JPH0816359B2 - Floor joisting wall bracket - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a floor joist wall fitting for a building.

[Conventional technology]

The boundary wall between the doors in a conventional housing unit of a box structure made of steel frame composed of columns and beams that constitute a unit type apartment building such as an apartment house is
In addition to sound insulation and the like, the fire prevention (fire spread prevention) function is particularly important. Therefore, a so-called boundary wall having fire resistance is provided to perform the above function.

However, since the surface of the general boundary wall of each room space of this type of building is continuously covered with a fireproof panel such as gypsum board without any gap, a good fireproof function can be obtained. Since each underfloor structural member is intricate in the boundary wall of the section, in order to obtain a fire spread prevention function without creating voids of refractory material, etc. Needed special attention.

FIG. 4 and FIG. 5 show schematic explanatory views of an example of this type of floor joist wall part configuration that the applicant has already applied for.

4 (a) and 4 (b) are a fragmentary plan view and a vertical sectional view of an essential part of an example of a floor joist boundary wall portion of a steel-framed housing unit, and FIGS. 5 (a) to 5 (d) are, respectively. Enlarged vertical sectional views of the circles A, B, C and D in FIG. 4 (a), and FIGS. 5 (e) and 5 (f) are A-A and B in FIG. 5 (a), respectively. -B sectional view, and FIGS. 5 (g) and 5 (h) are C-C and D- of FIG. 5 (c), respectively.
It is a D line sectional view.

In the above figures, 1 and 1a are wooden floor joists and 2 respectively.
Is a steel channel cross-section floor girder, 3 is a steel box cross-section floor girder, 4 is a steel channel cross-section girder girder, and 4a is rock wool (only shown in FIG. 5 (d)) Is. 5,5a
Is each floor joist of the boundary wall panel attachment part, which consists of a steel plate bending member with a channel cross section with both ends cut out, and each wooden joist 1 or 1a is housed inside and the three sides of the bottom and bottom sides are stored. A fireproof protection is provided, and each outer end portion is provided with a steel plate welded partition wall 6 or 6a. Reference numeral 7 is a fixing (self) tapping screw, and 8 is an iron round nail. Also, 9 is a floor floor wall panel, which is composed of two pieces of gypsum board or the like, and a reinforcing cement board (commonly called a calical board) 10 for fireproof is interposed between them. Reference numeral 11 indicates a floor material such as particle board.

For this type of boundary wall, see, for example, JP-A-63-300140.
Although an example of the underfloor boundary wall structure is disclosed in the publication, etc., in this case, since the boundary wall is parallel to the joists (so-called joist win structure), the fire prevention structure of this part of the boundary wall is simple, As in the above example, if the wooden joists penetrate the boundary wall panel section, the entire floor joist section of this section is made of steel to prevent fire hazards. It may be possible to manufacture it and deal with this.

[Problems to be Solved by the Invention]

However, as described above, since the entire floor joist portion of the underfloor boundary wall panel mounting portion is made of the steel fireproof structure, there is a drawback that the cost is increased.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a low-cost floor joist boundary wall fitting that can be applied to the conventional assembling method.

[Means for solving the problem]

Parallel to the opposing steel girder girders, install the standing wall panel on the inner end of the gable floor girder side of each wooden floor joist suspended between the opposing steel girder girders. It is a floor joist boundary wall metal fitting used at the time of having a square pipe cross section, one end of the wooden floor joist is inserted into one end, and the other end is on the steel gable floor girder. The object is to achieve the above object by providing a floor joist boundary wall fitting provided with a notch for fixing.

[Action]

By using the floor joist boundary wall metal fittings as described above, necessary and sufficient fire protection can be obtained without making the entire floor joist portion of the boundary wall panel mounting part steel, which can contribute to cost reduction. Also, the conventional assembling method can be used as it is.

〔Example〕

Hereinafter, the present invention will be described based on Examples. FIG. 1 and FIG. 2 are explanatory views of an embodiment of the main part of the floor joist wall part of the steel frame housing unit according to the present invention.

1 (a) and 1 (b) are a plan view and a vertical cross-sectional view of a main part of an embodiment of a floor joist boundary wall portion of a steel-framed housing unit, and FIGS. 2 (a) to 2 (c) are, respectively. 2A and 2B are enlarged vertical cross-sectional views of the circles A, B, and C in FIG. 1A, and FIGS. 2D and 2E are A of FIG.
FIG. 3 is a sectional view taken along line A-A and a sectional view taken along line BB in FIG.
In each figure, the same as (corresponding to) the above example in Figures 4 and 5
The constituent elements are represented by the same reference numerals, and the duplicated description of each is omitted.

