JP2004003283A - Floor structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor structure for improving sound insulation and securing a larger living space and a ceiling depth space. <P>SOLUTION: A thin liquid-sealed mount 2 formed flat is installed between a floor beam 1 and a floor panel 3 disposed on the floor beam 1, which is disposed so that the floor panel 3 is supported on the liquid-sealed mount 2. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a floor structure of a building structure such as a general house.
[0002]
[Prior art]
In a general house or the like, vibration is generated when an impact is applied to a floor by jumping or dropping from a step, and the vibration causes a problem such as unpleasant noise or uncomfortable vibration. Furthermore, in a detached house or a condominium, the vibration or impact sound generated on the floor of a living room or corridor is directly transmitted to the downstairs, which may be a significant noise for residents downstairs.
[0003]
Therefore, various measures have conventionally been taken in order to suppress the vibration generated on the floor of a general house or the like. For example, as disclosed in Patent Document 1 or the like, impacts or the like on the floor beams of a building structure are taken. There is known a floor structure in which a floor panel is mounted and fixed via a liquid ring mount that absorbs vibration of the floor. In this case, the floor panel is placed and fixed on the liquid ring mount fixed to the upper surface of the floor beam, or the peripheral edge of the floor panel is fixed to the bracket attached to the side of the floor beam via the liquid ring mount. Placed and fixed. In this floor structure, the vibration generated in the floor panel is absorbed by the liquid seal mount, so that it is possible to reduce the impact sound and vibration in the 63 Hz band (45 to 90 Hz) propagated downstairs.
[0004]
The liquid seal mount used here generally has a structure in which a liquid is sealed and a plurality of liquid chambers communicating with each other through an orifice passage are provided inside a rubber elastic body. When an impact from a floor panel or the like is applied to the liquid ring mount, the rubber elastic body is compressed and deformed up and down, so that the impact is reduced, and the liquid flows through the orifice passage as the volume of each liquid chamber changes. The vibration is effectively absorbed by the liquid column resonance action of the liquid.
[0005]
[Patent Document 1]
JP-A-11-13193
[0006]
[Problems to be solved by the invention]
By the way, the above-mentioned conventional liquid ring mount has a structural reason that two liquid chambers usually provided inside a rubber elastic body must be arranged in series in the height direction (vibration input direction). Therefore, the height dimension is large. Therefore, when such a liquid ring mount is installed between the upper surface of the floor beam and the floor panel, the arrangement position of the floor panel becomes higher by the height of the liquid ring mount, and the living room on the floor panel becomes higher. The problem that space becomes narrow arises. When such a liquid ring mount is installed between the bracket provided on the side portion of the floor beam and the floor panel, the space above the ceiling formed below the floor panel is the liquid ring mount. Therefore, there is a problem that it is difficult to secure a sufficient space for wiring and piping arranged in the space.
[0007]
The present invention has been made in view of the above situation, and it is an object of the present invention to provide a floor structure capable of improving sound insulation and providing a larger living space and a ceiling space. Is what you do.
[0008]
Means for Solving the Problems, Functions and Effects of the Invention
The floor structure according to the invention as set forth in claim 1, which solves the above-mentioned problem, is a floor structure in which a floor panel is provided on a floor beam of a building structure, wherein the floor panel has a flat shape between the floor beam and the floor panel. And the floor panel is disposed so as to be supported by the liquid ring mount.
[0009]
The floor structure of the present invention has a structure in which the liquid ring mount is installed between the floor beam and the floor panel, so that the impact sound and vibration generated on the floor panel can be effectively reduced by the liquid ring mount. . And because the liquid ring mount is formed flat, the position of the floor panel is raised and the living space on the floor panel is greatly reduced, and the space under the floor panel under the ceiling is significantly reduced. Nothing to do. Therefore, it is advantageous in securing a sufficiently large living space and a ceiling space.
[0010]
Therefore, according to the floor structure of the present invention, since the flat liquid-ring mount is installed between the floor beam and the floor panel, the sound insulation can be improved, and a larger living space or a ceiling can be obtained. The space can be advantageously secured.
[0011]
A floor structure according to a second aspect of the invention is the floor structure according to the first aspect, wherein the liquid ring mount is formed in a flat shape having a height to width ratio in a range of 1: 2 to 1:10. Means are adopted.
[0012]
According to this means, the liquid-ring mount becomes thin, so that the installation space for the liquid-ring mount can be reliably reduced. As a result, it is possible to more reliably suppress the elevation of the arrangement position of the floor panel and to more reliably suppress a significant decrease in the space under the floor panel under the ceiling.
[0013]
The height of the liquid ring mount refers to the distance between the support surface on the floor beam side and the support surface on the floor panel side, and the lateral width of the liquid ring mount is the highest in the direction perpendicular to the height direction. It refers to the width of the wide part.
[0014]
The floor structure according to a third aspect of the present invention is the floor structure according to the first or second aspect, wherein the liquid seal mount is formed into a plate-shaped partition member and a cylindrical shape having one end closed, and an end surface on an opening side is formed. An elastic support member arranged to face one surface of the partition member and forming a main liquid chamber between the partition member and the elastic member; and an elastic support member arranged to face one end surface of the partition member to the other surface. A cylindrical support member, a diaphragm whose outer peripheral edge is held at an inner peripheral portion of the support member to form a sub liquid chamber between the partition member and the partition member, and between the partition member and the support member. An orifice passage provided to communicate the main liquid chamber and the sub liquid chamber is provided.
[0015]
According to this means, since the orifice passage provided between the partition member and the support member can be provided so as to be located outside the sub liquid chamber, a thinner liquid seal mount having a lower height is realized. can do.
[0016]
The floor structure according to a fourth aspect of the present invention, in the first to third aspects of the present invention, is arranged on an end face of the liquid ring mount on the side supporting the floor panel so as to cover the entire area of the end face. Means that a restraining plate is attached is adopted.
[0017]
According to this means, even when vibration is partially input to a part of the restraint plate from the floor panel or the like placed on the restraint plate, the vibration supports the floor panel of the liquid ring mount via the restraint plate. Side end face. Accordingly, the flow of the liquid can be promoted by efficiently changing the volume of the liquid chamber of the liquid-ring mount, so that a favorable vibration reduction effect by the liquid-ring mount can be obtained.
[0018]
In addition, the constraining plate exhibits the above-mentioned function as long as it has rigidity. Therefore, as the material thereof, for example, a hard resin or a metal such as an iron-based material can be used.
