JP2019065668A - Floor structure and construction method of the same - Google Patents

Abstract

To provide a floor structure capable of widening the range of material selection of face materials and suppressing an increase in construction cost by avoiding direct application of load from the upper member to the face material placed on the lower support member, and its construction method.SOLUTION: A floor structure 1 includes ceiling surface materials 6 and 7, a vertical floor beam 3, an upper column 8, and a spacer 9. The ceiling surface materials 6, 7 are provided between the lower floor and the upper floor, and the vertical floor beam 3 supports the ceiling surface materials 6, 7 from the lower floor side. A spacer 9 is interposed between the vertical floor beam 3 and the upper column 8, and abuts on an upper surface 3a of the vertical floor beam 3 and a lower end surface 8a of the upper column 8, respectively. The height dimension of the spacer 9 is larger than the thickness dimension of the ceiling surface materials 6, 7, and a gap Gis formed between the upper surfaces 6a, 7a of the ceiling surface materials 6, 7 and the lower end surface 8a of the upper column 8. The spacer 9 is formed of a metal material and has higher compressive strength than the vertical floor beam 3 and the upper column 8.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a floor structure and a method of constructing the floor structure.

  In multi-story wooden buildings, floor beams are fixed on the lower floor columns, and ceiling materials are fixed on the floor beams. In addition, the upper pillar of the upper floor is erected on the floor beam. Patent Document 1 discloses a floor structure having floor beams, ceiling materials, and upper columns.

  Patent Document 1 discloses a floor structure using a tool for fixing a floor beam and an upper column. The jig has a structure in which a pipe-like portion and a flat-plate-like portion are joined, and the pipe-like portion is fitted in a recess provided in the floor beam, and the flat-plate-like portion is provided on the upper column It is fitted into the slit which is fixed to the floor beam and the upper column by the pin member.

  In the floor structure of Patent Document 1, only the flat portion of the jig is projected above the upper surface of the floor beam, whereby the end faces of adjacent ceiling panels are the plate thickness of the flat portion It has a structure spaced apart and closely spaced.

Unexamined-Japanese-Patent No. 2003-268886

  However, in the floor structure disclosed in Patent Document 1, since the ceiling surface material is sandwiched between the floor beam and the upper column, it is necessary to use a plate material having compressive resistance as the ceiling surface material. It is necessary and there is room for improvement in terms of material selection and construction costs. That is, in the floor structure of Patent Document 1, the load from the upper floor is also applied to the ceiling material through the upper column, and the ceiling material is compressed if the ceiling material having a compressive resistance against this is not used. It can cause deformation.

  The present invention has been made to solve the problems as described above, in which the load from the upper upper member is applied to the face material placed on the lower lower support member. It is an object of the present invention to provide a floor structure capable of widening the range of material selection of facing materials and suppressing an increase in construction cost and providing a construction method thereof.

  A floor structure according to an aspect of the present invention is a floor structure provided between a lower floor and an upper floor, which includes a face material provided between the lower floor and the upper floor, and a pillar or a beam. A lower support member for supporting the face material from the lower floor side, a pillar or a beam, an upper member disposed above the lower support member, an upper surface of the lower support member and the upper member And a spacer interposed between the lower surface of the lower support member and the lower surface of the lower support member, and the edge of the lower surface of the lower support member is the lower end of the lower surface of the lower support member. The lower support member and the upper member overlap each other in a plan view from the mounting direction of the face member relative to the support member, and are disposed around the spacer, and the face member relative to the lower support member In the mounting direction of the lower support, which is the height dimension of the spacer Spacing between the upper surface of the wood and the lower surface of the upper member is greater than the thickness of the surface material, the spacer has a higher compressive strength than the lower support member and the upper member.

  In the floor structure according to the above aspect, a spacer having a height dimension higher than the thickness dimension of the face material is interposed in a region where the lower support member and the upper member overlap in the plan view (between the lower support member and the upper member). Since it is inserted, a gap can be made between the upper member and the face material. And, the face material edge is disposed around the spacer in a region where the lower support member and the upper member overlap in the plan view, so that the face material is not sandwiched between the lower support member and the spacer It has become. Therefore, the load applied from the top of the building through the upper member is not applied to the face material, the range of material selection for the face material can be broadened, and the material cost of the face material can be reduced. .

  Further, in the floor structure according to the above aspect, since the spacer having higher compressive strength than the lower support member and the upper member is adopted, the spacer is prevented from being compressed and deformed even by long-term use, and the upper member It is possible to suppress the load from being applied to the face material.

  Furthermore, in the floor structure according to the above aspect, since the edge of the facing is disposed on the upper surface of the lower support member, the edge (edge) of the facing is not visible from the lower floor side (bottom There is no gap between the support member and the face material), and the design is excellent. Thereby, in the floor structure which concerns on the said aspect, it is possible to set it as a representation specification. Here, even when the edges of a plurality of face materials are disposed around one spacer, the edges of the face material will be disposed on the upper surface of the lower support member, as described above. It can be made invisible from the lower floor side, and high design can be realized.

  Therefore, in the floor structure according to the above aspect, it is possible to select the material of the facing material by avoiding the load from the upper upper member being applied to the facing material placed on the lower lower support member. The range can be broadened and the rise in construction costs can be suppressed.

