JP3555817B2 - Outer wall panel mounting structure below the beam - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a mounting structure of an outer wall panel below a beam in a building such as a house.
[0002]
[Prior art]
Conventionally, when attaching the upper end part of the outer wall panel of a house to a beam made of H-section steel, for example, a fastener (bracket) is attached to the upper end part and the beam on the back side of the outer wall panel, and the panel side and the beam side are attached. Fasteners are connected to each other with, for example, bolts and nuts. The fastener on the beam side is generally fixed to the upper flange of the beam, if the beam is an H-beam, to the upper flange. For example, a balcony is provided on the second floor of a house, and the balcony is located on the first floor. In the place where it extends to the upper part, the outer wall panel on the first floor located below this balcony is the lower part of the beam at the upper end of the outer wall on the first floor due to space restrictions. I was trying to connect to it.
[0003]
[Problems to be solved by the invention]
However, as described above, when the upper end of the outer wall panel is fixed to the lower part of the beam via fasteners, it becomes difficult to adjust the vertical position of the outer wall panel with respect to the beam, and as a result, for example, the adjacent outer wall panel There is a problem that the positions of the upper end portions are not uniform and the appearance is poor. In addition, since the outer wall panel and the beam, that is, the reinforced steel structure of the house vibrate integrally during the earthquake, there is a problem that the outer wall panel is easily peeled or dropped.
[0004]
[Means for Solving the Problems]
SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problem and to provide an outer wall panel mounting structure below a beam, which can be mounted on the outer wall panel so that the vertical position can be adjusted below the beam.
Therefore, in the mounting structure of the outer wall panel according to the first aspect, the upper fastener of the outer wall is fixed to the upper end on the back side of the outer wall panel, and the beam fastener is disposed above the upper fastener of the outer wall. A fastener is connected to a joint bolt and a nut screwed thereto, and the beam fastener is fixed to a lower portion of a beam of a building, so that the outer wall panel is attached to the beam below the beam, while the back surface of the outer wall panel is attached. The engaging portion of the C-rail fixing bolt is movably fitted to the C-rail having a substantially C-shaped cross section embedded along the width direction of the lower end of the side, and the cross-section is fitted to the male screw portion of the C-rail fixing bolt. threadedly L-shaped outer wall lower end fastener its backside above C rail four projections so as to surround the lip is formed fitted with holes formed in the vertical portion comprising in the nut And a vertical shaft portion of the upper fastener fixed to the upper surface of the foundation is vertically movably fitted into a hole provided in a horizontal portion of the lower end fastener of the outer wall. It is.
[0005]
In the above mounting structure, the upper end of the outer wall panel is suspended from the beam via the beam fastener, the joint bolt / nut and the outer wall upper fastener. In this state, the vertical position of the outer wall panel with respect to the beam can be adjusted by changing the screwing position of the nut with respect to the joint bolt. Further, since the upper fastener of the outer wall is vertically movable with respect to the beam fastener, the outer wall panel can vibrate independently of the beam, that is, the building body in the event of an earthquake.
[0006]
According to a second aspect of the present invention, in the configuration of the first aspect, the beam fastener is configured such that the beam fastener is connected to the upper end fastener of the outer wall by the joint bolt and the nut, and is perpendicular to one end of the first horizontal portion. , And a second horizontal portion bent horizontally from the upper end of the vertical portion and fixed to a lower portion of the beam, thereby forming a bent shape.
[0007]
Here, since the first horizontal portion of the beam fastener is located below the second horizontal portion fixed to the lower portion of the beam, a joint bolt and a nut screwed thereto are arranged below the beam, and Can be avoided.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, for example, the outer wall of a three-story house H is divided into outer walls W1 to W3 for each floor, and the outer walls W1 to W3 of each floor are each configured by arranging a plurality of outer wall panels in a horizontal direction. ing. Among them, the outer wall panel on the first floor is composed of, for example, a general panel 1a and a lower beam panel 1b located below the balcony B on the second floor, and the balcony B projects to the upper part of the first floor. The vertical dimension of the lower panel 1b is smaller than the vertical dimension of the general panel 1a.
