JP6428840B2 - Floor structure and floor construction method - Google Patents

Description

  The present invention relates to a floor structure using an elastic member and a floor construction method.

  There is a floor structure in which an elastic member is disposed on a floor beam and a floor panel is disposed on the elastic member (see, for example, Patent Document 1). The elastic member attenuates the vibration of the floor panel or lowers the vibration frequency, and suppresses the vibration from being directly transmitted to the floor beam and the downstairs ceiling.

Japanese Patent Laying-Open No. 2015-17491

  In order to efficiently attenuate or reduce the frequency of floor vibration (hereinafter referred to as attenuation), it is better to soften the elastic member. However, when the elastic member is softened, the elastic member is compressed beyond the allowable value due to the weight of the floor panel and the load received by the floor panel, and the vibration of the floor panel cannot be attenuated. That is, if the elastic member is too hard or too soft, the floor vibration cannot be damped efficiently. To prevent this, there is a method of increasing the thickness of the elastic member. However, since the floor level changes, it is desirable that the elastic member be as thin as possible.

  On the other hand, the floor panel supported by the elastic member has a plurality of types of sizes. If the size is different, the weight applied to one panel is different, so the load received by the elastic member is different depending on the size of the floor panel. Therefore, in the current specification in which each floor panel of different size is supported by the elastic member in the same manner, the elastic member is compressed beyond the allowable value in one floor panel, and performance such as vibration damping cannot be exhibited. One floor panel has a problem that the elastic member is too hard to sufficiently exhibit performance such as vibration damping.

  This invention is made | formed in view of the situation mentioned above, The objective is to improve performance, such as a vibration damping in a floor structure.

  (1) A floor structure according to the present invention includes a beam, a first floor panel supported by the beam, a second floor panel supported by the beam, and between the beam and the first floor panel. A second elastic member which is located between the beam and the second floor panel and which is elastically deformed at least in the vertical direction. And a member. The thickness of the second floor panel is the same as the thickness of the first floor panel, and the area of the upper surface is smaller than the area of the upper surface of the first floor panel. The thickness of the second elastic member is the same as the thickness of the first elastic member, the area of the upper surface thereof is the same as the area of the upper surface of the first elastic member, and the hardness thereof is the first elastic member. Less than the hardness of the member.

  The beam supports the first elastic member and the second elastic member. The first elastic member supports the first floor panel. The second elastic member supports the second floor panel.

  Since the first floor panel and the second floor panel have the same thickness, the second floor panel having a smaller upper surface area than the first floor panel is lighter in weight than the first floor panel. That is, the second elastic member having a lower hardness than the first elastic member supports the second floor panel that is lighter than the first floor panel. Therefore, the second elastic member is not likely to be compressed beyond an allowable value, and can efficiently attenuate the vibration of the second floor panel. As a result, performance such as vibration damping is enhanced.

  (2) Preferably, the shape of the first elastic member and the shape of the second elastic member may be the same.

  By making the shape the same, parts management becomes easy and construction becomes easy. That is, by having the same shape, the first elastic member and the second elastic member can be attached to the beam in the same manner in the attachment direction, and as a result, the construction is facilitated.

  (3) Preferably, the first elastic member and the second elastic member may be different in color.

  A difference in hardness between the first elastic member and the second elastic member can be easily recognized by the operator by color. That is, the shape is the same to improve workability, and the hardness is identified by color.

  (4) Preferably, the upper surface of the first floor panel and the upper surface of the second floor panel are each rectangular, and the first elastic member has both ends of the side along the longitudinal direction of the upper surface of the first floor panel. The second elastic member may be positioned below both ends of the side along the longitudinal direction of the upper surface of the second floor panel.

  The first floor panel is supported by the first elastic member at both ends in the longitudinal direction, and the second floor panel is supported by the second elastic member at both ends in the longitudinal direction. Accordingly, the first elastic member and the second elastic member can reliably support the first panel and the second floor panel.

  (5) Preferably, the upper surface of the first floor panel and the upper surface of the second floor panel are each rectangular, and the beam is in a short direction of each upper surface of the first floor panel and the second floor panel. The first elastic member is located near both ends of the short side of the first floor panel, and the second elastic member is located on the second floor. The panel may be positioned below both ends of the short side.

  The first floor panel is supported by the first elastic member at the four corners. The second floor panel is supported by the second elastic member at the four corners. Therefore, the first elastic member and the second elastic member can reliably support the first floor panel and the second floor panel.

