JP6637238B2 - Building floor structure - Google Patents

Description

The present invention also relates to the floor structure of the building.

  Generally, in a building such as a house having a plurality of floors, the floor of the upper floor has a sound insulation floor structure in order to reduce floor impact noise from the upper floor. As such a sound-insulating floor structure, a plurality of rectangular plate-shaped vibration dampers are juxtaposed between a floor base material such as a particle board and a floor finish material such as a flooring laid above the floor base material. A known configuration is known (for example, see Patent Document 1). In this case, as the damping material, an asphalt-based damping plate having a large specific gravity is often used.

  The vibration damping material is basically arranged between the floor base material and the floor finishing material as an original (original dimensions). However, if the damping material is arranged as it is, the space for disposing the damping material will be narrowed, and it will not be possible to arrange the damping material as it is. Therefore, for such a portion, the damping material is cut using a cutter or the like according to the shape of the portion, and the cut damping material is disposed at the portion.

JP 2012-87514 A

  However, since the damping material is formed of a hard material such as asphalt, it is supposed that it takes a lot of time to cut (work) the damping material using a cutter or the like.

The present invention has been made in view of the above circumstances, is to to provide a floor structure of a building can be facilitated construction work main object.

  In order to solve the above problems, a floor structure of a building according to a first aspect of the present invention includes a floor covering material, and a floor finishing material laid above the floor covering material, wherein the floor covering material, the floor finishing material, In a floor structure of a building in which a plurality of plate-like damping materials are provided in a row, a predetermined damping material in which the damping material is not disposed between the floor base material and the floor finishing material is provided. And a spacer is provided in the space so as to fill the space.

  According to the present invention, there is a predetermined space in which the damping material is not provided between the floor base material and the floor finish material, and a spacer that fills the space is provided in that space. In such a floor structure, the respective damping materials may be arranged side by side with the original plate (original dimensions), and spacers may be arranged in the remaining space created thereby. Therefore, it is not necessary to perform the operation of cutting the damping material that is difficult to process, and as a result, it is possible to facilitate the construction operation.

  In the floor structure of a building according to a second aspect of the present invention, in the first aspect, the spacer is disposed along a peripheral portion of the floor finishing material between the floor base material and the floor finishing material. It is characterized by.

  On the floor surface of the floor finishing material (in other words, the floor surface of the living space), it is considered that the frequency at which the impact sound is generated due to the dropping of an object or the like is less than the peripheral portion at the center side. In view of this, in the present invention, in consideration of this point, the spacer is disposed along the peripheral portion of the floor finishing material between the floor covering material and the floor finishing material. In this case, it is possible to obtain the effect of the first invention while suppressing a decrease in sound insulation.

  In a floor structure of a building according to a third aspect of the present invention, in the second aspect, the spacer is provided over the entire periphery of the floor finishing material between the floor covering material and the floor finishing material. It is characterized by the following.

  According to the present invention, the spacer is provided between the floor covering material and the floor finishing material over the entire peripheral portion of the floor finishing material. In this case, since the spacers are provided along the respective edges of the floor finishing material, the width of the spacers provided on one edge can be reduced. This can further reduce the possibility that an impact sound is generated due to, for example, an object dropping on the floor surface of the floor finishing material, and therefore, it is possible to further suppress a decrease in sound insulation.

  A floor structure of a building according to a fourth invention is the floor structure of any one of the first to third inventions, wherein the damping material comprises an asphalt-based damping sheet and a cushioning material provided on the damping sheet. Wherein the floor finishing material is fixed by being driven into the floor base material in a state where a fixture penetrates the floor finishing material and the vibration damping material, respectively. .

  As the damping material, there is a damping material in which a cushioning material is provided on an asphalt-based damping sheet. The cushioning material absorbs the impact on the floor by expansion and contraction in the thickness direction (vertical direction). Therefore, by using such a damping material with a cushioning material, it is possible to improve the sound insulation (damping).