[0009]
The outer wall panel on the second floor is composed of, for example, a general panel 2a, an upper window panel 2b, a lower window panel 2c, a panel with an opening 2d, and a waist wall panel 2e in a balcony B. The outer wall panel on the third floor is, for example, a parapet section. , A long general panel 3a, an inclined panel 3b at the inclined portion A, and the like.
[0010]
Here, the beam lower panel 1b (outer wall panel) on the first floor arranged below the balcony B and its mounting structure will be particularly described. As shown in FIGS. 2 and 3, the lower beam panel 1 b is made of a concrete plate or the like in which a reinforcing bar (not shown) is incorporated as necessary. The front side of the lower beam panel 1 b is partitioned by vertical and horizontal grooves. Many convex parts 4 are formed. In each of the drawings other than FIG. 2 and FIG. 3, illustration of the convex portion 4 is omitted for simplicity. The shape of the convex portion 4 may be other than that shown in the drawings, or may be a solid outer wall panel having no convex portion 4.
[0011]
As shown in FIG. 4, a metal insert nut 5 is embedded on the left and right sides of the upper end of the lower surface of the lower beam panel 1b, and a female screw 5a is formed in the insert nut 5. A metal C rail 6 having a substantially C-shaped cross section is embedded along the width direction of the lower end on the back surface side of the lower beam panel 1b.
[0012]
Next, the mounting structure of the lower beam panel 1b on the outer wall W1 on the first floor will be described. As shown in FIGS. 5 and 6, in order to attach the upper end of the lower beam panel 1b to the house-side beam 7 (H-shaped steel), an upper end fastener 8 having an L-shaped cross section and a bent beam fastener 10 are provided. And the joint bolt 11 are used. The outer wall upper end fastener 8 includes a vertical portion 8b having a hole 8a and a horizontal portion 8d having a first insertion hole 8c.
[0013]
On the other hand, the beam fastener 10 includes a first horizontal portion 10b provided with a second insertion hole 10a, a vertical portion 10c that is bent from one end of the first horizontal portion 10b and rises vertically, and is horizontally bent from an upper end of the vertical portion 10c. , A second horizontal portion 10e provided with a hole 10d, and a hole 7b corresponding to the hole 10d is formed in a lower flange 7a (lower portion) of the beam 7.
[0014]
When attaching the upper end of the lower beam panel 1b to the beam 7, first, the outer wall upper fastener 8 is fixed to the left and right sides of the upper end of the lower surface of the lower beam panel 1b with bolts 12. That is, the bolt 12 is passed through the hole 8a of the vertical portion 8b of the upper end fastener 8 of the outer wall, and the bolt 12 is screwed to the insert nut 5 (not shown in FIG. 5).
[0015]
Subsequently, the beam fastener 10 is disposed above the upper fastener 8 of the outer wall, and the joint bolt 11 is inserted from below the upper fastener 8 of the outer wall into the first through hole 8c and the second through hole 10a of the beam fastener 10 to thereby form the beam fastener 10. Is screwed to the nut 13 at the upper part of the outer wall, thereby connecting the upper end fastener 8 of the outer wall and the beam fastener 10 using the joint bolt 11 and the nut 13.
[0016]
Next, the second horizontal portion 10e of the beam fastener 10 is arranged along the lower surface of the lower flange 7a of the beam 7 located at the upper end of the outer wall of the first floor of the house H, and the second horizontal portion 10e and the lower flange 7a correspond to each other. The second horizontal portion 10e of the beam fastener 10 is fixed to the lower flange 7a of the beam 7 with a bolt 14 and a nut 15 penetrating the holes 10d and 7b.
