JP3875626B2 - Floor structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor structure of a building structure such as a general house.
[0002]
[Prior art]
In general homes and the like, vibration is generated when an impact is caused by jumping on the floor or descending from a platform, which causes problems such as unpleasant noise and unpleasant vibration. Furthermore, in detached houses and condominiums, vibrations and impact sounds generated in the floors of living rooms and corridors are directly propagated downstairs, which may be a serious noise for downstairs residents.
[0003]
Therefore, various measures have been taken in the past in order to suppress the vibration generated on the floor of a general house. For example, as disclosed in Patent Document 1 and the like, an impact or the like is applied to the floor beam of a building structure. There is known a floor structure in which a floor panel is mounted and fixed via a liquid ring mount that absorbs vibrations of the floor. In this case, the floor panel is placed and fixed on the liquid seal mount fixed to the upper surface of the floor beam, or the peripheral end of the floor panel is attached to the bracket attached to the side surface portion of the floor beam via the liquid seal 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 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 plurality of liquid chambers in which liquid is sealed and communicated 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 seal mount, the rubber elastic body is compressed and deformed in the vertical direction, and the impact is alleviated, and the orifice passage flows 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]
Japanese Patent Laid-Open No. 11-13193
[0006]
[Problems to be solved by the invention]
By the way, the above-mentioned conventional liquid ring mount has a structural reason such that two liquid chambers usually provided inside the 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 seal mount is installed between the upper surface of the floor beam and the floor panel, the position of the floor panel is increased by the height of the liquid seal mount, and the living room on the floor panel is increased. The problem arises that the space becomes narrower. In addition, when such a liquid seal mount is installed between the bracket provided on the side surface of the floor beam and the floor panel, the ceiling space formed below the floor panel is the liquid seal 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 circumstances, and it is possible to improve the sound insulation, and to solve the problem of providing a floor structure capable of securing a larger living space and ceiling space. To do.
[0008]
[Means for solving the problems, actions and effects of the invention]
  The floor structure according to the first aspect of the present invention that solves the above problem is a floor structure in which a floor panel is disposed on a floor beam of a building structure.Elasticity that forms a main liquid chamber between the plate-shaped partition member and the partition member that is formed in a cylindrical shape that is closed at one end and whose end surface on the opening side faces one surface of the partition member A support member, a cylindrical support member disposed so that one end surface thereof faces the other surface of the partition member, and an outer peripheral edge portion of the support member held by the inner peripheral portion of the support member. A diaphragm that forms a sub liquid chamber therebetween, and an orifice passage that is provided between the partition member and the support member and communicates the main liquid chamber and the sub liquid chamber.Flat liquid seal mountBetween the floor beam and the floor panelIt is installed and the means that the floor panel is disposed so as to be supported by the liquid seal mount is adopted.
[0009]
Since the liquid seal mount is installed between the floor beam and the floor panel, the floor structure of the present invention has a structure that can effectively reduce the impact sound and vibration generated in the floor panel by the liquid seal mount. . And since the liquid seal mount is formed in a flat shape, the placement position of the floor panel becomes higher, the living space on the floor panel is greatly reduced, and the space on the ceiling under the floor panel is greatly reduced. There is nothing to do. Therefore, it is advantageous in securing a sufficiently large living space and ceiling space.
[0010]
  Further, the liquid seal mount in the floor structure of the present invention is formed in a plate-like partition member and a cylindrical shape whose one end is closed, and is arranged so that an end surface on the opening side faces one surface of the partition member. An elastic support member that forms a main liquid chamber with the partition member; a cylindrical support member that is disposed so that one end surface thereof faces the other surface of the partition member; and an inner peripheral portion of the support member A diaphragm that holds an outer peripheral edge thereof to form a sub liquid chamber between the partition member and the main liquid chamber and the sub liquid chamber that are provided between the partition member and the support member. Since the orifice passage provided between the partition member and the support member can be provided outside the secondary liquid chamber, the height of the orifice passage can be reduced. A thin liquid ring mount can be realized.
[0011]
  Therefore, according to the floor structure of the present invention, since the flat liquid seal mount configured as described above is installed between the floor beam and the floor panel, the sound insulation can be improved. Therefore, a larger living space and a ceiling space can be advantageously secured.
[0012]
  A floor structure according to a second aspect of the present invention is the floor structure according to the first aspect, wherein the liquid-sealed mount is formed in a flat shape having a height to width ratio in the range of 1: 2 to 1:10. It adopts the means of being.
[0013]
  According to this means, since the liquid ring mount becomes thin, the installation space for the liquid ring mount can be surely reduced. Thereby, the raise of the arrangement position of a floor panel can be suppressed more reliably, and the large reduction of the ceiling space under a floor panel can be suppressed more reliably.
[0014]
  The height of the liquid seal 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 horizontal width of the liquid seal mount is the most in the direction perpendicular to the height direction. The width of a wide part.
[0016]
  ClaimTo 3The floor structure according to the invention described in claim1 or 2In the described invention, means is adopted in which a constraining plate arranged so as to cover the entire area of the end surface is attached to the end surface of the liquid seal mount on the side supporting the floor panel.
[0017]
According to this means, even when vibration is partially input to a part of the restraint plate from a floor panel or the like placed on the restraint plate, the vibration supports the floor panel of the liquid seal mount via the restraint plate. It can be transmitted to the entire side end face. Thereby, since the volume of the liquid chamber of the liquid ring mount can be changed efficiently to promote the flow of the liquid, it is possible to obtain a favorable vibration reduction effect by the liquid ring mount.