  The floor structure according to another aspect of the present invention is the above aspect, wherein, on the upper surface of the lower support member, an edge of the surface material makes a gap from a side of the spacer. It is arranged in the

  In the floor structure according to the above aspect, since the facing is arranged such that the edge of the facing is spaced from the side of the spacer, the facing may be precut in advance. Even if there is a dimensional error at the time of precut, the dimensional error can be absorbed by the gap. Therefore, in the floor structure according to the above aspect, even when using a face material having a dimensional error in a predetermined range, the necessity for rework (in-kind matching) at the site is reduced, and the construction cost can be reduced. it can.

  The floor structure according to another aspect of the present invention is the above aspect, wherein the spacer is cylindrical and has a cylindrical member having an opening on the upper floor side and the lower floor side, and an upper floor of the cylindrical member. The upper plate member joined so as to cover the opening on the side, and the lower plate member joined so as to cover the opening on the lower floor side of the cylindrical member, and the upper plate member is the upper member The lower surface of the lower plate member is in contact with the upper surface of the lower support member.

  In the floor structure according to the above aspect, since the spacer is configured by the cylindrical member whose both openings are covered by the upper plate member and the lower plate member, the compressive load between the lower support member and the upper member In addition, by using the cylindrical member, the inside can be made hollow, and weight reduction can be achieved as compared with the case of using a solid member.

  In the floor structure according to the above aspect, the upper plate member is in contact with the lower surface of the upper member, and the lower plate member is in contact with the upper surface of the lower support member. The contact area between the lower support and each lower surface can be increased, and the load from the upper part of the building via the upper support is suppressed from reducing the spacer on the upper support lower surface and the lower support lower surface. Ru.

  The floor structure according to another aspect of the present invention is the above aspect, and the spacer is configured such that the lower support member and the upper member overlap in a plan view from the mounting direction of the face material to the lower support member. It is arranged to fit within the area.

  In the floor structure according to the above aspect, the spacer is disposed so as to be contained in the overlapping area of the lower support member and the upper member in plan view, so that interference with other members in the area around the area is avoided. can do. Further, when viewed from the lower floor side, the spacer can not be seen, so the design is excellent.

  The floor structure according to another aspect of the present invention is the above aspect, and is disposed in a state in which the lower support member and the upper member are connected in the mounting direction of the face material relative to the lower support member. And a tension resistant member for resisting a tensile force between the lower support member and the upper member, wherein the spacer is provided with the tension resistant member in the mounting direction of the face member relative to the lower support member. The insertion part which allows insertion is provided, and the said tension-resistant member is arrange | positioned in the state which penetrated the said insertion part of the said spacer.

  In the floor structure according to the above aspect, since the lower support member and the upper member are connected by the tension resistant member, a tensile force that separates each other acts between the lower support member and the upper member. Also, the drag of the pull resistant member maintains the connection between the lower support member and the upper member. Therefore, the floor structure according to the above aspect is excellent in maintaining the connection between the lower support member and the upper member.

  Further, in the floor structure according to the above aspect, the spacer is provided with the insertion portion, and the tension resistant member is disposed to be inserted through the insertion portion, so the lower support member and the upper member are planarly viewed. In the overlapping area, the spacer and the tension resistant member can be disposed with high space efficiency, and high design can be realized by making the tension resistant member invisible from the lower floor side. it can.

  In the method of installing a floor structure according to one aspect of the present invention, a step of disposing a lower support member which is a column or a beam, and a partial region of the upper surface of the lower support member with respect to the upper surface of the lower support member Mounting the spacer in a state in which the lower surface is in contact, mounting the upper member, which is a pillar or a beam, in a state in which the lower surface is in contact with the upper surface of the spacer The edge is placed on the upper surface of the lower support member, and the edge is an area where the lower support member and the upper member overlap in a plan view from the mounting direction of the upper member with respect to the lower support member. And disposing the face material so as to be positioned around the spacer, and in the step of placing the spacer, the face material in the mounting direction of the face material relative to the lower support member. Height greater than the thickness dimension of And it has a law, using a spacer having a higher compressive strength than the lower support member and the upper member.

  In the construction method of the floor structure according to the above aspect, in the step of mounting the spacer, since the spacer having a height dimension higher than the thickness dimension of the face material is used, the upper member is mounted on the spacer, and the lower portion When the face material is placed on the upper surface of the support member, a gap can be made between the upper member and the face material. Therefore, it is possible to construct a floor structure in which the load applied from the top of the building through the upper member does not apply to the facing.

  Further, in the method of installing a floor structure according to the above aspect, in the step of mounting the spacer, the spacer having a compressive strength higher than that of the lower support member and the upper member is used. It is possible to construct a floor structure that does not cause

  Furthermore, in the construction method of the floor structure according to the above aspect, in the step of arranging the face material, the edge of the face material is on the upper surface of the lower support member, and the lower support member and the upper member overlap in the plan view. Since the arrangement is made in the area, it is possible to construct a floor structure in which the edge of the face material can not be seen from the lower floor side (there is no gap between the lower support member and the face material). Therefore, in the construction method of the floor structure which concerns on the said aspect, it is possible to construct the floor structure excellent in the designability, and it is possible to construct the floor structure of an expression specification.

  Therefore, in the construction method of the floor structure according to the above aspect, it is possible to prevent the load from the upper upper member from being applied to the face material placed on the lower lower support member, and the surface material The range of material selection is wide, and it is possible to construct a floor structure that can suppress an increase in construction cost.

  The floor structure installation method according to another aspect of the present invention is the above aspect, and in the step of disposing the facing member, the edge of the facing member is the side of the spacer on the upper surface of the lower support member. The face material is disposed in a state where a gap is formed with respect to the part, and the face material is fixed to the lower support member.