  Here, when a damping material with a cushioning material is used, the floor finishing material is fixed with a fixing member (a nail or a nail) in a state where a cushioning material (hence, a vibration damping material) is interposed between the floor base material and the floor finishing material. Screws, etc.) to fix it to the floor base material, so that if the fixing tool is driven in too much, the floor finish material will sink deeply locally, causing unevenness on the floor surface (upper surface of the floor finish material) Is concerned. In this respect, in the present invention, since the spacer is interposed between the floor covering material and the floor finishing material, it is possible to suppress the floor finishing material from sinking too much due to the driving of the fixing tool. Therefore, even if it is the structure which uses the damping material with the cushioning material, it is possible to suppress the occurrence of unevenness on the floor surface.

  In a floor structure of a building according to a fifth invention, in the fourth invention, an inner wall is provided on a periphery of the floor finishing material, and a baseboard is attached to the inner wall along an upper surface of the floor finishing material. The spacer is provided along the baseboard between the floor covering material and the floor finishing material.

  According to the present invention, the spacer is disposed along the baseboard attached to the inner wall between the floor covering material and the floor finishing material. In this case, it is possible to prevent the floor finishing material from sinking downward even when walking on the floor near the inner wall. For this reason, it is possible to suppress the occurrence of a gap between the upper surface of the floor finishing material and the lower end of the baseboard due to the sinking.

  In a floor structure of a building according to a sixth aspect of the present invention, in any one of the first to fifth aspects, the floor finishing material is configured by arranging a plurality of flooring materials in parallel. The fixing tool is fixed by being driven into the floor base material while penetrating the flooring material and the vibration damping material, respectively, and the spacer is provided between the flooring material and the floor base material. , Respectively.

  According to the present invention, since the respective spacers are provided between each flooring material and the floor base material, when each flooring material is fixed to the floor base material by the fixture, each of the flooring materials sinks. Can be suppressed respectively. Thus, in a configuration in which a floor surface is formed by a plurality of flooring materials, it is possible to appropriately suppress occurrence of unevenness on the floor surface.

  A floor structure manufacturing method according to a seventh aspect of the present invention is a floor base material providing step of installing a floor base material on a floor beam, and a vibration damping material setting step of arranging a plurality of plate-like vibration damping materials on an upper surface of the floor base material. And a spacer installation step of installing a spacer in a predetermined space where the vibration damping material is not provided on the upper surface of the floor base material, and a floor finish by covering the plurality of vibration damping materials and the spacer from above, respectively. A floor finish in which a material is laid and a fixing tool is driven into the floor base material in a state where the floor finishing material and the vibration damping material are respectively penetrated, and the floor finish material is fixed to the floor base material by the fixing tool. And a step.

  According to the present invention, when manufacturing a floor structure, a floor base material is first installed on a floor beam, and thereafter, a plurality of vibration damping materials and spacers are installed side by side on the upper surface of the floor base material. Then, a floor finishing material is laid so as to cover the respective vibration damping materials and the spacers from above, and the floor finishing material is fixed to the floor base material by the fixture.

  According to such a configuration, when a plurality of vibration damping materials are arranged side by side on the floor base material, a gap (space) where the vibration damping material is not arranged is allowed on the floor base material. The vibration materials can be arranged side by side with the original plate (original dimensions). And, by arranging a spacer in the above-mentioned space generated thereby, the space can be filled. In this case, since it is not necessary to cut the damping material which is difficult to process, it is possible to facilitate the work.

The top view which shows the floor plan of the second floor part. FIG. 2 is a perspective view showing a configuration of a building unit. The longitudinal section showing the composition of the floor part of a bedroom. FIG. 4 is a plan view showing a state where a plurality of vibration dampers are provided side by side. The top view showing the state where a plurality of flooring materials were provided side by side. The figure for demonstrating the operation | work which lays a flooring material. FIG. 13 is a plan view showing an arrangement state of a spacer according to another embodiment. FIG. 13 is a plan view showing an arrangement state of a spacer according to another embodiment.

  An embodiment of the present invention will be described below with reference to the drawings. In the present embodiment, the floor structure of the building of the present invention is embodied in a unit-type building including a plurality of building units. The building of the present embodiment is a two-story building having a first-floor part and a second-floor part. FIG. 1 is a plan view showing the floor plan of the second floor.