[0018]
In addition, since a restraint board will exhibit said function if it has rigidity, it can employ | adopt hard resin or metals, such as an iron type, as the material.
[0019]
  Claim4The floor structure according to the invention described in claimTo 3In the described invention, the restraint plate employs means that includes a fastening member that fastens the restraint plate and the floor panel disposed on the restraint plate or a support member that supports the floor panel. .
[0020]
According to this means, since the floor panel disposed on the liquid seal mount is fixed to the restraint plate directly or indirectly via the support member by the fastening member, the floor panel is displaced with respect to the liquid seal mount. It can arrange | position in a predetermined position, without doing.
[0021]
In addition, when the edge part of a some floor panel is installed on one restraint board (one liquid seal mount), several corresponding to the number of floor panels with respect to the one restraint board. A fastening member can be provided. In this way, if a plurality of floor panels are fastened to a single restraint plate by a 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 displaced as a unit, and the vibration can be transmitted substantially uniformly to the entire restraining plate.
[0022]
  ClaimTo 5The floor structure according to the invention described in claimIn any one of 1-4In the described invention, the floor beam employs a means having a bracket on the side surface portion of which the liquid seal mount is installed.
[0023]
According to this means, since the bracket on which the liquid seal mount is installed is provided on the side surface portion of the floor beam, the floor panel placed on the liquid seal mount is near the upper surface of the floor beam on the side surface of the floor beam. It becomes the floor structure which can be arrange | positioned so that it may be located in. In this case, since a thin liquid-sealed mount formed in a flat shape is used, the mounting position of the bracket can be brought close to the floor panel, so that a larger ceiling space can be secured.
[0024]
  Claim6The floor structure according to the invention described in claimIn any one of 1-5In the described invention, the floor panel employs a means that is formed of a composite plate comprising a casing formed of a metal plate and a filler filled in the internal space of the casing.
[0025]
According to this means, a floor panel excellent in strength and sound insulation can be employed. In addition, as a filler, it can select suitably from resin, such as urethane, various concrete, an inorganic substance, etc., for example.
[0026]
  Claim7The floor structure according to the invention described in claimIn any one of 1-6In the described invention, means is adopted in which a support member for supporting the floor panel is attached to the back surface of the floor panel.
[0027]
This means is advantageous when a floor panel is configured by combining a plurality of small panels, or when a panel material having relatively low rigidity is used as the floor panel. In addition, as a supporting member, the surface material and bar which consist of metals, such as iron-type, and a wood-type material, or what combined these, etc. can be employ | adopted suitably.
[0028]
  Claim8The floor structure according to the invention described in claim7In the described invention, the support member employs means in which the support member is disposed in a state of being separated from each other on a portion of the rear surface of the floor panel which is divided.
[0029]
According to this means, vibrations and impact sounds that are partially input to the divided portion of the floor panel are not propagated to other divided portions via the support member. Therefore, the energy is localized in the divided part of the floor panel to which vibration and impact sound are input, and the vibration and impact sound do not spread to other divided parts, so that the sound insulation effect can be improved in total. . In addition, the division | segmentation number of a floor panel can be suitably selected with the magnitude | size and shape of a floor panel.
[0030]
  Claim9The floor structure according to the invention described in claimIn any one of 1-8In the described invention, the floor panel includes a first floor panel supported by the floor beam and a second floor panel disposed at a distance from the first floor panel. The liquid seal mount adopts a means that it is installed between the first floor panel and the second floor panel.
[0031]
According to this means, since the floor panel is configured in a double structure, it is possible to realize a floor structure that is more excellent in sound insulation. In addition, a 1st floor panel and a 2nd floor panel can be selected and employ | adopted from various things, such as a wood type and a concrete type, for example according to the building structure in which they are arrange | positioned.
[0032]
  ClaimTo 10The floor structure according to the invention described in claimIn any one of 1-6In the invention described above, the floor panel has a counterbore portion on the back surface of a portion corresponding to the liquid seal mount installed on the floor beam, and the liquid seal partially accommodated in the counterbore portion. The means of being supported by the mount is adopted.
[0033]
According to this means, since the part of the liquid seal mount that supports the floor panel is housed in the counterbore part, the position of the floor panel arrangement is as much as the liquid seal mount is housed in the counterbore part. Can be lowered. Therefore, it is possible to suppress an increase in the arrangement position of the floor panel arranged to be supported by the liquid seal mount.
[0034]
  Claim11The floor structure according to the invention described in claimIn any one of 1-6In the described invention, the floor panel includes a plurality of panel members each having a counterbore extending along the end surface over the entire corner where the end surface on the side placed on the floor beam and the back surface intersect. It is configured by being connected by a connecting member attached to a counterbore, and is supported on the connecting member by the liquid seal mount that is installed on the floor beam and at least partially accommodated in the counterbore. It adopts the means of being.
[0035]
According to this means, since at least a part of the liquid seal mount that supports the floor panel via the connecting member is housed in the counterbore part, the liquid seal mount is stored in the counterbore part. The floor panel placement position can be lowered. Therefore, 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 a connecting member and supported by the liquid seal mount. In addition, L-shaped steel, T-shaped steel, etc. can be employ | adopted for the connection member which connects each panel material, for example.