[0019]
The floor structure according to a fifth aspect of the present invention is the floor structure according to the fourth aspect, wherein the restraint plate is provided on the restraint plate or a support member supporting the floor panel and the restraint plate. And means having a fastening member for fastening.
[0020]
According to this means, since the floor panel provided on the liquid ring mount is fixed directly to the restraining plate by the fastening member or indirectly via the support member, the floor panel is displaced with respect to the liquid ring mount. It can be arranged in a predetermined position without performing.
[0021]
When the ends of a plurality of floor panels are installed on one restraint plate (one liquid mount), a plurality of floor panels corresponding to the number of floor panels are provided for one restraint plate. A fastening member can be provided. In this manner, if a plurality of floor panels are fastened to one restraining plate by the fastening member, the plurality of floor panels are integrated, so that even when vibration is input to only one floor panel, The floor panel is integrally displaced, and the vibration can be transmitted substantially uniformly to the entire restraint plate.
[0022]
The floor structure according to a sixth aspect of the present invention is the floor structure according to the first to fifth aspects, wherein the floor beams have a bracket on a side surface portion of the liquid crystal mount on which the liquid ring mount is installed.
[0023]
According to this means, since the bracket on which the liquid ring mount is installed is provided on the side surface of the floor beam, the floor panel mounted on the liquid ring mount is positioned on the side surface of the floor beam near the upper surface of the floor beam. The floor structure can be arranged so as to be located in the floor. In this case, the use of the thin liquid ring mount formed in a flat shape allows the mounting position of the bracket to be close to the floor panel, so that a larger ceiling space can be secured.
[0024]
A floor structure according to a seventh aspect of the present invention is the floor structure according to the first to sixth aspects, wherein the floor panel comprises a casing formed of a metal plate and a filler filled in an internal space of the casing. This means is made of a composite plate.
[0025]
According to this means, a floor panel excellent in strength and sound insulation can be adopted. The filler may be appropriately selected from, for example, resins such as urethane, various types of concrete, and inorganic substances.
[0026]
The floor structure according to an eighth aspect of the present invention employs the means according to the first to seventh aspects, wherein a support member for supporting the floor panel is attached to a back surface of the floor panel. .
[0027]
According to this means, it is advantageous when a floor panel is formed by combining a plurality of small panels, or when a relatively rigid panel material is used as the floor panel. As the support member, a face material or a bar made of a metal such as an iron-based material or a wood-based material, or a combination of a plurality of them can be appropriately used.
[0028]
In a floor structure according to a ninth aspect of the present invention, in the invention according to the eighth aspect, the support member is provided so as to be separated from a plurality of divided portions on the back surface of the floor panel. Is adopted.
[0029]
According to this means, the vibration and the impact sound partially input to the divided portion of the floor panel are not transmitted to other divided portions via the support member. Therefore, the energy is localized in the divided portion of the floor panel to which the vibration or the impact sound is input, and the vibration or the impact sound does not spread to other divided portions, so that the sound insulation effect can be improved totally. . The number of divisions of the floor panel can be appropriately selected depending on the size and shape of the floor panel.
[0030]
A floor structure according to a tenth aspect of the present invention is the floor structure according to the first to ninth aspects, wherein the floor panel is disposed between the first floor panel supported by the floor beams and the first floor panel. And a second floor panel disposed at a distance from the first floor panel, wherein the liquid ring mount is provided between the first floor panel and the second floor panel. ing.
[0031]
According to this means, since the floor panel has a double structure, it is possible to realize a floor structure that is more excellent in sound insulation. The first floor panel and the second floor panel can be selected and adopted from various types such as, for example, wood-based or concrete-based, depending on the building structure in which they are disposed.
[0032]
In the floor structure according to the invention described in claim 11, in the invention described in claims 1 to 7, the floor panel has a spot facing portion on a back surface of a portion corresponding to the liquid ring mount installed on the floor beam. And a means that is supported by the liquid seal mount partially accommodated in the counterbore portion.
[0033]
According to this means, since a part of the liquid ring mount supporting the floor panel is stored in the counterbore portion, the arrangement position of the floor panel is reduced by the amount of the liquid ring mount stored in the counterbore portion. Can be lowered. Therefore, it is possible to suppress an increase in the arrangement position of the floor panel provided to be supported by the liquid ring mount.
[0034]
The floor structure according to a twelfth aspect of the present invention is the floor structure according to the first to seventh aspects, wherein the floor panel is provided on the entire area of a corner where an end surface on a side mounted on the floor beam and a back surface intersect. A plurality of panel members having a counterbore extending along an end face are connected by a connecting member attached to the counterbore, and are installed on the floor beam and at least partially inside the counterbore. Is supported via the connecting member by the liquid seal mount in which is stored.
[0035]
According to this means, since at least a part of the liquid seal mount supporting the floor panel via the connecting member is housed in the counterbore portion, only the liquid seal mount is stored in the counterbore portion. , The arrangement position of the floor panel can be lowered. For this reason, it is possible to suppress an increase in the arrangement position of the floor panel that is configured by connecting a plurality of panel members with the connecting member and is disposed so as to be supported by the liquid seal mount. In addition, the connection member which connects each panel material can employ | adopt L-shaped steel, T-shaped steel, etc., for example.
[0036]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0037]
[Embodiment 1]
FIG. 1 is a cross-sectional view of the floor structure according to the present embodiment, and FIG. 2 is a cross-sectional view of a liquid ring mount used in the present embodiment, which is a cross-sectional view taken along line II-II of FIG. FIG. 3 is a plan view of the liquid ring mount.
[0038]
In the floor structure of the present embodiment, as shown in FIG. 1, a flat liquid-ring mount 2 is installed between a floor beam 1 and a floor panel 3 disposed on the floor beam 1, and the floor panel 3 Are provided so as to be supported by the liquid ring mount 2.
[0039]
The floor beam 1 is composed of a building body of a building structure, and is formed in a rectangular shape by using wood. A circular recess 1a having a relatively shallow depth is provided at a predetermined portion of the upper surface of the floor beam 1 where the liquid seal mount 2 is installed. The circular concave portion 1a is formed by removing a part of the floor beam 1 and depressing the upper surface thereof.
