JP7457548B2 - Floor structure of wooden buildings - Google Patents

Description

The present invention belongs to the technical field of floor structures (floor structures) of wooden buildings constructed by the wooden frame construction method (conventional construction method).

In recent years, there have been concerns in the construction industry about a shortage of craftsmen on construction sites, and there has been a demand for labor-saving construction methods and lightweight components (products).
For example, in wooden buildings constructed using wooden frame construction, deck plates have attracted attention as they can economically and rationally improve the strength and rigidity of a structure and are also easy to handle, and in recent years, floor structures have been developed that can efficiently improve the in-plane rigidity of a floor structure by arranging deck plates within the plane of the floor structure (see, for example, paragraph [0057] and subsequent figures, Figure 12, etc. of Patent Document 1).

In Patent Document 1, for example, as shown in FIG. 12, a metal plate (deck plate) 5 is supported by a wooden beam 25 via an angle 11, and the angle 11 is supported by a wooden beam 25. A floor structure is disclosed in which a fixed-length metal plate 5 can be used by attaching it to the side surface and dropping the metal plate 5 under the beam and joining it, thereby making it possible to omit the labor of notch processing. .

Although the technique of joining the metal plates 5 by dropping them under the beams is not in the technical field of wooden buildings, it is also disclosed in Patent Document 2. This Patent Document 2 discloses a floor base installation structure in which a corrugated floor material (deck plate) 1 is supported by a steel floor beam 2 via a receiving member 3 having a Z-shaped cross section.

JP 2005-155312 A Japanese Utility Model Application Publication No. 6-35435

The floor structure according to Patent Document 1 has the following problems.
<1> Since the angle material 11 that supports the metal plate 5 is long and has a length that matches the width of the metal plate 5, it is heavy and heavy equipment is required for transportation and construction work, and it is difficult to use the site and surrounding areas. There was a problem in that construction conditions were limited due to road restrictions.
<2> Since the angle material 11 is attached by bolting or screwing directly to the side of the wooden beam 25, if a large load is applied, the bolts or screws may sink into the wooden beam 25, making it impossible to obtain sufficient strength. There was sex. Even during construction, the angle material 11 is unstablely pressed against the side of the wooden beam 25 and fixed with bolts or screws, so there is a problem that the construction accuracy is unstable because it is difficult to keep the angle 11 horizontal. there were. Furthermore, there is a concern that the angle 11 may fall during work at high places where footing is poor.

The installation structure of the floor base according to Patent Document 2 requires that the steel floor beam 2 is used instead of the wooden beam 25, and that the support material 3 corresponding to the angle material 11 has a Z-shaped cross-section, and that the upper flange Since the structure is such that the part is stably hung on the upper surface of the steel floor beam 2, the problem <2> of Patent Document 1 does not occur.
However, like the angle material 11, the receiving material 3 is elongated to match the width dimension of the corrugated flooring material 1, so there is a problem similar to the problem <1> of Patent Document 1. In addition, since the upper flange portion of the receiving material 3 has a structure that extends over the entire length of the upper surface of the steel floor beam 2, there is a problem that the upper flange portion interferes with the studs and main columns to which wall materials are attached. there were. Furthermore, since a step is formed on the upper surface of the steel floor beam 2 by the thickness of the upper flange, there is also the problem that floor finishing materials and wall materials cannot be accommodated, resulting in poor workability.

The present invention was devised in consideration of the problems in the background art described above, and its purpose is to solve problems <1> and <2> above by devising a structure for the support member when supporting a deck plate on a wooden cross member via the support member, thereby providing a floor structure for a wooden building that is easy to construct, cost-effective, and easy to handle.