[0036]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0037]
[Embodiment 1]
1 is a cross-sectional view of a 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 the line II-II in FIG. FIG. 3 is a plan view of the liquid ring mount.
[0038]
As shown in FIG. 1, the floor structure of the present embodiment has a flat liquid-sealed mount 2 installed between a floor beam 1 and a floor panel 3 disposed on the floor beam 1. Is arranged to be supported by the liquid seal mount 2.
[0039]
The floor beam 1 is composed of a building structure frame, and is formed in a rectangular shape from wood. A circular recess 1a having a relatively shallow depth is provided in a predetermined portion where the liquid seal mount 2 on the upper surface of the floor beam 1 is installed. The circular recess 1a is formed by removing a part of the floor beam 1 and denting its upper surface.
[0040]
As shown in FIGS. 2 and 3, the liquid seal mount 2 is formed in a plate-like partition member 2 a and a cylindrical shape with one end closed so that the end surface on the opening side faces one surface of the partition member 2 a. An elastic support member 2b which is disposed to form a main liquid chamber 2c between the partition member 2a, a cylindrical support member 2d which is disposed so that one end surface thereof faces the other surface of the partition member 2a, and a support A diaphragm 2e that holds the outer peripheral edge of the member 2d on the inner periphery thereof to form the secondary liquid chamber 2f between the partition member 2a and the partition member 2a and the support member 2d outside the secondary liquid chamber 2f. And an orifice passage 2i that communicates the main liquid chamber 2c and the sub liquid chamber 2f via the introduction port 2g and the outlet port 2h. The main liquid chamber 2c and the sub liquid chamber 2f are not compressed. Liquid L is enclosed.
[0041]
The liquid-sealed 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 with a ratio of height to width of 1: 4.4. Has been. The liquid seal mount 2 is positioned by fitting and holding the support member 2 d in a circular recess 1 a provided on the floor beam 1, and an appropriate number of liquid 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 seal mount 2 such that the back surface thereof is in contact with the entire upper end surface of the elastic support member 22 of the liquid seal mount 2. As a result, 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. On the floor panel 3, an intermediate floor material or a surface finishing material (not shown) is appropriately disposed.
[0043]
In the floor structure of the present embodiment configured as described above, when an impact is applied to the floor panel 3 and vibration is generated, the vibration is efficiently absorbed by the liquid seal mount 2 that supports the floor panel 3. 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 is not significantly reduced.
[0044]
Therefore, according to the floor structure of the present embodiment, since the thin liquid-sealed mount 2 formed in a flat shape is installed between the floor beam 1 and the floor panel 3, the sound insulation can be improved. In addition, it is possible to avoid a significant rise in the arrangement position of the floor panel 3 and 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 with 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 secondary liquid chamber 2f, a thin one is reliably realized.
[0046]
[Modification 1]
FIG. 4 is a cross-sectional view of a floor structure according to this modification.
[0047]
In the first embodiment, the circular concave portion 1a provided for positioning the liquid seal mount 2 is formed by removing a part of the floor beam 1 and denting its upper surface. As shown in FIG. 4, the ring-shaped frame member 1b is fixed to the upper surface of the floor beam 1, thereby forming a circular recess 1a inside the frame member 1b.
[0048]
The frame member 1b does not necessarily have to be formed so as to surround the entire region in the circumferential direction. You may make it provide.
[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-sealed mount 12 installed on the floor beam 11, and a C-shaped channel as a support member attached to the back surface thereof. It is comprised from the floor panels 13 and 13 arrange | positioned on the liquid seal mount 12 via the steel 14 and 14. FIG.
[0051]
The floor beam 11 is composed 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 where the liquid seal mount 12 on the upper surface of the floor beam 11 is installed, so that a circular recess 11a having a relatively shallow depth is provided inside thereof. Yes.
[0052]
The liquid seal mount 12 is obtained by adding a restraining plate 12a to the liquid seal mount 2 formed in the same manner as the liquid seal mount 2 of the first embodiment. The constraining plate 12a is formed in a circular shape by an iron-based metal plate, and is fixed by an adhesive so as to contact the entire end surface of the liquid seal mount 12 on the side that supports the floor panel 13. In addition, since the structure of the liquid seal mount 12 main body is the same as that of Embodiment 1, detailed description is abbreviate | omitted. The liquid seal mount 12 is positioned by fitting and holding a lower end portion of a circular recess 11 a provided on the upper surface of the floor beam 11, and an appropriate number of liquid 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 rear end portions of a plurality of concrete panels arranged in parallel adjacent to each other. Thus, a panel is formed, which is formed into a rectangle having a predetermined size. A plurality of floor panels 13, 13 are used in addition to the two shown in FIG. The floor panels 13 and 13 are arranged such that the four corner portions thereof are positioned on the restraint plate 12a of the liquid seal mount 12 installed on the floor beam 11, and the restraint plate 12a and the C-type channel steels 14 and 14 are disposed. Are adhered by an adhesive or the like.
[0054]
As shown in FIG. 5, at the place where the two floor panels 13 and 13 are disposed adjacent to each other, the end faces of the two adjacent floor panels 13 and 13 on the side where the C-type channel steels 14 and 14 are attached are provided. Are opposed to each other on the floor beam 11, and two adjacent C-type channel steels 14 and 14 are placed on one restraint plate 12 a of the liquid seal mount 12 installed on the floor beam 11. It is arranged in the state. That is, each corner portion of two adjacent floor panels 13 and 13 is supported by one liquid seal mount 12 via one restraint plate 12a. In addition, on the floor panels 13 and 13 thus arranged, an intermediate floor material, a surface finishing material, and the like (not shown) are appropriately arranged.