(6) Preferably, the ratio between the hardness of the first elastic member and the area of the upper surface of the first floor panel is the same as the ratio of the hardness of the second elastic member and the area of the upper surface of the second floor panel. There may be.

  The hardness of the first elastic member and the second elastic member is set appropriately. As a result, the performance such as attenuation is further enhanced.

  (7) Preferably, the floor structure according to the present invention has a third floor whose thickness is the same as the thickness of the first floor panel and whose upper surface area is smaller than the upper surface area of the second floor panel. It is located between the panel, the beam and the third floor panel, is elastically deformed at least in the vertical direction, and the thickness is the same as the thickness of the first elastic member, and the area of the upper surface May further include a third elastic member having the same area as the upper surface of the second elastic member and having a hardness lower than that of the second elastic member.

  By limiting the elastic members to the three types of the first elastic member, the second elastic member, and the third elastic member, improvement in performance such as damping and workability of the floor structure can be achieved with a good balance.

  (8) In the floor construction method of the present invention, at the first place, the first elastic member that elastically deforms at least in the vertical direction and the hardness that is smaller than the hardness of the first elastic member and elastically deforms at least in the vertical direction. In the first step in which at least one of the second elastic members is attached to the beam and the second location which is a construction site different from the first location, a plurality of the beams are combined and above the first elastic member. And a second step in which a second floor panel having an upper surface with an area smaller than an area of the upper surface of the first floor panel is disposed above the second elastic member.

  The present invention can also be understood as a floor construction method. Since the elastic member is attached to the beam at the first place other than the construction site, the work at the construction site becomes easy. In addition, it is possible to prevent an elastic member having a different hardness from being erroneously used at a construction site.

  (9) Preferably, the first elastic member and the second elastic member may be different in color.

  A difference in hardness between the first elastic member and the second elastic member can be easily recognized by the operator by color.

  The floor structure according to the present invention can enhance performance such as vibration damping.

FIG. 1 is a perspective view of a floor structure 10 according to an embodiment. FIG. 2 is an exploded perspective view of the floor structure 10 according to the embodiment. FIG. 3 is an enlarged view of a part of FIG. FIG. 4 is a plan view of the floor beam 14. 5 is a cross-sectional view of VA, VB, VC, and VD in FIG. FIG. 6 is a table showing the relationship between the hardness of the elastic members 31 to 34 and the weight of the floor panel 40. FIG. 7 is an explanatory diagram of the floor construction method 60. FIG. 8 is an exploded perspective view of the floor structure 10 according to the second modification.

  Hereinafter, embodiments of the present invention will be described. The embodiment described below is merely an example of the present invention, and it is needless to say that the embodiment of the present invention can be changed as appropriate without departing from the gist of the present invention.

  The floor structure 10 of this embodiment is shown in FIG. The floor structure 10 is a part of a building made of, for example, reinforced concrete, and constitutes one floor (for example, the third floor).

  The floor structure 10 includes a floor beam 14, elastic members 31 to 34 placed on the floor beam 14, and a plurality of floor panels 40 placed on the elastic members 31 to 34.

  As shown in FIGS. 2 and 3, the floor beam 14 has a plurality of beams 20. The beam 20 is, for example, an H-shaped steel. In the illustrated example, eight beams 21 to 28 that are H-shaped steels are shown.

  The beams 21 to 28 are fixed to the upper ends of a plurality of columns (not shown) erected on the foundation by welding or the like. Alternatively, the beams 21 to 28 are fixed to the upper ends of columns (not shown) that are erected on the floor beams below the floor.

  A rectangular outer frame is assembled by four of the eight beams 21 to 24. Specifically, the long beam 21 and the beam 22 are arranged in parallel on the horizontal plane, the short beam 23 and the beam 24 are arranged in parallel on the horizontal plane, and the respective ends are welded, A rectangular outer frame is assembled. The upper surfaces 21A to 24A of the four beams 21 to 24 are flush with each other. In the following description, the longitudinal direction of the long beams 21 and 22 is the first direction 11, and the longitudinal direction of the short beams 23 and 24 is the second direction 12. The first direction 11 and the second direction 12 are along the horizontal direction and are orthogonal to each other.