  As shown in FIG. 1, two bedrooms 11 and 12, a corridor 13, a storage room 14, and a toilet 15 are provided as indoor spaces on the second floor of the building 10. The bedroom 11 is partitioned by a partition wall 17. The partition wall 17 is provided so as to surround the bedroom 11, and the bedroom 11 is adjacent to the corridor 13 with the partition wall 17 interposed therebetween. The partition wall 17 is provided with entrances 18a and 18b for entering and exiting the bedroom 11 and the corridor 13. Two doorways 18a and 18b are provided side by side, and doors 19a and 19b are provided at the respective doorways 18a and 18b.

  A narrow partition wall 28 extends toward the bedroom 11 from the boundary between the entrances 18 a and 18 b in the partition wall 17. The bedroom 11 can be partitioned into two rooms by extending the partition wall 28 by renovation. Note that the partition wall 28 may not be provided in the bedroom 11. Beds 29 a and 29 b are provided in the bedroom 11 adjacent to the partition wall 17.

  The second floor is configured by connecting a plurality of building units 20 to each other. The indoor spaces 11 to 15 are formed by the internal spaces of these building units 20. Of these indoor spaces 11 to 15, the bedroom 11 is formed using the internal space of two adjacent building units 20.

  Next, the configuration of the building unit 20 will be briefly described with reference to FIG. FIG. 2 is a perspective view showing the configuration of the building unit 20.

  As shown in FIG. 2, the building unit 20 includes four pillars 21 arranged at four corners thereof, and four ceiling girders 22 and floor girders 23 connecting the upper end and the lower end of each pillar 21, respectively. And The pillars 21, the ceiling girders 22, and the floor girders 23 form a rectangular parallelepiped skeleton (frame). The column 21 is made of a square tubular square steel. The ceiling girder 22 and the floor girder 23 are made of channel steel having a U-shaped cross section, and are installed such that their openings face each other.

  A plurality of ceiling beams 25 are bridged at predetermined intervals between the opposite ceiling beams 22 on the long side of the building unit 20. Similarly, a plurality of floor beams 26 are bridged at predetermined intervals between opposing floor beams 23 on the long side of the building unit 20. The ceiling small beams 25 and the floor small beams 26 are provided at the same intervals and at positions corresponding to the up and down directions. The ceiling beam 25 is made of lip channel steel, and the floor beam 26 is made of square steel.

  Next, the configuration of the floor of the bedroom 11 will be described. FIG. 3 is a longitudinal sectional view showing the configuration of the floor of the bedroom 11. FIG. 3 corresponds to a cross-sectional view taken along line AA of FIG.

  As shown in FIG. 3, the floor portion of the bedroom 11 includes a floor base material 31 provided on the floor girders 23 and the floor beams 26 of the building unit 20, and a plurality of floor base materials 31 provided side by side on the upper surface of the floor base material 31. And a floor finishing material 33 laid on the upper surface of the plurality of vibration damping materials 32 and forming the floor surface 34 of the bedroom 11.

  The floor base material 31 is formed of a particle board, and is fixed to the large floor beam 23 and the small floor beam 26 with screws or the like. The floor base material 31 includes a unit base material 31a provided in the building unit 20 and a connecting base material (not shown) provided between the unit base materials 31a of the adjacent building units 20. 2 is a joist provided between the floor girders 23 and the floor base material 31.

  The damping material 32 includes a damping sheet 36 (damping plate) and a felt 37 provided on one surface of the damping sheet 36. The damping material 32 is formed in a rectangular plate shape as a whole. The damping sheet 36 is made of an asphalt-based damping sheet. More specifically, the damping sheet 36 is formed in a sheet shape by adding iron oxide powder to asphalt. The felt 37 is laminated on one surface of the vibration damping sheet 36, and is fixed to the vibration damping sheet 36 in this state by bonding or the like.

  The damping material 32 is placed on the upper surface of the floor base material 31 with the damping sheet 36 on the upper side and the felt 37 on the lower side. The felt 37 has elasticity in the thickness direction, and is compressed between the damping sheet 36 and the floor base material 31 when the damping material 32 is placed. Note that the felt 37 corresponds to a “buffer” and a “stretchable material”.

