JP2750476B2 - Concrete floor panel and its mounting method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mounting a concrete floor panel on the upper surface of a beam of a building, and more particularly to an improvement in a concrete floor panel suitable for use in the method.

[0002]

2. Description of the Related Art A conventional concrete floor panel used by being attached to an upper surface of a beam of a building has a concave joint portion formed in the entire longitudinal direction of a small side surface on a long side thereof. Also,
In order to attach this concrete floor panel to the upper surface of the beam, as shown in FIG. 19, the joint reinforcing bar 4 is placed between the opposed concave joints 1b of two adjacent concrete floor panels 1.
2 and the joint reinforcing bar 42 also passes through a square plate-shaped fixing plate 41 applied to the short side of the concrete floor panel 1, and the fixing plate 41 is fixed to the beam 2 of the building.
The concrete floor panel 1 is fixed to the beam 2 by filling the mortar 43 so as to fill the joint reinforcement 42 between the concave joints 1b, that is, a so-called wet method has been adopted.

[0003]

In the above-mentioned wet method, a large preparation such as a mortar kneading device or a pouring device is required to be carried to the site, and the mortar filling operation is troublesome and requires considerable attention. there were. In addition, since the installation of the concrete floor panel is not completed until the filled mortar is dried and hardened, there is a problem that the installation period is long.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to dry-mount a concrete floor panel on a beam without using a mortar, thereby simplifying preparation for mounting a concrete floor panel and mounting work. It is an object of the present invention to provide a concrete floor panel capable of facilitating installation and shortening an installation period and an installation method thereof.

[0005]

According to a first aspect of the present invention, there is provided a method of mounting a concrete floor panel, comprising the steps of: providing a concrete floor having concave joints at least at both ends in a longitudinal direction of a long side edge. Each panel is a unit,
The one unit of concrete floor panels are arranged adjacent to each other on a beam of a building to form a plane cross joint, and a rod-shaped fixing member is directly or directly provided between the concave joints facing each other at the joint. A method of tightly fitting via the cushioning material and fixing the four adjacent corners of the one unit concrete floor panel to the beam at the same time by fixing the bar-shaped fixing member to the beam, Arranging any one unit of the concrete floor panel on the beam and adjoining the remaining one or two concrete floor panels of the unit to the concrete floor panel A first step of disposing the rod-shaped solid support on the concave joint where the two or three concrete floor panels disposed in the first step are adjacent to each other or confront each other at a portion where the concrete floor panels are adjacent to each other; A second step of tightly fitting the members by crouching or inserting them into the crotch; and disposing the remaining two or one concrete floor panels of the unit on the beams And a third step of tightly fitting the concave joint portion of the concrete floor panel with the rod-shaped fixing member.

A method for mounting a concrete floor panel according to a second aspect is a method for mounting a concrete floor panel according to the first aspect, particularly adapted to a wooden beam.

The concrete floor panel according to a third aspect of the present invention is particularly suitable for the mounting method, in which concave joints are provided at both ends in the longitudinal direction of the long side edge.
A convex joint was provided at the center in the longitudinal direction of the long side edge surface.

[0008]

According to the method for mounting a concrete floor panel according to the first aspect, in the first step, only two or three concrete floor panels out of four units are arranged on the beam. In the second step, a continuous or opposing concave joint part of the concrete floor panels has an open part to the outside, and the rod-shaped fixing member is addressed or inserted into the open part so as to extend to the crotch. Thus, the rod-shaped fixing member can be tightly fitted to the concave joint. In the subsequent third step, if the concave joints of the remaining two or one concrete floor panels are closely fitted to the rod-shaped fixing members, the four corners of the four concrete floor panels are simultaneously connected to the beam. Can be mounted on top. Further, since the concave joints of the four concrete floor panels and the rod-shaped fixing members are fitted tightly, they are relatively fixed, and by fixing the rod-shaped fixing members to the beams, the concrete is fixed. The floor panel is restricted from moving in the width direction and the vertical direction, and is fixed to the beam. By using the rod-shaped fixing member and performing the above-described steps, it becomes possible to dry-mount the concrete floor panel on the upper surface of the beam without using a conventional mortar.

According to the concrete floor panel mounting method of the second aspect, in addition to the above-mentioned functions, the bar-shaped fixing member can be fixed to the wooden beam with a simple mounting member such as a nail.