[0040]
As shown in FIGS. 2 and 3, the liquid seal mount 2 is formed in a plate-shaped partition member 2 a and a cylindrical shape having one end closed, and an opening-side end surface faces one surface of the partition member 2 a. An elastic support member 2b disposed to form a main liquid chamber 2c with the partition member 2a; a cylindrical support member 2d disposed so that one end surface thereof faces the other surface of the partition member 2a; A diaphragm 2e having an outer peripheral edge held by an inner peripheral portion of the member 2d to form a sub-liquid chamber 2f between the diaphragm 2e and the partition member 2a, and between the partition member 2a and the support member 2d outside the sub-liquid chamber 2f. And an orifice passage 2i that communicates with the main liquid chamber 2c and the sub liquid chamber 2f via the inlet 2g and the outlet 2h, and the main liquid chamber 2c and the sub liquid chamber 2f are not compressed. Liquid L is enclosed.
[0041]
This liquid ring mount 2 is formed in a disk shape having a height of about 25 mm and a width (outer diameter) of about 110 mm, and is formed in a flat shape having a height-to-width ratio of 1: 4.4. Have been. The liquid ring mounts 2 are positioned by fitting and holding the support members 2d into the circular recesses 1a provided on the floor beam 1, and an appropriate number of the liquid ring mounts 2 are installed at predetermined positions on the floor beam 1.
[0042]
The floor panel 3 is configured by combining a plurality of wood-based panels. The floor panel 3 is placed on the liquid ring mount 2 such that the back surface thereof contacts the entire upper end surface of the elastic support member 22 of the liquid ring mount 2. Thus, the floor panel 3 is disposed such that a predetermined portion such as a peripheral end thereof is supported by the liquid seal mount 2. Note that an intermediate floor material, a surface finishing material, and the like (not shown) are appropriately disposed on the floor panel 3.
[0043]
In the floor structure of the present embodiment configured as described above, when an impact or the like is applied to the floor panel 3 and vibration occurs, the vibration is efficiently absorbed by the liquid seal mount 2 that supports the floor panel 3. The impact sound and vibration in the 63 Hz band (45 to 90 Hz) propagated downstairs are effectively reduced. Since the liquid seal mount 2 used here is formed in a flat shape, the arrangement position of the floor panel 3 does not rise so much, so that the living space on the floor panel 3 does not significantly decrease.
[0044]
Therefore, according to the floor structure of the present embodiment, since the thin liquid ring mount 2 formed in a flat shape between the floor beam 1 and the floor panel 3 is installed, the sound insulation can be improved. Besides, it is possible to avoid a large rise in the arrangement position of the floor panel 3 and to advantageously secure a larger living space.
[0045]
In particular, the liquid seal mount 2 used in the present embodiment is formed in a flat shape having a height-to-width ratio of 1: 4.4, and an orifice passage provided between the partition member 2a and the support member 2b. Since 2i is provided so as to be located outside the sub liquid chamber 2f, a thin type is reliably realized.
[0046]
[Modification 1]
FIG. 4 is a cross-sectional view of a floor structure according to the present modification.
[0047]
In the first embodiment, the circular concave portion 1a provided for positioning the liquid ring mount 2 is formed by removing a part of the floor beam 1 and depressing the upper surface thereof. As shown in FIG. 4, a ring-shaped frame member 1b is fixed to the upper surface of the floor beam 1 so that a circular concave portion 1a is formed inside the frame member 1b.
[0048]
The frame member 1b does not necessarily have to be formed so as to surround the entire area in the circumferential direction. At least three portions in the circumferential direction are provided so that the lateral displacement of the liquid seal mount 2 can be restricted. Alternatively, it may be provided.
[0049]
[Embodiment 2]
FIG. 5 is a cross-sectional view of the floor structure according to the present embodiment.
[0050]
As shown in FIG. 5, the floor structure of the present embodiment includes a floor beam 11, a flat liquid ring mount 12 installed on the floor beam 11, and a C-type channel as a support member attached to the back surface thereof. And floor panels 13, 13 disposed on the liquid ring mount 12 via steels 14, 14.
[0051]
The floor beam 11 is formed of a building body of a building structure, and is formed in a rectangular shape by H-shaped steel. A ring-shaped frame member 11b is attached to a predetermined portion of the upper surface of the floor beam 11 where the liquid seal mount 12 is installed, so that a circular recess 11a having a relatively shallow depth is provided inside the ring-shaped frame member 11b. I have.
[0052]
The liquid ring mount 12 is obtained by adding a restraint plate 12a to the liquid ring mount 2 formed in the same manner as the liquid ring mount 2 of the first embodiment. The restraining plate 12a is formed in a circular shape from an iron-based metal plate, and is fixed by an adhesive so as to abut on the entire end surface of the liquid ring mount 12 on the side supporting the floor panel 13. The structure of the main body of the liquid ring mount 12 is the same as that of the first embodiment, and thus the detailed description is omitted. The liquid ring mounts 12 are positioned by fitting and holding the lower ends of the liquid ring mounts 12 in the circular concave portions 11 a provided on the upper surface of the floor beam 11, and an appropriate number of the liquid ring mounts 12 are installed at predetermined positions on the floor beam 11. .
[0053]
The floor panels 13 and 13 are assembled by fixing C-type channel steels 14 and 14 with fastening members 14a and 14a such as bolts and nuts to the rear end portions of a plurality of concrete panels arranged adjacently in parallel. Thus, it is formed into a panel, and is formed in a rectangular shape having a predetermined size. As the floor panels 13, a plurality of floor panels other than the two panels shown in FIG. 5 are used. The floor panels 13, 13 are arranged such that the four corners are located on the restraining plate 12 a of the liquid seal mount 12 installed on the floor beam 11, so that the restraining plate 12 a and the C-type channel steel 14, 14 are formed. Are attached by an adhesive or the like.
[0054]
As shown in FIG. 5, at the place where the two floor panels 13, 13 are disposed adjacent to each other, the end faces of the adjacent two floor panels 13, 13 on the side where the C-type channel steels 14, 14 are attached to each other. The two adjacent C-type channel steels 14 and 14 are placed on one restraining plate 12a of the liquid ring mount 12 installed on the floor beam 11 so that It is arranged in the state where it was. That is, each corner portion of two adjacent floor panels 13 is supported by one liquid seal mount 12 via one restraint plate 12a. On the floor panels 13 thus arranged, intermediate floor materials and surface finishing materials (not shown) are appropriately disposed.
