JP4377206B2 - Floor structure - Google Patents

Description

The present invention relates to a floor structure formed by installing a plurality of panels on a girder or the like.

When forming a floor on a girder b constructed by arranging girder materials such as H-shaped steel materials at intervals, a method of hanging a precast concrete panel a manufactured in a rectangular shape between the girder b has been frequently practiced. (See FIG. 4).
The conventional panel a is provided with a plurality of anti-slip holes c, and the gibber d attached to the beam b is passed through the anti-slip hole c, and the anti-slip hole c is filled with a solidifying material such as concrete, and the beam b And panel a. According to this coupling structure, the solidified material and the gibber d filled in the stopper hole c bear the burden of restricting the movement of the panel a in the horizontal direction and restricting the panel a from jumping upward. become.

The conventional floor structure using a plurality of panels has the following problems.
<1> When a large live load is repeatedly applied to the floor due to the passage of a vehicle or the like, positive and negative repeated stresses are generated at the joint provided in the detent hole c. However, a hard solidified material such as concrete cannot follow the displacement or rotation of the floor (panel a), and there is a problem that the filled solidified material gradually deteriorates and is damaged.
<2> When the joint portion deteriorates, a water channel is formed, which causes corrosion of the girders and the like.
<3> Since a plurality of anti-slip holes c are provided in one panel a, it is difficult to align the position when the panel a is installed.
<4> When part of the panel a is damaged or when maintenance is performed under the floor, it is difficult to remove the panel a integrated with the solidifying material. Further, since the solidified material is damaged at the time of removal, it is necessary to fill the solidified material again when installing the panel a again.

In order to solve the above problems, the floor structure of the present invention is a floor structure formed by laying a plurality of panels, the plurality of panels, an elastic bearing supporting the panels, and limiting the lateral movement of the panel, and a projecting portion which is formed prior to installing the panels, Tona is, the panel was placed without sticking to the projections, the floor top surface, the top surface of the panel, It is characterized by being formed by the upper surface of the protrusion .

The floor structure of the present invention can obtain at least one of the following effects by means for solving the above problems.
<1> Since the panel is supported by the elastic bearing, it is possible to absorb displacement and rotation generated at the end of the panel. For this reason, unlike the conventional rigid coupling part, it is damaged by repeated loading and does not become a water channel.
<2> The lateral force acting on the panel is opposed by the protrusion. For this reason, the shift | offset | difference of the panel to a horizontal direction can be prevented. In other words, while the conventional coupling portion has been adapted to both vertical force and horizontal force, it is possible to improve durability and workability by allocating a resistance mechanism to each of the elastic bearing and the protruding portion. it can.
<3> Since the panel is not firmly fixed to the protrusion, it is easy to remove or replace.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<1> Panel The floor structure of the present invention is formed by arranging a plurality of panels 1 side by side. The planar shape of the panel 1 may be any shape, and a panel having a polygonal shape such as a quadrangle (1c), a hexagon, or an octagon (1a), or a curved shape such as a circle or an ellipse can be used. Moreover, the panel of the shape (1a) which cut off the four corners of a quadrangle, the shape (1b) which cut off the vicinity of the center of the four sides of a quadrangle, etc. can be used.
The panel 1 can be manufactured in a predetermined shape using concrete, steel, polymer resin, or the like. The panel 1 may be a solid structure, a hollow structure, or an outer shell structure.

<2> Elastic Support The elastic support 2 is a member that supports the panel 1. The elastic support 2 is installed to absorb the displacement and rotation generated at the end of the panel 1. For example, a plate-like or sheet-like elastic support 2 is laid on the upper surface of a girder 4 made of H-shaped steel, and the end of the panel 1 is placed thereon. Alternatively, the elastic support 2 can be attached to the end of the panel 1 in advance and installed on the upper surface of the girder 4.
For the elastic support 2, for example, a rubber plate or a rubber sheet can be used.