(Structure) This embodiment is characterized in that in FIG. 4 and 5 of the above example, each floor joist 5, 5a of the boundary wall panel mounting portion is entirely formed by bending a steel plate bending member having a channel cross section. Whereas 1 or 1a was protected from fire from three sides, in the present embodiment, steel floor joist boundary wall metal fittings 12 each having a square pipe cross section are attached to each wall panel mounting portion on the side of the gable floor girder of each floor joist. Or, 12A is provided, and one end of each wooden floor joist is inserted and fixed to one end thereof, respectively, and the side of the gable floor girder of these metal fittings 12 or 12A is cut out and fixed on the girder 4. It is in.

That is, in FIGS. 1 and 2, 1A and 1Aa are the floor joists of the wooden boundary wall panel mounting portion, and the steel square pipe-shaped floor joist boundary wall metal fittings 12 and 12A on the side of the gable floor girder. The ends of the floor joists 1A or 1Aa are inserted into one end and fixed with a plurality of tapping screws 7, and the end on the gable floor girder 4 side is cut out and tapped on the gable floor girder 4. It is fixed by screws 7. The insertion ends of these floor joists 1A or 1Aa are filled with rock wool 14, respectively, and together with the heat insulating material 14a, the fireproof function of this part is completed.

Further, in the vicinity of the floor joist insertion terminal end of each floor joist boundary wall fitting 12, 12A, a steel partition wall piece 13 is erected on the upper part by welding to protect the end of the floor material 11. .

In order to show the above configuration in more detail, FIG. 3 shows a perspective view for explaining an assembling procedure in the case of an underfloor sub-assembly of the second floor unit of the gable wall.

Reference numeral 9 indicates an underfloor boundary wall panel, and 15 indicates a boundary wall panel rail. After attaching the floor joist 1A and the underfloor boundary wall panel 9 with a plurality of tapping screws 7, the boundary wall panel rail 15 is fixed with the tapping screws 7.

With each floor joist boundary wall metal fitting 12,12A of the above configuration,
As in the above example, it is not necessary to make the entire floor joist part made of steel, the cost can be reduced, a necessary and sufficient fire protection function can be obtained, and the same assembly method as in the past can be applied.

[Advantages of the Invention] As described above, according to the present invention, since it is configured to use a square pipe-shaped floor joist wall fitting such as steel in the mounting portion of the floor joist wall panel, it is necessary. A fireproof function is obtained, and it is not necessary to make the entire floor joist portion of this portion into steel, which can contribute to cost reduction.

[Brief description of drawings]

1 (a) and 1 (b) are a fragmentary plan view and a vertical sectional view of a main part of a floor joist boundary wall portion according to the present invention, and FIGS. 2 (a), (b) and (c) are, respectively, Enlarged vertical sectional views of the circles A, B, and C in FIG. 1 (a), FIG. 2 (d),
2E is a cross-sectional view taken along the line AA of FIG. 2A and the line BB of FIG. 2C, and FIG. 3 is the second-floor unit of the gable wall of this embodiment. 4A and 4B are perspective views of an underfloor sub-assembly procedure of FIGS. 4A and 4B, respectively, corresponding to FIGS. Figures (a), (b), (c) and (d) are respectively enlarged vertical sectional views of respective circles I, B, C and D of FIG. 4 (a), FIG. 5 (e), (F); (g), (h) are the fifth
It is each sectional drawing of the AA and BB line of a figure (a), and the CC and DD line of a 5th figure (c). 1,1a …… Floor joists 1A, 1Aa …… Floor joists at the boundary wall panel mounting part 4 …… Tsumabashi beam 9 …… Underfloor wall panel 12,12A …… Floor joist wall brackets

Claims (1)

[Claims] 1. A boundary wall panel is provided at an inner end portion of each wooden floor joist, which is suspended between opposing steel girder girders, in parallel with the girder girder girders facing each other. A floor joist boundary wall metal fitting used when standing upright and having a square pipe cross section, and one end of the wooden floor joist is inserted into one end thereof, and the other end is made of the steel. A floor joist wall wall fitting characterized by having a notch for fixing on the gable floor girder.