JP3571444B2 - Floor structure - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a floor structure.
[0002]
[Prior art]
In general, the floor of a building has a foundation fixed on a concrete foundation, and a plurality of large pulls are mounted on the base directly or via a large underlay at intervals, and a direction perpendicular to the large pull is applied to the large pull. It is formed by laying a plurality of joists at an interval, and further laying a floor plate on the joists. In this case, a plurality of floor bundles are erected at intervals so as to support the large pulling in order to prevent the bending of the large pulling.
[0003]
[Problems to be solved by the invention]
However, in such a floor structure, since wood is used, it is difficult to secure dimensional accuracy, warpage and twisting are likely to occur, and there is a large variation in strength. In addition, there is a problem in that, in processing and assembling, specialized skill is required, and construction must be performed for each part, which requires a lot of work time.
[0004]
For this reason, as described in JP-A-6-193174, the joist is framed in a rectangular shape to form a frame, and a floor plate is attached to the surface to form a panel, and this floor panel is enlarged. Although a floor structure has been proposed in which the work time is reduced by erection, the basic concept of using wood remains unchanged, and at present the above-mentioned disadvantages have not been eliminated.
[0005]
The present invention has been made in view of such problems, and provides a floor structure that can be easily constructed without requiring skill.
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention is directed to a vertical piece extending upward from both left and right ends of a horizontal piece, and the whole is bent into a substantially U-shaped cross section, and formed from the front and rear ends of the vertical piece toward the center. Is bent along the L-shaped notch, thereby forming a large receiving metal fitting having an engaging piece projecting inward at a lower portion thereof, and an upper portion from a pair of two opposite sides of a rectangular horizontal piece. The upper vertical piece extends downward from the other pair of opposite sides of the horizontal piece, and the lower vertical piece extends downward along the L-shaped notch formed from the front and rear ends of each upper and lower vertical piece toward the center. And a joist fixing bracket formed by projecting an inward engaging piece from each of the upper and lower vertical pieces, and an engaging piece and a joist fixing bracket formed in a substantially square pipe shape in cross section. Steel with engagement recesses formed respectively on the upper and lower sides of the left and right sides corresponding to the engagement pieces of A steel joist, which is formed in a substantially square pipe shape in cross-section and has engaging concave portions formed on the left and right side surfaces at upper and lower sides corresponding to the engaging pieces of the joist fixing bracket, respectively. The underbar is fixed, and the steel bar is fitted and fixed in the large underbar so that the engaging piece of the large underbar engages with the engaging recess below the steel bar. The lower vertical pieces of the joist fixing bracket are fitted and fixed at intervals in the steel pulley so that the engaging pieces of the joist fixing bracket engage with the engaging recesses above the pull, and are fixed. The steel joist is fitted and fixed in the joist fixing bracket so that the vertical piece engages with the engaging recess below the steel joist, and a floor panel is laid on the steel joist via a heat insulating material. It is assumed that.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0008]
FIG. 1 shows a floor structure according to the present invention. In this floor structure 1, a steel gibber 2 and a steel joist 3 are employed in place of a wooden gibber and a joist. In order to fix the large pull 2 and the steel joist 3, a large receiving metal fitting 4 and a joist fixing metal 5 are used.
[0009]
The steel puller 2 is formed by forming a galvanized steel plate into a substantially square pipe shape by roll forming, and corresponds to an engaging piece 42 a formed on a later-described large receiving metal fitting 4 and a joist fixing metal fitting described later. The engagement recesses 2a are respectively formed on the upper and lower sides of the left and right side surfaces corresponding to the engagement pieces 52a and 53a formed in the fifth embodiment.
[0010]
The steel joist 3 is formed by forming a galvanized steel sheet into a substantially square pipe shape by roll forming in the same manner as the steel pulley 2 described above, and an engaging piece 52a formed on a joist fixing bracket 5 described later. , 53a, engaging recesses 3a are formed on the upper and lower sides of the left and right side surfaces, respectively.
