JPH0714501Y2 - PC wall panel mounting device - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a mounting device for a PC wall panel.

[Prior Art] PC wall panels, such as lightweight cellular concrete wall panels, are widely used in modern buildings.

By the way, in the past, this type of PC wall panel was mainly installed by so-called wet type in which an anchor rebar is mainly projected on the concrete placing surface and this anchor rebar is inserted into the joint part of the PC wall panel and this part is filled with mortar. It was carried out by the construction method (see Fig. 6).

However, in this type of construction method, it is often difficult to fill the joint mortar locally, and it is unavoidable that the construction efficiency is reduced.In addition, after the joint mortar is filled, the PC wall panel may be damaged by the drying shrinkage of the joint mortar. There was a risk of cracking.

Moreover, since the PC wall panel and the concrete skeleton and the PC wall panel are integrated by the joint mortar, the PC wall panel cannot be sufficiently deformed to follow the deformation of the skeleton during an earthquake, etc., which may even cause brittle fracture. Although various mounting methods have been devised, many of them have complicated configurations.

By the way, the applicant of the present invention has also devised a method of mounting this type of PC wall panel (Japanese Utility Model Laid-Open No. 58-85008), but this method is as shown in FIGS. 7 and 8 of the present application. A reinforcing steel material 22 such as steel extends along the wall core, a bar member 8 is projectingly provided on the horizontal flange portion of the reinforcing steel material 22, and the PC wall panel 10 is installed on the horizontal flange portion of the reinforcing steel material 22. At the same time, the rod member 8 is supported by being inserted into the vertical hole 11 on the lower end surface of the PC wall panel.

[Problems to be solved by the device]

However, according to this mounting method, since the entire lower end portion of the PC wall panel 10 is supported by the reinforcing steel material 22, the locking deformation may not be sufficiently performed.

This invention was proposed in order to solve the above-mentioned conventional problems, and it is possible to accurately build a PC wall panel on a concrete placing surface with a lot of unevenness, and the construction efficiency is extremely high. In addition, there is no concern that cracks will occur due to the mounting method of the PC wall panel after construction, and the PC wall panel that can be sufficiently deformed to follow the deformation of the body without causing brittle fracture The purpose is to provide a mounting device.

[Means for Solving the Problems]

This invention is a bolt for height adjustment on the concrete placing surface.
A horizontal mounting piece fixed to the height adjusting bolt 19 and a horizontal receiver projecting above the height adjusting bolt 19 on the concrete placing surface. Anchor metal fitting 4 comprising a piece is attached, and a bar member 8 is vertically installed on the horizontal receiving piece of the anchor metal fitting 4,
In addition, the PC wall panel 10 is placed on the anchor metal fitting 4 so as to be supported at one place, and the PC wall panel 10 is mounted.
It is configured by inserting the rod member 8 into the vertical hole 11 formed in the lower end surface of the.

In such a configuration, the anchor metal fitting 4 has the same structure as that shown in FIGS.
As shown in the figure, a horizontal mounting piece fixed to the height adjusting bolt 19 projecting on the concrete placing surface,
The height adjusting bolt is provided with a horizontal receiving piece that is located above the height adjusting bolt.

The rod member 8 may be attached to the horizontal receiving piece 4b as shown in FIG. 4, or may be attached to the horizontal attaching piece 4c to which the height adjusting bolt 19 is attached as shown in FIG. .

As shown in FIG. 4, a base plate 9 may be attached to the lower end portion of the rod member 8, and the base plate 9 may be attached to the anchor metal fitting 4.

In the case of the example of FIG. 4, the lower end of the PC wall panel 10 is placed on the horizontal receiving piece 4b projecting at a position higher than the height adjusting bolt 19 of the anchor metal fitting 4, and therefore, Pc wall panel
The lower end surface of 10 is raised a predetermined height above the concrete pouring surface.

〔Example〕

The present invention will be described below with reference to an illustrated embodiment (see FIGS. 1 to 4).
A plurality of height adjusting bolts 19 are projected at predetermined intervals along the wall core of the wall constructed on the "concrete body 1"), and the concrete is inserted through the height adjusting bolts 19. Anchor metal fittings 4 for adjusting the unsteadiness are attached to the body 1 at regular intervals.