  A plurality of vibration damping materials 32 are provided between the floor base material 31 and the floor finishing material 33. FIG. 4 is a plan view showing a state in which the plurality of vibration damping members 32 are provided side by side. As shown in FIG. 4, each of the damping members 32 (specifically, the damping sheet 36 and the felt 37) has a rectangular shape in a plan view, and the long side has a length of the short side of 2 mm. Doubled. More specifically, each of the vibration damping members 32 has the same shape and size (vertical and horizontal dimensions) in plan view, and more specifically, its vertical and horizontal dimensions are the dimensions (original dimensions) of the original. .

  The respective vibration damping materials 32 are arranged in a grid shape between the floor base material 31 and the floor finishing material 33. In the arrangement state of each damping material 32, a predetermined space 41 in which the damping material 32 is not provided exists between the floor base material 31 and the floor finishing material 33. The space 41 is formed (extends) along the peripheral edge of the floor finishing material 33 (floor surface 34), and more specifically, is continuously formed over the entire peripheral edge of the floor finishing material 33. . That is, the space 41 is formed (extends) along each edge of the floor finishing material 33, and the width of the spacer 42 extending along each edge of the floor finish 33 is equal to that of the damping material 32. Is smaller than the width (length in the lateral direction).

  In the space 41, a spacer 42 is provided so as to fill the space 41. The spacer 42 is formed of plywood, and is disposed over the entire space 41 described above. The spacers 42 are divided into a plurality in the direction in which the space 41 extends, and the plurality of spacers 42 are disposed so as to cover the entire space 41. Each of the spacers 42 is formed in a long plate shape having the same predetermined thickness t1, and the thickness thereof is the thickness t3 of the damping material 32 when the felt 37 is in a natural state (the damping sheet 36). (The sum of the thickness of the felt 37 and the thickness of the felt 37) (see FIG. 6). The spacer 42 does not necessarily need to be formed of a plywood, but may be formed of another plate material such as a particle board or a hard resin.

  As described above, the plurality of vibration damping materials 32 are arranged in parallel between the floor base material 31 and the floor finishing material 33, and the plurality of spacers 42 are arranged so as to surround the respective vibration damping materials 32. ing.

  Floor finishing materials 33 are laid on the upper surface of each damping material 32 and the upper surface of each spacer 42. The floor finishing material 33 is laid so as to cover the upper surface (entire region) of each damping material 32 and the upper surface (entire region) of each spacer 42 from above. The floor finishing material 33 is configured by providing a plurality of flooring materials 38 side by side. FIG. 5 is a plan view showing a state where the respective flooring materials 38 are provided side by side.

  As shown in FIGS. 3 and 5, the flooring material 38 is formed in a long plate shape from a wood-based material. Each flooring material 38 is arranged side by side with its longitudinal direction facing the same direction, and the flooring material 34 forms the floor surface 34 of the bedroom 11.

  Adjacent flooring materials 38 are joined by tearing their end faces together. Of the respective end faces of the adjacent flooring materials 38 that face each other, a real part 45 protruding from the end face is provided on one end face, and a groove part 46 is provided on the other end face. The real part 45 is inserted into the groove part 46, and the groove part 46 and the real part 45 are fitted with each other in the inserted state. The adjacent flooring members 38 are joined to each other by the fitting of the groove portions 46 and the real portions 45.

  Each flooring material 38 is fixed to the floor base material 31 by nails 48. The nail 48 is driven into the base part of the real part 45 of the flooring material 38 from obliquely above, and is driven into the floor base material 31 while penetrating the flooring material 38 and the vibration damping material 32. In this case, the nails 48 are not exposed in a state where the flooring materials 38 are stuck together. The nails 48 are driven into a plurality of locations on one flooring material 38. Note that the nail 48 corresponds to a fixture.

  Of the respective flooring materials 38, a part of the flooring material 38 disposed on the peripheral portion is disposed on the spacer 42. As for the flooring material 38, some nails 48 are driven into the floor base material 31 while penetrating the flooring material 38 and the spacer 42.