[0011]
On the other hand, as shown in FIG. 4 and FIG. 5, the large undertaking metal fitting 4 is fixed to a concrete foundation (outer peripheral foundation) K and is also fixed to a steel bundle 7 erected on a continuous bundle K1. The large receiving metal fitting 4 includes a horizontal piece 41 and a pair of vertical pieces 42 extending upward from both left and right ends of the horizontal piece 41, and is bent in a substantially U-shaped cross section as a whole. The vertical piece 42 of the large support fitting 4 is bent along the L-shaped notch 4x formed from the front and rear ends toward the center, thereby engaging the lower piece with the lower part. The piece 42a is projected. Further, a cushioning material C such as a rubber packing is laid on the upper surface of the horizontal piece 41 of the large support fitting 4 to support the steel large pulley 2 while buffering the same.
[0012]
When fixing the large undertaking 4 to the concrete foundation K, a mounting bracket 6 in which the large undertaking 4 is integrally welded is used. The mounting bracket 6 is formed to have a substantially L-shaped cross section, and a long hole 61a formed in the vertical piece 61 is inserted through a mounting bolt b embedded in a concrete foundation K, and a nut is inserted into the mounting bolt b via a washer w. It is fixed by screwing n.
[0013]
Further, the steel bundle 7 to which the large receiving metal fitting 4 is fixed has a receiving member 71 having upper and lower portions formed with reverse screws (female screws), and a supporting member having a male screw which can be screwed to the receiving member 71. A ground plate 74 is fixed to the lower support member 72, and a support plate 75 is fixed to the upper support member 73. The large-size fixing bracket 4 is integrally welded to the support plate 75. Have been. By rotating the receiving member 71, the upper and lower support members 72 and 73 can be advanced and retracted with respect to the receiving member 71, and the nut 76 can be fixed at an arbitrary advanced and retracted position by being fastened to the receiving member 71. Can be done.
[0014]
In this case, the steel bundle 7 is provided on the continuous bundle K1 as an example. However, the steel bundle 7 may be erected on a soil concrete portion (not shown) instead of the continuous bundle K1.
[0015]
On the other hand, as shown in FIG. 6, the joist fixing bracket 5 has a rectangular horizontal piece 51, an upper vertical piece 52 extending upward from a pair of two opposite sides of the horizontal piece 51, and another facing piece of the horizontal piece 51. A lower vertical piece 53 extending downward from a pair of two sides, and bent along an L-shaped notch 5x formed from the front and rear ends of each of the upper and lower vertical pieces 52, 53 toward the center. Engagement pieces 52a, 53a projecting inward from the upper and lower vertical pieces 52, 53, respectively. A cushioning material C such as a rubber packing is laid on the front and back surfaces of the horizontal piece 51 of the joist fixing bracket 5, respectively, to support the steel pulley 2 and the steel joist 3 while buffering them. ing.
[0016]
The floorboard 8 is made of a particle board or the like, and is laid via a surrounding joist 9 fixed to the concrete foundation K and a heat insulating material 10 such as foamed polyethylene disposed on the upper surface of the steel joist 3 (FIG. 1). reference).
[0017]
In order to form the floor structure 1 configured as described above, the mounting bracket 6 integral with the large support fitting 4 is fastened to the concrete foundation K via a bolt and a nut, and the large support fitting 4 is integrally formed on the continuous bundle K1. The provided steel bundle 7 is erected. Then, by fitting the steel pulley 2 into these large receiving fittings 4, the lower engaging portion 2 a formed on the side surface of the steel large pulling 2 is engaged with the engaging piece 42 a of the large receiving fitting 4. Then, the steel pulley 2 is prevented from coming off and fixed. At this time, by rotating the receiving member 71 of the steel bundle 7, the supporting members 72 and 73 screwed to the receiving member 71 are moved up and down, and the supporting surface of the steel pulley 2 is adjusted. When the adjustment operation of the steel bundle 7 is completed, the nut 76 is fastened to stop the rotation.
[0018]
After the steel pulley 2 is fixed, the lower vertical piece 53 of the joist fixing metal fitting 5 is fitted into the steel pulley 2 at an interval, so that the engaging piece 53a is moved to the side of the steel pulley 2. And is fixed while preventing the joist fixing metal fitting 5 from coming off. Further, the steel joist 3 is fitted between the upper and lower pieces 52 of the joist fixing bracket 5 fixed to the steel pulley 2, so that the engaging piece 52 a is formed on the side surface of the steel joist 3. The engaging portion 3a is engaged to prevent the steel joist 3 from slipping out and fixed. Next, after arranging the heat insulating material 10 on the upper surface of the steel joist 3, the floor plate 8 may be laid.