According to the concrete floor panel of the third aspect, the rod-shaped fixing member can be fitted tightly into the concave joints provided at both ends in the longitudinal direction of the long side edge. The concrete floor panel can be used in the concrete floor panel mounting method according to the first aspect. Furthermore, by fitting the convex joint provided in the longitudinal center part of the long side narrow edge surface to the concave joint of the adjacent concrete floor panel, the strength of the joint is increased, and the adjacent concrete is increased. Since the floor panels do not shift in the vertical direction, their surfaces can be kept flush.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The concrete floor panel mounting method according to the first to third embodiments of the present invention will be described below in order. The state after the concrete floor panel is mounted on the beam of the building, that is, the mounting structure. Since these are common to the embodiments, the mounting structure will first be briefly described with reference to FIG.

As shown in FIG. 1, the concrete floor panel used in the present embodiment is a normal one in which concave joints 1b are provided on the left and right long side edges, respectively, over the entire longitudinal direction. . The beam 2 was a wooden beam. In this mounting structure, four adjacent concrete floor panels 1 are mounted on the beam 2 as one unit. This one unit of concrete floor panel 1 is arranged on the beam 2 so as to be adjacent to each other to form a plane-cross joint 3, and between the concave joints 1 b facing each other at the joint 3. The cylindrical rod-shaped fixing member 4 is tightly fitted. The rod-shaped fixing member 4 is fixed to the beam 2 by a mounting member 5 such as a nail, so that four adjacent corner portions 1a of the unit of concrete floor panel 1 are simultaneously fixed to the beam 2. I have.

The method of mounting the concrete floor panel of the first embodiment will be described in the order of steps with reference to FIGS. (1) First, one concrete floor panel 1 having a concave joint portion 1b is disposed so that the short side end thereof rests on a beam 2 of a building, and as shown in FIG. The concrete floor panel 1 having another similar concave joint portion 1b is placed on the beam 2 so as to be adjacent to the panel 1 so that the concave joint portion 1b is continuous with the concave joint portion 1b. Arrange.

(2) Next, as shown in FIG. 3, a part of the two concrete floor panels 1 adjacent to each other is opened to the outside at the contiguous concave joints 1b.
The rod-shaped fixing member 4 is tightly fitted to the open portion by placing the rod-shaped fixing member 4 in a crotch-like manner, and the rod-shaped fixing member 4 is fixed to the beam 2 by a mounting member 5. The outer diameter of the rod-shaped fixing member 4 is directly and tightly fitted into the groove of the concave joint portion 1b.

(3) Next, as shown in FIGS. 4 and 1,
The remaining two concrete floor panels 1 are disposed such that their short side ends rest on the beams 2, and the concave joint portions 1 b of the concrete floor panels 1 are attached to the rod-shaped fixing members 4.
To fit tightly.

According to the concrete floor panel mounting method described above, each of the four concrete floor panels 1 is provided with the concave joint 1b at the corner 1a.
To fit. Further, since these concave joint portions 1b and the rod-shaped fixing members 4 are fitted tightly, they are relatively fixed to each other, and by fixing the rod-shaped fixing members 4 to the beams 2, The movement of the concrete floor panel 1 in the width direction and the vertical direction is restricted, and the concrete floor panel 1 is attached to the beam 2. At this time, the corner portions 1a of the four concrete floor panels 1 are simultaneously attached to the upper surfaces of the beams 2. By using the rod-shaped fixing member 4 and performing the above-described steps, the concrete floor panel 1 can be dry-mounted on the beam 2 without using mortar as in the related art. Further, since it is not necessary to take a period required for the mortar to dry, the installation period can be shortened.

Next, a description will be given of a mounting structure of a portion where the concrete floor panels 1 are mounted as two or one unit as one unit in this embodiment. First, a structure for fixing the two corner portions 1a of the concrete floor panel 1 to the beam 2 will be described with reference to FIG. As shown in FIG. 5, two corner insertion fittings 6 are provided at the corners where the concave joints 1 b of the two concrete floor panels 1 abut, and the two corner insertion fittings 6 are attached to both concrete floor panels 1.
Is fixed to the beam 2. The two-corner insertion mounting bracket 6 is formed into an L-shaped cross section including a vertical wall portion 6a and a horizontal wall portion 6b by, for example, press working from an iron plate, and an insertion portion 6c extending horizontally is provided at the center of the vertical wall portion 6a. Projected by welding or the like. The outer diameter of the insertion portion 6c is the concave joint portion 1b facing the opposite portion.
And is fitted tightly.
Further, two mounting holes 6d are provided in the lateral wall portion 6b, and the two-corner insertion mounting bracket 6 is fixed to the upper surface of the beam 2 by a nail penetrating the mounting hole 6d.