[0017]
In this state, the nut 13 contacts the upper surface of the first horizontal portion 10b of the beam fastener 10, and the large diameter head 11a of the joint bolt 11 contacts the lower surface of the horizontal portion 8d of the outer wall upper fastener 8. As shown in FIG. 7, the lower flange 7a is supported from below the beam 7 in a suspended state. Then, by rotating the nut 13 in a desired direction and adjusting the screwing position of the nut 13 with respect to the joint bolt 11, the vertical position of the beam lower panel 1b with respect to the beam 7 can be adjusted. Here, since the bent beam fastener 10 is used, the upper end of the joint bolt 11 is located below the lower flange 7 a of the beam 7, and a beam (not shown) extending in a direction orthogonal to the beam 7 and the joint bolt 11 are formed. There is no interference.
[0018]
8 and 9 show a support structure at the lower end of the lower beam panel 1b on the first floor. Here, the lower end of the lower beam panel 1b is supported by the foundation 16. To describe in detail below, first, the engaging portion 17a of the C-rail fixing bolt 17 is movably fitted to the C-rail 6 embedded in the lower end on the back surface side of the lower beam panel 1b.
[0019]
An outer wall lower end fastener 18 having an L-shaped cross section is fitted into the male screw portion 17b of the C rail fixing bolt 17 through a hole 18b provided in the vertical portion 18a, and a nut is attached to the male screw portion 17b outside the vertical portion 18a. By screwing 20, the lower end fastener 18 of the outer wall is fixed to the lower beam panel 1 b. As shown in FIG. 10, four projections 18 e are formed on the back surface of the vertical portion 18 a of the lower end fastener 18 of the outer wall so as to surround the lip of the C rail 6. The outer wall lower end fastener 18 is prevented from rotating.
[0020]
On the other hand, on the upper surface of the foundation 16, an upper fastener 21 is fixed by a concrete friction anchor bolt 22, and in this state, a vertical direction of the upper fastener 21 is inserted into a hole 18d provided in a horizontal portion 18c of the lower end fastener 18 of the outer wall. By fitting the shaft portion 21a, the lower end portion of the lower beam panel 1b is supported by the foundation 16 so as to be able to move up and down and not to move back and forth and left and right. A predetermined gap E (typically, for example, about 17.5 mm) is set between the lower end of the beam lower panel 1b and the foundation 16, and the size of the gap E is determined by the beam lower panel 1b. Of the lower panel 1b with respect to the beam 7 and the vertical position of the lower beam 1b.
[0021]
In the above configuration, for example, the upper end and the lower end of the lower beam panel 1b are supported at two points on the left and right, respectively. However, as shown in the schematic diagram of FIG. 11, two fulcrums S1 and S2 at the upper end are provided. ) Can be displaced upward by the distance between the outer wall upper fastener 8 and the beam fastener 10, respectively, while the two fulcrums S3 and S4 at the lower end of the general panel 1a are respectively formed by holes of the outer wall lower fastener 18. 18d can move up and down with respect to the shaft portion 21a of the upper fastener 21, so that in the event of an interlayer displacement during an earthquake or the like, the fulcrums S1 and S2 of the under-beam panel 1b are displaced upward, When S3 and S4 are vertically displaced, the lower beam panel 1b rotates as a whole as shown by the dotted line, and can follow the interlayer displacement. Therefore, troubles such as damage and dropout of the lower beam panel 1b due to interlayer displacement are less likely to occur.
[0022]
FIG. 12 shows a modification of the C-rail fixing bolt 17 at the lower end of the general panel 1a. The C-rail fixing bolt 23 has an engaging portion 23a slidably fitted to the C-rail 6 and two male screw portions 23b protruding from the engaging portion 23a. The vertical portion 24a is provided with two holes 24b through which the male screw portions 23b are inserted. Here, since two male screw portions 23b are provided, the protrusion 18e for preventing rotation such as the outer wall lower end fastener 18 becomes unnecessary.
