JP2784483B2 - Floorboard - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a concrete floorboard of a building.

(Prior Art) Conventional floor boards made of concrete include those formed by cast-in-place and those made in advance in a factory and having a uniform thickness.

(Problem to be Solved by the Invention) In the case of a large building, there is no problem even if the floorboard is formed by casting in place. However, small buildings were inefficient and uneconomical.

Therefore, concrete floorboards mass-produced in factories have come to be used frequently. However, in the case of the conventional floor plate, there is a problem in fixing and fixing the floor plate. In many cases, workability was poor due to bolting work from below. When an insert nut or the like is arranged inside the panel body,
When fabricating floorboards, troublesome steps such as preventing concrete from entering the insert nut were required.

Furthermore, the strength of both ends of the panel body was not sufficient, and the thickness of this portion could not be reduced. Therefore, the distance between the ceiling and the floor could not be increased.

(Means for Solving the Problems) The floorboard of the present invention is formed in a rectangular shape by concrete, and cutouts having a horizontal surface and a vertical surface are formed along the lower surfaces of both opposing ends, respectively. , So that the four corners are cut out vertically, and each end is exposed to each cutout of the panel body,
The mounting plate is provided along the horizontal plane of each notch of the panel body, and has a bolt hole at each end exposed at each cutout, and along the vertical plane of both notches of the panel body And a reinforcing plate integrally combined with the mounting plate, and provided inside the panel main body such that both ends are respectively connected to the integrally combined reinforcing plate and the mounting plate. And a mesh plate.

Also, the lower surfaces of the opposite two opposite ends of the panel body are respectively notched, and the lower surface of the central portion of the panel body is formed so as to protrude downward.

(Operation) The four corners of the panel body are cut out in the vertical direction, and the cut-outs expose both ends of the mounting plate that have formed the bolt holes. Therefore, when fixing the floor panel to the floor beam, tighten bolts from above. It can be carried out.

In addition, the mounting plate is provided on the horizontal plane and the reinforcing plate is provided on the vertical plane of the cutouts respectively formed on the lower surfaces of the opposite end portions of the panel body, and these two plates are integrally combined and arranged inside the panel body. Since both ends of the mesh plate are connected to the reinforcing plate and the mounting plate, respectively, the strength of the floor plate is high. Moreover, the floor beam mounting portions at both ends of the panel main body can be made thin, and the height between the floor surface and the ceiling can be increased.

(Embodiment) The drawings show an embodiment of the floorboard of the present invention.

The floor panel A according to the present invention is formed of a rectangular panel made of concrete. A notch 10 having a horizontal surface 11 and a vertical surface 12 is formed on the lower surface of the opposite end portions 1a, 1a of the panel body 1, respectively. A mounting plate 21 is provided on the horizontal surface 11 of the two notches 10, Reinforcing plate 22
Is provided. The mounting plate 21 and the reinforcing plate 22 are integrally formed so as to have a substantially T-shaped cross section.

The opposite ends 1a, 1a of the panel body 1 are
Although the term refers to both ends in the longitudinal direction of the panel main body 1, it may be both ends in the width direction (the other opposite ends).

The lower surfaces of the opposing opposite ends of the panel body 1 where the notches 10 and 10 are not formed are also notched. This notch is indicated by reference numeral 13. Therefore, in the panel main body 1, the notches 10, 10, 13, 13 are formed on the lower surface of the peripheral edge, and the lower surface of the central portion is formed to project downward (the projecting portion is denoted by
14).

Both ends of the mesh plate 3 disposed inside the panel body 1 are connected to the reinforcing plate 22 and the mounting plate 21, respectively. The mesh plate 3 reinforces the panel body 1,
It is arranged inside the panel main body 1 in two upper and lower stages. Both ends of the lower mesh plate 31 are raised, and the rising portions 31
a is connected (welded) to the reinforcing plate 22. Both ends of the upper mesh plate 35 are connected (welded) on the mounting plate 21. It is preferable that the inner end 21a of the mounting plate 21 is extended more inward than the reinforcing plate 22.

The lower mesh plate (tensile side reinforcing bar) 31 is formed by combining a plurality of vertical reinforcing bars (10 mm diameter) 32 and a plurality of horizontal reinforcing bars (6 mm diameter) 33 in a mesh shape. The upper mesh plate (compression side rebar) 35 is composed of multiple vertical rebars (6 mm diameter) 36
And a plurality of horizontal reinforcing bars (6 mm diameter) 37 are formed in a mesh shape.

A so-called deformed reinforcing bar is used as each reinforcing bar. The diameter of the plurality of vertical reinforcing bars 32 used for the lower mesh plate 31 is made larger than the diameters of the other reinforcing bars to increase the compressive strength.

The upper mesh plate 35 and the lower mesh plate 31 are used for the binding 38
The mesh plate 3 is configured by combining and fixing the upper and lower two stages. The configuration of the mesh plate 3 is not limited to the configuration described here, but may be a single-stage configuration.