The corners where the concave joints 1b of the two concrete floor panels 1 are aligned on the same straight line are shown in FIG.
As shown in FIG. 5, two corner fitting fittings 7 are provided, and the two corner fitting fittings 7 fix both concrete floor panels 1 to the beams 2. The two-corner fitting metal fitting 7 includes an iron plate having an L-shaped cross section including a vertical wall portion 7a and a horizontal wall portion 7b, and a fitting portion 7c provided horizontally along the surface of the vertical wall portion 7a. Is formed. The fitting portion 7c is obtained by cutting off the middle portion of the cylindrical member by the width of the vertical wall portion 7a, and is fixed to the back surface of the vertical wall portion 7a by welding or the like. The fitting portion 7c of the two-corner fitting metal fitting 7 is addressed so as to straddle the continuous concave joint portion 1b of the two concrete floor panels 1, and is tightly fitted to the concave joint portion 1b. doing. Other structures are the same as those of the two-corner insertion fitting 6.

Next, a structure for fixing one corner 1a of the concrete floor panel 1 to the beam 2 will be described.
As shown in FIG. 7, a corner fitting fitting 8 is provided at the extreme end corner of the concrete floor panel 1. The corner fitting fitting 8 is a concrete floor panel 1.
, A short side vertical wall portion 8a in contact with the short side front edge surface, a long side vertical wall portion 8b in contact with the long side front edge surface, and both vertical wall portions 8a,
And a horizontal wall portion 8c extending horizontally from the lower end of the upper portion 8b. A fitting portion 8d is provided on the long side vertical wall portion 8b on the side of contact with the concrete floor panel 1.
The fitting portion 8d is formed by cutting a cylindrical member by the width of the long side vertical wall portion 8b, and is horizontally welded to the long side vertical wall portion 8b. The fitting portion 8 d is tightly fitted to the concave joint portion 1 b of the concrete floor panel 1. Further, two mounting holes 8e are provided in the lateral wall portion 8c, and the one-corner fitting metal fittings 8 are fixed to the upper surface of the beam 2 by nails penetrating the mounting holes 8e.

When a plurality of concrete floor panels 1 are arranged and fixed to the beam 2 by the rod-shaped fixing member 4, the two-corner insertion mounting bracket 6, the two-corner mounting bracket 7, and the one-corner mounting bracket 8, FIG. As shown in the figure, the floor 9 in which the vertical and horizontal movement of each concrete floor panel 1 is strongly restricted.
Is formed.

Next, a method of mounting a concrete floor panel according to the second embodiment will be described in the order of steps with reference to FIGS. (1) First, as shown in FIG. 9, one concrete floor panel 21 having a concave joint portion 21b is arranged so that the short side end thereof is placed on the beam 2 of the building. Another similar concrete floor panel 21 is disposed on the beam 2 so as to be adjacent to the panel 21 so that the concave joint portions 21b of both panels 21 face each other. The concrete floor panel 21 used in this embodiment is shown in FIG.
As shown in FIG. 2 to FIG. 15, a concave joint portion 21 b is provided at one end in the longitudinal direction on one long side small edge surface, and a convex joint portion 21 is formed at a longitudinal central portion of the long side small edge surface.
c is provided. In addition, the other long side edge surface is provided with a concave joint portion 21b extending over the entire longitudinal direction. This concrete floor panel 1 has a convex joint 21c.
They are arranged in the same direction so that they do not hit each other.

(2) Next, as shown in FIG. 10, the rod-shaped fixing member 4 is inserted between the concave joint portions 1b where the two concrete floor panels 21 are adjacent to each other at the adjacent portions. And the rod-shaped fixing member 4 is fixed to the beam 2 by a mounting member 5 such as a nail.

(3) Next, as shown in FIG. 11, the remaining two concrete floor panels 21 having the same structure are arranged such that their short side ends are placed on the beams 2. hand,
The concave joint portion 21b of the concrete floor panel 21 is fitted tightly to the rod-shaped fixing member 4.

According to the concrete floor panel mounting method described above, when the concrete floor panel 21 is provided, the concave joints 21b and the convex joints 21c are fitted, so that the concrete floor panels 21 are aligned with each other. And the joint strength of the joints can be increased even after the concrete floor panel 21 is attached to the beam 2, and the joining line of each panel can be formed in an orderly manner. Other functions and effects are the same as those of the first embodiment.

Next, a method of mounting the concrete floor panel of the third embodiment will be described with reference to FIGS. (1) First, as shown in FIG.
b, and two concrete floor panels 21 are disposed so that the concave joint portions 21b are continuous with each other and the short side end of the lower surface thereof is placed on the beam 2. Concave joint 21b of concrete floor panel 21
The other concrete floor panel 1 is disposed so that the concave joint portions 1b face each other.

(2) Next, as shown in FIG. 11, by inserting a part of the rod-shaped fixing member 4 between the opposed concave joints 21b, the rod-shaped fixing member 4 and the concave joints 21b are inserted. And are tightly fitted. The rod-shaped fixing member 4 protruding from between the opposed concave joints 21b.
The other part of the concrete floor panel 21 is tightly fitted to the concave joint part 21b of the concrete floor panel 21 by contacting the other part. Subsequently, the rod-shaped fixing member 4 is fixed to the beam 2 by the mounting member 5.