As a means for solving the above problems, the floor assembly structure of a wooden building according to the invention as set forth in claim 1 is provided, in which peaks and valleys are alternately connected via sloped parts and bent into a substantially trapezoidal wave-shaped cross section. A floor assembly structure for a wooden building in which a formed deck plate is supported by wooden horizontal members via receiving members,
The receiving member has a cross section of approximately Z, including an upper flange portion that rests on the upper surface of the wooden horizontal member, a web portion that hangs down along the same side surface, and a lower flange portion that supports the trough at the end of the deck plate. A plurality of wooden horizontal members are formed at intervals in the axial direction of the wooden horizontal member;
A long base member extending in the axial direction of the wooden horizontal member is provided on the upper surface of the lower flange portion of the plurality of receiving members, and a trough at the end of the deck plate is supported on the upper surface of the base member. It is characterized by
The floor assembly structure of a wooden building according to the invention described in claim 2 includes a deck plate bent into a substantially trapezoidal corrugated cross section in which peaks and troughs are alternately connected via sloped sections, and the deck plate is bent through a receiving member. A floor structure for a wooden building supported by horizontal wooden members,
The receiving member has a cross section of approximately Z, including an upper flange portion that rests on the upper surface of the wooden horizontal member, a web portion that hangs down along the same side surface, and a lower flange portion that supports the trough at the end of the deck plate. A plurality of deck plates are formed in a letter shape and are provided at intervals in the axial direction of the wooden horizontal member to support the deck plate;
The upper flange portion of the receiving member is formed slightly longer in the transverse direction of the wooden horizontal member, and the upper flange portion is formed with a face material sandwiched between the web portion and the wooden horizontal member. It is characterized by being placed on the top surface of the wooden horizontal member.

The invention described in claim 3 is the floor assembly structure of a wooden building described in claim 1 or 2 , wherein the wooden horizontal member has a notch recessed portion on the upper surface thereof for positioning the upper flange portion of the receiving member. It is characterized by the formation of

The invention described in claim 4 is the floor assembly structure of a wooden building described in any one of claims 1 to 3 , wherein the wooden horizontal member is for positioning the web portion of the receiving member on the side surface thereof. It is characterized by having a notch recess formed therein.

The invention described in claim 5 is the floor assembly structure of a wooden building described in claim 2 , in which an elongated base extending in the axial direction of the wooden horizontal member is provided on the upper surface of the lower flange portion of the plurality of receiving members. A member is provided, and a trough at an end of the deck plate is supported on the upper surface of the base member.

The invention described in claim 6 is the floor assembly structure of a wooden building described in any one of claims 1 to 5, in which concrete is cast on the upper surface of the deck plate and integrated with the wooden horizontal member. It is characterized by being