[0055]
In the floor structure of the present embodiment configured as described above, a thin liquid-sealed mount 12 formed in a flat shape is installed between the floor beam 11 and the floor panel 13 as in the first embodiment. Therefore, the same operation and effect as in the case of the first embodiment are 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 seal mount 12 on the side that supports 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 restraining plate 12a. Thereby, since the volume of the liquid chamber of the liquid seal mount 12 can be changed efficiently and the flow of the liquid can be promoted, a good vibration reduction effect by the liquid seal mount 12 can be obtained.
[0057]
In the present embodiment, both corners of two floor panels 13 and 13 disposed adjacent to each other are supported by one liquid seal mount 12, but each floor panel 13, The liquid ring mount 12 may be installed so that each of the 13 corner portions is supported by one liquid ring mount 12. In this case, when the width of the C-type channel steel 14 is narrower than the end face of the liquid seal mount 12 on the side supporting the floor panels 13 and 13, the restraint plate 12a attached to the liquid seal mount 12 as described above. Works effectively.
[0058]
[Modification 2]
FIG. 6 is a cross-sectional view of a floor structure according to this 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 with an adhesive or the like to fix them together. Then, the restraint plate 12a provided with a fastening member that fastens the two C-type channel steels 14 and 14 and one restraint plate 12a is employed, thereby fixing both. That is, as shown in FIG. 6, the restraint plate 12a includes two bolts 12b and 12b projecting from the upper surface of the restraint plate 12a, and nuts 12c that are screwed onto the tip ends of the bolts 12b and 12b. And a fastening member made of 12c.
[0060]
In the case of this modification, the two floor panels 13 and 13 are integrated by fastening the two C-type channel steels 14 and 14 to one restraint plate 12a with a fastening member. Even when vibration is input to only one floor panel 13, both floor panels 13, 13 are displaced together, so that the vibration is transmitted substantially uniformly to the entire restraining plate 12a. it can.
[0061]
In the case where a support member such as 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 this embodiment includes a floor beam 21 having a bracket 21a, a flat liquid seal mount 22 installed on the bracket 21a, and a C as a support member attached to the back surface thereof. It is composed of a floor panel 23 disposed on the liquid seal mount 22 via a mold channel steel 24.
[0064]
The floor beam 21 is composed 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 part of the side surface of the floor beam 21 that is slightly downward from the center so as to extend inward in the horizontal direction. Since the 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 on the inside thereof. An appropriate number of the brackets 21a are attached to predetermined locations at an appropriate distance on the inner peripheral side of the floor beam 21.
[0065]
The liquid seal mount 22 is the same as the liquid seal mount 2 of the first embodiment. Therefore, detailed description of the structure and the like is omitted. The liquid seal mount 22 is positioned and installed on the mounting portion of the bracket 21 a provided on the floor beam 21 by fitting and holding the lower end portion thereof to the circular recess 21 b.
[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 C-type channel steel 24 in which a plurality of floor panels 23 arranged adjacent to each other are fixed to the end of the back surface. 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 seal mount 22 via the C-type channel steel 24 on the side surface side of the floor beam 21, and the upper surface thereof is disposed in a state substantially the same as the upper surface of the floor beam 21. Has been. On the floor panel 23, an intermediate floor material and a surface finishing material (not shown) are appropriately disposed.
[0067]
In the floor structure of the present embodiment configured as described above, the liquid seal mount 22 installed between the bracket 21a provided on the side surface portion of the floor beam 21 and the floor panel 23 is formed in a flat and thin shape. Therefore, since the mounting position of the bracket 21a can be brought close to the floor panel 23, it is possible to avoid a significant decrease in the ceiling space below the floor panel 23. Therefore, the sound insulation can be improved, and a larger ceiling space can be advantageously ensured.
[0068]
Moreover, 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 foamed concrete filled 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, and is a cross-sectional view cut along a portion corresponding to the line VIII-VIII in FIG. 10, and FIG. 9 is a perspective view of the floor beam in the floor structure, FIG. 10 is an explanatory diagram 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,..., Flat liquid-sealed mounts 32 installed on the brackets 31f,. And a floor panel 33 disposed on the liquid seal mount 32 via a support member made of a C-type channel steel 35.
[0071]
As shown in FIG. 9, the floor beam 31 is composed of a frame of a building structure. As shown in FIG. 9, the four outer beams 31a to 31d forming each side of the rectangle and the two outer beams 31a and 31c facing each other. It is composed of one inner beam 31e whose both ends are connected to the central portion of the inner beam. The floor beam 31 is formed of H-shaped steel. Brackets 31f having a mounting portion on which liquid seal mounts 32 are installed are fixed to predetermined 16 locations on the inner surface of the floor beam 31 so as to extend inward in the horizontal direction. . A ring-shaped frame member 31h,... Is attached to the mounting portion of the bracket 31f, so that a circular recess 31g,.