[0055]
In the floor structure of the present embodiment configured as described above, similarly to the first embodiment, a thin liquid ring mount 12 formed in a flat shape between a floor beam 11 and a floor panel 13 is installed. Therefore, the same operation and effect as those of the first embodiment can be obtained.
[0056]
In particular, in the floor structure of the present embodiment, since the restraint plate 12a is attached to the end surface of the liquid ring mount 12 on the side supporting the floor panels 13, 13, when vibration is input to only one floor panel 13, Also, the vibration is transmitted substantially uniformly from the C-type channel steel 14 to the entire end face of the liquid seal mount 12 via the restraint plate 12a. Thus, the volume of the liquid chamber of the liquid ring mount 12 can be efficiently changed to promote the flow of the liquid, so that a favorable vibration reduction effect by the liquid ring mount 12 can be obtained.
[0057]
In the present embodiment, both corners of the two floor panels 13 and 13 arranged adjacent to each other are supported by one liquid ring mount 12. The liquid ring mount 12 may be installed so that each of the corners 13 is supported by one liquid ring mount 12. In this case, when the width of the C-type channel steel 14 is smaller than the end surface of the liquid ring mount 12 on the side supporting the floor panels 13, 13, the constraint plate 12 a attached to the liquid ring mount 12 as described above. Works effectively.
[0058]
[Modification 2]
FIG. 6 is a cross-sectional view of a floor structure according to the present modification.
[0059]
In the second embodiment, the C-type channel steels 14 and 14 that support the floor panels 13 and 13 and the restraint plate 12a are bonded to each other with an adhesive or the like to fix them. In this case, a restraining plate 12a provided with a fastening member for fastening the two C-type channel steels 14, 14 and one restraining plate 12a is employed, thereby fixing both. That is, as shown in FIG. 6, the restraint plate 12a includes two bolts 12b, 12b protruding from the upper surface of the restraint plate 12a, and a nut 12c screwed to a tip end of each of the bolts 12b, 12b. 12c.
[0060]
In the case of the present modification, two C-type channel steels 14, 14 are fastened to one restraining plate 12a with a fastening member, so that the two floor panels 13, 13 are integrated, Even when vibration is input to only one floor panel 13, both floor panels 13, 13 are displaced integrally, so that the vibration can be transmitted substantially evenly to the entire restraint plate 12a. it can.
[0061]
When a support member such as the C-type channel steel 14 is not attached to the back surface of the floor panel 13, the restraint plate 12a and the floor panel 13 may be directly fastened by a fastening member.
[0062]
[Embodiment 3]
FIG. 7 is a cross-sectional view of the floor structure according to the present embodiment.
[0063]
As shown in FIG. 7, the floor structure of the present embodiment includes a floor beam 21 having a bracket 21a, a flat liquid ring mount 22 installed on the bracket 21a, and a C as a support member attached to the back surface thereof. And a floor panel 23 disposed on the liquid seal mount 22 via a mold channel steel 24.
[0064]
The floor beam 21 is formed of a building body of a building structure, and is formed in a rectangular shape by H-shaped steel. A bracket 21a having a mounting portion on which the liquid seal mount 22 is installed is fixed to a portion slightly below the center of the side surface of the floor beam 21 so as to extend inward in the horizontal direction. Since a ring-shaped frame member 21c is attached to the mounting portion of the bracket 21a, a circular recess 21b having a relatively shallow depth is provided inside the ring-shaped frame member 21c. An appropriate number of the brackets 21a are attached to predetermined locations on the inner peripheral side of the floor beam 21 at an appropriate distance.
[0065]
The same liquid-sealing mount 22 as the liquid-sealing mount 2 of the first embodiment is used. Therefore, detailed description of the structure and the like is omitted. The liquid seal mount 22 is positioned and installed on a mounting portion of a bracket 21a provided on the floor beam 21 by fitting and holding a lower end portion of the bracket 21a in a circular concave portion 21b.
[0066]
The floor panel 23 is composed of a casing 23a formed of an iron-based metal plate and a filler 23b made of lightweight foamed concrete filled and arranged in the internal space of the casing 23a. The floor panel 23 is assembled by a plurality of C-channel steels 24, which are arranged adjacent to each other, and are fixed to the rear end. The floor panel 23 is placed so that the C-type channel steel 24 is in contact with the entire upper end surface of the liquid seal mount 22 installed on the bracket 21 a of the floor beam 21. As a result, the floor panel 23 is placed on the liquid ring mount 22 via the C-shaped channel steel 24 on the side surface of the floor beam 21, and the upper surface thereof is arranged to be substantially the same as the upper surface of the floor beam 21. Have been. On the floor panel 23, an intermediate floor material, a surface finishing material, and the like (not shown) are appropriately disposed.
[0067]
In the floor structure of the present embodiment configured as described above, the liquid ring mount 22 installed between the bracket 21a provided on the side surface of the floor beam 21 and the floor panel 23 is formed to be flat and thin. Therefore, since the mounting position of the bracket 21a can be brought closer to the floor panel 23, it is possible to avoid a significant decrease in the space at the ceiling under the floor panel 23. Therefore, the sound insulation can be improved, and a larger ceiling space can be advantageously secured.
[0068]
Further, the floor panel 23 used in the present embodiment is composed of a casing 23a made of a metal plate and a filler 23b made of lightweight foam concrete filled and arranged in the internal space of the casing 23a, and has excellent strength and sound insulation. Therefore, it is possible to realize a floor structure with further improved sound insulation.
[0069]
[Embodiment 4]
8 is a cross-sectional view of the floor structure according to the present embodiment, which is a cross-sectional view taken along a portion corresponding to the line VIII-VIII in FIG. 10, FIG. 9 is a perspective view of a floor beam in the floor structure, FIG. 10 is an explanatory view showing an arrangement state of the support members arranged on the back surface of the floor panel in the floor structure.
[0070]
As shown in FIG. 8, the floor structure of the present embodiment is attached to a floor beam 31 having brackets 31f,..., A flat liquid-ring mount 32 installed on the brackets 31f,. , And a floor panel 33 disposed on the liquid seal mount 32 via a support member made of C-type channel steel 35.
[0071]
The floor beam 31 is formed of a building body of a building structure, and as shown in FIG. 9, four outer beams 31a to 31d forming each side of a rectangle, and two opposite outer beams 31a and 31c. And a single inner beam 31e whose both ends are connected to the central portion. This floor beam 31 is formed of H-shaped steel. At the predetermined 16 locations on the inner surface of the floor beam 31, brackets 31f,... Having a mounting portion on which the liquid seal mounts 32,. . The mounting portions of the brackets 31f,... Are provided with a ring-shaped frame member 31h,.