  In the construction method of the floor structure according to the above aspect, in the step of arranging the facing member, the facing member is disposed in a state where the edge of the facing member has a gap from the side portion of the spacer. In the case of precut, even if there is a dimensional error at the time of precut, the dimensional error can be absorbed by the gap to the side of the spacer. Therefore, in the construction method of the floor structure according to the above aspect, even when using a face material having a dimensional error in a predetermined range, the necessity of reprocessing at the site is reduced, and the construction cost is reduced. Can.

  The floor structure installation method according to another aspect of the present invention is the above aspect, and in the step of mounting the upper member, the method extends in the mounting direction of the surface material relative to the lower support member, and The upper member is fixed to the lower support member using a pull-resistant member that resists a pulling force between the upper member and the upper member.

  In the construction method of the floor structure according to the above aspect, since the upper member is fixed to the lower support member using the tension resistant member, the lower support member and the upper member are separated from each other. Even when a tensile force is applied, it is possible to construct a floor structure in which the connection between the lower support member and the upper member is maintained by the resistance of the tensile member.

  In each of the above aspects, the range of material selection of the face material is broadened by avoiding application of a load from the upper upper member to the face material placed on the lower lower support member. And increase in construction cost can be suppressed.

It is a model perspective view showing a part of floor structure concerning an embodiment. It is a schematic front view which looked at the A section of FIG. 1 from the-Y side. It is the model top view which looked at the A section of FIG. 1 from + Z side. (A) is a model top view which shows the structure of a spacer, (b) is a model side view which shows the structure of a spacer. (A) is a model front view which shows the structure of a tenon pipe, (b) is a model side view which shows the structure parent of a tenon pipe. It is a VI-VI section of Drawing 2, and is a schematic cross section showing the structure concerning fixation of a tenon pipe to a vertical floor beam. (A) is process drawing which shows the construction method of the floor structure which concerns on embodiment, (b) is process drawing which shows the construction method which concerns on modification 1. FIG. It is a model top view which shows the arrangement | positioning form of the ceiling surface material with respect to the lower pillar in the floor structure which concerns on the modification 2. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The form described below is an aspect of the present invention, and the present invention is not limited to the following form except for the essential configuration.

  In FIGS. 1 to 8, the + Z side indicates the upper floor side, and the −Z side indicates the lower floor side. Further, in FIGS. 1 to 8, the X direction is temporarily defined as the horizontal direction, and the Y direction is temporarily defined as the vertical direction.

[Embodiment]
1. Floor structure 1
The floor structure 1 according to the present embodiment will be described with reference to FIG.

  As shown in FIG. 1, the floor structure 1 includes a lower column 2, vertical floor beams 3, horizontal floor beams 4 and 5, ceiling materials 6 and 7, and an upper column 8. The lower column 2 extends in the Z direction on the -Z side (lower floor side). The vertical floor beam 3 is mounted on the upper end surface of the lower column 2 on the + Z side, and extends in the Y direction (vertical direction).

  The horizontal floor beam 4 is joined to the vertical floor beam 3 and extends from the junction with the vertical floor beam 3 toward the + X side. The horizontal floor beam (lower support member) 5 is joined to the vertical floor beam 3 and extends from the junction with the vertical floor beam 3 toward the −X side opposite to the horizontal floor beam 4 There is.

  In addition, in this embodiment, although the Z direction height of the vertical floor beam 3 and the horizontal floor beams 4 and 5 is made the same, it is not limited to this.

  The ceiling materials (face materials) 6 and 7 have their respective edges mounted on the upper surfaces of the vertical floor beams 3 and the horizontal floor beams 4 and 5, and the vertical floor beams 3 and the horizontal floor beams 4, It is fixed to five. In addition, although only the ceiling facing materials 6 and 7 of 2 sheets are extracted and shown in FIG. 1, in the floor structure 1, three or more ceiling facing materials are provided.

  The upper column (upper member) 8 is mounted on the upper surface of the vertical floor beam 3 so as to overlap the lower column 2 in plan view from the Z direction, and is fixed to the vertical floor beam 3. The fixing structure of the upper column 8 to the vertical floor beam 3 will be described later.

2. Fixing structure of upper column 8 to vertical floor beam 3 and arrangement form of ceiling panel 6,7,16,17 Fixing structure of upper column 8 to vertical floor beam 3 and arrangement form of ceiling panel 6,7,16,17 Will be described with reference to FIGS. 2 and 3. 2 is a schematic front view showing a portion A of FIG. 1 as viewed from the -Y side, and FIG. 3 is a schematic plan view showing a portion A of FIG. 1 as viewed from the + Z side.

  As shown in FIG. 2, the floor structure 1 according to the present embodiment further includes a spacer 9, a tenon pipe 10, bolts 11, 12 and 13, and nuts 14 and 15. The tenon pipe (tension resistant member) 10 is a pipe-like member extending in the Z direction.

  The upper column 8 is provided with a recess 8b from the lower end surface (lower surface) 8a toward the + Z side, and a part of the tenon pipe 10 on the + Z side is fitted into the recess 8b. In the tenon pipe 10, a hole 10a is opened in a portion fitted into the recess 8b, and a bolt 11 is inserted through the hole 10a.

  The bolt 11 passes through the upper column 8 in the direction perpendicular to the paper surface. The tenon pipe 10 and the upper column 8 are fixed by the bolt 11 and a nut (not shown) screwed to the bolt 11.

