JP2000345648A - Structure for floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the torsional deformation of floor beams by fixing the tip of a cantilever beam fitted to the side face of each floor beam to a floor structure located above it. SOLUTION: Floor beams 1 are suspended between columns 6, a plurality of floor panels 4 constituting a floor structure 3 are arranged in parallel in a lateral line in the space surrounded by the beams 1, and the panels 4 are connected to the beams 1. A cantilever beam 2 is protruded perpendicularly to the beam 1 perpendicular to the aligning direction of the panels 4 on the side face of the beam 1 nearly at the longitudinal center section, the panel 4 adjacent to the beam 1 is mounted on the beam 2, and the tip of the beam 2 is fixed to the panel frame of the panel 4 by bolts or the like, or a plurality of beams 2 are fitted to the side face of the beam 1 nearly at the center section, and a plurality of beams 2 may be symmetrically arranged around the center of the beam 1. The torsional deformation of the floor beams 1 can be prevented without increasing the cross section of the floor beams 1, the floor beams 1 can be made lightweight, the execution property can be improved, and the cost can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structure resistant to torsional deformation of a floor beam.

[0002]

2. Description of the Related Art Conventionally, in order to exert a strong strength against torsional deformation in a floor beam, it is necessary to increase the torsional deformation by increasing the cross section of the floor beam and increasing the strength of the floor beam itself. It is the current situation.

However, in such a structure in which the cross section of the floor beam is enlarged to increase the strength of the floor beam itself so as to exert a strong strength against torsional deformation, the cross section of the floor beam is large and the weight is large. In addition, there is a problem that the construction becomes difficult and the cost increases.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and a floor which can prevent torsional deformation of a floor beam with a simple configuration without increasing the cross section of the floor beam. It is an object of the present invention to provide a structure.

[0005]

In order to solve the above-mentioned problems, a floor structure according to the present invention comprises a floor structure 3 on which a tip of a cantilever 2 attached to a side surface of a floor beam 1 is positioned. Characterized in that it is fixed to With such a configuration, the torsional deformation force applied to the floor beam 1 is held by the cantilever 2 attached to the side surface of the floor beam 1 and the floor structure 3 to which the tip of the cantilever 2 is fixed. The torsional deformation of the floor beam 1 can be prevented.

Further, it is preferable that a plurality of cantilever beams 2 be mounted on a side surface of a substantially central portion of the floor beam 1 and that the plurality of cantilever beams 2 be arranged symmetrically about the center of the floor beam 1. With such a configuration, the plurality of cantilever beams 2 and the floor structure 3 to which the front ends of the plurality of cantilever beams 2 are fixed are substantially provided at a substantially central portion where the floor beam 1 is most likely to be twisted and deformed. Accordingly, the torsional deformation of the floor beam 1 can be prevented by retaining the torsional deformation force applied to the floor beam 1.

In the space surrounded by the floor beams 1, a floor structure 3 is provided.
Are arranged side by side in a row, each floor panel 4 is connected to the floor beam 1, and the longitudinal direction of the floor beam 1 in the direction orthogonal to the direction in which the plurality of floor panels 4 are arranged is substantially the same. The front end of the cantilever 2 attached to the side surface of the central portion is fixed to the floor panel 4 which is the floor structure 3 located thereon, and at least a portion of the plurality of floor panels 4 where at least the outer peripheral frames 5 are adjacent to each other. It is preferable to fix the outer peripheral frame 5 to the floor beam 1 in the direction in which the floor panels 4 are arranged. With such a configuration, the torsional deformation of the floor beam 1 in a direction orthogonal to the direction in which the plurality of floor panels 4 are arranged is such that the cantilever 2 projecting from the floor beam 1 and the tip of the cantilever 2 The torsional deformation of the floor beam 1 in a direction parallel to the direction in which the plurality of floor panels 4 are arranged is prevented by the outer peripheral frame 5 adjacent to the plurality of floor panels 4. By being fixed to the beam 1, the torsional deformation of the floor beam 1 can be prevented.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings.

FIG. 1 shows an example of a floor structure. A floor beam 1 is provided between pillars 6 such as through columns, and a floor structure 3 is formed in a space surrounded by the floor beams 1. Multiple floor panels 4
Are arranged side by side in a row to connect each floor panel 4 to the floor beam 1.