According to the floor assembly structure of a wooden building according to the present invention, the following effects are achieved.
The floor assembly structure of the wooden building according to the first to sixth inventions is a structure in which a plurality of compact receiving members are scattered to support the deck plate, so that pillars and studs installed on the top surface of the wooden horizontal members are avoided. Flexible structural design can be achieved, such as by being able to provide different locations. Moreover, compared to the angle material 11 according to Patent Document 1, it has excellent handling properties and can be carried out by one worker during transportation and construction. Furthermore, since heavy machinery is not required, construction can be carried out in any location without restrictions on site or surrounding roads.
The floor assembly structure of a wooden building according to the first to sixth inventions is attached by hooking the receiving member (upper flange) onto the upper surface of the wooden horizontal member, so compared to the angle 11 according to Patent Document 1, Falling of the receiving member can be prevented as much as possible. In addition, since the load can be transmitted from a vertical plane rather than from a point such as a screw inserted from the lateral direction, high joint strength can be achieved. Furthermore, since the receiving members can be automatically positioned by simply hooking them onto the top surface of the wooden horizontal members, there is no need to adjust the height when installing the deck plate, and construction accuracy is more stable than when installing the deck plates on the sides.
The floor assembly structure of a wooden building according to the first to sixth inventions uses a deck plate with high strength and rigidity, so that it has sufficient rigidity compared to a conventional floor assembly formed of small beams, joists, plywood, etc. Because of this, dry type (deck plate alone) and wet type (concrete pouring) can be used depending on the structural design.
In particular, when the floor assembly structure of a wooden building according to the third invention is implemented by forming a notch recess on the upper surface of the wooden horizontal frame member, unevenness may occur even if a receiving member is attached to the wooden horizontal frame member. This allows the flooring and wall materials that will be installed later to fit in well. In addition, it serves as a work mark for the attachment site of the receiving member, and it also reliably prevents the receiving member from sliding after it has been attached, which improves workability.
In particular, when the floor assembly structure of a wooden building according to the fourth invention is implemented by forming a notch recess in the side surface of the wooden horizontal member, the gap between the wooden horizontal member and the deck plate (by the thickness of the receiving member) can be filled in, preventing concrete leakage during concrete pouring and sound leakage from the upper floors.
In particular, in the floor assembly structure of a wooden building according to the first invention, as in the second embodiment, since a long base member is interposed between the lower flange portion and the deck plate, the deck plate can be installed regardless of the mounting position of the receiving member, allowing for flexible structural design.
In particular, in the floor assembly structure of a wooden building according to the second invention, since the upper flange part of the receiving member is formed slightly longer in the lateral direction of the wooden horizontal member, there is a gap between the web part of the receiving member and the wooden horizontal member. is formed, and in a fire-resistant design, both sides and bottom of the wooden horizontal members can be protected with fire-resistant material. In addition, by reducing the contact surface between the floor assembly and wooden horizontal members, the transmission of floor impact noise to adjacent rooms is reduced, and sound insulation is improved by inserting sound-absorbing boards and extending the parting wall to the top of the beam. will improve. At this time, the inserted face material fills the gap, which has the advantage of preventing leakage during concrete pouring.
Further, the base member can increase the supporting strength for the deck plate and the poured concrete. Furthermore, when pouring concrete, concrete leakage can be prevented.
In summary, the floor assembly structure for a wooden building according to the present invention can realize a floor assembly structure for a wooden building that is excellent in workability, economy, and handling.
[Brief explanation of the drawing]

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which showed the Example of the floor assembly structure of the wooden building based on this invention (Example 1). FIG. 2 is a sectional view showing a main part of FIG. 1. FIG. FIG. 3 is an explanatory diagram showing the construction stage of a floor structure for a wooden building according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing extracted main parts of a floor assembly structure of a wooden building according to the present invention. FIG. 2 is an explanatory diagram showing a state in which concrete is poured into the floor structure of the wooden building shown in FIG. 1. FIG. FIG. 6 is a sectional view showing the main part of FIG. 5; 1 is a cross-sectional view showing another embodiment of a floor structure for a wooden building according to the present invention. FIG. FIG. 2 is a perspective view showing an example of a floor assembly structure for a wooden building according to the present invention (Example 2). FIG. 9 is a cross-sectional view showing a main part of FIG. 8 . FIG. 3 is an explanatory diagram showing the construction stage of a floor structure for a wooden building according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which extracted and showed the principal part of the floor assembly structure of the wooden building based on this invention. 9 is an explanatory diagram showing a state in which concrete is poured into the floor structure of the wooden building shown in FIG. 8. FIG. 13 is a cross-sectional view showing the main part of FIG. 12. FIG. FIG. 3 is a sectional view showing a different embodiment of the floor assembly structure for a wooden building according to the present invention. It is a sectional view showing an example of a floor assembly structure of a wooden building according to the present invention (Example 3). FIG. 3 is a sectional view showing a different embodiment of the floor assembly structure for a wooden building according to the present invention. FIG. 3 is a sectional view showing a different embodiment of the floor assembly structure for a wooden building according to the present invention. 1 is a cross-sectional view showing another embodiment of a floor structure for a wooden building according to the present invention. FIG.

Next, an embodiment of the floor assembly structure for a wooden building according to the present invention will be described based on the drawings.
Note that among "Example 1 to Example 3" in the following explanation, the original examples of the present invention are "Example 2 and Example 3", and Example 1 is a reference example related to the present invention. However, for the sake of convenience, all of them will be referred to as examples and explained below.