  Similarly, the vertical floor beam 3 is provided with a recess 3b from the upper surface 3a toward the -Z side, and a part of the tenon pipe 10 on the -Z side is fitted into the recess 3b. In the tenon pipe 10, holes 10b and 10c are opened in portions fitted into the recess 3b, and bolts 12 and 13 are inserted through the holes 10b and 10c. A nut 14 is screwed into the bolt 12 and a nut 15 is screwed into the bolt 13 on the side of the vertical floor beam 3 on the −X side.

  Each of the vertical floor beams 3 penetrates in the X direction, and holes 3c and 3d which allow insertion of the bolts 12 and 13 are opened. The holes 3c and 3d are continuous with the recess 3b.

  The tenon pipe 10 and the vertical floor beam 3 are fixed by bolts 12, 13 and nuts 14, 15.

  The spacer 9 is interposed between the vertical floor beam 3 and the upper column 8. The upper surface and the lower surface of the spacer 9 are formed in a plane along a plane orthogonal to the Z-axis. The upper surface of the spacer 9 abuts on the lower end surface 8 a of the upper column 8 without any gap, and the lower surface abuts on the upper surface 3 a of the vertical floor beam 3 without a gap.

The edge of the ceiling panels 6, 7 is placed on the upper surface 3a of the vertical floor beam 3. As shown in FIG. 3, the corners of the ceiling panels 7, 7, 16, 17 are cut out (notches 6b, 7b, 16b, 17b). These notches 6b, 7b, 16b, the formation of 17b, ceiling material 6,7,16,17 is against the side of the spacer 9, the gap _G X, in a state of spaced _{G Y,} spacers It is arranged around 9 circumference.

The gaps G _X and G _Y are not necessarily gaps of a fixed size, but vary depending on the dimensional accuracy of the ceiling materials 6, 7, 16, and 17 and the processing accuracy of the notches 6b, 7b, 16b, and 17b. There is. That is, in consideration of the dimensional accuracy of the ceiling materials 6, 7, 16, 17 and the processing accuracy of the notches 6b, 7b, 16b, 17b, etc., the gaps G _X and G _Y have the spacer 9 and the ceiling material 6, It is set so that no stress is generated between the edges 7, 16 and 17.

Returning to FIG. 2, the upper surface 6a, 7a of the ceiling surface material 6 and 7, with respect to the lower end face 8a of the upper column 8 is arranged in a state in which a gap G _Z. This makes the height dimension in the Z direction of the spacer 9, that is, the distance between the upper surface 3a of the vertical floor beam 3 and the lower end surface 8a of the upper column 8 larger than the thickness dimension of the ceiling panels 6, 7 It is because In FIG. 2, although not shown, for the ceiling material 16 and 17, its upper surface against the lower end face 8a of the upper column 8 is arranged in a state in which a gap G _Z.

For even gap G _Z, not necessarily a gap of a certain size, may vary depending on the dimensional accuracy and dimensional accuracy of the spacer 9 of the ceiling material 6,7,16,17. That is, the gap _{G Z} is consideration of dimensional accuracy and dimensional accuracy of the spacer 9 of the ceiling surface material 6,7,16,17, upper surface 6a of the ceiling surface material 6,7,16,17, 7a the upper pillar 8 It is set so as not to contact the lower end face 8a.

3. Configuration of Spacer 9 The configuration of the spacer 9 will be described with reference to FIG. FIG. 4A is a schematic plan view showing the spacer 9 as viewed from the + Z side (the upper pillar 8 in FIG. 2), and FIG. 4B is a state as viewed from the -Y side of the spacer 9 It is a model side view shown by these.

  As shown in FIGS. 4A and 4B, the spacer 9 is a flat plate joined so as to cover the opening on the + Z side of the cylindrical member 91 and the cylindrical member 91 having openings on the + Z side and the −Z side. And the flat plate-like lower plate member 92 joined so as to cover the opening on the −Z side of the cylindrical member 91.

  In the present embodiment, the cylindrical member 91, the upper plate member 90, and the lower plate member 92 are formed using a metal material (for example, a steel plate such as SS400). For this reason, the spacer 9 has higher compressive strength than the vertical floor beam 3 and the upper column 8 made of wood.

  In the upper plate member 90 and the lower plate member 92, an opening 9a which penetrates the respective members 90 and 92 in the thickness direction is opened. The opening 9 a communicates the inner space 9 b, which is the inner space of the cylindrical member 91, with the outer space. The opening 9 a and the inner space 9 b of the spacer 9 become an insertion portion which allows the tenon pipe 10 to be inserted.

As shown in FIG. 4A, the X-direction dimensions of the upper plate member 90 and the lower plate member 92 in the spacer 9 are L _X , and the Y-direction dimension is L _Y. These dimensions L _X and L _Y are set to be smaller than the X-direction dimension (width) of the vertical floor beam 3 and the X-direction dimension and the Y-direction dimension of the upper column 8. In particular, with respect to the dimension L _X of the spacer 9 in the X direction, it is set such that the placement allowance of each edge of the ceiling materials 6, 7, 16, 17 is secured. By setting the dimensions L _X and L _Y in this manner, the spacer 9 is contained in the area where the upper column 8 and the vertical floor beam 3 overlap in a plan view from the Z direction.

In the present embodiment, the dimension L _X and the dimension L _Y are substantially the same (design dimensions are the same) (for example, 90 mm to 100 mm).

As shown in FIG. 4 (b), in the Z-direction, the dimension _{H 9} from the top surface 9c of the spacer 9 and the lower surface 9d, as described above, than the thickness dimension of the ceiling surface material 6,7,16,17 It is set large.