[0010] The floor panel 4 is as shown in FIG. 7, and has a rectangular U-shaped cross-section in a rectangular outer peripheral frame 5 made of a steel material having a U-shaped cross section in parallel with the longitudinal direction of the outer frame 5. A panel frame 7 is formed by laying a plurality of steel joists 6 made of steel, and a floor panel 8 is fixed to the panel frame 7 to form a floor panel 4 having a rectangular shape in plan view.

As shown in FIGS. 3 and 4, the floor panel 4 has four corners connected to the floor beam 1 by connecting fittings 9 and 10.
The connection fitting 9 is fixed to the floor beam 1, the corner portion of the outer peripheral frame 5 of the floor panel 4 is placed on the mounting piece 9 a of the connection fitting 9, and is fixed to the connection fitting 9 with bolts. Each corner portion of the outer peripheral frame 5 of the adjacent floor panel 4 is placed on the mounting piece 10a of the connection fitting 10, and is fixed to the connection fitting 10 by a bolt. Also, the outer peripheral frame 5 of the adjacent floor panel 4
These are connected by bolts via spacers 11 as shown in FIG.

In the present invention, as shown in FIG. 5, a mounting bracket 12 is provided on a side surface of a substantially central portion in the longitudinal direction of the floor beam 1 in a direction orthogonal to the direction in which the plurality of floor panels 4 are arranged. A cantilever 2 protrudes at right angles to the floor beam 1, and a floor panel 4 adjacent to the floor beam 1 is placed on the cantilever 2 and the tip of the cantilever 2 is The floor panel 4 is fixed to the panel frame 7 (the joist 6 in the embodiment) by bolts.

By fixing the tip of the cantilever 2 attached to the side surface of the floor beam 1 to the floor structure 3 located thereon, the torsional deformation force acting on the floor beam 1 can be reduced. The cantilever 2 attached to the side surface of the floor 1 and a floor panel 4 constituting a floor structure 3 in which the tip of the cantilever 2 is fixed can prevent torsion deformation of the floor beam 1. Yes, as a result, there is no need to increase the cross section of the floor beam 1 to prevent torsional deformation of the floor beam 1 itself, the cross section of the floor beam 1 can be reduced, the weight of the floor beam 1 is reduced, and construction is easy. In addition, the cost can be reduced.

In the floor beam 1 parallel to the direction in which the plurality of floor panels 4 are arranged, as shown in FIG. 4, the outer frame 5 is placed near at least the portion where the outer frames 5 are adjacent to each other. Since the outer frame 5 is fixed to the floor beam 1 in a direction perpendicular to the direction in which the floor panels 4 are arranged, the cantilever beam 2 is fixed to the floor beam 1 in a direction parallel to the direction in which the panels 4 are arranged.
It is possible to prevent the torsional deformation of the floor beam 1 in a direction parallel to the direction in which the floor panels 4 are arranged in the same manner as in the above. Of course, a cantilever 2 is also provided on the side of the floor beam 1 parallel to the direction in which the plurality of floor panels 4 are arranged, and the tip of the cantilever 2 is fixed to the floor panel 4 as the floor structure 3. It may be.

When the cantilever 2 is projected from the side surface of the floor beam 1 in a direction perpendicular to the longitudinal direction of the floor beam 1, a substantially central portion in the longitudinal direction of the floor beam 1 is most likely to be twisted and deformed. Therefore, it is most effective to project the cantilever 2 from the side surface of the floor beam 1 substantially at the center in the longitudinal direction. In this case, the embodiment shown in FIGS. 1 and 2 shows an embodiment in which one cantilever 2 is protruded from a substantially central portion of the floor beam 1 in the longitudinal direction.
In protruding the plurality of cantilevers 2, as shown in FIG. 8, a plurality of cantilevers 2 are attached to side surfaces of a substantially central portion of the floor beam 1, and the plurality of cantilevers 2 are attached to the center of the floor beam 1. It may be arranged symmetrically with respect to the center. With such a configuration, the plurality of cantilever beams 2 and the floor structure 3 to which the front ends of the plurality of cantilever beams 2 are fixed are substantially provided at a substantially central portion where the floor beam 1 is most likely to be twisted and deformed. Accordingly, the torsional deformation of the floor beam 1 can be prevented while maintaining the torsional deformation force applied to the floor beam 1.

In the above embodiment, the floor structure 3
As an example, the floor panel 4 has been described, but it is a matter of course that the floor structure 3 may be constructed by assembling a joist and a joist.