As shown in Figures 1 and 2, the floor structure of a wooden building according to the present invention is a floor structure of a wooden building in which a deck plate 2, which has peaks 21 and valleys 22 alternately connected via inclined sections 23 and bent into a generally trapezoidal wave-shaped cross section, is supported by a wooden cross member 3 via a support member 1. The support member 1 is formed into a generally Z-shaped cross section with an upper flange portion 11 that rests on the upper surface of the wooden cross member 3, a web portion 12 that hangs down along the side of the same, and a lower flange portion 13 that supports the valley portions 22 at the ends of the deck plate 2. A plurality of support members 1 are provided at intervals in the axial direction of the wooden cross member 3 to support the deck plate 2.

The wooden horizontal frame member 3 is a wooden horizontal frame member 3 used in the wooden frame construction method, and refers to a main beam, a small beam, a sash, or the like. In this embodiment, the wooden girder 3 is used, and the cross-sectional size is, for example, about 360 mm in the vertical dimension and about 120 mm in the horizontal dimension, and is made of structural laminated wood. Of course, the cross-sectional size of the wooden horizontal member 3 is not limited to this.
Further, as shown in FIG. 2, the wooden horizontal member 3 according to this embodiment has cutout recesses on its top and side surfaces for positioning the upper flange portion 11 and web portion 12 of the receiving member 1. A cutout recessed portion having a substantially inverted L-shaped cross section is formed by connecting the portions 3a and 3b.
The shape of the notch recesses 3a and 3b is formed by cutting out to have the same dimensions as the upper flange portion 11 and the web portion 12, which are formed in a flat plate shape. In other words, it is formed flush with the outer circumferential surface of the wooden horizontal member 3 in a state in which the upper flange portion 11 and the web portion 12 are received.

The deck plate 2 is formed of a steel plate in which peaks 21 and troughs 22 are alternately connected via sloped parts 23 to form a substantially trapezoidal corrugated cross section. A deck plate called a composite slab deck plate 2 with a section is adopted.
The dimensions of this deck plate 2 are, for example, a width of about 600 mm (double peak type), a height (mountain height) of about 50 mm, a width of the tops (flat parts) of the peaks and valleys of about 115 to 125 mm, The plate thickness is approximately 1.0 to 1.6 mm, and the total length (span length) is approximately 1.8 to 3.6 m. FIG. 1 shows a state in which two deck plates 2 are connected in the width direction.

Note that the form (shape and dimensions) of the deck plate 2 is of course not limited to this, and the design may be changed as appropriate depending on the structural design such as the installation area, the installation interval of the support beams, and the required structural strength.
For example, a deck plate 2 of a single ridge type for width adjustment having a width of about 300 mm may be used in conjunction with the deck plate 2 as appropriate. In addition, if concrete is not poured (dry type), a normal deck plate without the keyway or stepped portion may be used.
Incidentally, the deck plate 2 is provided with a through hole 22a (see FIG. 2) at a joint portion with the lower flange 13 of the receiving member 1 in the valley portion 22 at the end thereof.