  Four beams 25 to 28 are arranged inside the outer frame. The beam 25 has the same length as the short beams 23 and 24, and is arranged in parallel to the beams 23 and 24 and close to the beam 23 between the beams 23 and 24. One end of the beam 25 is welded to the beam 21, and the other end is welded to the beam 22. The upper surface 25A of the beam 25 and the upper surfaces 21A to 24A of the beams 21 to 24 are flush with each other. The beam 25 divides the area inside the outer frame into two large and small areas 51 and 52. The smaller area 51 is further divided into four small areas 53 to 56 by three beams 26 to 28. This will be specifically described. The three beams 26 to 28 have the same length, and the same length as the separation distance between the beam 23 and the beam 25 in the first direction 11. The three beams 26 to 28 are arranged at substantially equal intervals in the second direction 12 with the longitudinal direction coinciding with the first direction 11. Accordingly, the small areas 53 to 56 are substantially the same rectangular area. One end of the beams 26 to 28 in the first direction 11 is welded to the beam 23, and the other end is welded to the beam 25. The upper surfaces 26A to 28A of the beams 26 to 28 and the upper surfaces 23A to 25A of the beams 23 and 25 are flush with each other.

  In each of the regions 52 to 56, floor panels 41 to 44 having different areas and weights are respectively arranged. This will be described in detail with reference to FIG. In addition, in FIG. 4, the floor panels 41-44 are shown by the virtual line (two-dot chain line).

  The first floor panel 41 is disposed in the large area 52. In the illustrated example, four first floor panels 41 are arranged in the large area 52. The first floor panel 41 has a rectangular plate shape in which the second direction 12 is a longitudinal direction, the first direction 11 is a width direction, and the vertical direction 13 (FIG. 2) is a thickness direction. The length of the first floor panel 41 in the second direction 12 is slightly longer than the length of the beam 24 in the second direction 12. Therefore, the first floor panel 41 can be bridged between the beam 21 and the beam 22. The first floor panel 41 is, for example, a floor slab, ALC (autoclaved lightweight aerated concrete), or a hollow extruded cement board in which a hollow inorganic portion is filled with a sand-like inorganic material. The same applies to floor panels 42 to 44 described below.

  The first floor panel 41 is used as it is by cutting a standard floor slab or the like. The cutting process includes a process for slightly narrowing the width, a process for slightly shortening the length, and a corner process. The same applies to floor panels 42 to 44 described later. In the illustrated example, the four first floor panels 41 have the same shape, but may have slight differences in the width, length, shape of the four corners, and the like. In other words, the first floor panel 41 is treated as long as it has almost the same area. “Area” means the area of the upper surface of the first floor panel 41. The same applies to floor panels 42 to 44 described later.

  The second floor panel 42 is disposed in the small area 55. In the illustrated example, one second floor panel 42 is disposed in the small region 55. The second floor panel 42 has a rectangular plate shape in which the first direction 11 is a longitudinal direction, the second direction 12 is a width direction, and the vertical direction 13 is a thickness direction. The length of the second floor panel 42 in the second direction 12 is slightly longer than the separation distance between the beam 23 and the beam 25. Therefore, the second floor panel 42 can be bridged between the beam 23 and the beam 25.

  Further, the length of the second floor panel 42 in the longitudinal direction is about half of the length of the first floor panel 41 in the longitudinal direction. The width of the second floor panel 42 is substantially the same as the width of the first floor panel 41. Therefore, the area of the second floor panel 42 is about half of the area of the first floor panel 41. The thickness of the second floor panel 42 is substantially the same as the thickness of the first floor panel 41. Therefore, the weight of the second floor panel 42 is about half of the weight of the first floor panel 41. The weight of the second floor panel 42 determines the hardness of the second elastic member 32 on which the second floor panel 42 is placed. Details will be described later.

  The third floor panel 43 is arranged in the small areas 53, 54 and 56. In the illustrated example, two third floor panels 43 are arranged in the small area 53, one third floor panel 43 is arranged in the small area 54, and two third floor panels 43 are arranged in the small area 56. Has been.

  The third floor panel 43 has a square plate shape in which the length in the first direction 11 is equal to the length in the second direction 12 and the vertical direction 13 is the thickness direction. The length of one side of the third floor panel 43 is larger than the separation distance between the beam 22 and the beam 26, the separation distance between the beam 26 and the beam 27, and the separation distance between the beam 21 and the beam 28. Slightly long. As described above, the separation distance between the beam 22 and the beam 26, the separation distance between the beam 26 and the beam 27, and the separation distance between the beam 21 and the beam 28 are the same. Therefore, the third floor panel 43 can be bridged between the beam 22 and the beam 26, the beam 26 and the beam 27, and the beam 21 and the beam 28.