4. Configuration of Tenon Pipe 10 The configuration of the tenon pipe 10 will be described with reference to FIG. Fig.5 (a) is a model front view shown in the state which looked at tenon pipe 10 from the -Y side, FIG.5 (b) is a model side view shown in the state which looked at thin pipe 10 from the + X side .

  As shown in FIGS. 5A and 5B, the tenon pipe 10 is formed of a pipe having openings on the + Z side and the -Z side. The tenon pipe 10 is formed using a metal material (for example, a carbon steel pipe such as STK400). The outer diameter of the tenon pipe 10 is smaller than the inner diameter of the opening 9 a of the spacer 9.

  In the floor structure 1 according to the present embodiment, the tenon pipe 10 is configured to have a tensile strength that can withstand the assumed maximum tensile force between the vertical floor beam 3 and the upper column 8. , It is provided as a tension resistant member.

  The tenon pipe 10 has holes 10a and 10e opened in the + Z side. The holes 10a and 10e are holes that connect the inner space 10d of the tenon pipe 10 and the outer space.

  The hole 10 a and the hole 10 e are formed to have a diameter that allows the bolt 11 to be inserted. The hole 10a allows the insertion of the bolt 11 in the Y direction, and the hole 10e allows the insertion of the bolt 11 in the X direction. That is, in the tenon pipe 10 according to the present embodiment, when joining with the upper column 8, two insertion directions of the bolt 11 can be selected. In the present embodiment, the bolt 11 is inserted into the hole 10 a which is one of the holes.

  The tenon pipe 10 also has a hole 10 b and a hole 10 c that are opened in the portion on the −Z side. The holes 10 b and the holes 10 c are provided in a line in the Z direction. In the present embodiment, the hole 10 b and the hole 10 c are formed to have the same diameter, and allow insertion of the bolt 12 and the bolt 13 having the same screw diameter.

  In the tenon pipe 10 of the present embodiment, the holes 10b and 10c are opened to allow the bolts 12 and 13 to be inserted in the X direction.

5. Fixing Structure of Tenon Pipe 10 to Vertical Floor Beam 3 A specific fixing structure of the tenon pipe 10 to the vertical floor beam 3 will be described with reference to FIG. 6 is a schematic cross-sectional view showing a VI-VI cross section of FIG. In FIG. 6, only a part of the cross-sectional configuration is shown.

  As shown in FIG. 6, the bolts 12 used for fixing the vertical floor beam 3 and the tenon pipe 10 are each of the joint metal pieces 18 and 19 respectively disposed on the + X side and the −X side of the vertical floor beam 3. The holes 18a and 19a are also inserted.

  The metal joints 18, 19 are used to join the vertical floor beam 3 and the horizontal floor beams 4, 5 (only the horizontal floor beam 4 is shown in FIG. 6). Each of the bonding hardware 18 and 19 has a substantially U shape in a plan view from the Z direction. The holes 18a and 19a to be fixed to the vertical floor beam 3 are opened in the body portions 18d and 19d of the metal fittings 18 and 19, respectively.

  Further, holes 19b, 18c, 19b and 19c to be fixed to the horizontal floor beams 4 and 5 are opened in the arm portions 18e, 18f, 19e and 19f of the joint hardware 18 and 19, respectively.

  The bolt 12 used for fixing the tenon pipe 10 and the joint fittings 18 and 19 to the vertical floor beam 3 is the vertical floor beam 3 with the washer 20 sandwiched between the head 12 a and the body 18 d of the joint fitting 18. The hole 3c and the recess 3b of the hole 10 and the hole 10b of the tenon pipe 10 are inserted. Then, the nut 14 is screwed with the bolt 12 in a state in which the washer 21 is sandwiched between the nut 14 and the body 19 d of the metal joint 19.

  The horizontal floor beam 4 is provided with grooves 4a and 4b into which the arms 18e and 18f of the metal joint 18 are fitted and a recess 4c for avoiding interference with the head 12a of the bolt 12.

  Further, in the horizontal floor beam 4, a hole 4f is opened in the side portion 4d, a hole 4g is opened in the side 4e, and a hole 4i is opened in the middle convex portion 4h. The holes 4f, 4g, 4i are provided at positions matching the holes 18b, 18c of the metal joint 18 in the X direction.

  In FIG. 6, a cross floor beam 5 (not shown) also has a similar configuration. Further, the bolt 13 and its peripheral structure, which are also not shown, are the same as the bolt 12 and its peripheral structure.

6. Construction Method of Floor Structure 1 A construction method of the floor structure 1 will be described with reference to FIG. 7 (a) in addition to FIGS. Fig.7 (a) is process drawing which shows the construction method of the floor structure 1 which concerns on this embodiment.

  (I) As shown in FIG. 1, the vertical floor beams 3 extending in the Y direction are placed on the upper end surface of the lower column 2 and fixed to each other (step S1 in FIG. 7A).

  (Ii) As described with reference to FIG. 6, the tenon pipe 10 is fixed to the vertical floor beam 3 using the bolts 12 and 13 and the nuts 14 and 15 (step S2 in FIG. 7A).

  The vertical floor beam 3 is provided in advance with a recess 3 b and holes 3 c and 3 d.

  (Iii) As described with reference to FIG. 6, the horizontal floor beams 4 and 5 are fixed to the joint hardware 18 and 19 fixed to the vertical floor beam 3 (step S3 in FIG. 7A). The fixing of the joint hardware 18, 19 and the horizontal floor beams 4, 5 is carried out with respect to the holes 18b, 18c, 19b, 19c of the joint hardware 18, 19 and the holes 4f, 4g, 4i of the horizontal floor beams 4, 5 It is done by inserting a bolt and screwing a nut to the bolt.

