JPH0638971Y2 - Wall panel mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a wall panel mounting structure with improved seismic resistance.

(Prior Art) As a type of wall panel mounting structure, for example, a horizontal wall bolting groove method is known in which a large number of lightweight cellular concrete panels (hereinafter referred to as “ALC panels”) are horizontally mounted on a frame to form an outer wall of a building. ing. As schematically shown in FIG. 6, hook bolts 2 are fixed to the left and right ends of each ALC panel 1 in a penetrating state, and the tips of the hook bolts 2 are welded to a pillar 3 of a skeleton. Further, a receiving steel material 4 made of L-shaped steel is welded to the pillar 3 for every five ALC panels, for example, to support the lower end surfaces of the left and right ALC panels 1. The hook bolts 2 mainly receive a force acting in a direction perpendicular to the ALC panel 1, and the receiving steel member 4 receives the weight of the ALC panel 1.

(Problems to be solved by the invention) However, the body and the wall panel are relatively displaced during an earthquake. However, in the above-mentioned conventional configuration, since the pillar 3 and the ALC panel 1 are fixedly attached via the hook bolts 2, an unreasonable force acts on the ALC panel 1, which may cause cracking depending on the degree of displacement. May occur. When such a crack occurs, rainwater may invade through the crack and significantly damage the building, and the expansion of the crack may cause a dangerous situation such as a fragment of a wall panel falling. is there.

In order to avoid such a situation, for example, the following configuration can be considered. Embed anchor nuts in the ALC panel in advance. On the other hand, manufacturing a mounting plate with a horizontally long hole, movably mounting it on the ALC panel by inserting a bolt through the hole and screwing it into the anchor nut of the ALC panel, and welding the mounting plate to the pillar Etc. As a result, the ALC panel is allowed to move laterally with respect to the column by the length of the long hole.
It is possible to absorb the relative displacement with the C panel and prevent the ALC panel from being subjected to excessive force.

However, in the above configuration, the operator may erroneously overtighten the bolt to the anchor nut. Then, the mounting plate is fixed to the ALC panel with bolts, and it becomes difficult to allow the movement that should be allowed originally, so it is not possible to absorb the relative displacement between the column and the ALC panel at the time of an earthquake, and in the end, This causes a situation where cracks occur in the ALC panel.

The present invention has been made in view of the above circumstances, and an object thereof is to secure the movement allowance of the wall panel in a structure in which the wall panel is movably attached to the skeleton so that an unreasonable force is applied to the wall panel due to an earthquake or the like. It is an object of the present invention to provide a wall panel mounting structure capable of reliably preventing the extension and thus sufficiently improving the mounting durability and reliability.

[Structure of the Invention] (Means for Solving the Problems) The wall panel mounting structure according to the present invention is provided with an anchor nut embedded and fixed in the wall panel, and a mounting plate having a long hole and fixed to the body. Provided is a bolt member that penetrates the long hole of the mounting plate and has a tip portion screwed into the anchor nut, and a movement restriction that is fitted in a reduced diameter portion formed on the shaft portion of the bolt member in the radial direction. The structure is characterized in that a member is provided, and a gap larger than the thickness dimension of the mounting plate is formed between the movement restricting member and the head of the bolt member.

(Function) Since the mounting plate for mounting the wall panel has the long hole formed therein and the bolt member penetrates through the plate, the wall panel is allowed to move with respect to the body by the length of the long hole. . As a result, even if the wall panel and the frame are relatively displaced due to an earthquake or the like, the displacement can be absorbed and an unreasonable force does not act on the wall panel.

Moreover, the mounting plate is positioned so as to be sandwiched between the head of the bolt member and the movement restricting member, and the gap between the head and the movement restricting member is larger than the thickness of the mounting plate. Since it is large, the mounting plate is not pressed down by the bolt member, and the movement allowance with respect to the wall panel is surely guaranteed.

(Embodiment) An embodiment in which the present invention is applied to a lateral wall construction method of an ALC panel will be described with reference to FIGS. 1 to 4.