  The length of one side of the third floor panel 43 is about ¼ of the length of the first floor panel 41 in the longitudinal direction, and the width of the third floor panel 43 is the width of the first floor panel 41. Is almost the same. Therefore, the area of the third floor panel 43 is about 1/4 of the area of the first floor panel 41. The thickness of the third floor panel 43 is substantially the same as the thickness of the first floor panel 41. Therefore, the weight of the third floor panel 43 is about ¼ of the weight of the first floor panel 41. The weight of the third floor panel 43 determines the hardness of the third elastic member 33 on which the third floor panel 43 is placed. Details will be described later.

  The fourth floor panel 44 is disposed in the small area 54. In the illustrated example, two fourth floor panels 44 are arranged in the small area 54. The fourth floor panel 44 has a rectangular plate shape in which the second direction 12 is the longitudinal direction, the first direction 11 is the width direction, and the vertical direction 13 is the thickness direction. The length of the fourth floor panel 44 in the second direction 12 is slightly longer than the separation distance between the beam 26 and the beam 27. Therefore, the fourth floor panel 44 can be bridged between the beam 26 and the beam 27.

  The length of the fourth floor panel 44 in the longitudinal direction is about ¼ of the length of the first floor panel 41 in the longitudinal direction. The width of the fourth floor panel 44 is about half of the width of the first floor panel 41. Therefore, the area of the fourth floor panel 44 is about 1/8 of the area of the first floor panel 41. The thickness of the fourth floor panel 44 is substantially the same as the thickness of the first floor panel 41. Therefore, the weight of the fourth floor panel 44 is about 1/8 of the weight of the first floor panel 41. The weight of the fourth floor panel 44 determines the hardness of the fourth elastic member 34 on which the fourth floor panel 44 is placed. Details will be described later.

  As shown in FIG. 5, the floor panels 41 to 44 are placed on elastic members 31 to 34 disposed on the beams 21 to 28. The details will be described below.

  The elastic members 31 to 34 are all the same shape. Specifically, the elastic members 31 to 34 have a plate shape whose upper surface is rectangular. That is, the elastic members 31 to 34 have almost the same area of the upper surface supporting the floor panel 40 and all have the same thickness. The elastic members 31 to 34 are made of synthetic resin such as polyurethane or rubber, for example.

  The first floor panel 41 is placed on the first elastic member 31. The second floor panel 42 is placed on the second elastic member 32. A third floor panel 43 is placed on the third elastic member 33. A fourth floor panel 44 is placed on the fourth elastic member 34.

  As shown in FIGS. 3 and 4, the first elastic member 31 is disposed at a portion of the beam 21 and the beam 22 where the first floor panel 41 is disposed (a central portion and a right portion in the first direction 11 in the drawing). The upper surfaces 21A and 22A of the beams 21 and 22 are adhered to each other by a double-sided tape, an adhesive, or the like. Specifically, the first elastic member 31 is disposed such that the lower edge along the longitudinal direction coincides with the edge on the region 52 side of the upper surfaces 21A and 22A, and is attached to the upper surfaces 21A and 22A.

  Further, two (a pair) of first elastic members 31 are attached to each end of the first floor panel 41 in the longitudinal direction (second direction 12 in the figure). Since the four first floor panels 41 are arranged, eight (four by two) first elastic members 31 are bonded to the beam 21 and the beam 22, respectively. The first floor panel 41 is placed on four first elastic members 31 that are separated from each other in the first direction 11 and the second direction 12. That is, the first floor panel 41 is supported by the first elastic member 31 at four corners (four-point support).

  In the illustrated example, there are places where the two first elastic members 31 are arranged adjacent to each other in the first direction 11, but the two adjacent first elastic members 31 are one continuous first One elastic member may be used. The same applies to elastic members 32 to 34 described later.

  The 2nd elastic member 32 is arrange | positioned in the part in which the 2nd floor panel 42 in the beam 23 and the beam 25 is arrange | positioned, and is affixed on the upper surfaces 23A and 25A of the beams 23 and 25 with a double-sided tape, an adhesive agent, etc. Specifically, the second elastic member 32 is disposed such that the lower edge along the longitudinal direction coincides with the edge on the small region 55 side of the upper surfaces 23A and 25A, and is attached to the upper surfaces 23A and 25A.

  Further, two (a pair of) second elastic members 32 are attached to each end of the second floor panel 42 in the first direction 11. Since one second floor panel 42 is disposed, two (one sheet × two) third elastic members 33 are bonded to the beam 23 and the beam 25, respectively. The second floor panel 42 is placed on four second elastic members 32 that are separated from each other in the first direction 11 and the second direction 12. That is, the second floor panel 42 is supported by the second elastic member 32 at four corners (four-point support).