  (Iv) As shown in FIG.2 and FIG.3, the spacer 9 is mounted on the upper surface 3a of the vertical floor beam 3 (step S4 of FIG. 7 (a)). At this time, the tenon pipe 10 previously attached to the vertical floor beam 3 is inserted through the opening 9 a and the inner space 9 b (insertion portion) of the spacer 9.

  The spacer 9 may be fixed to the vertical floor beam 3 with a screw or the like, but is not particularly fixed in the present embodiment.

(V) As shown in FIG. 1 and FIG. 3, ceiling surface materials 6, 7, 16, 17 are mounted so that the edge portion is mounted on the vertical floor beam 3 and the horizontal floor beams 4, 5 And secure using nails, screws, etc. (step S5 in FIG. 7A). The placement of the ceiling surface members 6, 7, 16, 17 with respect to the vertical floor beam 3 is performed such that the gaps G _X and G _Y are open with respect to the side portion of the spacer 9, as described with reference to FIG. However, the gaps G _X and G _Y are not fixed dimensions, and change due to dimensional errors of the ceiling materials 6, 7, 16, 17 and processing errors of the notches 6b, 7b, 16b, 17b, and the like. In other words, the gaps G _X and G _Y are gaps for absorbing dimensional errors of the ceiling materials 6, 7, 16, and 17 and processing errors of the notches 6b, 7b, 16b, and 17b.

  (Vi) As shown in FIG. 2, the upper pillar 8 provided with the recess 8 b and the hole for inserting the bolt 11 in advance is placed on the upper surface 9 c of the spacer 9. Thereby, the part by the side of + Z of thin pipe 10 is inserted in crevice 8b. Then, as shown in FIG. 2, the fixing of the upper column 8 is completed by inserting the bolt 11 and screwing the nut (step S6 in FIG. 7A).

  As described above, the floor structure 1 shown in FIG. 1 is completed.

7. Effects In the floor structure 1 according to the present embodiment, the thickness dimension of the ceiling surface material (surface material) 6, 7, 16, 17 between the vertical floor beam (lower support member) 3 and the upper column (upper member) 8. since the height _{H 9} is interposed a higher spacer 9 than, be spaced gaps _{G Z} between the lower end face 8a of the upper surface 6a, 7a and the upper pillar 8 of the ceiling surface material 6,7,16,17 Can. Therefore, the load applied from the upper part of the building through the upper column 8 does not act on the ceiling materials 6, 7, 16, 17, and the range of material selection used for the ceiling materials 6, 7, 16, 17 can be broadened. It is also possible to reduce the material cost of the ceiling materials 6, 7, 16, and 17.

  Further, in the floor structure 1 according to the present embodiment, since the spacer 9 having a compressive strength higher than that of the vertical floor beam 3 and the upper column 8 is employed, the spacer 9 may be compressed and deformed even by long-term use. This can prevent the load from the upper pillar 8 from being applied to the ceiling materials 6, 7, 16, and 17.

  Furthermore, in the floor structure 1 according to the present embodiment, since the edges of the ceiling materials 6, 7, 16, 17 are arranged on the upper surface 3a of the vertical floor beam 3, the ceiling material 6 from the lower floor side , 7, 16 and 17 without visible edges (there is no gap between the vertical floor beam 3 and the ceiling panels 6, 7, 16 and 17), and the design is excellent . Thereby, in the floor structure 1 which concerns on this embodiment, it is possible to set it as a specification.

  In the floor structure 1 according to the present embodiment, the edges of the four face materials 6, 7, 16, 17 are disposed around one spacer 9, but all of these face materials 6, 6, Since the edges of 7, 16 and 17 are arranged on the upper surface 3a of the vertical floor beam 3, they are not visible from the lower floor side, and high design can be exhibited.

  Therefore, in the floor structure 1 according to the present embodiment, the upper upper column 8 is passed through the ceiling surface materials 6, 7, 16, 17 placed and fixed on the upper surface 3a of the lower vertical floor beam 3. By avoiding the application of the load from the upper part of the building, the range of material selection of the ceiling materials 6, 7, 16, 17 can be broadened, and the increase in construction cost can be suppressed.

In the floor structure 1 according to the present embodiment, as described with reference to FIG. 3, the edges of the notches 6 b, 7 b, 16 b, and 17 b in the ceiling materials 6, 7, 16, 17 correspond to the side portions of the spacer 9. In contrast, the ceiling panels 6, 7, 16, 17 are arranged so as to open the gaps G _X and G _Y , so that the ceiling panels 6, 7, 16, 17 may be precut in advance. In the case where the notches 6b, 7b, 16b, 17b are machined, even if there are dimensional errors during precut and machining, the dimensional errors can be absorbed by the gaps G _X and G _Y. . Therefore, in the floor structure 1 according to the present embodiment, even when the ceiling materials 6, 7, 16, 17 having a dimensional error in a predetermined range are used, the necessity of rework in the field is reduced, and the construction cost Can be reduced.

  In the floor structure 1 according to the present embodiment, as described with reference to FIG. 4, the spacer 9 is configured by the cylindrical member 91 whose both openings are covered by the upper plate member 90 and the lower plate member 92. Therefore, the compressive strength against the compressive load between the vertical floor beam 3 and the upper column 8 is high, and by using the cylindrical member 91, the internal space 9b can be formed inside, and a solid member can be formed. Weight reduction can be achieved compared with the case of using.