[0072]
As shown in FIG. 8, the liquid seal mounts 32,... Are the same as the liquid seal mount 12 of the second embodiment, and have constraining plates 32 a,. However, the restraining plates 32a,... Are formed from bolts 32b,... Projecting from the center of one surface of the restraining plates 32a,... And nuts 32c,. It differs from the thing of Embodiment 2 by the point which has the fastening member which becomes. This fastening member fastens and fixes the C-type channel steel 35, ... installed on the restraining plates 32a, ... and the restraining plates 32a, .... Since the structure of the liquid seal mount 32,... Is the same as that of the second embodiment, detailed description thereof is omitted. The liquid seal mount 32 is positioned and installed on the mounting portion of the bracket 31f provided on the floor beam 31 by fitting and holding the lower end of the liquid seal mount 32 on the circular recess 31g.
[0073]
The floor panel 33 is configured by laminating a base panel material 33a, intermediate floor materials 33b and 33c, and a surface finishing material 33d. One 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 steel 35,. As shown in FIG. 10, the support members are disposed in a state of being separated from 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 are fastened with fastening members 34a made up of bolts and nuts and assembled in a cross-girder manner in each of the parts A to D. The four sets of support members are arranged separately and independently. Accordingly, the A and B square pipes 34 extending in the same direction, and the C and D square pipes 34 are not connected. Also, the A-type and C-type channel steels 35 of the C portion extending in the same direction, and the C-type channel steel 35 of the B and D portions are not connected.
[0075]
In this floor panel 33, four corner portions (M1 to M16 in FIG. 10) of each of the A to D portions are supported by liquid seal mounts 32 installed on brackets 31f of the floor beam 31. Arranged. That is, both ends of the C-type channel steel 35,... Positioned at each corner are fastened and fixed to the restraining plates 32a of the liquid seal mounts 32 by a fastening member comprising bolts 32b,. It has been arranged in the state. Accordingly, 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 includes a thin liquid-sealed mount 32 formed in a flat shape between the bracket 31f provided on the side surface of the floor beam 31 and the floor panel 33, ... are installed, so that the sound insulation can be improved, and a larger ceiling space can be advantageously ensured. Thus, the same operations and effects as in the case of Embodiment 3 are obtained.
[0077]
In particular, in the floor structure of the present embodiment, the support member composed of the square pipes 34 attached to the back surface of the floor panel 33, and the C-type channel steel 35,. The 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 member because they are arranged in a state separated from the D portions. There is nothing. Therefore, the energy is localized in the divided part of the floor panel 33 to which vibration and impact sound are input, and the vibration and impact sound do not spread to other divided parts, so that the sound insulation effect can be improved in total. it can.
[0078]
[Embodiment 5]
FIG. 11 is a 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. An appropriate number of liquid seal mounts 42, 42 are installed between the first floor panel 43a and the second floor panel 43b.
[0080]
The floor beam 41 is composed of a building structure and is formed in a rectangular shape by H-shaped steel.
[0081]
The first floor panel 43 a is a first floor panel disposed so that the peripheral end portion thereof is placed on the upper surface of the floor beam 41. The first floor panel 43 a is formed in a rectangular shape that is substantially the same size as the floor beam 41. A ring-shaped frame member 43d is attached to a predetermined portion where the liquid seal mounts 42, 42 on the upper surface of the first floor panel 43a are installed, so that a circular recess 43c having a relatively shallow depth is formed inside thereof. Is provided.
[0082]
The liquid seal mounts 42 and 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 42 and 42 are installed at predetermined positions on the first floor panel 43a. . The liquid seal mounts 42 and 42 are the same as the liquid seal mount 2 of the first embodiment. 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 43 b is placed on the liquid seal mounts 42, 42 so that the back surface thereof is in contact with the entire upper end surface of the liquid seal mounts 42, 42. As a result, the second floor panel 43b is arranged in a state where it is supported by the liquid seal mounts 42, 42 at a position separated from the first floor panel 43a by the height (thickness) of the liquid seal mounts 42, 42. And a double floor structure is formed together with the first floor panel 43a. In addition, an intermediate floor material, a surface finishing material, and the like (not shown) are appropriately disposed on the second floor panel 43b.
[0084]
Also in the double floor structure of the present embodiment configured as described above, the first floor panel 43a supported by the floor beam 41 and the first floor panel 43a are arranged at a distance from each other. Since the thin liquid-sealed mounts 42, 42 formed in a flat shape are installed between the second floor panel 43b and the second floor panel 43b, the sound insulation can be improved and the arrangement of the second floor panel 43b By avoiding a significant increase in position, it is possible to advantageously secure a larger living space, and the same operations and effects as in the case of the above embodiment are achieved.
[0085]
In addition, although the 2nd floor panel 43b in this embodiment is comprised combining the wood type panel, you may comprise other types, such as a concrete type 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 in a floor beam 51, a plurality of flat liquid seal mounts 52 and 52 installed on the floor beam 51, and predetermined portions on the back surface thereof. It has a counterbore part 53a, 53a, and a floor panel 53 disposed on the floor beam 51 so that the counterbore part 53a, 53a is supported by the liquid seal mounts 52, 52.
[0088]
The floor beam 51 is composed of a building structure and is rectangularly formed of H-shaped steel.
[0089]
The liquid seal mounts 52 and 52 are formed in the same manner as the liquid seal mount 12 of the second embodiment, and have a restraining plate 52 a on the upper end surface that supports the floor panel 53. Since the structure of the liquid seal mounts 52 and 52 is the same as that of the first embodiment, detailed description thereof is omitted. The liquid seal mounts 52, 52 are positioned by fixing their lower end surfaces to predetermined positions on the upper end surface of the floor beam 51 with an adhesive, an 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 corners of the floor panel 53 are supported by liquid seal mounts 52 and 52 installed on the floor beam 51. Counterbore portions 53 a and 53 a supported by liquid seal mounts 52 and 52 are provided at the corner portions on the back surface of the floor panel 53. The spot facing portions 53a and 53a have a rectangular bottom surface formed with sides slightly longer than the width dimension of the liquid seal mounts 52 and 52, and have a depth slightly smaller than the height dimension of the liquid seal mounts 52 and 52. Is formed.