Figure 2 shows the overall structure as seen from the inside of the building. Each pillar 11 is constructed by using H-shaped steel, and each pillar 11 is H
ALC panel 12 that is a wall panel constructed using shaped steel
Are erected in a row at intervals equal to the longitudinal dimension of the.
2 of the pillars 11 on the outer wall side of the building and on the left and right sides
The through angle 13 of the book is fixed by welding along the pillars 11, and the ALC panels 12 are attached to the pillars 11 through the through angles 13 in a state where the ALC panels 12 are horizontally stacked between the pillars 11 and vertically stacked. The mounting structure of the ALC panel 12 group will be described in detail below. Anchor nuts 14 are preliminarily embedded near the left and right ends of each ALC panel 12, as shown in FIG.

The ALC panel 12 is divided into blocks, and the bottommost block of each block has a stepped fixing plate 16 fixed to the left and right sides of the block with bolts 15 screwed into anchor nuts 14. ing. The front end of the fixing plate 16 is welded to the through angle 13 so that the ALC panel 12 is fixed to the column 11.

The ALC panel 12 located above the lowermost stage is attached by a flat plate-shaped attachment plate 17 and a bolt member 18 in a state in which lateral movement relative to the column 11 is permitted. That is, the mounting plate 17 is formed with a long hole 17a extending in the lateral direction as shown in FIG. The bolt member 1
As shown in FIG. 4, 8 is a shaft portion 18a in which a thread groove is formed.
And a hexagonal head portion 18b, and the head portion of the shaft portion 18a.
The reduced diameter portion 18c is formed in a ring shape on the 18b side. A movement restricting member 19 made of, for example, a steel plate is fitted in the reduced diameter portion 18c. The movement restricting member 19 includes the reduced diameter portion 18c.
Has a thickness corresponding to, for example, a rectangular plate shape, and has an open groove 20 extending from the central portion to the lower edge portion. The open groove 20 has a wide portion 20a on the open side and a narrow portion 20b on the center side of the movement restricting member 19, and the width dimension of the narrow portion 20b is determined by the reduced diameter portion 18c of the shaft portion 18a. It is approximately the same as the diameter of the reduced diameter part. Therefore, this movement restricting member 19
As shown in FIG. 4, the bolt is inserted into the reduced diameter portion 18c of the bolt member 18 from above in the radial direction through the open groove 20 and finally fitted into the narrowed portion 20b by press fitting. Fixed. At this time, as shown in FIG.
The gap dimension a between the flat washer 21 fitted into the bolt member 18 and in contact with the head portion 18b and the movement restricting member 19 is set to be larger than the thickness dimension b of the mounting plate 17.

As shown in FIG. 3, the bolt member 18 has a shaft portion 18a.
The base end portion of, i.e., the portion between the flat washer 21 and the movement restricting member 19 penetrates the elongated hole 17a of the mounting plate 17, and is screwed into the anchor nut 14 until the movement restricting member 19 comes into contact with the surface of the ALC panel 12. And is fixed to the ALC panel 12, and in this state, the tip of the mounting plate 17 is welded to the through angle 13. In order to mount the bolt lower member 18 in the long hole 17a of the mounting plate 17 in a state of penetrating the bolt lower member 18, first, the bolt member 1 in which the plain washer 21 is inserted in advance in the long hole 17a of the mounting plate 17 is mounted.
8 is inserted to the head portion 18a, then the movement restricting member 19 is fitted to the reduced diameter portion 18c, and in this state, the bolt member 18 is fixed to the anchor nut 14 of the ALC panel 12 and the movement restricting member 19 is fixed to the ALC panel 12. It suffices to screw in until they come into contact with each other, and thereafter, the right end portion of the mounting plate 17 in the drawing is passed through and welded to the angle 13.