  The 3rd elastic member 33 is arrange | positioned in the place where the 3rd floor panel 43 is arrange | positioned in the beams 21, 22, 26, 27, 28, and the upper surface 21A of the beams 21, 22, 26, 28 by a double-sided tape, an adhesive, etc. , 22A, 26A, and 28A. Specifically, the third elastic member 33 is arranged such that the lower edge along the longitudinal direction coincides with the edge of the upper surface 21A, 22A, 26A, 28A on the small region 53, 54, 56 side, and the upper surface 21A, 22A, It is attached to 26A and 28A.

  Further, two (a pair of) third elastic members 33 are attached to each end of the third floor panel 43 in the second direction 12. More specifically, two (one sheet × two) third elastic members 33 are adhered to the beam 21, and four (two sheets × two) third elastic members 33 are adhered to the beam 22. 6 pieces (3 pieces × 2 pieces) of the third elastic members 33 are attached to the beam 26, and 2 pieces (one piece × 2 pieces) of the third elastic members 33 are attached to the beam 27, Two pieces (one piece × two pieces) of third elastic members 33 are attached to the beam 28.

  The third floor panel 43 is placed on four third elastic members 33 that are separated from each other in the first direction 11 and the second direction 12. That is, the third floor panel 43 is supported by the third elastic member 33 at four corners (four-point support).

  The 4th elastic member 34 is mounted in the part in which the 4th floor panel 44 is arrange | positioned in the beam 26 and the beam 27, and is affixed on the upper surfaces 26A and 27A of the beams 26 and 27 with a double-sided tape, an adhesive agent, etc. . Specifically, the fourth elastic member 34 is disposed such that the lower edge along the longitudinal direction coincides with the edge on the small region 54 side of the upper surfaces 26A and 27A, and is adhered to the upper surfaces 26A and 27A.

  Further, two (a pair) of the fourth elastic members 34 are arranged for each end of the fourth floor panel 44 in the first direction 11. Since the four fourth floor panels 44 are arranged, four (two by two) fourth elastic members 34 are placed on the beam 26 and the beam 27, respectively. The fourth floor panel 44 is placed on the four fourth elastic members 34. That is, the fourth floor panel 44 is reliably supported by the fourth elastic member 34 at the four corners (four-point support).

  The hardness of the elastic members 31 to 34 will be described in detail below. The hardness of the elastic members 31 to 34 is defined by, for example, Young's modulus (longitudinal elastic modulus) or bulk elastic modulus (bulk elastic modulus).

  The hardness of the elastic members 31 to 34 is changed according to the weight of the floor panel 40 to be placed. Specifically, as shown in FIG. 6, the hardness of the first elastic member 31 on which the heaviest first floor panel 41 is placed is “A”, and the hardness of the second elastic member 32 is “1 /”. 2A ". As described above, the weight of the second floor panel 42 supported by the second elastic member 32 is about half of the weight of the first floor panel 41. The hardness of the second elastic member 32 is “½ A” in proportion to the hardness of the first elastic member 31. That is, the hardness of the second elastic member 32 that supports only half the weight of the first elastic member 31 is ½ of the hardness of the first elastic member 31.

  Similarly, the hardness of the third elastic member 33 that supports the third floor panel 43, which is ¼ of the weight of the first floor panel 41, is ¼ of the hardness of the first elastic member 31 “1 / 4A. It is said that. Further, the hardness of the fourth elastic member 34 that supports the fourth floor panel 44 that is 1/8 the weight of the first floor panel 41 is “1 / 8A” that is 1/8 of the hardness of the first elastic member 31. It is said that.

  As described above, the ratio between the hardness (A) of the first elastic member 31 and the area (B) of the first floor panel 41 is equal to the hardness (1 / 2A) of the second elastic member 32 and the second floor panel 42. It is the same as the ratio with the area (1 / 2B), and is the same as the ratio between the hardness (1 / 4A) of the third elastic member 33 and the area (1 / 4B) of the third floor panel 43, and Moreover, it is the same as the ratio between the hardness (1 / 8A) of the fourth elastic member 34 and the area (1 / 8B) of the fourth floor panel 44. That is, the hardness of the elastic members 31 to 34 is set according to the area (weight) of the floor panel 40 to be supported so that the above-described ratio is the same.

  The elastic members 31 to 34 are adjusted in hardness, for example, by changing the firing rate (density) or by changing the material or grade (material distribution).