[0072]
As shown in FIG. 8, the liquid ring mounts 32 are the same as the liquid ring mounts 12 of the second embodiment, and have constraint plates 32a. However, the restraint plates 32a are formed by bolts 32b projecting from the center of one surface of the restraint plates 32a, and nuts 32c screwed to the tips of the bolts 32b. The second embodiment differs from the second embodiment in that the second embodiment has a fastening member. The fastening members fasten and fix the C-type channel steels 35,... Installed on the constraint plates 32a,. Since the structure of the liquid ring mounts 32,... Is the same as that of the second embodiment, detailed description is omitted. The liquid seal mount 32 is positioned and installed on the mounting portion of the brackets 31f,... Provided on the floor beam 31 with its lower end fitted and held in the circular concave portion 31g,.
[0073]
The floor panel 33 is formed by laminating a base panel material 33a, intermediate floor materials 33b and 33c, and a surface finishing material 33d. The single floor panel 33 is formed in a rectangular shape having substantially the same size as the outer beams 31 a to 31 d of the floor beam 31.
[0074]
On the back surface of the floor panel 33, square pipes 34,... And C-type channel steels 35,. As shown in FIG. 10, the support members are disposed separately from each other on the A to D portions obtained by dividing the back surface of the floor panel 33 into four parts. That is, four square pipes 34,... And two C-type channel steels 35, 35 were fastened to the respective portions A to D by fastening members 34a including bolts and nuts, and assembled in a crossbeam. Four sets of support members are provided separately from each other. Therefore, the square pipes 34 of the part A and the part B extending in the same direction, and the square pipes 34 of the part C and the part D are not connected. Further, the C-type channel steels 35 of the A portion and the C portion extending in the same direction, and the C-type channel steels 35 of the B portion and the D portion are not connected.
[0075]
In the floor panel 33, four corner portions (M1 to M16 in FIG. 10) of the A to D portions are supported by the liquid seal mounts 32,. It is arranged in. That is, both ends of the C-type channel steels 35,... Located at the respective corners are fastened and fixed to the restraining plates 32a,. It is arranged in the state where it was done. Thereby, the floor panel 33 is disposed so as to be located a predetermined distance above the upper surface of the floor beam 31.
[0076]
The floor structure of the present embodiment configured as described above has a thin liquid-tight mount 32 formed flat between the brackets 31 f provided on the side surfaces of the floor beam 31 and the floor panel 33. Are provided, the same operation and effect as in the third embodiment can be obtained, for example, the sound insulation can be improved, and a larger ceiling space can be advantageously secured.
[0077]
In particular, in the floor structure of the present embodiment, a support member made of square pipes 34,... And C-type channel steels 35,. Vibration and impact sound partially input to the A to D portions of the floor panel 33 are propagated to other portions via the support members because the portions are arranged separately from the D portion to the D portion. Nothing. Therefore, the energy is localized in the divided portion of the floor panel 33 to which the vibration and the impact sound are input, and the vibration and the impact sound do not spread to other divided portions, so that the sound insulation effect can be improved totally. it can.
[0078]
[Embodiment 5]
FIG. 11 is a cross-sectional view of the floor structure according to the present embodiment.
[0079]
As shown in FIG. 11, the floor structure of the present embodiment has a double floor structure in which the floor panel disposed on the floor beam 41 is composed of the first floor panel 43a and the second floor panel 43b and has excellent sound insulation. In this, an appropriate number of liquid ring mounts 42, 42 are provided between the first floor panel 43a and the second floor panel 43b.
[0080]
The floor beam 41 is formed of a building body of a building structure, and is formed in a rectangular shape by H-shaped steel.
[0081]
The first floor panel 43a is a first floor panel disposed so that its peripheral end is placed on the upper surface of the floor beam 41. The first floor panel 43a is formed in a rectangular shape having substantially the same size as the floor beam 41. A ring-shaped frame member 43d is attached to a predetermined portion of the upper surface of the first floor panel 43a where the liquid seal mounts 42, 42 are installed, so that a circular recess 43c having a relatively shallow depth is provided inside the ring-shaped frame member 43d. Is provided.
[0082]
The liquid ring mounts 42, 42 are positioned by being fitted and held in a circular recess 43c provided in the first floor panel 43a, and an appropriate number of the liquid seal mounts are installed at predetermined positions on the first floor panel 43a. . The same liquid ring mounts 42 and 42 as the liquid ring mount 2 of the first embodiment are used. Therefore, detailed description of the structure and the like is omitted.
[0083]
The second floor panel 43b is configured by combining a plurality of wood-based panels, and is formed in a rectangle having substantially the same size as the floor beam 41. The second floor panel 43b is placed on the liquid ring mounts 42, 42 such that the back surface thereof contacts the entire upper end surfaces of the liquid ring mounts 42, 42. As a result, the second floor panel 43b is placed in a state where the second floor panel 43b is supported by the liquid seal mounts 42, 42 at a position spaced apart from the first floor panel 43a by the height (thickness) of the liquid seal mounts 42, 42. And a double floor structure with the first floor panel 43a. On the second floor panel 43b, an intermediate floor material, a surface finishing material, and the like (not shown) are appropriately disposed.
[0084]
Also in the double floor structure of the present embodiment configured as described above, the first floor panel 43a supported by the floor beams 41 and disposed on the first floor panel 43a with a distance therebetween. The thin liquid-ring mounts 42, 42 formed in a flat shape between the second floor panel 43b to be formed are installed, so that sound insulation can be improved and the arrangement of the second floor panel 43b. By avoiding a significant rise in position, a larger living space can be advantageously secured, and the same operation and effect as in the above embodiment can be achieved.
[0085]
In addition, although the 2nd floor panel 43b in this embodiment is comprised combining the wood-based panel, you may comprise by other things, such as a concrete panel.
[0086]
[Embodiment 6]
FIG. 12 is a perspective view of the floor structure according to the present embodiment.
[0087]
As shown in FIG. 12, the floor structure of the present embodiment is provided at a predetermined position on a floor beam 51, a plurality of flat liquid-ring mounts 52, 52 installed on the floor beam 51, and a back surface thereof. The floor panel 53 has counterbore portions 53a, 53a, and is disposed on the floor beam 51 such that the counterbore portions 53a, 53a are supported by the liquid seal mounts 52, 52.