  When each flooring material 38 is fixed to the flooring material 31, the distance between the upper surface of the flooring material 31 and the lower surface of the flooring material 38 is the same as the thickness t1 (vertical dimension) of the spacer 42. In this case, the thickness t2 of the damping material 32 is the same as the thickness t1 of the spacer 42 by compressing the felt 37 in the thickness direction. Thus, the damping material 32 and the spacer 42 are interposed between the floor base material 31 and each flooring material 38 (floor finishing material 33) over the entire area.

  An inner wall material 51 is provided on the floor base material 31 at a peripheral portion of the floor finish material 33. The inner wall member 51 is made of a gypsum board, and is provided with its lower end placed on the upper surface of the floor substrate 31. The inner wall material 51 constitutes the bedroom 11 side of the partition wall 17 and corresponds to an “inner wall”. The inner wall material 51 is provided so as to surround each spacer 42 (and each vibration damping material 32) and the floor finishing material 33 (each flooring material 38). The spacer 42 and the flooring material 38 arranged near the wall of the inner wall material 51 are arranged so as to abut against the inner surface of the inner wall material 51 (the wall surface on the bedroom 11 side).

  A skirting board 52 is attached to the inner surface of the inner wall material 51 (the surface on the bedroom 11 side) along the upper surface of the floor finishing material 33. The baseboard 52 extends along the width direction of the inner wall member 51 with its lower end portion in contact with the upper surface of the floor finishing material 33. A spacer 42 is provided below the baseboard 52 with the floor covering 33 interposed therebetween, and the spacer 42 extends along the baseboard 52.

  Next, a description will be given of a work flow when the floor of the bedroom 11 is constructed.

  First, an underfloor material step of installing the underfloor material 31 on the floor beams 23 and 26 of each of the building units 20 constituting the bedroom 11 is performed. In this step, the unit base material 31a among the floor base materials 31 is assembled on the floor beams 23 and 26 of each building unit 20 at the unit manufacturing factory. On the other hand, as for the connecting base material, after each building unit 20 is installed at the construction site, it is assembled on the floor girder 23 adjacent to each building unit 20.

  As for the partition wall 17 provided around the bedroom 11, the wall portion provided in each building unit 20 is assembled to each building unit 20 at the unit manufacturing factory, and the wall portion provided across the building units 20 is provided. Is assembled to the building unit 20 at the construction site.

  Next, a vibration damping material setting step of setting the damping material 32 on the upper surface of the floor base material 31 and a spacer setting step of setting the spacer 42 on the upper surface of the floor base material 31 are performed. In the vibration damping material installation step, each vibration damping material 32 is arranged in its original form (original dimensions). In the spacer installation step, each spacer 42 is disposed in the predetermined space 41 on the floor base material 31. In these steps, for example, first, the respective spacers 42 are respectively set on the floor base material 31, and then the respective vibration damping materials 32 are respectively set on the floor base material 31. However, conversely, first, each damping material 32 may be installed on the floor base material 31, and then each spacer 42 may be installed on the floor base material 31. Further, the damping members 32 and the spacers 42 may be alternately provided. In short, the order in which the damping members 32 and the spacers 42 are provided may be arbitrary.

  Next, a floor finishing step of laying flooring materials 38 on the upper surface of the vibration damping material 32 (vibration damping sheet 36) and the upper surface of the spacer 42 and fixing each of the flooring materials 38 to the floor base material 31 with nails 48 is performed. Do. In this step, first, among the respective flooring materials 38, the flooring material 38 arranged at the peripheral edge, in other words, the flooring material 38 part of which is arranged on the spacer 42, is laid. FIG. 6 shows the state of the laying work.