The receiving member 1 is made of metal (steel), and is formed into a substantially Z-shaped cross section by the upper flange portion 11, the web portion 12, and the lower flange portion 13.
The upper flange portion 11 is formed with a through hole 11a through which a fixing device 6 such as a screw 6, a bolt, or a drift pin used for attachment to the wooden horizontal member 3 is inserted. Six through-holes 11a in the illustrated example are drilled in a well-balanced manner, but the design can be changed as appropriate depending on the structural design. In addition, although the screws 6 fix the upper flange part 11 and the wooden horizontal frame member 3 as an example, the screws 6 may be fixed by forming a through hole in the web part 12 and fixing the receiving member 1 and the wooden horizontal frame member 3, for example. It is sufficient that the material 3 is fixed so that it does not shift, and the fixing device is not limited to the screws 6, and may be fixed in any manner regardless of the fixing position.
The lower flange portion 13 is formed with a through hole 13a through which a fixing member 7 such as a bolt 7 used for attachment to the deck plate 2 is inserted (see FIG. 3). Although two through holes 13a in the illustrated example are bored on the left and right in a well-balanced manner, the design can be changed as appropriate depending on the structural design. However, when the lower flange portion 13 and the deck plate 2 are integrated by welding means, the through hole 13a is not necessary.
As an example, the dimensions of the receiving member 1 include, when viewed in the cross-sectional direction (see FIG. 2), the width of the upper flange portion 11 is approximately 57 mm, the height dimension (total height) of the web portion 12 is approximately 127 mm, and the lower flange portion 13. The width dimension is about 64 mm, the plate thickness is about 6 mm, and the depth dimension (width) B (see FIG. 4) is about 110 mm.

Note that the form (shape and dimensions) of the receiving member 1 is of course not limited to this, and the design may be changed as appropriate depending on the structural design taking into consideration the forms of the deck plate 2, the wooden horizontal members 3, etc.
For example, in the case of a structural design in which a floor plate is installed on the upper surface of the wooden horizontal member 3, as shown in FIG. It is appropriate to make the upper surface level substantially the same as the upper surface level of the wooden horizontal member 3, and to have a structure on which a floor member (floorboard etc.) 9 can be installed.
In addition, the receiving member 1 may be formed by combining two angle members (for example, by welding the back surfaces to each other) and forming a substantially Z-shaped cross section.

Next, a method (work procedure) for realizing a floor assembly structure of a wooden building consisting of the wooden horizontal members 3, deck plate 2, and support member 1 configured as described above will be explained. It should be noted that the method described below is just an example.
First, as a preparatory step, two of the wooden horizontal members (wooden girders) 3 are erected in a parallel arrangement facing each other, for example, with an interval of about 3 m, using the wooden frame construction method (see also FIG. 5). At this stage, the notch recesses 3a and 3b formed in the opposing wooden horizontal members 3 and 3 are positioned so as to face each other.
Next, as shown in FIG. 3, a plurality of (four in the illustrated example) receiving members 1 are each placed with their upper flange portions 11 on the upper surface (notch recess 3a) of the wooden horizontal member 3. At the same time, the web portion 12 is brought into contact with the side surface (notch recess 3b) of the wooden horizontal member 3, thereby positioning the receiving member 1 on the wooden horizontal member 3. Thereafter, the screws 6 are passed through the through holes 11a of the upper flange portion 11 to fix the receiving member 1 to the wooden horizontal member 3.
The work of attaching the receiving members 1 is similarly repeated to one of the wooden horizontal members 3 provided in the opposing parallel arrangement, so that the receiving members 1, 1 are faced to each other (see FIG. 5).

Next, the deck plate 2 is lifted up to a predetermined height, and placed between the receiving members 1, 1, positioned, and constructed.
Specifically, in order to lay the deck plate 2 without any gaps within the plane surrounded by the wooden horizontal members 3, the troughs 22 at both ends of the deck plate 2 in the longitudinal direction are aligned with the troughs 22 of the receiving member 1. The member is placed on the upper surface of the lower flange portion 13, and the through hole 22a of the valley portion 22 and the through hole 13a of the lower flange portion 13 are aligned, and the bolt 7 is passed through and fastened with the nut 8. This is repeated according to the number of 1, thereby realizing a floor assembly structure in which the deck plate 2 is supported by the wooden horizontal members 3 via the receiving members 1.
After that, depending on the structural design, as shown in Figures 5 and 6, a deck plate (synthetic slab deck plate) 2 is installed between the wooden horizontal members 3 and 3 (between the beams) of the floor assembly structure. The concrete 5 may be cast as a formwork, and after the concrete 5 has hardened, the deck plate 2 may be integrated with the concrete 5 to bear the acting load.Also, although not shown in the drawings, a wooden horizontal structure may be used. It may be implemented as a floor slab structure in which a floor finishing material (flooring, tatami, tiles, etc.) having a height difference between the upper surface of the frame member 3 and the upper surface of the peak portion 21 of the deck plate 2 is laid.