[0088]
The floor beam 51 is formed of a building body of a building structure, and is formed in a rectangular shape by H-section steel.
[0089]
The liquid ring mounts 52, 52 are formed in the same manner as the liquid ring mount 12 of the second embodiment, and have a restraint plate 52a on the upper end surface that supports the floor panel 53. Since the structures of the liquid ring mounts 52 and 52 main body are the same as those of the first embodiment, detailed description will be omitted. The liquid-mount mounts 52, 52 are positioned by fixing the lower end surface thereof to a predetermined position on the upper end surface of the floor beam 51 with an adhesive, a pressure-sensitive adhesive, or the like, and an appropriate number of them are installed.
[0090]
The floor panel 53 is formed in a rectangular plate shape from lightweight foamed concrete (ALC). The floor panel 53 is disposed on the floor beam 51 such that four corner portions thereof are supported by liquid seal mounts 52, 52 installed on the floor beam 51. In each corner on the back surface of the floor panel 53, counterbore portions 53a, 53a supported by liquid seal mounts 52, 52 are provided. The counterbore portions 53a have a rectangular bottom surface formed by sides slightly longer than the width of the liquid ring mounts 52, 52, and have a depth slightly smaller than the height of the liquid ring mounts 52, 52. Is formed.
[0091]
Therefore, the floor panel 53 is disposed on the floor beam 51 in a state where the floor panel 53 is supported by the liquid seal mounts 52, 52 that are mostly accommodated in the counterbore portions 53 a, 53 a. As a result, the arrangement position of the floor panel 53 is lowered closer to the floor beam 51 by an amount corresponding to the liquid seal mounts 52, 52 being accommodated in the counterbore portions 53a, 53a. A plurality of floor panels 53 arranged in this manner are arranged side by side such that end faces on the long sides are in contact with each other. On the floor panel 53 provided in this manner, an intermediate floor material, a surface finishing material, and the like (not shown) are appropriately provided.
[0092]
The floor structure of the present embodiment configured as described above has restraining plates 52a and 52a between a floor beam 51 and a floor panel 53 and is formed in a flat thin shape, similarly to the second embodiment. Since the liquid ring mounts 52, 52 are provided, the same operation and effect as those of the second embodiment can be obtained.
[0093]
In particular, the floor panel 53 in the floor structure of the present embodiment has counterbore portions 53a, 53a at four corner portions on the back surface (portions corresponding to the liquid seal mounts 52, 52 installed on the floor beams 51). Since the floor panel 53 is provided, the floor panel 53 is disposed on the floor beam 51 in a state where the floor panel 53 is supported by the liquid seal mounts 52, 52 most of which are accommodated in the counterbore portions 53a. Therefore, the position of the floor panel 53 can be lowered by an amount corresponding to the liquid seal mounts 52, 52 being accommodated in the counterbore portions 53a, 53a. It is possible to suppress an increase in the arrangement position of the floor panel 53 provided. Thus, it is possible to avoid the living room space above the floor panel 53 from being reduced, and to advantageously secure a larger living room space.
[0094]
[Modification 3]
FIG. 13 is a cross-sectional view of a floor structure according to the present modification.
[0095]
This modification is an example in the case of using a floor beam 51 having a narrow width at the upper end surface on which the liquid seal mount 52 is installed in the floor structure of the sixth embodiment. That is, as shown in FIG. 13, the floor beam 51 of this modification is placed on the floor beam 51 such that two floor panels 53, 53 have their short side end faces facing each other. In this case, there is not enough space (width) to install two liquid ring mounts 52, 52 supporting the counterbore portions 53a, 53a of the floor panels 53, 53, respectively. Therefore, brackets 51a, 51a having installation portions 51b, 51b extending from the upper end surface of the floor beam 51 to both sides are attached to both sides of the portion where the liquid seal mount 52 of the floor beam 51 is to be installed. ing. As a result, the upper end surface of the portion of the floor beam 51 where the liquid seal mounts 52, 52 are to be installed is extended in both lateral directions.
[0096]
The liquid seal mounts 52, 52 in the present modification are positioned by fixing the lower end surfaces thereof to the upper end surface of the floor beam 51 and the installation portions 51b, 51b with an adhesive or the like. The upper end surface is fixed to the bottom surface of the counterbore portions 53a, 53a with an adhesive or the like.
[0097]
As described above, in the floor beam 51 of the present modification, the brackets 51a, 51a are attached to the portions where the liquid seal mounts 52, 52 are to be installed, so that the installation space for the liquid seal mounts 52, 52 is secured. Therefore, it is possible to adopt a material having a narrow upper end surface, and thus the weight of the floor beam 51 can be reduced.
[0098]
[Modification 4]
FIG. 14 is a cross-sectional view of a floor structure according to the present modification.
[0099]
As shown in FIG. 14, this modification example is such that when two floor panels 53 are placed on a floor beam 51 such that their short-side end faces face each other, the two The two counterbore portions 53a, 53a of the floor panels 53, 53 adjacent to each other are supported by one liquid ring mount 52. In other words, in this case, the two floor panels 53, 53 are provided such that the bottom surfaces of the counterbore portions 53a, 53a provided at the respective corner portions are restrained plates 52a provided at the upper ends of the liquid seal mounts 52, 52. Are arranged so as to be supported by approximately half of the. Therefore, the bottom surfaces of the counterbore portions 53a, 53a of the floor panels 53, 53 are formed to be approximately half the size of the sixth embodiment. Further, the floor beam 51 has a narrow width whose upper end surface is sufficient to mount only one liquid ring mount 52.
[0100]
In the floor structure configured as described above, the two floor panels 53, 53 placed on the floor beams 51 such that the short-side end faces face each other are fixed by one liquid-tight mount 52. Since the liquid ring mount 52 is supported, the number of liquid ring mounts 52 to be installed can be reduced. Further, since the floor beam 51 having a narrow width at the upper end surface can be employed as it is, the weight of the floor beam 51 can be reduced.
[0101]
[Embodiment 7]
FIG. 15 is a perspective view of the floor structure according to the present embodiment.
[0102]
As shown in FIG. 15, the floor structure of the present embodiment is provided on a floor beam 61, a plurality of flat liquid ring mounts 62 installed on the floor beam 61, and a corner on the short side of the back surface. And a floor panel 63 disposed on the liquid seal mount 62 via a connecting member 64 attached to the counterbore 63a.