  As shown in FIG. 6A, the felt 37 is in a natural state (non-compressed state) before the flooring material 38 is disposed on the vibration damping material 32 and the spacer 42. t3 is larger than the thickness t1 of the spacer 42. Then, in this state, as shown in FIG. 6B, the flooring material 38 is disposed so as to straddle the upper surface of the damping material 32 and the upper surface of the spacer 42. Specifically, first, the flooring material 38 is placed on the upper surface of the vibration damping material 32 at a position higher than the upper surface of the spacer 42, and in this state, the flooring material 38 is pressed downward. As a result, the felt 37 of the damping material 32 is compressed between the floor covering material 31 and the flooring material 38, and as a result, the thickness t2 of the damping material 32 becomes the same as the thickness t1 of the spacer 42, and the flooring material 38 Are placed on the upper surface of the damping material 32 and the upper surface of the spacer 42, respectively. Further, in this case, the flooring material 38 is disposed in a state of being abutted against the inner wall material 51.

  Subsequently, an operation of fixing the flooring material 38 to the floor base material 31 with the nails 48 while the flooring material 38 is placed is performed. In this operation, the nail 48 is driven into the floor base material 31 by penetrating the flooring material 38 and the vibration damping material 32 respectively. In this case, since the spacer 42 is provided below the flooring material 38, even if the felt 37 is interposed between the flooring material 38 and the floor base material 31, the flooring material is driven by the driving of the nail 48. 38 can be suppressed from sinking downward. In this manner, the height of the floor surface 34 of the flooring material 38 (at the peripheral edge) is defined at a predetermined height.

  Next, an operation of installing a new flooring material 38 is performed next to the preinstalled flooring material 38. In this installation, the real part 45 (groove part 46) of the post-installed flooring material 38 is fitted into the groove part 46 (real part 45) of the pre-installed flooring material 38, and the two flooring materials 38 are stuck together. Then, the post-installed flooring material 38 is fixed to the floor base material 31 with nails 48 in the same manner as the case of fixing the pre-attached flooring material 38 to the floor base material 31. At the time of this fixing, since the height of the floor surface 34 of the pre-attached flooring material 38 has already been set to a predetermined height, the flooring 34 of the post-installed flooring material 38 is set to the predetermined height. The member 38 is fixed with a nail 48.

  In this manner, the remaining flooring materials 38 are also sequentially installed on the vibration damping material 32 and fixed to the floor base material 31. Thereby, the floor finishing material 33 is laid.

  According to the configuration of the present embodiment described in detail above, the following excellent effects can be obtained.

  A predetermined space 41 in which the damping material 32 is not provided is set between the floor base material 31 and the floor finishing material 33, and a spacer 42 that fills the space 41 is provided in the space 41. According to such a configuration, the vibration damping members 32 may be arranged side by side with the original plate (original dimensions), and the spacers 42 may be arranged in the remaining space 41 created thereby. Therefore, it is not necessary to perform the operation of cutting the vibration damping material 32 that is difficult to process, and as a result, it is possible to facilitate the construction operation.

  The predetermined space 41 was formed along the periphery of the floor finishing material 33 between the floor covering material 31 and the floor finishing material 33, and a spacer 42 was provided for the space 41. The peripheral portion of the floor surface 34 of the floor finishing material 33 (in other words, the floor surface of the bedroom 11) is considered to have a lower frequency of impact noise due to falling objects, as compared with the center side. By doing so, it is possible to facilitate the construction work while suppressing a decrease in sound insulation.

  Specifically, the predetermined space 41 was formed over the entire periphery of the floor finishing material 33, and the spacer 42 was provided over the entire space 41. In this case, since the spacers 42 are provided along the respective edges of the floor finishing material 33, the width of the spacers 42 provided on one edge can be reduced. This can further reduce the possibility that an impact sound is generated due to an object falling on the floor surface 34 of the floor finishing material 33 and the like, so that a decrease in sound insulation can be further suppressed.

  As the damping material 32, a material in which the felt 37 is overlapped with the asphalt-based damping sheet 36 is used, it is possible to improve the sound insulation (damping). In addition, in the configuration using the damping material 32 with such a felt, since the spacer 42 is interposed between the floor base material 31 and the floor finishing material 33 (the flooring material 38), the floor finishing material 33 is used. In fixing to the floor base material 31 with the nails 48, it is possible to suppress the floor finishing material 33 from sinking too much as the nails 48 are driven. Therefore, it is possible to suppress the occurrence of unevenness on the floor surface 34.