The floor structure of a wooden building having the above-described configuration provides the following advantages.
(1) The deck plate 2 is supported by a plurality of compact support members 1, each with a total height of about 127 mm and a width B of about 110 mm, which allows for flexible structural design, such as by allowing the support members to be positioned to avoid pillars and studs installed on the upper surface of the wooden cross members 3. In addition, compared to the angle iron 11 in the above-mentioned Patent Document 1, the support members are easier to handle, and can be transported and installed by a single worker. Furthermore, since no heavy machinery is required, construction can be performed in any location without being restricted by the site or surrounding roads.
(2) The receiving member 1 (the upper flange 11) is attached by hanging it on the top surface of the wooden cross member 3, so compared to the angle 11 in the above-mentioned Patent Document 1, it is possible to prevent the receiving member 1 from falling as much as possible. Also, since the load can be transmitted on a surface from the vertical direction, rather than on a point such as a screw inserted from the side, a high joint strength can be achieved. Furthermore, since the receiving member 1 can be automatically positioned simply by hanging it on the top surface of the wooden cross member 3, there is no need to adjust the height when installing the deck plate 2, and construction accuracy is more stable than when attached to the side.
(3) By using the deck plate 2, which has high strength and rigidity, it has sufficient rigidity compared to conventional floor structures formed from small beams, joists, plywood, etc., so that dry type (deck plate 2 alone) or wet type (pouring concrete 5) can be used depending on the structural design.
(4) In this embodiment, the notched recess 3a is formed on the upper surface of the wooden cross member 3, so that the receiving member 1 is attached to the wooden cross member 3 without causing unevenness, and the flooring and wall materials to be attached thereafter can be fitted well. In addition, it serves as a work marker for the attachment location of the receiving member 1, and once attached, it is easy to install because it can reliably prevent the receiving member 1 from slipping.
(5) In this embodiment, a notched recess 3b is formed on the side of the wooden cross member 3, so that the gap (corresponding to the thickness of the receiving member 3) between the wooden cross member 3 and the deck plate 2 can be filled (reduced), thereby preventing concrete leakage during pouring and sound leakage from the upper floors.

8 and 9 show the floor assembly structure of a wooden building according to the second embodiment.
The floor assembly structure of a wooden building according to this second embodiment differs from the first embodiment in that a base member 4 is interposed between the deck plate 2 and the lower flange portion 13 of the receiving member 1. differ. The other configurations are the same as those of the first embodiment, so the same reference numerals are given and the explanation thereof will be omitted as appropriate.

The base member 4 is a long and thin member extending in the axial direction of the wooden horizontal member 3, and in this embodiment, as an example, the base member 4 has a thickness of about 6 mm, a width of about 50 mm, and the axial length is used. The width is the same as the width of the deck plate 2 (in-plane width).

As shown in FIG. 10, the base member 4 is placed on the upper surface of the lower flange 13 of a plurality of (four in the illustrated example) receiving members 1 attached to the wooden horizontal member 3. In the base member 4 according to this embodiment, a through hole 4a is pre-drilled at a position where the cores coincide with the through hole 13a of the lower flange 13 (see FIG. 6), and the through holes 13a and 4a are After the position (centering) alignment is performed, the position (centering) of the through hole 22a of the valley portion 22 at the end of the deck plate 2 is further aligned while the deck plate 2 is suspended and supported. By passing the bolts 7 through the through-holes 13a, 4a, and 22a whose cores are aligned in this manner and tightening the nuts 8, the lower flange portion 13 (receiving member 1), the base member 4, and the valley portion 22 (deck plate 2) are removed. The three members are integrated (see Fig. 11).
Note that when the base member 4 and the deck plate 2 are integrated by welding means, the through hole 4a is not necessary.
For the method of attaching the receiving member 1 to the wooden horizontal member 3 and the method of positioning the deck plate 2 to the lower flange portion 13, please refer to paragraphs [0024] and [0025].

