JP4033465B2 - Building floor structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor structure of a building such as a prefab house or an apartment.
[0002]
[Prior art]
In general, a floor of a prefabricated house or the like often has a structure in which a floor material made of ALC or the like is directly placed on the upper surface of a floor beam. However, in the case of such a floor, when an object falls on the flooring material or when a child jumps on the flooring material, vibration and impact sound generated on the flooring material propagates under the floor through the floor beam. There was a problem that it was easy to do.
[0003]
For this reason, measures such as increasing the weight of the flooring itself and increasing the rigidity of the floor beams and flooring have been taken to increase the vibration isolation performance of the floor, but in this case, the weight of the building is heavy. As a result, there was a problem that the influence on the frame and the foundation was large and the cost was greatly increased.
[0004]
Therefore, in recent years, as disclosed in, for example, Patent Document 1 and Patent Document 2, a floor receiving member is supported on a floor beam via an elastic support member, and the floor material is mounted on the mounting surface of the floor receiving member. An anti-vibration floor is proposed.
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 2003-35003 [Patent Document 2]
JP 2002-201754 JP [0006]
[Problems to be solved by the invention]
However, in the vibration-proof floor disclosed in Patent Document 1 and Patent Document 2 described above, the floor surface of the floor, that is, the height level of the floor surface, is a floor of a general floor on which the floor material is directly placed on the upper surface of the floor beam. It will be different from the height level of the surface. Therefore, when such an anti-vibration floor is applied to, for example, a living room or a dining room and juxtaposed with a general floor of a kitchen, there arises a problem that a step is generated between them, and the anti-vibration floor is prevented only at a specific location. It was difficult to apply a shaking bed.
[0007]
Therefore, an object of the present invention is to provide a floor structure of a building in which these are arranged side by side without causing a step between the vibration-proof floor and the general floor.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, the floor structure of the present invention is substantially the same as the upper surface of the upper flange of the floor beam , with the floor receiving member supported on the side portion of the floor beam made of H-shaped steel via an elastic support member. The first floor material is placed on the placement surface of the floor receiving member aligned at a height level, and the second floor material is placed directly on the upper surface of the upper flange of the floor beam, and the first floor material and The second flooring materials are arranged side by side so that their surfaces are substantially flush with each other.
[0009]
Further, an end portion of the first floor material is extended immediately above the floor beam, and a gap allowing vibration of the first floor material is formed between the lower surface of the end portion and the upper surface of the floor beam. Yes.
[0010]
Furthermore, a parting material is fixed to either the first floor material or the second floor material so as to close a gap provided between the first floor material and the second floor material.
[0011]
Furthermore, a surface portion of the second floor material is extended to the first floor material side so as to close a gap provided between the first floor material and the second floor material.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the figure, (1) is a floor beam made of H-shaped steel, and elastic support members (3) (3) are attached to one side of the floor beam (1) via brackets (2) (2). )… Is attached.
[0013]
The bracket (2) has a substantially L-shaped fixing piece (7) fixed to the floor beam (1) in a state of being applied from the web (4) to the lower flange (6) of the floor beam (1), Installation fixed to the vertical part (8) of the fixed piece (7) by welding or the like and projecting laterally from the vertical part (8) in parallel with the upper and lower flanges (5) (6) of the floor beam (1) A piece (10) and a pair of substantially trapezoidal rib pieces (11) fixed by welding or the like so as to straddle the fixed piece (7) and the installation piece (10) below the installation piece (10). And 11).
[0014]
And the vertical part (8) of the fixed piece (7) applied to the web (4) of the floor beam (1) is moved by the horizontal bolts (12), (12), and nuts (13), (13). Fixed to (4). Further, the horizontal portion (9) of the fixed piece (7) applied to the lower flange (6) of the floor beam (1) is caused by vertical bolts (14), (14), and nuts (15), (15). It is fixed to the lower flange (6). Thus, by fixing the substantially L-shaped fixing piece (7) from the web (4) of the floor beam (1) to the lower flange (6), the bracket (2) is fixed to the floor beam (1). Can be firmly fixed.
[0015]
The elastic support member (3) is, for example, a fluid-filled mount, and is installed on the installation piece (10) of the bracket (2). In this fluid-filled mount, when vibration is applied, pressure changes due to deformation of the internal rubber elastic body, and the internal low-viscosity fluid or high-viscosity fluid flows through the orifice passage, thereby absorbing the vibration. It has become.
