, 5 of the corrugated reinforcing bars 4 are welded to each other. The lower ends 6, 6 of the corrugated reinforcing bar 4 are bent substantially horizontally outward, and these portions are referred to as locking portions 7, 7.

The lower main rebars (lower rebars) 8, 8 outside the corrugated rebars 4, 4 and in parallel with the corrugated rebar 4, are fixedly welded, respectively. The space truss 10 is configured as described above (FIG. 7).

The space truss 10 can be elastically deformed so that the lower end 6 side (locking portion 7) of the corrugated reinforcing bars 4, 4 approaches.

The substrate (deck plate) 17 used in the present invention will be described. Connection strips 13 and 14 that can be fitted to an adjacent board are formed on the connection side edge of the plate member 12 having a predetermined length (corresponding to the length of the space truss). A receiving portion 15 corresponding to the locking portion 7 of the space truss 10 is formed at a substantially central portion of the plate 12 so as to face the receiving portion 15. The receiving portion 15 is raised from the upper surface of the plate member 12 by an amount corresponding to the diameter of the corrugated reinforcing bar 4 (the height of the locking portion 7), and further bent inward to form a ridge having an inverted L-shaped cross section. Is formed. The board 17 is formed by bending the predetermined plate member 12 so as to have the above-described shape (FIG. 3). At least the lower surface 19 of the substrate 17 is coated with a predetermined color before or after the plate material 12 is bent. The width D and the length L of the substrate are appropriately selected and manufactured depending on the place of use (FIGS. 3 and 5).

Next, the space truss 1 is placed above the substrate 17.
0 (FIG. 1 (a)), and shrink so that the lower ends 6, 6 of the space truss 19 approach each other (arrows 21, 2).
(1 direction), elastically bend (FIG. 1B), and placed on the upper surface of the substrate 17 as it is (FIG. 1C). Subsequently, the pressing is released, and the locking portions 7, 7 of the space truss 10 are fitted and locked in the receiving portions 15, 15 of the board 17, and the space truss 10 is fixed to the board 17. The trussed deck plate 22 is configured as described above. In the above description, the edges 3, 3, 9, 9 of the upper and lower main reinforcing bars 1, 8 of the space truss 10 project outward from the edges 20, 20, of the substrate 17, and the upper and lower main reinforcing bars 1, 8 end. A connecting rod 23 for connecting to the beam is fixed to the edge. The connecting rod 23 is welded to the space truss 10 in advance, or is welded to the space truss 10 at a construction site.

When constructing a concrete floor in a building, the deck plate 17 with the truss is used as a driving form in the same manner as a conventional deck plate. In parallel, adjacent substrates 17
(See FIG. 3).
At this time, the connecting rods 23 are fixed to the flange 25 of the steel beam and used (FIG. 4).

A predetermined floor reinforcement is provided on the deck plate 22 with the truss, and the floor can be constructed after concrete is placed (supports between the slabs on the lower floor are basically unnecessary). . Since the lower surface 18 of the substrate 17 of the deck plate 22 with truss is painted, the ceiling surface can be configured as it is.

In the above description, the engagement work between the locking portions 7, 7 of the space truss 10 and the receiving portions 15, 15 of the substrate 17 will be described.
Although both sides were performed at once, after the engagement part 7 on one side and the receiving part 15 were engaged, the space truss 10 was pressed and elastically bent (FIG. 2), and the engagement part 7 on the other side was It can also be inserted and engaged with the receiving portion 15 (FIG. 1D).

In the above, the insertion of the locking portion 7
The locking portions 7 on one side can be engaged all at once, or one or more for each waveform (not shown).

In the above description, the same deck plate 22 with truss was used.
The substrate (deck plate) on which the plate 4 is formed and the deck plate 22 with truss can be used in combination (not shown).

In the above embodiment, the lower main reinforcing bar 8
8 is fixed to the outside of the corrugated reinforcing bars 4, 4, but can also be fixed to the inside (8a in FIG. 7 (c)).

In the above embodiment, the connecting rod 23
Used a steel beam, but when using a formwork for the beam, a connecting rod having another conventional structure is used (not shown). Further, if means for temporarily fixing to another steel beam or beam form is formed, the connecting rod can be omitted (not shown).

Further, in the above embodiment, the connecting strip 13,
14 is not limited to the structure shown, and
As long as the edges can be connected to each other, another conventional connection structure can be used (not shown).

Further, in the above embodiment, the substrate 17 is coated, but various sheets or finished plates may be attached to the lower surface 18 (not shown).