[0019]
As a result, the standardized steel girders 2 are fitted into the large receiving metal fittings 4 and the standardized steel joists 3 are fitted into the joist fixing metal fittings 5 fixed to the steel large pulling 2. 8 can be laid, thereby eliminating the drawbacks associated with using wooden pulls and wooden joists. That is, dimensional accuracy can be ensured by using the standardized steel girders 2 and steel joists 3 and the large undertaking fittings 4 and joist fixing fittings 5, and the strength becomes constant. Anyone can work without the need for skilled skills. And since it can be constructed by a simple operation such as sequentially fitting standardized parts, it is possible to greatly reduce the operation time.
[0020]
【The invention's effect】
As described above, according to the present invention, the steel pulley is fitted and fixed to the large undertaking fixture fixed to the concrete foundation, and the joist fixing fittings fitted and fixed at intervals in the steel pulley are respectively used. The steel joists are fitted and fixed in the direction perpendicular to the steel joists, and the steel joists are laid with floorboards through heat insulation, so that the standardized steel joists and steel joists can be used. Dimension accuracy can be ensured by using, and strength is constant, and simple work such as sequentially fitting these standardized parts is sufficient, requiring specialized skill. Anyone can perform the work without any trouble, and the working time can be greatly reduced.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a floor structure of the present invention.
FIG. 2 is a sectional view taken along line ZZ of FIG.
FIG. 3 is an exploded perspective view showing the floor structure of the present invention with a part thereof being omitted.
FIG. 4 is a perspective view showing a large undertaking metal fitting provided on a concrete foundation together with a mounting metal fitting.
FIG. 5 is a perspective view showing a steel bundle together with a large receiving metal fitting.
FIG. 6 is a perspective view showing a joist fixing bracket.
[Explanation of symbols]
Reference Signs List 2 steel large pulling 2a engaging part 3 steel joist 3a engaging part 4 large receiving fitting 41a engaging piece 5 joist fixing fitting 51a engaging piece 6 mounting fitting 7 steel bundle 8 floor plate K concrete foundation K1 continuous bundle

Claims (2)

The vertical piece extends upward from the left and right ends of the horizontal piece, and is entirely bent into a substantially U-shaped cross section, and is bent along the L-shaped cut formed from the front and rear ends of the vertical piece toward the center. By doing so, a large undertaking with an inwardly engaging piece protruding at its lower part,
An upper vertical piece extends upward from a pair of opposing sides of the rectangular horizontal piece, and a lower vertical piece extends downward from another pair of opposite horizontal sides of the horizontal piece. A joist fixing bracket formed by bending along an L-shaped notch formed toward each of the upper and lower vertical pieces to protrude an inward engaging piece,
A steel puller having a substantially square pipe shape in cross-section, and engaging recesses formed on upper and lower sides of left and right side surfaces respectively corresponding to the engaging piece of the large receiving metal fitting and the engaging piece of the joist fixing metal fitting,
A steel joist having an engagement recess formed on the upper and lower sides of the left and right side surfaces corresponding to the engagement pieces of the joist fixing bracket, respectively, having a substantially square pipe shape in cross section;
A large metal fitting is fixed to the concrete foundation, and the steel large pull is fitted and fixed to the large metal fitting so that the engagement piece of the large metal fitting engages with the engagement recess below the steel large pull.
The lower vertical pieces of the joist fixing bracket are fitted and fixed at intervals in the steel pulley so that the engaging pieces of the joist fixing bracket engage with the engaging recesses above the steel pulley,
A steel joist is fitted into and fixed to the joist fixing metal so that an upper vertical piece of the joist fixing bracket is engaged with an engagement recess below the steel joist,
A floor structure comprising a floor panel laid on a steel joist via a heat insulating material . 2. The steel pulling pulley according to claim 1, wherein the steel pulling pulley is fixed to a large pulling pulley provided on a steel bundle erected on a continuous bundle or a concrete slab, together with a large pulling bracket fixed to a concrete foundation. Floor structure.

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