  The elastic members 31 to 34 are color-coded according to hardness. For example, the first elastic member 31 having a hardness of “A” is made red, the second elastic member 32 having a hardness of “½A” is made brown, and the third elasticity having a hardness of “¼A”. The member 33 is made green, and the fourth elastic member 34 having a hardness of “1 / 8A” is made black.

[Floor construction method]
Below, the floor construction method 60 which is the construction method of the floor structure 10 is demonstrated. As shown in FIG. 7, the floor construction method 60 includes a first step 61 and a second step 62.

  The 1st process 61 is a process of sticking elastic members 31-34 to beam 20 in the 1st place which is a factory or a warehouse where beam 20 is manufactured. The elastic members 31 to 34 are attached to the individual beams 20 based on the design specifications of the building. In the example of FIG. 4, eight first elastic members 31 and four third elastic members 33 are attached to the beams 21 and 22, and two second elastic members 32 are attached to the beams 23 and 25. The six third elastic members 33 and the four fourth elastic members 34 are attached to the beam 26, and the two third elastic members 33 and the four fourth elastic members 34 are attached to the beam. 27, and four third elastic members 33 are attached to the beam 28.

  Here, the elastic members 31 to 34 are color-coded according to hardness. For example, the first elastic member 31 is red, the second elastic member 32 is brown, the third elastic member 33 is green, and the fourth elastic member 34 is black.

  The plurality of beams 20 and floor panels 41 to 44 to which the elastic members 31 to 34 are adhered are carried to the building site.

  The second step 62 is a step in which the floor structure 10 (FIG. 1) is constructed by the carried beam 20 and the floor panels 41 to 44.

  More specifically, the transported beams 20 are assembled and welded according to the design specifications to construct the floor beam 14 (FIG. 2). After the floor beam 14 is constructed, the floor panel 40 is placed on the elastic members 31 to 34 (FIG. 4). Specifically, the first floor panel 41 is placed on the first elastic member 31, the second floor panel 42 is placed on the second elastic member 32, and the third floor panel 43 is placed on the third elastic member 33. The fourth floor panel 44 is placed on the fourth elastic member 34. The floor structure 10 is constructed by the floor beam 14, the elastic members 31 to 34, and the floor panels 41 to 44.

[Effect]
In the present embodiment, the second elastic member 32 having a smaller hardness than the first elastic member 31 supports the second floor panel 42 that is lighter than the first floor panel 41. Therefore, the second elastic member 32 is less likely to be compressed beyond an allowable value, and can efficiently attenuate or reduce the frequency (hereinafter referred to as attenuation) of the vibration of the second floor panel 42. . As a result, performance such as vibration damping is enhanced.

  Moreover, since the shape of the elastic members 31-34 is the same, component management is easy. Moreover, since the shape of the elastic members 31-34 is the same, it is not necessary to change the attachment direction of the elastic members 31-34 according to a shape, As a result, construction of the floor structure 10 becomes easy. That is, in the present embodiment, by maintaining the same shape of the elastic members 31 to 34 and changing the hardness, maintenance of workability of the floor structure 10 and improvement of performance such as vibration damping are realized.

  Further, since the elastic members 31 to 34 have the same shape and different hardness, the elastic members 31 to 34 cannot be identified by the shape. In the present embodiment, the elastic members 31 to 34 are color-coded according to hardness. Therefore, the worker can identify the hardness of the elastic members 31 to 34 by the color. That is, in this embodiment, by changing the hardness by making the shape of the elastic members 31 to 34 the same, the performance such as workability and vibration damping is improved, and the resulting problem of “difficult to identify” This is solved by color-coding 31-34.

  Moreover, since the elastic members 31-34 are arrange | positioned at the both ends of the longitudinal direction of the floor panel 40, the floor panel 40 can be supported reliably. Furthermore, since the elastic members 31 to 34 are disposed at the four corners of the floor panel 40, the floor panel 40 can be reliably supported.

  The hardness of the elastic members 31 to 34 is set according to the area (weight) of the floor panel 40 to be supported so that the ratio of the hardness of the elastic members 31 to 34 and the area of the floor panel 40 is the same. Therefore, the hardness of the elastic members 31 to 34 becomes an appropriate value. As a result, the performance such as attenuation of the floor structure 10 is further enhanced.

  In the floor construction method 60 of the present embodiment, the elastic members 31 to 34 are attached to the beam 20 at a place (first place) other than the second place which is a building site. 31 to 34 are not used by mistake. That is, in this embodiment, by changing the hardness by making the shape of the elastic members 31 to 34 the same, the performance such as workability and vibration damping is improved, and the resulting problem of “difficult to identify” This is solved by sticking 31 to 34 to the beam 20 in a factory or warehouse.