[0016]
The fluid-filled mount includes a passive type and an active type with a sensor, and any one may be selected as appropriate according to the floor situation. Further, the elastic support member (3) is not limited to such a fluid-filled mount, and for example, a vibration-proof rubber or the like may be used. Furthermore, by appropriately changing the type of the elastic support member (3), it is possible to obtain a structure that emphasizes the reduction of floor vibration, a structure that emphasizes the reduction of floor impact sound, or a structure that emphasizes both of them. Become.
[0017]
A floor receiving member (20) is supported on the elastic support members (3), (3),... Arranged at intervals in the longitudinal direction of the floor beam (1). The floor receiving member (20) is made of, for example, C-shaped steel in which one end portions of the upper piece (22) and the lower piece (23) are integrally connected by a vertical piece (24), and each of these pieces (22) ( 23) Reinforcing pieces (19), (19) ... straddling (24) are provided at the necessary points. The floor receiving member (20) is arranged in parallel with the floor beam (1) so that the open part faces the opposite side of the floor beam (1). The upper surface of the upper piece (22) of the floor receiving member (20) is a placement surface (22a) for placing the floor material, and the height level of the placement surface (22a) is the floor beam. (1) It is arranged at the same height level as the upper surface of the upper flange (5).
[0018]
(30) is, for example, a first flooring as a flooring for a vibration-proof floor in a living room or a dining room, and a base material (34) such as a particle board on the upper surface of the ALC (32) (32). And a finishing material (33) such as a flooring material. The first floor material (30) is placed on the placement surface (22a) of the floor receiving member (20). And the connecting bolt (35) is inserted in the ALC (32) (32)... Of the first floor material (30) in the vertical direction through the notch, and the lower end of the connecting bolt (35) is inserted. The first flooring (30) is fixed on the floor receiving member (20) by engaging the attached connecting fitting (36) with the upper piece (22) of the floor receiving member (20). Further, the end portion of the first floor material (30) extends to the position directly above the floor beam (1), and the lower surface of the end portion and the upper flange of the floor beam (1) are cut out. A gap (37) that allows vibration of the first flooring (30) is formed between the upper surface of (5).
[0019]
In this anti-vibration floor, the elastic support members (3), (3) generate vibration generated when an object falls on the first flooring (30) or jumps on the first flooring (30). Since it is attenuated by ..., floor vibration and floor impact sound can be reduced. Moreover, even if the first floor material (30) vibrates, the vibration does not propagate to the floor beam (1) due to the gap (37) between the lower surface of the end portion and the upper surface of the floor beam (1). It has become.
[0020]
(31) is, for example, a second floor material as a floor material of a general floor in a kitchen, and a base material (34) such as particle board and a finishing material (33) such as a flooring material are provided on the upper surface of the ALC (32). It is configured by pasting and has substantially the same thickness as the first flooring (30). The end of the second floor material (31) is directly placed on the upper surface of the upper flange (5) of the floor beam (1).
[0021]
In this way, the first floor material (30) of the vibration-proof floor is placed on the upper surface of the floor receiving member (20), and the second floor material (31) of the general floor is placed on the upper surface of the floor beam (1). Since the upper surface of the floor receiving member (20) and the upper surface of the floor beam (1) are arranged at substantially the same height level, the first floor material (30) and the second floor material ( 31) are arranged side by side so that the surfaces are substantially flush with each other.
[0022]
Further, a slight gap (40) is secured between the first floor material (30) and the second floor material (31). As shown in FIG. The hermetic material (50) is filled and closed with the parting material (41). As shown in FIG. 4, the parting material (41) is divided into a first horizontal piece (42) covering the edge of the finishing material (33) of the first floor material (30) and a second floor material (31). A fixed second horizontal piece (43) and a connecting piece (44) for connecting the first horizontal piece (42) and the second horizontal piece (43) are formed in a substantially Z-shape.