  In addition, in the case of the damping material 32 with felt, when cutting the damping material 32, not only the damping sheet 36 but also the felt 37 needs to be cut (processed) with a cutter or the like. Therefore, when processing such a vibration damping material 32, it is conceivable that the labor is increased. In this regard, by eliminating the need to process the damping material 32, the above-described effect of facilitating the construction work can be obtained as a great effect.

  The spacer 42 was disposed along the inner wall material 51 (partition wall 17) between the floor base material 31 and the floor finish material 33. In this case, since the spacer 42 is disposed along the baseboard 52 attached to the inner wall material 51, the floor finishing material 33 sinks downward even when walking on the floor 34 near the wall of the inner wall material 51. Can be suppressed. Therefore, it is possible to prevent a gap from being generated between the upper surface of the floor finishing material 33 and the lower end of the baseboard 52 due to the sinking.

  Furniture such as the beds 29a and 29b is often installed on the floor surface 34 near the wall of the inner wall material 51 (partition wall 17), and the floor surface 34 sinks due to the weight of the furniture. Although there is a concern that such a sink may occur, such sinking can be suppressed by disposing the spacer 42 along the inner wall material 51 as described above.

  The present invention is not limited to the above embodiment, and may be implemented, for example, as follows.

  (1) In the above embodiment, the spacer 42 is disposed between the floor covering material 31 and the floor finishing material 33 over the entire peripheral portion of the floor finishing material 33. May be provided only in a part of. In other words, in the above-described embodiment, the spacers 42 are disposed along the respective edges of the floor finishing material 33. You may arrange | position (only) along a side part. In this case, for example, it is conceivable to dispose the spacers 42 only at two end sides of the floor finishing material 33 that are orthogonal to each other.

  (2) The spacer may be provided between the floor covering material 31 and the floor finishing material 33 at a portion other than the peripheral edge of the floor finishing material 33. For example, in FIG. 7, a spacer 55 is provided between the floor covering material 31 and the floor finishing material 33, in addition to the spacer 42, and the spacer 55 is provided on a portion other than the peripheral edge of the floor finishing material 33. It is arranged. The spacers 55 are made of a long plate having the same thickness as the spacers 42, and are arranged in plural numbers (specifically, three) at predetermined intervals along the longitudinal direction of the flooring material 38 in a direction orthogonal to the flooring material 38. I have. In addition, each spacer 55 is disposed so as to straddle both spacers 42 disposed at respective end portions facing each other in the floor finishing material 33.

  The spacers 55 and the spacers 42 arranged on both sides of the spacers 55 in the direction in which the spacers 55 are arranged (in other words, the longitudinal direction of the flooring material 38) are spaced apart from each other by a predetermined distance along the arrangement direction. (Specifically, at equal intervals). In this case, the interval between the adjacent spacers 42 and 55 is smaller than the length of the flooring material 38, and specifically, is about half the length of the flooring material 38. This interval is the same as the length (length in the longitudinal direction) of the damping material 32, and each damping material 32 is disposed between the adjacent spacers 42 and 55 with the original dimensions. Have been.

  Since each spacer 55 is provided as described above, at least one spacer 42, 55 is provided below each flooring material 38. In this case, when each flooring material 38 is fixed to the floor base material 31 with the nail 48, each flooring material 38 can be suppressed from sinking downward. For this reason, in the configuration in which the floor surface 34 is formed by the flooring materials 38, it is possible to preferably suppress the occurrence of unevenness on the floor surface 34.

  (3) From the viewpoint of suppressing the occurrence of unevenness on the floor surface 34, the spacers may be arranged so as to be scattered between the floor base material 31 and the floor finish material 33. For example, in FIG. 8, between the floor base material 31 and the floor finish material 33, in addition to the spacers 42, a plurality of (specifically, five) spacers 56 are provided in an inner region surrounded by the spacers 42. Are scattered. The spacers 56 are formed in a rectangular plate shape (specifically, a square plate shape) having the same thickness as the spacer 42, and the size thereof is smaller than that of the vibration damping material 32. Each of the spacers 56 is disposed at an adjacent portion where the three flooring materials 38 are adjacent (collected), and is arranged so as to straddle the three flooring materials 38 at the adjacent portions.