  Further, in the floor structure 1 according to the present embodiment, the upper plate member 90 in the spacer 9 is in contact with the lower end surface 8 a of the upper column 8 and the lower plate member 92 is in contact with the upper surface 3 a of the vertical floor beam 3 Therefore, the contact area between each of the spacer 9 and the upper surface 3a of the vertical floor beam 3 and the lower end surface 8a of the upper column 8 can be increased, and even if the load of the building is applied via the upper column 8, the vertical The reduction of the spacer 9 on the upper surface 3 a of the floor beam 3 and the lower end surface 8 a of the upper column 8 is suppressed.

  In the floor structure 1 according to the present embodiment, as described with reference to FIGS. 2 and 3, the spacer 9 is disposed so that the vertical floor beam 3 and the upper column 8 fall within the overlapping region in plan view from the + Z side. Therefore, interference with other members in the area around the area can be avoided. Moreover, since the spacer 9 can not be seen when it sees from a lower floor side, it is excellent in the designability.

  In the floor structure 1 according to the present embodiment, since the spacer 9 made of a metal material (for example, a steel plate such as SS400) is employed, the processability of the spacer 9 is excellent and high compressive strength can be ensured. .

  In the floor structure 1 according to the present embodiment, as described with reference to FIG. 2, since the vertical floor beam 3 and the upper column 8 are connected by the tenon pipe (tension resistant member) 10, the vertical floor beam 3 and the upper column 8 are The connection between the vertical floor beam 3 and the upper column 8 is maintained by the drag force of the tenon pipe 10 even when a tensile force in the Z direction which separates the columns 8 acts on the column 8. Therefore, in the floor structure 1 which concerns on this embodiment, it is excellent in maintaining the connection state between the vertical floor beam 3 and the upper pillar 8.

  In the floor structure 1 according to the present embodiment, the spacer 9 is provided with the insertion portion (the opening 9a and the inner space 9b), and the tenon pipe 10 has a configuration in which the insertion portion is inserted. The spacer 9 and the tenon pipe 10 can be disposed with high space efficiency in a region where the vertical floor beam 3 and the upper column 8 overlap in a plan view from the side, and the tenon pipe from the lower floor side 10 can be made invisible and high design can be realized.

[Modification 1]
The construction method of the floor structure which concerns on the modification 1 is demonstrated using FIG.7 (b). FIG.7 (b) is process drawing corresponding to FIG.7 (a) used by description of the said embodiment.

  As shown in FIG. 7B, in the construction method of the floor structure according to the present modification, the steps S11 to S14 correspond to the steps S1 to S4 in the above embodiment. The order of construction is also the same.

  The difference between the construction method according to the present modification and the construction method according to the above embodiment is that the upper column 8 is fixed on the spacer 9 and the ceiling surface materials 6, 7, 16, 17 are mounted from (step S15). -Fixing (step S16).

  In construction of a building, it is usual to use heavy machines such as cranes for the arrangement of beams and columns, etc., but in the construction method according to this modification, the process using the cranes is not dispersed continuously. To be Thereby, the efficiency in construction can be improved.

  In addition, in the construction method which concerns on this modification, since the order of step S15 and step S16 only differs from the construction method which concerns on the said embodiment, each effect of the above embodiments can be acquired as it is.

[Modification 2]
The floor structure 31 according to the second modification will be described with reference to FIG. FIG. 8 is a schematic plan view corresponding to FIG. 3 used in the description of the above embodiment, and the upper column 8 is omitted.

  As shown in FIG. 8, in the floor structure 31 according to the present modification, the spacer 9 is mounted on the upper end surface 22 a of the lower pillar (lower support member) 22 extending in the Z direction. Also in the present modification, the spacer 9 is provided with the insertion portion including the opening 9a, and the tenon pipe 10 is inserted.

  On the upper end surface 22a of the lower column 22, the spacer 9 is placed in a substantially central region, and a region for placing the edge of the ceiling surface material (surface material) 26, 27 is left around the periphery .

  The ceiling panels 26, 27 are provided with U-shaped notches 26b, 27b. The notches 26b and 27b of the ceiling panels 26 and 27 are arranged such that the edges of the ceiling panels 26 and 27 are spaced from the side of the spacer 9 on the upper end surface 22a of the lower column 22. In order to make

Although the detailed illustration is omitted in FIG. 8, the height dimension H ₉ of the spacer 9 in the Z direction (the direction perpendicular to the paper surface) is the ceiling panel 26 as in the floor structure 1 according to the above embodiment. , 27 is set to be larger than the thickness dimension of. Thereby, similarly to the floor structure 1 according to the above embodiment, the load from the upper part of the building is prevented from being applied to the ceiling materials 26 and 27 through the upper column 8, and the range of material selection of the ceiling materials 26 and 27 It is possible to widen, and to reduce the member cost of the ceiling materials 26, 27.

  In this modification, the lower pillar 22 is applied as the lower support member, and the form of the notches 26b and 27b of the ceiling panels 26 and 27 is different from that of the above embodiment, in the same manner as the above embodiment. The configuration is adopted. For this reason, the effect which the floor structure 1 which concerns on the said embodiment, and its construction method show | play can be show | played as it is.

[Other modifications]
Although the spacer 9 and the tenon pipe 10 made of a metal material are used in the embodiment and the first and second modifications, the present invention is not limited thereto. For example, spacers and tenon pipes made of reinforced resin, ceramics, etc. can also be used.