[0023]
Then, with the second horizontal piece (43) placed on the base material (34) of the second floor material (31), the screws from the second horizontal piece (43) to the base material (34) and the ALC (32) are screwed. (46) (46)… After screwing and fixing, the finishing material (33) is covered with the second horizontal piece (43) and covered, so that the parting material (41) is attached to the second floor material (31). It has been. In fixing the second horizontal piece (43), for example, an adhesive may be used without using the screws (46) (46). In this way, by fixing the parting material (41) to the first flooring (30) without fixing it to the first flooring (30), the vibration of the first flooring (30) is caused by the parting material ( 41), it is difficult to propagate to the second flooring material (31).
[0024]
FIG. 5 shows a floor structure according to another embodiment. In this case, the parting material as described above is abolished, and instead, the surface portion of the first flooring (30), that is, the end portions of the base material (34) and the finishing material (33) are cut out, The surface portion of the second floor material (31), that is, the base material (34) and the finishing material (33) are extended to the first floor material (30) side so as to fit in the notch portion of the first floor material (30). Thus, the gap (40) between the first flooring (30) and the second flooring (31) is closed. In addition, the edge part in the finishing material (33) of a 1st flooring (30) is notched, and the finishing material (33) of a 2nd flooring (31) is settled in the notch of a 1st flooring (30). As described above, the gap (40) between the first flooring (30) and the second flooring (31) may be closed by extending the first flooring (30).
[0025]
The present invention is not limited to the above embodiment, and it is needless to say that many modifications and changes can be made to the above embodiment within the scope of the present invention.
[0026]
【The invention's effect】
As is apparent from the above description, in the floor structure of the present invention, the first floor material on the vibration-proof floor side having the vibration-proof function and the second floor material on the general floor side not having the vibration-proof function are used. Since the surfaces are arranged side by side so as to be substantially flush with each other, the anti-vibration floor and the general floor can be continued without any step in the building. For this reason, it becomes easy to arrange an anti-vibration floor only in a specific location where anti-vibration performance is required, and the floor construction cost can be reduced.
[0027]
In addition, by suppressing the surface of the first floor material, that is, the floor surface of the vibration-proof floor, to the same level as the height level of the surface of the second floor material, that is, the floor surface of the general floor side, There will be no inconveniences such as a review of the design of the interior material, a change in the basic structure of the building, etc., and a reduction in the ceiling height.
[0028]
Further, by positioning the end of the first floor material directly above the floor beam, the first floor material can be constructed in the same arrangement pattern as the second floor material, and the workability can be improved. . In addition, since a gap allowing vibration of the first flooring is formed between the lower surface of the end of the first flooring and the upper surface of the flooring, the vibration of the first flooring propagates to the flooring. Can be prevented.
[0029]
Furthermore, since the gap between the first floor material and the second floor material is closed by the surface part of the parting material or the second floor material, the vibration-proof floor and the general floor can be continuously displayed with good appearance.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a main part of a floor structure according to an embodiment of the present invention.
FIG. 2 is a front sectional view of the anti-vibration floor side.
FIG. 3 is a front sectional view of the main part on the vibration-proof floor side in the same manner.
FIG. 4 is an exploded perspective view of the parting material portion.
FIG. 5 is a side sectional view of an essential part of a floor structure according to another embodiment of the present invention.
[Explanation of symbols]
(1) Floor beam (3) Elastic support member
(5) Upper flange (20) Floor receiving member (22a) Placement surface (30) First floor material (31) Second floor material (33) Finishing material (34) Base material (37) Gap (40) Gap ( 41) Parting materials

Claims (4)

The floor receiving member is supported on the side of the floor beam made of H-shaped steel via an elastic support member, and is placed on the mounting surface of the floor receiving member that is aligned at substantially the same level as the upper surface of the upper flange of the floor beam. The first flooring is placed, and the second flooring is placed directly on the upper surface of the upper flange of the floor beam, and the surfaces of the first flooring and the second flooring are substantially flush. The floor structure of the building is characterized by the parallel arrangement. The end portion of the first bed material causes extending immediately above the floor beam, between the upper surface of the lower surface and the floor beams of its ends, according to claim 1 which is a gap that allows the oscillation of the first floor member The building floor structure described . By fixing one to the parting material either said first bed member and the second flooring, according to claim 1 or 2, wherein was set to close the gap provided between the first bed member and the second flooring Building floor structure. The building according to claim 1 or 2 , wherein a surface portion of the second floor material is extended to the first floor material side so as to close a gap provided between the first floor material and the second floor material. Floor structure.

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