As a result, as shown in FIG. 3, the mounting plate 17 is
Head 18b (flat washer 21) of movement restricting member 19 and bolt member 18
A state in which the bolt member 18 is sandwiched from both sides by the axial movement of the bolt member 18 is restricted, and relative lateral movement with respect to the bolt member 18 within the formation range of the elongated hole 17a is permitted. Mounted on. Therefore, the mounting plate 17 is AL
It is fixed in a state in which the lateral movement relative to the C panel 12 is allowed. Further, since the gap dimension a between the movement restricting member 19 and the flat washer 21 is larger than the thickness dimension b of the mounting plate 17, the mounting plate 17 is freely movable with respect to the bolt member 18. Secured.

The ALC panel 12 mounted on each pillar 11 in this way
In order to receive its own weight, each pillar 11 is provided with a plurality of L-shaped steel receiving members 22 (see FIG. 2). Although not shown, the vertical and horizontal joints between the ALC panels 12 are filled with a flexible sealing material for waterproofing.

In the above configuration, even if the ALC panel 12 and the pillar 11 are relatively displaced in the lateral direction (the direction in which the elongated hole 17a extends) due to an earthquake, for example, the free movement of the mounting plate 17 with respect to the bolt member 18 causes the ALC to move. Since the panel 12 is allowed to shift with respect to the pillar 11 within the range of the long hole 17a of the mounting plate 17, the displacement can be absorbed.

Therefore, according to this embodiment, the mounting plate 17 is not pressed by the bolt member 18, and the ALC panel 1
Since the movement allowance with respect to 2 is surely guaranteed, it is possible to surely prevent the ALC panel 12 from being subjected to an unreasonable force due to an earthquake or the like, and thereby to sufficiently improve the durability and reliability of mounting.

Although the reduced diameter portion 18c of the bolt member 18 is formed in the ring groove shape in the above embodiment, as shown in FIG.
Both sides of the shaft portion 23a of 23 may be provided in a shape that is cut off in the vertical direction. Further, as shown in the figure, the shaft portion 23 of the bolt member 23
From a recess 23c to a head portion 23b of a, the thread may not be threaded.

Besides, the present invention is not limited to the embodiments described above and shown in the drawings. For example, the movement restricting member may be fixed to the bolt member by welding or the like, and the shape of the movement restricting member may be fixed. For example, various shapes such as a circular shape are conceivable, and various modifications can be made without departing from the gist.

[Effects of the Invention] As is clear from the above description, according to the wall panel mounting structure of the present invention, the wall panel is reliably guaranteed to move, and an unreasonable force is exerted on the wall panel due to an earthquake or the like. This has an excellent effect that it is possible to surely prevent this, and thereby to sufficiently improve the durability and reliability of mounting.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention, FIG. 1 is an enlarged perspective view of a main part with a part broken away, and FIG. 2 is a perspective view of an entire inside of a building. 3 is a vertical side view of the main part,
FIG. 4 is a perspective view of the bolt member and the movement restricting member.
FIG. 5 is a view corresponding to FIG. 4 showing another embodiment of the present invention, and FIG. 6 is a partially cutaway perspective view showing a conventional example. In the drawing, 11 is a pillar, 12 is an ALC panel (wall panel), 13 is a through angle, 14 is an anchor nut, 17 is a mounting plate,
17a is a long hole, 18 and 23 are bolt members, 18a and 23a are shafts, 18b and 2
3b is a head, 18c and 23c are reduced diameter parts, 19 is a movement restricting member, and 20 is an open groove.

Claims (1)

[Scope of utility model registration request] 1. A structure for attaching a wall panel (12) to a skeleton (11), the anchor nut (14) embedded and fixed in the wall panel (12) and the skeleton (1) having an elongated hole (17a).
Mounting plate (17) fixed to 1) and the long hole (17)
The bolt member (18) which penetrates a) and whose tip portion is screwed into the anchor nut (14) and the reduced diameter portion (18c) formed on the shaft portion (18a) of the bolt member (18) have a diameter. A movement regulating member (19) fitted from the direction, and the thickness dimension of the mounting plate (17) between the movement regulating member (19) and the head portion (18b) of the bolt member (18). A wall panel mounting structure with a larger gap than that.