[0103]
The floor beam 61 is formed in a rectangular shape by H-shaped steel, and is the same as that of the sixth embodiment.
[0104]
The liquid ring mount 62 is formed in the same manner as the liquid ring mount 12 of the second embodiment, and has a restraint plate 62 a on the upper end surface that supports the floor panel 63. Note that the structure of the liquid seal mount 62 main body is the same as that of the first embodiment, and a detailed description thereof will be omitted. An appropriate number of the liquid seal mounts 62 are positioned by fixing the lower end surface thereof to a predetermined position on the upper end surface of the floor beam 61 with an adhesive or an adhesive.
[0105]
The floor panel 63 is formed by arranging a plurality of panel members formed in a rectangular plate shape from lightweight foamed concrete (ALC) such that their long-side end surfaces are in contact with each other and connected by a connecting member 64. It is made into a panel by assembling it. A counterbore 63a extending along the end face is provided in the entire area of the corner where the short side end face and the back face of each panel material intersect. The counterbore portion 63a has a bottom surface that extends slightly in parallel with the back surface and has a width slightly larger than the width of the liquid seal mount 62, and is formed at substantially the same depth as the height of the liquid seal mount 62. The plurality of panel members arranged in parallel are connected by an L-shaped steel as a connecting member 64 fixed to the bottom surface of each counterbore portion 63 and the short side end surface of each panel member with an adhesive or the like. It is assembled.
[0106]
The floor panel 63 thus configured is disposed on the floor beam 61 so as to be supported via a connecting member 64 by a liquid seal mount 62 installed at a predetermined position on the floor beam 61 at a distance. Is established. In this case, the liquid seal mount 62 supports the connecting member 64 of the floor panel 63 in a state where most of the liquid seal mount 62 is accommodated in the counterbore 63 a of the floor panel 63. As a result, the arrangement position of the floor panel 63 is lowered closer to the floor beam 61 by an amount corresponding to the liquid seal mount 62 being accommodated in the counterbore 63a. On the floor panel 63 provided in this manner, an intermediate floor material, a surface finishing material, and the like (not shown) are appropriately provided.
[0107]
The floor structure of the present embodiment configured as described above has a restraint plate 62a between a floor beam 61 and a floor panel 63 and is formed into a flat thin liquid seal similarly to the second embodiment. Since the mount 62 is provided, the same operation and effect as those of the second embodiment can be obtained.
[0108]
In particular, the floor panel 63 in the floor structure of the present embodiment includes a connecting member 64 in which a plurality of panel members having counterbore portions 63a at corners on the side mounted on the floor beams 61 are attached to the counterbore portions 63a. And is supported by a liquid seal mount 62 installed on the floor beam 61 and at least partially accommodated in the counterbore 63a via the connecting member 64. I have. Thereby, the arrangement position of the floor panel 63 can be lowered by the amount that the liquid seal mount 62 is stored in the counterbore portion 63a. Therefore, it is possible to suppress an increase in the arrangement position of the floor panel 63 that is configured by connecting a plurality of panel members by the connecting member 64 and that is arranged to be supported by the liquid seal mount 62. Thus, it is possible to prevent the living room space above the floor panel 63 from becoming small, and to advantageously secure a larger living room space.
[0109]
In the present embodiment, the floor panel 63 formed by connecting a plurality of panel members with the connecting member 64 is supported by the liquid seal mount 62 via the connecting member 64. In comparison with the case (1), the number of the liquid ring mounts 62 can be significantly reduced.
[0110]
In the present embodiment, an adhesive is employed as a means for fixing the plurality of panel members constituting the floor panel 63 and the connecting member 64. However, as other fixing means, for example, a fastening member such as a bolt and a nut Can be adopted.
[0111]
[Modification 5]
FIG. 16 is a cross-sectional view of a floor structure according to the present modification.
[0112]
This modification is an example in which the floor structure of the seventh embodiment uses a floor beam 61 having a narrow upper end surface on which the liquid seal mount 62 is installed. That is, as shown in FIG. 16, the floor beam 61 of this modification includes two floor panels 63, 63 formed by connecting a plurality of panel members with connecting members 64, 64. When placed on the floor beam 61 such that the end surfaces 64 and 64 face each other, the connecting members 64 and 64 attached to the counterbore portions 63a and 63a of the floor panels 63 and 63 are supported. Does not have enough space (width) to install the two liquid ring mounts 62, 62. Therefore, brackets 61a, 61a having installation portions 61b, 61b extending to both sides from the upper end surface of the floor beam 61 are provided on both sides of the portion where the liquid seal mounts 62, 62 of the floor beam 61 are to be installed. Installed. As a result, the upper end surface of the portion of the floor beam 61 where the liquid seal mounts 62, 62 are to be installed is extended in both lateral directions.
[0113]
The liquid seal mounts 62, 62 in this modification are positioned by fixing the lower end surfaces thereof to the upper end surface of the floor beam 61 and the installation portions 61b, 61b with an adhesive or the like. The upper end surface is fixed to a connecting member 64 attached to the bottom surface of the counterbore portions 63a, 63a with an adhesive or the like.
[0114]
As described above, in the floor beam 61 of the present modification, the brackets 61a, 61a are attached to the portions where the liquid seal mounts 62, 62 are to be installed, so that the installation space for the liquid seal mounts 62, 62 is secured. Therefore, it is possible to adopt a material having a narrow upper end surface, and thus the weight of the floor beam 61 can be reduced.
[0115]
[Modification 6]
FIG. 17 is a cross-sectional view of the floor structure according to the present embodiment.
[0116]
In this modification, as shown in FIG. 17, two floor panels 63, 63 formed by connecting a plurality of panel members with a connecting member 65 face their end faces on the connecting member 65 side. In the case where the floor panel 61 is placed on the floor beam 61 as described above, the connecting member 65 attached to the two counterbore portions 63a, 63a adjacent to the two floor panels 63, 63 is attached to one liquid seal mount. It is designed to be supported by 62.