[0091]
Therefore, the floor panel 53 is disposed on the floor beam 51 in a state where it is supported by the liquid seal mounts 52 and 52, most of which are housed in the spot facing portions 53a and 53a. Thereby, the arrangement position of the floor panel 53 is lowered as close to the floor beam 51 as the liquid seal mounts 52 and 52 are accommodated in the spot facing portions 53a and 53a. A plurality of floor panels 53 arranged in this way are arranged in parallel so that the end surfaces on the long side are in contact with each other. In addition, on the floor panel 53 thus arranged, an intermediate floor material, a surface finishing material, and the like (not shown) are appropriately arranged.
[0092]
The floor structure of the present embodiment configured as described above has a restraint plate 52a, 52a between the floor beam 51 and the floor panel 53, and is formed in a flat and thin shape, as in the second embodiment. Since the liquid seal mounts 52 and 52 are installed, the same operations and effects as in the case of the second embodiment are obtained.
[0093]
In particular, the floor panel 53 in the floor structure of the present embodiment has counterbore parts 53a and 53a at four corners (parts corresponding to the liquid seal mounts 52 and 52 installed on the floor beam 51). Since the floor panel 53 is provided, the floor panel 53 is disposed on the floor beam 51 in a state of being supported by the liquid seal mounts 52 and 52, most of which are accommodated in the spot facing portions 53 a and 53 a. Therefore, the position of the floor panel 53 can be lowered as much as the liquid seal mounts 52, 52 are accommodated in the spot facing portions 53a, 53a, so that the liquid seal mounts 52, 52 are supported by the liquid seal mounts 52, 52. The rise in the arrangement position of the floor panel 53 provided can be suppressed. Thereby, it can avoid that the room space of the upper side of the floor panel 53 becomes small, and can ensure a larger room space advantageously.
[0094]
[Modification 3]
FIG. 13 is a cross-sectional view of a floor structure according to this modification.
[0095]
This modification is an example in the case of using the floor beam 51 having a narrow lateral width at the upper end surface where 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 so that the two floor panels 53, 53 face each other on the short side. In such a case, there is not enough space (width) to install the two liquid seal mounts 52 and 52 that support the spot facing portions 53a and 53a of the respective floor panels 53 and 53. Therefore, brackets 51a and 51a having installation portions 51b and 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. Thereby, the upper end surface of the site | part in which the liquid seal mounts 52 and 52 of the floor beam 51 should be installed is extended in both lateral directions.
[0096]
The liquid-sealed mounts 52 and 52 in this modification are positioned by fixing the upper end surface of the floor beam 51 and the lower end surface to the installation portions 51b and 51b with an adhesive or the like. The upper end surfaces of the counterbore portions 53a and 53a are fixed to the bottom surfaces of the counterbore portions 53a and 53a with an adhesive or the like.
[0097]
As described above, the floor beam 51 according to the present modification secures the installation space for the liquid seal mounts 52 and 52 by attaching the brackets 51a and 51a to the portions where the liquid seal mounts 52 and 52 are to be installed. For this reason, it is possible to employ a material having a narrow lateral width at the upper end surface, whereby 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 this modification.
[0099]
As shown in FIG. 14, the present modified example is a case where two floor panels 53 and 53 are placed on the floor beam 51 so that the end surfaces on the short side face each other. The two counterbore parts 53a, 53a adjacent to each other of the floor panels 53, 53 are supported by one liquid seal mount 52. In other words, in this case, the two floor panels 53 and 53 have the bottom face of the counterbore parts 53a and 53a provided at the respective corner parts, and the restraint plate 52a provided at the upper end of the liquid seal mounts 52 and 52. It arrange | positions so that it may be supported by the part of about half each. Therefore, the bottom surfaces of the spot facing portions 53a and 53a of the floor panels 53 and 53 are formed to be approximately half the size in the case of the sixth embodiment. Further, the floor beam 51 is narrow so that the width of the upper end surface of the floor beam 51 is sufficient to install only one liquid seal mount 52.
[0100]
In the floor structure configured as described above, the two floor panels 53 and 53 placed on the floor beam 51 so that the end surfaces on the short side face each other face each other with one liquid seal mount 52. Since it supports, the number of installation of the liquid seal mount 52 can be reduced. Moreover, since the floor beam 51 having a narrow lateral 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 at the corner of the floor beam 61, a plurality of flat liquid-sealed mounts 62 installed on the floor beam 61, and the short side of the back surface thereof. The floor panel 63 is provided on the liquid seal mount 62 via a connecting member 64 attached to the counterbore part 63a.
[0103]
The floor beam 61 is assembled in a rectangular shape by H-shaped steel, and is the same as that of the sixth embodiment.
[0104]
The liquid seal mount 62 is formed in the same manner as the liquid seal mount 12 of the second embodiment, and has a restraining plate 62 a on the upper end surface that supports the floor panel 63. The structure of the main body of the liquid seal mount 62 is the same as that of the first embodiment, and detailed description thereof is omitted. The liquid seal mount 62 is positioned by fixing its lower end surface to a predetermined position on the upper end surface of the floor beam 61 with an adhesive, an adhesive, or the like, and an appropriate number thereof is installed.