  Although the spacer 9 having a square outer shape in plan view from the + Z side is adopted in the embodiment and the first and second modifications, the present invention is not limited to this. For example, it is also possible to adopt a spacer having a circular or elliptical shape in plan view, or a polygonal outer shape such as a triangle or a pentagon.

  Although the upper pillar 9 is adopted as an example of the upper member in the embodiment and the first and second modifications, the present invention is not limited to this. For example, a beam may be employed as the upper member.

  In the above embodiment and the first and second modifications, the ceiling surface materials 6, 7, 16, 17, 26, 27 are assumed to be made of wood plate materials as an example of the surface material. The invention is not limited to this. For example, a gypsum board etc. are also employable.

  Although the tenon pipe 10 is adopted as an example of the tension resistant member in the embodiment and the first and second modifications, the present invention is not limited to this. For example, a solid bar may be used, or a flat plate may be employed.

  In the above-described embodiment and the first and second modifications, the bolts 11 to 13 and the nuts 14 and 15 are used to fix the tenon pipe 10 to the vertical floor beam 3 and the lower column 22 and the upper column 8. The present invention is not limited to this. For example, a pin may be inserted.

  Although the spacer 9 is placed on the upper surface 3a of the vertical floor beam 3 in the embodiment and the first modification, the present invention is not limited to this. For example, the spacer can be placed on the upper surfaces of the cross floor beams 4 and 5.

  In the embodiment and the first and second modifications, “vertical” and “horizontal” are temporarily called, and the relationship between vertical and horizontal may be reversed.

  In the embodiment and the first and second modifications, the configuration in which the spacer 9 and the tenon pipe 10 are not joined is taken as an example, but a configuration in which they are joined together can also be adopted.

1, 31 floor structure 3 vertical floor beam (lower support member)
6,7,16,17,26,27 Ceiling material (face material)
6a, 7a upper surface 6b, 7b, 16b, 17b, 26b, 27b notched part 8 upper column (upper member)
8a lower end face (bottom face)
9 spacer 9a opening 10 tenon pipe (tensile resistant member)
22 Lower column (lower support member)
22a upper end face (upper face)
G _X horizontal gap G _Y vertical gap G _Z height gap

Claims (8)

In the floor structure provided between the lower and upper floors,
A facing provided between the lower floor and the upper floor,
A lower support member for supporting the face material from the lower floor side, which is a column or a beam;
A column or beam, an upper member disposed above the lower support member;
A spacer interposed between the upper surface of the lower support member and the lower surface of the upper member;
Equipped with
The edge of the surface material is placed on the upper surface of the lower support member, and the edge of the surface material is viewed in plan from the mounting direction of the surface material on the lower support member, An area where the lower support member and the upper member overlap, and is disposed around the spacer,
In the mounting direction of the face material relative to the lower support member, the distance between the upper surface of the lower support member, which is the height dimension of the spacer, and the lower surface of the upper member is greater than the thickness dimension of the face material. ,
The spacer has a higher compressive strength than the lower support member and the upper member.
Floor structure. The floor structure according to claim 1, wherein
The face material is disposed on the upper surface of the lower support member such that the edge of the face material is spaced from the side of the spacer.
Floor structure. It is a floor structure according to claim 1 or claim 2,
The spacer is cylindrical, and a cylindrical member having an opening on the upper floor side and the lower floor side, an upper plate member joined so as to cover an opening on the upper floor side in the cylindrical member, and the cylinder And a lower plate member joined so as to cover an opening on the lower floor side of the member;
The upper surface of the upper plate member is in contact with the lower surface of the upper member, and the lower surface of the lower plate member is in contact with the upper surface of the lower support member.
Floor structure. The floor structure according to any one of claims 1 to 3, wherein
In a plan view from the mounting direction of the face material to the lower support member, the spacer is disposed so as to be accommodated in an area where the lower support member and the upper member overlap.
Floor structure. The floor structure according to any one of claims 1 to 4, wherein
In the mounting direction of the face material relative to the lower support member, the lower support member and the upper member are disposed in a connecting state, and a tensile force between the lower support member and the upper member is used. It further comprises an anti-pull member that resists
The spacer is provided with an insertion portion which allows the tension resistant member to be inserted in the mounting direction of the face material relative to the lower support member,
The tension resistant member is disposed in a state where the insertion portion of the spacer is inserted.
Floor structure. In the construction method of floor structure,
Disposing a lower support member which is a column or beam;
Mounting a spacer in a state where the lower surface is in contact with the upper surface of the lower support member in a partial region of the upper surface of the lower support member;
Placing an upper member, which is a pillar or a beam, on the spacer in a state where the lower surface is in contact with the upper surface of the spacer;
An edge is placed on the upper surface of the lower support member, and an edge is an area where the lower support member and the upper member overlap in a plan view from the mounting direction of the upper member with respect to the lower support member. Placing a facing so as to be located around the spacer;
Equipped with
In the step of mounting the spacer, in the mounting direction of the face material relative to the lower support member, the spacer has a height dimension larger than the thickness dimension of the face material and is higher than the lower support member and the upper member Use a spacer with compressive strength,
Floor construction method. It is a construction method of the floor structure according to claim 6,
In the step of disposing the face material, the face material is disposed in a state where the edge of the face material is spaced from the side of the spacer on the upper surface of the lower support member. Fixing the facing to the lower support member,
Floor construction method. It is a construction method of the floor structure according to claim 6 or claim 7,
In the step of mounting the upper member, a tension-resistant member extending in the mounting direction of the face material relative to the lower support member and resisting a tensile force between the lower support member and the upper member is used. Securing the upper member to the lower support member;
Floor construction method.

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