  Moreover, in the floor construction method 60 of this embodiment, the elastic members 31-34 are color-coded according to hardness. Therefore, for example, when an operator sticks the elastic members 31 to 34 to the beam 20 in a factory or a warehouse, even if the operator sticks the type by mistake, the error can be found on site. Even if some of the elastic members 31 to 34 are accidentally peeled off during the transportation of the beam 20, the worker can reattach the elastic members 31 to 34 at the construction site. That is, it is not necessary to transport the beam 20 from which the elastic members 31 to 34 have been peeled off again to a factory or the like. As a result, the workability of the floor structure 10 is improved.

[Modification 1 of Embodiment]
In the above-mentioned embodiment, the example using the elastic members 31-34 of four types of hardness according to the size (4 sizes) of the floor panel 40 was demonstrated. However, for the purpose of facilitating construction and component management, the types of elastic members according to the hardness may be limited to three types.

  The first elastic member 31 is used for a floor panel that is lighter than the first floor panel 41 and heavier than the second floor panel 42, and is lighter than the second floor panel 42 and heavier than the third floor panel 43. In contrast, the second elastic member 32 is used, and the third elastic member 33 is used for a floor panel lighter than the third floor panel 43. That is, for the floor panel 40 without the corresponding elastic members 31 to 33, the hardness of the elastic members 31 to 33 is determined on the assumption that the floor panel 40 is one stage heavy. For example, in the case of the above-described embodiment, the fourth floor panel 44 is supported by the third elastic member 33 used instead of the fourth elastic member 34.

[Effect]
Since the types of the elastic members 31 to 33 due to the hardness are limited to three types, the construction becomes easy and the parts management becomes easy.

  Further, for the floor panel 40 without the corresponding elastic members 31 to 33, the hardness of the elastic members 31 to 33 is determined on the assumption that the floor panel 40 is one step heavy. There is no compression beyond the allowable value.

[Modification 2 of the embodiment]
In the second modification, as shown in FIG. 8, an example in which the beam 21 includes the receiving metal 15 will be described. Note that configurations other than those described below are the same as those in the embodiment.

  The beam 21 is provided with a pillar (not shown) in the shaded area 16 of FIG. That is, the elastic members 31 to 34 cannot be disposed in the region 16. The receiving metal 15 is provided in the vicinity of the region 16 and supports the elastic member 30A.

  If it demonstrates concretely, the receiving metal fitting 15 will be arrange | positioned at the side used as the inner side of the floor beam 14, and will be firmly fixed to the upper flange of the beam 21 which is H-shaped steel by welding. The receiving metal 15 is a metal plate, for example. The upper surface of the receiving metal 15 is flush with the upper surface of the beam 21. That is, the receiving metal 15 supports the elastic member 30A at the same height as the other elastic members 30B placed on the beams 21 to 28. Therefore, all the elastic members 30A and 30B have the same height. Note that the elastic member 30 </ b> A is an elastic member disposed on the receiving metal 15, and the elastic member 30 </ b> B is an elastic member disposed on the beam 20.

  The bracket 15 is mounted with a pair of elastic members 30 </ b> A that are separated from each other in the first direction 11. The elastic member 30A is adhered to the upper surface of the receiving metal fitting 15 with a double-sided tape, an adhesive, or the like. In addition, the hardness of elastic member 30A, 30B is made into the hardness match | combined with the hardness of the floor panels 41-44 mounted similarly to the above-mentioned embodiment.

  The length of the first floor panel 41A in the second direction 12 is slightly shorter than the length of the first floor panel 41B. Specifically, the length of the first floor panel 41A is shortened so as not to interfere with the pillar. The first floor panel 41A is shortened by cutting a standard floor slab or ALC, for example.

  The first floor panel 41A is placed on the two elastic members 30A and the two elastic members 30B. That is, the first floor panel 41A is supported by the elastic members 30A and 30B at the four corners (four-point support).

  Similarly, the length of the third floor panel 43A in the second direction 12 is slightly shorter than the length of the third floor panel 43B. Specifically, the length of the third floor panel 43A is shortened to the extent that it does not interfere with the pillar. The third floor panel 43A is placed on the two elastic members 30A and the two elastic members 30B. That is, the third floor panel 43A is supported by the elastic members 30A and 30B at the four corners (four-point support).