Both corners of the panel main body 1 are cut out in the vertical direction (cutouts are indicated by reference numerals 15...), And both ends of the mounting plate 21 are exposed to the cutouts 15. , 21a are formed with bolt holes 21b, 21b, respectively. That is, when the panel body 1 is viewed from above, the bolt holes 21b,
21b is made visible.

The upper part of the peripheral side surface of the panel main body 1 is formed as a tapered surface that gradually widens downward. By forming the tapered surface in this way, a gap is generated between the continuously provided floor boards A. This gap is filled with cement mortar and the floor boards A are joined to each other.

A plurality of notched recesses (also referred to as cotters) 4... Are formed at the upper side of the panel body 1.
.. May be filled with cement mortar, and the continuous floor plate A may be joined.

Next, means for fixing the floor panel A formed as described above to the floor beam 5 will be described.

The floor plate A is formed by mounting the mounting plates 21, 21 disposed in the notches 10, 10 formed at both ends facing each other on the floor beam 5, and forming the mounting plates 21 at both ends exposed portions 21 a, 21 a of each mounting plate 21. The bolt holes 21b, 21b are matched with bolt holes (not shown) formed in the floor beam 5. The bolt 6 is inserted through the bolt holes 21b, 21b into the bolt holes of the floor beam 5, and the nut 7 is fastened to the floor plate A.
Is fixed to the floor beam 5 (see FIG. 8).

After the plurality of floorboards A are laid and fixed on the floor beam 5 in this manner, if the mortar is filled in the cutout 15 of each floorboard A, the connection of the floorboards A is performed firmly. Become.

(Effect of the Invention) The means for fixing the floor beam to the floor plate is performed using bolt holes formed in the exposed mounting plate. Therefore,
The bolting operation can be performed from above, which is simple and has good workability.

High strength because the mesh plate is connected to the reinforcing plate and the mounting plate. Since the mounting plate is integrally combined with the reinforcing plate, strength is imparted to the horizontal and vertical surfaces of the cutouts formed at both ends of the panel main body, and the vertical thickness of both ends of the panel main body is reduced. About one quarter of the maximum thickness of the body). Therefore, the distance between the floor and the ceiling can be increased.

In addition, since the center of the lower surface of the panel body protrudes downward and is thick, the strength of the floor panel is large.

Since the lower surfaces of the opposite ends of the panel main body and the lower surfaces of the other opposite ends are both notched, the weight is reduced by that amount, which is convenient for transportation and the like.

[Brief description of the drawings]

1 is a plan view, FIG. 2 is a right side view, FIG. 3 is a front view, FIG. 4 is a bottom view, and FIG. FIG. 6 is a schematic longitudinal sectional view schematically showing a panel beam attached to a floor beam, FIG. 6 is a schematic longitudinal sectional view of a width direction side portion of the panel body, FIG. 7 is a perspective view of a corner portion of the panel body, and FIG. Partial front view with the end attached to the floor beam,
9 is a plan view of the upper mesh plate, FIG. 10 is a bottom view of the lower mesh plate, FIG. 11 is a front view of the mesh plate, and FIG.
The figure is a right side view of the mesh plate. A: Floor plate 1: Panel body 1a: Edge, 10: Notch 11: Horizontal plane, 12: Vertical plane 13: Notch, 15: Cutout 3: Mesh plate 31: Lower section Mesh plate 35 …… mesh plate 5 …… floor beam 21 …… mounting plate 21a …… exposed part, 21b …… bolt hole 22 …… reinforcing plate

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toru Kimoto 6-2-27 Nakanoshima, Kita-ku, Osaka-shi, Osaka Sekisui House Co., Ltd. (72) Inventor Eiji Makiya 5 Tomioka Nishi, Kanazawa-ku, Yokohama-shi, Kanagawa -43-22 (56) References JP-A-59-10649 (JP, A) JP-A-61-197111 (JP, U) JP-B-51-21251 (JP, B2) (58) Fields investigated (Int .Cl. ⁶ , DB name) E04C 2/00-2/54 E04B 5/00-5/48

Claims (2)

(57) [Claims] 1. A notch having a horizontal surface and a vertical surface is formed along a lower surface of opposing both ends, and four corners are cut out vertically in a rectangular shape made of concrete. The panel body is provided along the horizontal plane of each cutout of the panel body so that each end is exposed at each cutout of the panel body, and a bolt is attached to each end exposed at each cutout. A mounting plate provided with holes, a reinforcing plate provided along a vertical surface of both notches of the panel body, and integrally combined with the mounting plate, a reinforcing plate integrally combined with the mounting plate, A mesh plate provided inside the panel body so that both ends are connected to the mounting plate, respectively. 2. The floor panel according to claim 1, wherein the lower surfaces of the opposite opposite ends of the panel main body are also notched, and the lower surface of the central portion of the panel main body is formed so as to protrude downward.