After that, according to the structural design, as shown in FIGS. 12 and 13, a deck plate (synthetic slab deck plate) 2 is installed between the wooden horizontal members 3 and 3 (between the beams) of the floor assembly structure. The concrete 5 may be cast as a formwork, and after the concrete 5 has hardened, the deck plate 2 may be integrated with the concrete 5 to bear the acting load.Also, although not shown in the drawings, a wooden horizontal structure may be used. It may be implemented as a floor slab structure in which a floor finishing material (flooring, tatami, tiles, etc.) having a height difference between the upper surface of the frame member 3 and the upper surface of the peak portion 21 of the deck plate 2 is laid. In addition, as shown in FIG. 13, when pouring concrete 5, it is necessary to cure the space between the end of the deck plate 2 and the wooden horizontal member 3, or to cure the space between the lower flange portion 13 of the receiving member 1 and the base member 4. It is desirable to arrange and fix the concrete 5 without any gaps, as this will further prevent leakage of the concrete 5.
In addition, as shown in FIG. 14, the upper surface level of the deck plate 2 is made approximately the same as the upper surface level of the wooden horizontal member 3 by using the receiving member 1 in which the height dimension of the web portion 12 is shortened, and It may be implemented with a structure in which a floor member (floorboard, etc.) 9 can be installed.

The floor assembly structure of the wooden building according to this second embodiment is the same as the first embodiment described above, and is composed of the receiving member 1, the deck plate 2, and the wooden horizontal member 3. Therefore, the same effects as in the first embodiment described in paragraphs [0026] (1) to (5) are achieved.
In addition, in the floor assembly structure of a wooden building according to the second embodiment, the long base member 4 is interposed between the lower flange portion 13 and the deck plate 2, so that the following effects are achieved.
(6) Since the deck plate 2 can be installed regardless of the mounting position of the receiving member 1, flexible structural design is possible.
(7) The supporting strength for the deck plate 2 and the poured concrete 5 can be increased. Moreover, when pouring concrete 5, concrete leakage can be prevented.

15 to 18 show the floor assembly structure of a wooden building according to the third embodiment.
The floor assembly structure of the wooden building according to this third embodiment is different from the first and second embodiments described above, and has a structure in which a face material 10 is interposed between the web portion 12 of the receiving member 1 and the wooden horizontal member 3. The difference is that it is implemented in The other configurations are the same as those in the first and second embodiments, so the same reference numerals are given and the explanation thereof will be omitted as appropriate.
Specifically, the upper flange portion 11 of the receiving member 1 is formed slightly longer in the lateral direction of the wooden horizontal member 3, and there is a gap between the web portion 12 and (the side surface of) the wooden horizontal member 3. , the upper flange portion 11 is placed on the upper surface of the wooden horizontal member 3 with the face material 10 sandwiched therebetween.
Incidentally, FIG. 15 is an example in which the above-mentioned face material 10 is interposed in the structure of FIG. 6 according to the first embodiment, and FIG. 16 is an example in which the above-mentioned face material 10 is interposed in the structure shown in FIG. FIG. 17 shows an example in which the face material 10 is interposed in the structure of FIG. 13 according to the second embodiment, and FIG. This is an example in which the following is interposed. However, in Examples 1 and 2, the notch recess 3b is formed in the side surface of the wooden horizontal member 3, but in Example 3, the notch recess 3b is formed in consideration of the fit of the panel 10. (For example, see FIG. 6 and FIG. 15 in comparison).