[0023]
【The invention's effect】
As described above, in the mounting structure of the outer wall panel below the beam according to claim 1 of the present invention, the upper fastener of the outer wall is fixed to the upper end on the back side of the outer wall panel, and the beam fastener is disposed above the upper fastener of the outer wall. The upper end fastener of the outer wall and the beam fastener are connected with a joint bolt and a nut screwed thereto, and the beam fastener is fixed to a lower portion of a beam of a building, so that the outer wall panel is positioned below the beam. On the other hand, the engaging portion of the C rail fixing bolt is movably fitted to a C rail having a substantially C-shaped cross section embedded along the width direction of the lower end on the back side of the outer wall panel, the male thread portion of the rail fixing bolt hole formed in the vertical portion of four protrusions is formed so as to surround the lips of the C-rail cross section L-shaped outer wall lower end fastener on its back side The nut is screwed together and fixed, and the vertical shaft of the upper fastener fixed to the upper surface of the foundation is vertically movably fitted into a hole provided in the horizontal portion of the lower end fastener of the outer wall. Therefore, the vertical position of the outer wall panel with respect to the beam can be easily adjusted by changing the screwing position of the nut with respect to the joint bolt. Further, in the event of an earthquake, the outer wall panel can vibrate independently of the building body including the beam, so that the outer wall panel is less likely to peel or separate.
[0024]
According to a second aspect of the present invention, in the structure of the first aspect, the beam fastener has a first horizontal portion connected to the upper end fastener of the outer wall by the joint bolt and nut, and a first horizontal portion. Since it is formed by a vertical portion rising vertically from one end and a second horizontal portion bent horizontally from the upper end of the vertical portion and connected to a lower portion of the beam, a joint bolt or a threaded connection with the joint bolt is formed. The interference with the beam can be avoided by arranging the nut to be provided below the beam.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing a house having an outer wall panel according to an embodiment of the present invention.
FIG. 2 is a front view showing the outer wall panel.
FIG. 3 is a side view of the outer wall panel.
FIG. 4 is a rear view of the outer wall panel.
FIG. 5 is a side view showing a mounting structure of an upper end portion of the outer wall panel.
FIG. 6 is a perspective view showing a mounting structure of the upper end.
FIG. 7 is a perspective view showing a state where the upper end is attached to a beam.
FIG. 8 is a perspective view showing a support structure of a lower end portion of the outer wall panel.
FIG. 9 is a side view showing a support structure of a lower end portion of the outer wall panel.
FIG. 10 is a perspective view showing an outer wall lower end fastener attached to a lower end of the outer wall panel.
FIG. 11 is an explanatory diagram showing how the outer wall panel follows interlayer displacement.
FIG. 12 is a perspective view showing a modification of the support structure at the lower end of the outer wall panel.
[Explanation of symbols]
1b Beam lower panel (outer wall panel)
6 C rail 7 Beam 8 Outer wall upper fastener 10 Beam fastener 11 Joint bolt 13 Nut 16 Foundation 17 C rail fixing bolt 17a Engagement part 17b Male threaded part 18 Outer wall lower fastener 18a Vertical part 18b Hole 18c Horizontal part 18d Hole
18e projection 20 nut 21 base fastener 21a shaft

Claims (2)

The upper fastener of the outer wall is fixed to the upper end on the back side of the outer wall panel, a beam fastener is disposed above the upper fastener of the outer wall, and the upper fastener of the outer wall and the beam fastener are connected with a joint bolt and a nut screwed thereto. While fixing the beam fastener to the lower part of the beam of the building, the outer wall panel is attached to the beam below the beam,
The engaging portion of the C rail fixing bolt is movably fitted to a C rail having a substantially C-shaped cross section embedded along the width direction of the lower end on the back side of the outer wall panel, and The lower end fastener of the outer wall having an L-shaped cross section is fitted to the male screw portion with a hole provided in a vertical portion having four protrusions formed on the back surface so as to surround the lip of the C rail, and the nut is screwed. And a vertical shaft portion of the upper fastener fixed to the upper surface of the base is vertically movably fitted into a hole provided in the horizontal portion of the lower end fastener of the outer wall. Exterior wall panel mounting structure. The beam fastener comprises: a first horizontal portion connected to the upper fastener of the outer wall by the joint bolt and the nut; a vertical portion rising vertically from one end of the first horizontal portion; 2. A mounting structure for an outer wall panel below a beam according to claim 1, wherein said outer wall panel is formed in a bent shape by a second horizontal portion fixed to a lower portion of said outer panel.

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