[0105]
The floor panel 63 is formed by arranging a plurality of panel members formed in a rectangular plate shape by lightweight foamed concrete (ALC) in parallel so that their long side end surfaces are in contact with each other, and connected by a connecting member 64. Are assembled into a panel. Counterbore portions 63a extending along the end surfaces are provided in the entire area of the corner where the end surface on the short side and the back surface of each panel material intersect. This counterbore part 63 a has a bottom surface that is slightly larger than the width dimension of the liquid seal mount 62 and extends in parallel with the back surface, and is formed to have substantially the same depth as the height dimension of the liquid seal mount 62. And the several panel material arrange | positioned in parallel is connected by the L-shaped steel as the connection member 64 fixed to the bottom face of each counterbore part 63 and the short side edge surface of each panel material with the adhesive agent etc. It is assembled.
[0106]
The floor panel 63 configured in this manner is arranged on the floor beam 61 so as to be supported via the connecting member 64 by a liquid seal mount 62 installed at a predetermined position on the floor beam 61. It is installed. In this case, the liquid seal mount 62 supports the connecting member 64 of the floor panel 63 in a state in which most of the liquid seal mount 62 is accommodated in the spot facing portion 63 a of the floor panel 63. Thereby, the arrangement position of the floor panel 63 is lowered as close to the floor beam 61 as the liquid seal mount 62 is accommodated in the counterbore portion 63a. In addition, on the floor panel 63 thus arranged, an intermediate floor material, a surface finishing material, and the like (not shown) are appropriately arranged.
[0107]
As in the second embodiment, the floor structure of the present embodiment configured as described above has a constraining plate 62a between the floor beam 61 and the floor panel 63 and is formed into a flat and thin liquid seal. Since the mount 62 is installed, the same operations and effects as those of the second embodiment are obtained.
[0108]
In particular, the floor panel 63 in the floor structure of the present embodiment has a connecting member 64 in which a plurality of panel members having counterbore portions 63a at corners on the side placed on the floor beam 61 are attached to the counterbore portion 63a. And is arranged in a state of being supported on the connecting member 64 by a liquid seal mount 62 installed on the floor beam 61 and accommodated at least in part in the counterbore portion 63a. Yes. Thereby, the arrangement | positioning position of the floor panel 63 can be made low by the part which the liquid seal mount 62 is accommodated in the spot facing part 63a. Therefore, it is possible to suppress an increase in the arrangement position of the floor panel 63 that is configured by being connected by the connection member 64 and is supported by the liquid seal mount 62. Thereby, it can avoid that the room space of the upper side of the floor panel 63 becomes small, and can ensure a larger room space advantageously.
[0109]
Further, in the present embodiment, the floor panel 63 configured by connecting a plurality of panel members by the connecting member 64 is supported by the liquid seal mount 62 via the connecting member 64, and thus the sixth embodiment. Compared to the case, the number of the liquid seal mounts 62 can be greatly reduced.
[0110]
In this embodiment, an adhesive is used as a fixing means between the plurality of panel members constituting the floor panel 63 and the connecting member 64. However, as another 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 this modification.
[0112]
This modification is an example in the case of using the floor beam 61 in which the lateral width of the upper end surface on which the liquid seal mount 62 is installed is narrow in the floor structure of the seventh embodiment. That is, as shown in FIG. 16, the floor beam 61 of the present modification includes two floor panels 63 and 63 configured by connecting a plurality of panel members by connecting members 64 and 64. 64 and 64 support the connecting members 64 and 64 attached to the counterbore parts 63a and 63a of the floor panels 63 and 63 when placed on the floor beam 61 with the end faces facing each other. The two liquid-sealed mounts 62, 62 do not have enough space (width) to install. Therefore, brackets 61a and 61a having installation portions 61b and 61b extending from the upper end surface of the floor beam 61 to both sides are provided on both sides of the portion where the liquid seal mounts 62 and 62 of the floor beam 61 are to be installed. Installed. Thereby, the upper end surface of the site | part in which the liquid seal mounts 62 and 62 of the floor beam 61 should be installed is extended in both lateral directions.
[0113]
The liquid seal mounts 62 and 62 in this modification are positioned by fixing the upper end surface of the floor beam 61 and the lower end surface to the installation portions 61b and 61b with an adhesive or the like. The upper end surfaces of the connecting members 64 attached to the bottom surfaces of the spot facing parts 63a and 63a are fixed with an adhesive or the like.
[0114]
As described above, the floor beam 61 of the present modification secures the installation space for the liquid seal mounts 62, 62 by attaching the brackets 61a, 61a to the portions where the liquid seal mounts 62, 62 are to be installed. For this reason, it is possible to adopt one having a narrow lateral width at the upper end surface, whereby 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 this embodiment.
[0116]
In this modified example, as shown in FIG. 17, two floor panels 63, 63 configured by connecting a plurality of panel members by connecting members 65 are opposed to each other on the end surfaces on the connecting member 65 side. Thus, when placed on the floor beam 61, the connecting member 65 attached to the two counterbore portions 63a, 63a adjacent to the two floor panels 63, 63 is used as one liquid seal mount. 62 is supported.