In the above-described embodiment, the substrate 17 is formed by bending a plate material. However, the substrate 17 may be formed by fixing a receiving portion having a similar structure made of another member (not shown).

In the above embodiment, the space truss 1
Although 0 is attached to one side of the substrate 17, it can be attached to the center (not shown).

In the above embodiment, the space truss 1
0 is attached to one substrate 17, but two or three or more can be attached in parallel (not shown).

In the above embodiment, the space truss 1
The other structure can be adopted as long as the engagement portion 7 of the zero and the receiving portion 15 of the substrate 17 can be engaged with each other. For example, the receiving portion 15 of the substrate 17 is formed by a ridge having an inverted L-shaped cross section over the entire length, but may be formed by forming a protrusion at each position of the locking portions 7 of the space truss 10. Yes (not shown). When such a receiving portion is configured, the lower end portion 6 of the corrugated reinforcing bar 4 of the space truss can be used as a locking portion without bending in a substantially horizontal direction (shown in the figure). Absent).

[0031]

Since the deck plate with the truss is constituted by locking and fixing the three-dimensional truss and the substrate, there is an effect that welding is unnecessary and the manufacture of the deck plate with the truss can be simplified. In addition, since welding and mounting hardware are not required, even if the substrate is painted or various finishing materials in advance, the finishing materials will not be stained. Further, since welding is not required, it is not necessary to limit the material of the substrate or the finishing material on the lower surface of the substrate to a conductive material, and an aluminum-based or resin-based material can be used, and the range of material selection can be expanded.

Therefore, the ceiling of the structure can be preliminarily finished on the lower surface of the substrate with a color steel plate or various finishing materials. Therefore, it is not necessary to construct a scaffold for finishing the ceiling, and the construction can be simplified and the construction period can be shortened as a whole.

Further, since the locking portion is formed on the substrate, there is an effect of reinforcing the substrate.

[Brief description of the drawings]

FIGS. 1A to 1D are schematic front views illustrating a manufacturing method according to an embodiment of the present invention.

FIG. 2 is a schematic front view of the embodiment of the present invention during production.

FIG. 3 is an enlarged front view of the deck plate with a truss of the present invention.

FIG. 4 is a side view of the same.

5A is a plan view and FIG. 5B is a bottom view.

FIG. 6 is an enlarged cross-sectional view taken along line AA of FIG.

FIG. 7 is a space truss used in the embodiment of the present invention;
(A) is a side view, (b) is a plan view, (c) is B in (a).
It is sectional drawing in the -B line.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper main reinforcing bar (upper reinforcing bar) 4 Corrugated reinforcing bar 5 Upper end portion (corrugating reinforcing bar) 6 Lower end portion (corrugating reinforcing bar) 7 Locking portion (corrugating reinforcing bar) 8 Lower main reinforcing bar (lower reinforcing bar) 10 Space truss 12 Plate material 13, 14 Connection Article 15 Receiving part 17 Substrate (deck plate) 18 Upper surface (substrate) 19 Lower surface (substrate) 22 Deck plate with truss 26 Space truss 27 Locking part 28 Substrate 29 Receiving part 30 Deck plate with truss

Claims (4)

[Claims] 1. A deck plate with a truss having a space truss fixed on a predetermined substrate, wherein a locking portion is provided at a lower end portion of the space truss, and the locking portion of the space truss is mounted on a receiving portion of the substrate. Deck plate with truss, characterized by locking and fixing. 2. An upper main reinforcing bar serving as a vertex, two corrugated reinforcing bars are arranged side by side in an isosceles triangular shape, and the upper edges of the main reinforcing bar and the corrugated reinforcing bars are fixed to each other. 2. A three-dimensional truss is formed by fixing a lower main reinforcing bar along a curved line and bending the lower end portions of the two corrugated reinforcing bars outward in a substantially horizontal direction.
Deck plate with truss described. 3. A lower end of the space truss is provided with a locking portion which can be elastically deformed in a lateral direction, a receiving portion which can be locked to the locking portion is formed on a predetermined substrate, and then the space truss is elastically deformed. ,
The distance between the locking portions is changed, and the space truss is placed on the substrate in correspondence with the receiving portion. Subsequently, the elastic deformation of the space truss is released, and the locking portion and the receiving portion are separated. A method of manufacturing a deck plate with a truss, the method comprising engaging to form a deck plate with a truss. 4. A deck plate with a truss according to claim 1, wherein a predetermined coating is applied in advance or a sheet or other finishing means is attached to at least the lower surface of the substrate before attaching the three-dimensional truss. Method.