[0117]
That is, in this modification, a T-shaped steel is used as the connecting member 65, and the two floor panels 63, 63 are fixed to the bottom and end surfaces of both the counterbore portions 63a, 63a by an adhesive. They are integrally connected by a mold steel. In the two floor panels 63, 63, the portion of the connecting member 65 fixed to the bottom surfaces of both the counterbore portions 63 a, 63 a is formed on the entire surface of the constraint plate 62 a provided at the upper end of the liquid seal mount 62. It is arranged to be supported. Therefore, the width of the bottom surface of the counterbore portions 63a, 63a provided on the floor panels 63, 63 is formed to be approximately half the size of the seventh embodiment. Further, the floor beam 61 has a narrow width whose upper end surface is sufficient to mount only one liquid ring mount 62.
[0118]
In the floor structure configured as described above, the two floor panels 63, 63 placed on the floor beam 61 such that the end surfaces on the side of the connecting member 65 face each other are connected to one liquid seal mount 62. In this case, the number of liquid ring mounts 62 can be further reduced as compared with the case of the seventh embodiment or the fifth modification. Further, since the floor beam 61 having a narrow upper end surface can be used as it is, the floor beam 61 can be reduced in weight.
[Brief description of the drawings]
FIG. 1 is a sectional view of a floor structure according to a first embodiment of the present invention.
FIG. 2 is a sectional view of the liquid ring mount used in the first embodiment of the present invention, which is a sectional view taken along line II-II of FIG.
FIG. 3 is a plan view of a liquid ring mount used in the first embodiment of the present invention.
FIG. 4 is a sectional view of a floor structure according to a first modification of the present invention.
FIG. 5 is a sectional view of a floor structure according to a second embodiment of the present invention.
FIG. 6 is a sectional view of a floor structure according to a second modification of the present invention.
FIG. 7 is a sectional view of a floor structure according to a third embodiment of the present invention.
8 is a cross-sectional view of a floor structure according to a fourth embodiment of the present invention, which is a cross-sectional view taken along a portion corresponding to line VII-VII in FIG.
FIG. 9 is a perspective view of a floor beam in a floor structure according to Embodiment 4 of the present invention.
FIG. 10 is an explanatory diagram illustrating an arrangement state of a support member arranged on a back surface of a floor panel in a floor structure according to a fourth embodiment of the present invention.
FIG. 11 is a sectional view of a floor structure according to a fifth embodiment of the present invention.
FIG. 12 is a perspective view of a floor structure according to a sixth embodiment of the present invention.
FIG. 13 is a sectional view of a floor structure according to a third modification of the present invention.
FIG. 14 is a sectional view of a floor structure according to a fourth modification of the present invention.
FIG. 15 is a perspective view of a floor structure according to Embodiment 7 of the present invention.
FIG. 16 is a sectional view of a floor structure according to a fifth modification of the present invention.
FIG. 17 is a sectional view of a floor structure according to Modification 6 of the present invention.
[Explanation of symbols]
1, 11, 21, 31, 41, 51, 61 ... floor beams
1a, 11a, 21b, 31g, 43c: circular recess
1b, 11b, 21c, 31h, 434d: Frame member
21a, 31f, 51a, 61a ... bracket
31a-31d ... Outer beam 31e ... Inner beam
51b, 61b ... installation part
2, 12, 22, 32, 42, 52, 62 ... liquid ring mount
12a, 32a, 52a, 62a ... restraint plates 12b, 32b ... bolts
12c, 32c: Nut 2a: Partition member 2b: Elastic support member
2c: Main liquid chamber 2d: Support member 2e: Diaphragm
2f ... Sub liquid chamber 2g ... Inlet 2h ... Outlet
2i: Orifice passage L: Liquid
3, 13, 23, 33, 53, 63: floor panel 23a: casing
23b: Filler 33a: Base panel material
33b, 33c: Intermediate floor material 33d: Surface finishing material
43a: first floor panel 43b: second floor panel
14, 24, 35: C-type channel steel 34: Square pipe
14a, 34a: fastening member 53a, 63a: counterbore
64, 65 ... connecting members

Claims (12)

In a floor structure in which floor panels are arranged on floor beams of a building structure,
A floor structure, wherein a flat liquid ring mount is installed between the floor beam and the floor panel, and the floor panel is disposed so as to be supported by the liquid ring mount. 2. The floor structure according to claim 1, wherein the liquid ring mount is formed in a flat shape having a ratio of height to width in a range of 1: 2 to 1:10. 3. The liquid ring mount is formed between a plate-shaped partition member and a cylindrical shape having one end closed, and is disposed so that an end surface on an opening side faces one surface of the partition member, and is mainly disposed between the partition member and the partition member. An elastic support member forming a liquid chamber, a cylindrical support member arranged such that one end surface thereof faces the other surface of the partition member, and an outer peripheral edge held by an inner peripheral portion of the support member. A diaphragm that forms a sub liquid chamber between the partition member and the partition member; and an orifice passage provided between the partition member and the support member to communicate the main liquid chamber and the sub liquid chamber. The floor structure according to claim 1, wherein the floor structure is provided. The floor structure according to claim 1, wherein a restraining plate is attached to an end surface of the liquid ring mount on a side supporting the floor panel, so as to cover an entire area of the end surface. 5. The floor structure according to claim 4, wherein the restraint plate has a fastening member for fastening the restraint plate to the floor panel disposed on the restraint plate or a support member supporting the floor panel. 6. . The floor structure according to claim 1, wherein the floor beam has a bracket on a side surface of the floor beam, on which the liquid ring mount is installed. The floor structure according to any one of claims 1 to 6, wherein the floor panel is formed of a composite plate including a casing formed of a metal plate and a filler filled in an internal space of the casing. . The floor structure according to claim 1, wherein a support member for supporting the floor panel is attached to a back surface of the floor panel. 9. The floor structure according to claim 8, wherein the support member is provided separately from a plurality of divided portions on the back surface of the floor panel. The floor panel is configured in a double structure including a first floor panel supported and disposed on the floor beam and a second floor panel disposed at a distance from the first floor panel, The floor structure according to claim 1, wherein the liquid ring mount is provided between the first floor panel and the second floor panel. The floor panel has a counterbore on the back surface of a portion corresponding to the liquid seal mount installed on the floor beam, and is supported by the liquid seal mount partially housed in the counterbore. The floor structure according to claim 1, wherein the floor structure is provided. In the floor panel, a plurality of panel members having a counterbore portion extending along the end surface are attached to the counterbore portion over the entire area of a corner where an end surface on a side placed on the floor beam and a back surface intersect. And is supported by the liquid seal mount installed on the floor beam and at least partially housed in the counterbore portion via the connecting member. The floor structure according to claim 1, wherein:

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