[0017]

As described above, according to the first aspect of the present invention, the tip of the cantilever attached to the side surface of the floor beam is fixed to the floor structure located thereon. Therefore, it is possible to prevent the torsional deformation of the floor beam by holding the torsional deformation force applied to the floor beam with the cantilever attached to the side surface of the floor beam and the floor structure with the tip of the cantilever fixed. As a result, it is possible to prevent torsional deformation of the floor beam with a simple configuration without increasing the cross section of the floor beam, to reduce the weight of the floor beam, and to improve workability,
Costs can also be reduced.

According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, a plurality of cantilever beams are attached to a side surface of a substantially central portion of the floor beam, and the plurality of pieces are provided. Since the beams are symmetrically arranged around the center of the floor beam,
At the approximate center, where the floor beam is most likely to be twisted, the floor structure holds the torsional deformation force applied to the floor beam by a plurality of cantilevers and a floor structure to which the tip portions of the cantilevers are fixed. The torsional deformation of the beam can be prevented, and a holding force against a particularly large torsional deformation force can be exhibited.

According to the third aspect of the present invention, in addition to the effects of the first or second aspect, a plurality of floors constituting a floor structure in a space surrounded by floor beams. Panels are arranged side by side in a row, each floor panel is connected to a floor beam, and a cantilever attached to the side of the substantially central portion of the floor beam in the direction perpendicular to the direction in which the plurality of floor panels are arranged in the longitudinal direction. The front part is fixed to a floor panel which is a floor structure located thereon, and the outer peripheral frame is fixed to a floor beam in the direction in which the floor panels are arranged in the vicinity of at least a portion where the outer peripheral frames of the plurality of floor panels are adjacent to each other. Therefore, the torsional deformation of the floor beam in the direction perpendicular to the direction in which the plurality of floor panels are arranged is prevented by the cantilever projecting from the floor beam and the floor structure to which the tip of the cantilever is fixed. In addition, the torsional deformation of the floor beams in the direction parallel to the direction in which Since the outer peripheral frame of the floor is fixed to the floor beam, the torsional deformation of the floor beam can be prevented, and the floor beam and the parallel direction of the plurality of floor panels are orthogonal to the parallel direction of the plurality of floor panels. The torsional deformation of the parallel floor beams can be prevented with a reasonable configuration.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment of the present invention.

FIG. 2 is a schematic plan view of the same.

FIG. 3A is an enlarged plan view of a portion A in FIG. 2;
FIG. 3B is an enlarged vertical sectional view of a portion A in FIG. 2.

FIG. 4A is an enlarged plan view of a portion B in FIG. 2;
FIG. 3B is an enlarged vertical sectional view of a portion B in FIG. 2.

FIG. 5A is an enlarged plan view of a portion C in FIG. 2;
FIG. 3B is an enlarged vertical sectional view of a portion C in FIG. 2.

FIG. 6A is an enlarged plan view of a portion D in FIG. 2,
FIG. 3B is an enlarged vertical sectional view of a portion D in FIG. 2.

FIG. 7 is a perspective view of a floor panel used in the above.

FIG. 8 is a perspective view of another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor beam 2 Cantilever 3 Floor structure 4 Floor panel

Continued on the front page (72) Inventor Kazuya Kondo 1-1-4 Shinsenri Nishimachi, Toyonaka City, Osaka Prefecture Inside the National Housing Industry Co., Ltd. (72) Inventor Shigenori Iwasawa 1-1-1, Shinsenri Nishimachi, Toyonaka City, Osaka Prefecture No. 4 Inside the National Housing Industry Co., Ltd.

Claims (3)

[Claims] 1. A floor structure comprising a cantilever beam attached to a side surface of a floor beam and a tip portion fixed to a floor structure located thereon. 2. The method according to claim 1, wherein a plurality of cantilever beams are mounted on a side surface of a substantially central portion of the floor beam, and the plurality of cantilever beams are symmetrically arranged around the center of the floor beam. Item 2. The floor structure according to item 1. 3. A plurality of floor panels constituting a floor structure are arranged side by side in a space surrounded by floor beams, each floor panel is connected to the floor beams, and the direction in which the plurality of floor panels are lined up. A tip of a cantilever attached to a side surface of a substantially central portion in a longitudinal direction of a floor beam in an orthogonal direction is fixed to a floor panel which is a floor structure located thereon, and at least outer peripheral frames of a plurality of floor panels are connected to each other. The floor structure according to claim 1 or 2, wherein an outer peripheral frame is fixed to a floor beam in a direction in which the floor panels are arranged in the vicinity of an adjacent portion.