<3> Protruding portion The protruding portion 3 is provided in order to limit the lateral movement of the installed panel 1. If the panel 1 is merely installed on the elastic bearing 2, there is a possibility that the panel 1 moves and shifts in the lateral direction. In order to prevent such a shift of the panel 1, for example, a protrusion 3 fixed on the beam 4 is provided to restrict or restrict the movement of the panel 1.
The protrusion 3 is formed by, for example, placing concrete or the like so as to wrap a gibber 31 or a perforated steel plate fixed to the upper surface of the beam 4. The strength of the protrusion 3 can be calculated based on the horizontal force acting on the panel 1. The shape of the protrusion 3 is formed in accordance with the shape of the end face of the adjacent panel 1.
The protrusion 3 may be formed before the panel 1 is installed, or may be formed after the panel 1 is installed. When the projection 3 is formed before the panel 1 is installed, the panel 1 can be installed simply by fitting the panel 1 between the projections 3. Moreover, when forming the protrusion part 3 after installing the panel 1, since the end surface of the panel 1 becomes a formwork, the protrusion part 3 can be constructed | assembled efficiently.

<4> Buffer material The buffer material 5 is a filling material disposed between the panels 1 and 1. Since the floor structure of the present invention is a structure in which the displacement and rotation of the end of the panel 1 are absorbed by the elastic support 2, a gap is provided between the panels 1 and 1. The buffer material 5 is a member that fills this gap between the panels 1 and 1, and can prevent water from entering the girder 4 from the gap between the panels 1 and 1. Moreover, it can prevent that the panels 1 and 1 collide and stress concentration arises in the edge part of the panel 1, and it is damaged.
For the buffer material 5, materials such as rubber, urethane, and urethane foam can be used.

In Example 1, a floor structure in which protrusions 3a are provided at corners of a panel 1a will be described with reference to FIG.
First, as the girder 4, for example, H-shaped steel materials are arranged in a lattice pattern. The girder 4 can also be constructed of reinforced concrete or the like. Further, when the panel 1a is laid on the floor surface to form a new floor, the beam 4 need not be provided.
On the upper surface of the beam 4, a connecting material such as a dowel 31 or a perforated steel plate is attached at a position where the protrusion 3 a is provided. Further, an elastic support 2 is interposed at a position where the panel 1a is installed.
The projecting portion 3a is formed by placing concrete or the like so that a connecting material such as a dowel 31 is embedded. The protrusion 3a may be manufactured before or after the panel 1a is installed. In the first embodiment, the projections 3a having a square shape or a rhombus in plan view are provided at the corners of the panel 1a.
As the panel 1a, an octagonal panel is used in which square corners are dropped in accordance with the shape of the protrusion 3a. The upper surface of the floor structure of the present invention is formed by the upper surface of the panel 1a and the upper surface of the protrusion 3a. Further, a cushioning material 5 (not shown in FIG. 1) is disposed between the panels 1a and 1a as necessary.

In Example 2, a floor structure in which protrusions 3b are provided in the middle of each side of the panel 1b will be described with reference to FIG. Note that the same contents as those in the first embodiment are omitted.
In the second embodiment, the protrusions 3b having a square shape or a rhombus shape are formed so as to be disposed between the corners of the panel 1b. And the panel 1b which provided the triangular prism-shaped notch near the center of each edge | side according to the shape of the projection part 3b is engage | inserted between the projection parts 3b. And the buffer material 5 is packed in the clearance gap between the panels 1b and 1b.

In the third embodiment, a floor structure in which the protrusion 3c is provided so as to surround the outer periphery of the panel 1c will be described with reference to FIG. The same contents as those in the first and second embodiments are omitted.
In Example 3, the protrusion 3c is provided so as to surround the outer periphery of the panel 1c. The protrusion 3c may be provided continuously as shown in FIG. 3, or may be provided intermittently. When the protrusions 3c are provided intermittently, the cushioning material 5 can be filled between the protrusions 3c to continuously surround the outer periphery of the panel 1c.

Explanatory drawing of Example 1 of the structure of the floor of this invention. Explanatory drawing of Example 2 of the structure of the floor of this invention. Explanatory drawing of Example 3 of the structure of the floor of this invention. Explanatory drawing of the Example of the structure of the conventional floor.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Panel 2 ... Elastic support 3 ... Projection part 4 ... Girder 5 ... Buffer material

Claims (1)

A floor structure formed by laying a plurality of panels,
Multiple panels,
An elastic bearing for supporting the panel;
Limiting the lateral movement of the panel, and a projecting portion which is formed prior to installing the panels, Ri Tona,
Install the panel without sticking to the protruding part,
The upper surface of the floor is formed by the upper surface of the panel and the upper surface of the protrusion .
The structure of the floor.

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