(3) Next, the concave joint portion 21b of the remaining one concrete floor panel 21 of the unit is tightly fitted to the rod-shaped fixing member 4, so that a plane cross joint is formed. Then, the four concrete floor panels 21 are fixed to the beams 2. The operation and effect of the method for mounting the concrete floor panel described above are the same as those of the second embodiment.

The present invention is not limited to the configuration of the above-described embodiment, but may be embodied by arbitrarily changing it without departing from the spirit of the present invention as described below. (1) As shown in FIG. 17, a clog member 10 may be provided between the rod-shaped fixing member 4 and the beam 2. The clogging member 10 facilitates the driving operation using the attachment member 5 such as a nail. (2) The beam is not limited to a wooden beam, but may be, for example, a steel beam. In this case, the fixing member is welded to the steel beam via an anchor or the like. (3) As shown in FIG. 18, the concave joint portion 31 b may be formed on the surface side of the concrete floor panel 31. (4) The bar-shaped fixing member may be fitted between the concave joints facing each other via a buffer material such as rubber or plastic.

[0029]

The concrete floor panel and the method of mounting the same according to the present invention are constructed as described above, so that the concrete floor panel can be mounted on the beam in a dry manner without using mortar. An excellent effect is obtained that simplification of preparation for mounting the floor panel, simplification of the mounting work, and shortening of the mounting period can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a mounting structure of a concrete floor panel according to a first embodiment.

FIG. 2 is a perspective view showing a first step of the mounting method.

FIG. 3 is a perspective view showing a second step of the mounting method.

FIG. 4 is a perspective view showing a second step or a third step of the mounting method.

FIG. 5 is a perspective view showing a two-corner insertion fitting.

FIG. 6 is a perspective view showing a two-corner fitting fitting.

FIG. 7 is a perspective view showing a corner fitting fitting.

FIG. 8 is a plan view showing an attached state of the concrete floor panel.

FIG. 9 is a perspective view showing a first step of the mounting method of the second embodiment.

FIG. 10 is a perspective view showing a second step of the mounting method.

FIG. 11 is a perspective view showing a second step or a third step of the mounting method.

FIG. 12 is a perspective view of a concrete floor panel used in the same mounting method.

FIG. 13 is a plan view of the concrete floor panel.

FIG. 14 is a sectional view taken along line BB and line CC in FIG.

FIG. 15 is a sectional view taken along line AA in FIG.

FIG. 16 is a perspective view showing an intermediate step of the mounting method according to the third embodiment.

FIG. 17 is a perspective view showing another example using a clog member.

FIG. 18 is a perspective view showing another example having a different joint shape.

FIG. 19 is a perspective view showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Concrete floor panel 1a Corner part 1b Concave joint part 2 Beam 3 Joint 4 Bar-shaped fixing member 21 Concrete floor panel 21b Concave joint part

Claims (3)

(57) [Claims] A concrete floor panel (1, 21) having concave joints (1b, 21b) at least at both ends in the longitudinal direction of a long side edge is made into one unit of concrete floor panel (1 unit). 1, 2) are arranged adjacent to each other on the beam (2) of the building to form a plane cross joint (3), and the concave joints (1b) facing each other at the joint (3). , 21b), the rod-shaped fixing member (4) is tightly fitted directly or via a cushioning material, and the rod-shaped fixing member (4) is fixed to the beam (2), whereby the one unit concrete floor panel is formed. A method of simultaneously fixing four adjacent corner portions (1a, 21a) of (1, 21) to the beam, wherein the one unit of any one concrete floor panel (1, 21) is attached to the beam. (2) and at the same time A first step of disposing the remaining one or two concrete floor panels (1, 21) of said one unit on said beams (2) adjacent to cleat floor panels (1, 21) And the two or three concrete floor panels (1, 21) disposed in the first step are continuous or opposed to each other at adjacent portions, and the concave joint portion (1b,
21b) a second step of tightly fitting by inserting or inserting the rod-shaped fixing member (4) in a crotch manner, and the remaining two or one concrete floor panel of said one unit (1, 21) is arranged on the beam (2), and the concave joints (1b, 21b) of the concrete floor panel (1, 21) are fitted tightly to the rod-shaped fixing member (4). And a third step of combining the concrete floor panels. 2. A method according to claim 1, wherein said beams are wooden beams. 3. A concrete floor provided with concave joints (21b) at both ends in the longitudinal direction of the long-side small-face, and a convex joint (21c) provided at the longitudinal center of the long-side small-face. panel.