The face material 10 is interposed for the purpose of fireproofing and sound absorption, and in this embodiment, two sheets are used, but the number can be increased or decreased as appropriate depending on the structural design. As shown in the illustrated example, the upper flange portion 11 of the receiving member 1 is placed on the upper surface of the wooden horizontal member 3 with the face material 10 sandwiched therebetween, and in the fireproof design, the side and lower surfaces of the wooden horizontal member 3 are It can be protected with a face material 10 made of fireproof material. Furthermore, by reducing the contact surface between the floor assembly and the wooden horizontal member 3, it is possible to reduce the transmission of floor impact noise to adjacent rooms. Furthermore, sound insulation can be further improved by inserting a sound-absorbing panel 10 or by extending the parting wall to the upper surface of the beam.
Note that by forming the through hole 11a of the upper flange portion 11 into a long loose hole in the lateral direction of the wooden horizontal member 3 (lateral direction in FIGS. 15 to 18) (not shown), the face material 10 can be Efforts will be made as appropriate to enable implementation even without intervention.

Although the embodiments have been described above based on the drawings, the present invention is not limited to the illustrated examples, and includes the range of design changes and application variations that are commonly made by those skilled in the art without departing from the technical idea thereof. I would like to add this just in case.

REFERENCE SIGNS LIST 1 Receiving member 11 Upper flange portion 11a Through hole 12 Web portion 13 Lower flange portion 13a Through hole 2 Deck plate (deck plate for composite slab)
21 Peak portion 22 Valley portion 22a Through hole 23 Slope portion 3 Wooden cross member (wooden girder)
3a Notched recess 3b Notched recess 4 Base member 4a Through hole 5 Concrete 6 Fixing device (screw)
7 Fixtures (bolts)
8 Nut 9 Floor member 10 Surface material B Width of receiving member

Claims (6)

A floor assembly structure for a wooden building in which a deck plate is bent into a substantially trapezoidal wave cross section with alternating peaks and valleys via sloped sections, and is supported by wooden horizontal members via receiving members. There it is,
The receiving member has an approximately Z cross section, including an upper flange portion that rests on the upper surface of the wooden horizontal member, a web portion that hangs down along the same side surface, and a lower flange portion that supports the trough at the end of the deck plate. A plurality of wooden horizontal members are formed at intervals in the axial direction of the wooden horizontal member;
A long base member extending in the axial direction of the wooden horizontal member is provided on the upper surface of the lower flange portion of the plurality of receiving members, and a trough at the end of the deck plate is supported on the upper surface of the base member. The floor structure of a wooden building is characterized by : A floor structure for a wooden building in which a deck plate is bent and formed into a substantially trapezoidal wave-shaped cross section in which peaks and valleys are alternately connected via inclined sections, and is supported by wooden cross members via support members,
the support member is formed with a generally Z-shaped cross section and includes an upper flange portion that rests on the upper surface of the wooden cross member, a web portion that hangs down along the side surface, and a lower flange portion that supports the valley portion at the end of the deck plate, and the support member is provided in a plurality of positions spaced apart in the axial direction of the wooden cross member to support the deck plate ;
A floor structure for a wooden building, characterized in that the upper flange portion of the receiving member is formed slightly longer in the short direction of the wooden cross member, and the upper flange portion is placed on the upper surface of the wooden cross member with a surface material sandwiched between the web portion and the wooden cross member. 3. A floor structure for a wooden building according to claim 1 , wherein the wooden cross member has a notched recess formed on its upper surface for positioning the upper flange portion of the receiving member. The floor structure of a wooden building according to any one of claims 1 to 3 , wherein the wooden cross members have cutout recesses formed on their sides for positioning the web portions of the receiving members. A long base member extending in the axial direction of the wooden horizontal member is provided on the upper surface of the lower flange portion of the plurality of receiving members, and a trough at the end of the deck plate is supported on the upper surface of the base member. The floor assembly structure for a wooden building according to claim 2 , characterized in that: The floor assembly structure for a wooden building according to any one of claims 1 to 5, characterized in that concrete is cast on the upper surface of the deck plate and is integrated with the wooden horizontal member.

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