  According to such a configuration, since the three flooring members 38 forming the adjacent portions can be suppressed from sinking, it is possible to further suppress the occurrence of unevenness on the floor surface 34. However, in the above configuration, it is necessary to form notches, holes, and the like for arranging the spacers 56 in the damping material 32. Therefore, when the damping material 32 is laid, the damping material 32 is cut (processed). ) May occur.

  (4) In the above-described embodiment, the damping material 32 in which the felt 37 is laminated on one surface of the damping sheet 36 is used, but the damping sheet 36 in which the felt 37 is laminated on both surfaces is used. Is also good. Further, as the cushioning material, it is not always necessary to use the felt 37, and another cushioning material such as a nonwoven fabric may be used.

  Further, as the vibration damping material 32, it is not always necessary to use a material having a felt, and a type having no felt, that is, a material having only a vibration damping sheet may be used. Also in this case, since the work of cutting the vibration-damping sheet, which is difficult to process, can be omitted, the construction work can be facilitated.

  (5) In the above-described embodiment, the floor finishing material 33 is configured by the plurality of flooring materials 38. However, another configuration may be used, such as the floor finishing material configured by a plurality of tiles.

  (6) In the above embodiment, the floor structure of the present invention is applied to the floor of the bedroom 11 on the second floor, but instead or additionally, the floor structure of the present invention is applied to the floor of the bedroom 11. Is also good. Further, the floor structure of the present invention may be applied to the floor of a non-living room such as the storage room 14 without being limited to the floor of a living room such as the bedrooms 11 and 12.

  In the above embodiment, the floor structure of the present invention is applied to the floor of the second floor in the building, but the present invention may be applied to the floor of the third floor or more in a building of three or more floors. In the above-described embodiment, an example of application to a unit-type building has been described. However, the present invention can be applied to a building having another structure, such as a building constructed by a steel frame construction method.

  DESCRIPTION OF SYMBOLS 10 ... Building, 20 ... Building unit, 23 ... Floor girder as a floor beam, 26 ... Floor girder as a floor beam, 31 ... Floor base material, 32 ... Damping material, 33 ... Floor finishing material, 36 ... Vibration suppression Sheet, 37: felt as cushioning material, 38: flooring material, 41: space, 42: spacer, 48: nail as fixing tool, 51: inner wall material as inner wall, 52: baseboard.

Claims (5)

Flooring material,
A plurality of plate-shaped damping materials provided side by side on the upper surface of the floor base material,
In a floor structure of a building including a floor finishing material laid on an upper surface of the plurality of vibration damping materials,
Each of the vibration damping materials has a rectangular shape in plan view, and the shape and size in plan view are all the same,
A predetermined space where the vibration damping material is not provided exists between the floor base material and the floor finishing material,
The space extends along the peripheral edge of the floor covering material over the entire peripheral edge,
A floor structure for a building, wherein a plurality of spacers are arranged in the space so as to fill the entire area of the space, over the entire periphery of the floor finishing material. 2. The method according to claim 1, wherein, of the plurality of spacers, the spacer arranged along a predetermined edge of the floor finishing material is divided into a plurality in a direction in which the edge extends. 3. Floor structure of the described building. The vibration damping material is configured to include an asphalt-based vibration damping sheet and a cushioning material provided on the vibration damping sheet,
The said floor finishing material is being fixed by being driven into the said floor base material in the state which the fixture penetrated the said floor finishing material and the said vibration damping material, respectively, The Claim 1 or 2 characterized by the above-mentioned. Building floor structure. An inner wall is provided on the periphery of the floor finishing material,
A skirting board is attached to the inner wall along an upper surface of the floor finishing material,
The floor structure of a building according to claim 3 , wherein the spacer is provided along the baseboard between the floor covering material and the floor finishing material. The floor finishing material is configured by a plurality of flooring materials arranged in parallel,
The respective flooring materials are fixed by being driven into the floor base material in a state where the fixing tool penetrates the flooring material and the vibration damping material, respectively.
The spacer, the floor structure of a building according to claim 3 or 4, characterized in that it is arranged each of the below each flooring.

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