[0117]
That is, in this modification, T-shaped steel is employed as the connecting member 65, and the two floor panels 63, 63 are fixed to the bottom surface and the end surface of both counterbore portions 63a, 63a by an adhesive. It is integrally connected by a steel mold. The two floor panels 63 and 63 are such that the portion of the connecting member 65 fixed to the bottom surfaces of both the spot facings 63a and 63a is the entire surface of the restraint plate 62a 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 parts 63a, 63a provided on the floor panels 63, 63 is formed to be approximately half the size in the case of the seventh embodiment. Further, the floor beam 61 is narrow so that the width of the upper end surface of the floor beam 61 is sufficient to install only one liquid seal mount 62.
[0118]
In the floor structure configured as described above, the two floor panels 63 and 63 placed on the floor beam 61 so that the end surfaces on the connecting member 65 side face each other are combined with one liquid seal mount 62. Therefore, the number of the liquid seal mounts 62 can be further reduced as compared with the case of the seventh embodiment and the modified example 5. Further, since the floor beam 61 having a narrow lateral width at the upper end surface can be employed as it is, the floor beam 61 can be reduced in weight.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a floor structure according to Embodiment 1 of the present invention.
2 is a cross-sectional view of the liquid ring mount used in Embodiment 1 of the present invention, and is a cross-sectional view taken along the line II-II in FIG.
FIG. 3 is a plan view of a liquid ring mount used in Embodiment 1 of the present invention.
FIG. 4 is a cross-sectional view of a floor structure according to Modification 1 of the present invention.
FIG. 5 is a cross-sectional view of a floor structure according to Embodiment 2 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 cross-sectional view of a floor structure according to Embodiment 3 of the present invention.
8 is a cross-sectional view of a floor structure according to Embodiment 4 of the present invention, cut 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 showing an arrangement state of support members arranged on the back surface of a floor panel in a floor structure according to Embodiment 4 of the present invention.
FIG. 11 is a cross-sectional view of a floor structure according to Embodiment 5 of the present invention.
FIG. 12 is a perspective view of a floor structure according to Embodiment 6 of the present invention.
FIG. 13 is a sectional view of a floor structure according to Modification 3 of the present invention.
FIG. 14 is a cross-sectional view of a floor structure according to Modification 4 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 cross-sectional view of a floor structure according to Modification 5 of the present invention.
FIG. 17 is a cross-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 beam
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 section
2, 12, 22, 32, 42, 52, 62 ... Liquid seal mount
12a, 32a, 52a, 62a ... Restraint plate 12b, 32b ... Bolt
12c, 32c ... nut 2a ... partition member 2b ... elastic support member
2c ... Main liquid chamber 2d ... Support member 2e ... Diaphragm
2f ... Secondary 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 finish material
43a ... first floor panel 43b ... second floor panel
14, 24, 35 ... C-type channel steel 34 ... Square pipe
14a, 34a ... Fastening members 53a, 63a ... Counterbore
64, 65 ... connecting member

Claims (11)

In the floor structure where the floor panel is arranged on the floor beam of the building structure,
Elasticity that forms a main liquid chamber between the plate-shaped partition member and the partition member that is formed in a cylindrical shape that is closed at one end and whose end surface on the opening side faces one surface of the partition member A support member, a cylindrical support member disposed so that one end surface thereof faces the other surface of the partition member, and an outer peripheral edge portion of the support member held by the inner peripheral portion of the support member. A flat liquid comprising a diaphragm that forms a sub liquid chamber therebetween, and an orifice passage that is provided between the partition member and the support member and communicates the main liquid chamber and the sub liquid chamber. A floor structure, wherein a seal mount is installed between the floor beam and the floor panel, and the floor panel is supported by the liquid seal mount. 2. The floor structure according to claim 1 , wherein the liquid seal mount is formed in a flat shape having a height to width ratio in a range of 1: 2 to 1:10. The floor structure according to claim 1 or 2, wherein a constraining plate is attached to an end face of the liquid seal mount on the side supporting the floor panel so as to cover the entire area of the end face. . The floor according to claim 3, wherein the restraint plate has a fastening member that fastens the restraint plate with the floor panel disposed on the restraint plate or a support member that supports the floor panel. Construction. The floor structure according to any one of claims 1 to 4, wherein the floor beam has a bracket on the side surface of which the liquid seal mount is installed. The said floor panel is formed with the composite board which consists of the casing formed with the metal plate, and the filler with which the internal space of this casing was filled and arrange | positioned , The any one of Claims 1-5 characterized by the above-mentioned. The floor structure according to the item . The floor structure according to any one of claims 1 to 6, wherein a support member that supports the floor panel is attached to a back surface of the floor panel. The floor structure according to claim 7, wherein the support member is disposed in a state where the support member is separated 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 by the floor beam and a second floor panel disposed at a distance from the first floor panel, The floor structure according to any one of claims 1 to 8 , wherein the liquid ring mount is installed between the first floor panel and the second floor panel. The floor panel has a counterbore portion 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 accommodated in the counterbore portion. The floor structure according to any one of claims 1 to 6, wherein the floor structure is provided. In the floor panel, a plurality of panel members having counterbore portions extending along the end surface are attached to the counterbore portion over the entire corner portion where the end surface and the back surface on the side placed on the floor beam intersect. And is supported by the liquid seal mount mounted on the floor beam and at least partially housed in the counterbore part via the connection member. The floor structure according to any one of claims 1 to 6 .

Images