[Effect]
In the second modification, the receiving metal 15 is provided on the beam 21, so that the floor panels 41A and 43A can be reliably supported even if the beam 21 is provided with a column.

[Other variations of the embodiment]
In the above-described embodiment, the example in which the elastic members 31 to 34 are attached to the beam 20 in the first place other than the construction site has been described. However, the elastic members 31 to 34 may be attached to the beam 20 or the receiving bracket 15 at the construction site.

  In the above-described embodiment, the elastic members 31 to 34 are described as having the same shape, but the elastic members 31 to 34 have different shapes (upper surface shapes) as long as the upper surface area is the same. It may be.

DESCRIPTION OF SYMBOLS 10 ... Floor structure 11 ... 1st direction 12 ... 2nd direction 13 ... Vertical direction 14 ... Floor beam 20 ... Beam 31 ... 1st elastic member 32 ... 2nd elastic member 33 ... 3rd elastic member 34 ... 4th elastic member 40 ... Floor panel 41 ... 1st floor panel 42 ... 2nd floor panel 43 ... 3rd floor panel 44 ... 4th floor panel 60 ... Floor construction method 61 ... 1st process 62 ... 2nd process

Claims (10)

With a beam,
A first floor panel supported by the beam;
A second floor panel supported by the beam;
A first elastic member that is located between the beam and the first floor panel and elastically deforms at least in the vertical direction;
A second elastic member positioned between the beam and the second floor panel and elastically deforming at least in the vertical direction;
The thickness of the second floor panel is the same as the thickness of the first floor panel, and the area of the upper surface is smaller than the area of the upper surface of the first floor panel,
The thickness of the second elastic member is the same as the thickness of the first elastic member, the area of the upper surface thereof is the same as the area of the upper surface of the first elastic member, and the hardness thereof is the first elastic member. Floor structure smaller than the hardness of the member.   The floor structure according to claim 1, wherein the shape of the first elastic member and the shape of the second elastic member are the same.   The floor structure according to claim 1 or 2, wherein the first elastic member and the second elastic member are different in color. The upper surface of the first floor panel and the upper surface of the second floor panel are each rectangular.
The first elastic member is located below both ends of the side along the longitudinal direction of the upper surface of the first floor panel,
The floor structure according to any one of claims 1 to 3, wherein the second elastic member is positioned below both ends of a side along the longitudinal direction of the upper surface of the second floor panel. The upper surface of the first floor panel and the upper surface of the second floor panel are each rectangular.
The beam is located below a short side along the short direction of each upper surface of the first floor panel and the second floor panel,
The first elastic member is positioned below both ends of the short side of the first floor panel, and the second elastic member is positioned below both ends of the short side of the second floor panel. The floor structure according to any one of claims 1 to 4.   The ratio between the hardness of the first elastic member and the area of the upper surface of the first floor panel is the same as the ratio of the hardness of the second elastic member and the area of the upper surface of the second floor panel. The floor structure according to any one of the above. A third floor panel whose thickness is the same as the thickness of the first floor panel and whose upper surface area is smaller than the upper surface area of the second floor panel;
It is located between the beam and the third floor panel, is elastically deformed at least in the vertical direction, the thickness thereof is the same as the thickness of the first elastic member, and the area of the upper surface thereof is the first The floor structure according to any one of claims 1 to 6, further comprising a third elastic member having the same area as the upper surface of the second elastic member and having a hardness smaller than that of the second elastic member. The thickness of the first elastic member is the same, the area of the upper surface is twice the area of the upper surface of the first elastic member, the same hardness as the first elastic member, and the two adjacent first A first connecting elastic member that abuts and supports the floor panel at an area half of the upper surface;
  The thickness of the second elastic member is the same, the area of the upper surface is twice the area of the upper surface of the second elastic member, the same hardness as the second elastic member, and the two adjacent second The floor structure according to claim 1, further comprising at least one of a second connecting elastic member that abuts and supports the floor panel at an area half of the upper surface. At least one of the first elastic member that is elastically deformed at least in the vertical direction and the second elastic member that is less than the hardness of the first elastic member and is elastically deformed at least in the vertical direction at the first place is the beam. A first step to be pasted;
In a second place, which is a construction site different from the first place, a plurality of the beams are combined, a first floor panel is disposed above the first elastic member, and the second floor is located above the second elastic member. And a second step in which a second floor panel having an upper surface with an area smaller than the area of the upper surface of the one floor panel is disposed. The floor construction method according to claim 9 , wherein the first elastic member and the second elastic member are different in color.

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