The anchor metal fitting 4 is a horizontal mounting piece 4a fixed to the height adjusting bolt 19 and a horizontal projection that is positioned above the height adjusting bolt 19 and horizontally between the horizontal mounting pieces 4a. It has a receiving piece 4b and has a substantially hat-shaped cross section.

A bolt insertion hole (not shown) is formed in the left and right horizontal mounting pieces 4a, and the anchor metal fitting 4 is fixed on the concrete frame 1 by inserting a height adjusting bolt 19 into this bolt insertion hole. .

The height of the anchor metal fitting 4 can be adjusted by interposing a height adjusting washer 21a between the concrete frame 1 and the horizontal mounting piece 4a, so that the anchor metal fitting 4 can be easily positioned.

On the horizontal receiving piece 4b of the anchor metal fitting 4, a bar member 8 made of a reinforcing bar or the like is vertically provided upright.

A substantially circular plate-shaped base plate 9 is integrally attached to the lower end portion of the rod member 8, and by welding this base plate 9 to the horizontal receiving piece 4b of the anchor metal fitting 4, the rod member 8 is horizontally supported by the anchor metal fitting 4. It is erected on the piece 4b.

Further, the PC wall panel 10 is placed on the horizontal receiving piece 4b of each anchor fitting 4.

A vertical hole 11 having a diameter slightly larger than that of the rod member 8 and deeper than the length of the rod member 8 is formed vertically in the substantially central portion of the lower end surface of the PC wall panel 10. The rod member 8 is inserted.

The opening end of the vertical hole 11 is formed in a trumpet shape so that the rod member 8 can be easily inserted, and a substantially circular recess 12 is formed on the opening end surface of the vertical hole 11, and the rod member 8 is inserted in the recess 12. The base plate 9 of 8 is fitted.

Further, a space between the concrete frame 1 and the PC wall panel 10 is filled with a filling mortar 13, a fireproof cushioning material 14, and a sealing material 15, if necessary.

In this case, the stuffed mortar 13 is filled on both sides of the anchor metal fitting 4 in order to enhance the mounting strength of the anchor metal fitting 4 and ensure fire resistance.
Is buried. Further, the fire resistant cushioning material 14 is continuously filled between the anchor metal fittings 4 and 4 in the width direction of the PC wall panel 10.

At the upper end of the PC wall panel 10, for example, the center in the width direction is fixed to the concrete skeleton via a mounting fastener (not shown) with an embedded nut (not shown) and a bolt (not shown), and the bolt joint is rotated. It is mounted so that locking deformation is possible.

In such a structure, if the concrete frame 1 is greatly deformed due to horizontal force due to a large earthquake, etc., the PC wall panel
Since one end of the lower end surface of 10 is supported by one anchor metal fitting 4, the lower end of the PC wall panel 10 is raised by the anchor metal fitting 4 and is not in contact with the concrete skeleton 1. Since the rod member 8 is inserted into the vertical hole 11 at the lower end of the wall panel 10, the PC wall panel 10 can be locked to the left and right around the anchor metal fitting 4 (see FIG. 3).

As shown in the embodiment, if the vertical hole 11 on the lower end surface of the PC wall panel 10 is formed slightly larger than the rod member 8, the locking deformation of the PC wall panel 10 can be further increased.

FIG. 5 shows another embodiment of the anchor metal fitting 4, which is a horizontal mounting piece fixed to the height adjusting bolt 19.
4c and the height adjustment bolts 19 on both ends of this horizontal mounting piece 4c.
And a horizontal receiving piece 4d which is positioned on the upper side of and is horizontally provided so as to have a substantially inverted cross-section.

A bolt insertion hole (not shown) is formed in the horizontal mounting piece 4c,
The anchor metal fitting 4 is fixed on the concrete frame 1 by inserting the height adjusting bolt 19 into the bolt insertion hole.

In this case, the anchor metal fitting 4 is fixed to the height adjusting bolt 19 by an upper nut 5 and a lower nut (not shown) screwed respectively on the upper side and the lower side of the horizontal mounting piece 4c, and the anchor metal fitting 4 is fixed. The height can be adjusted freely.

Further, the bar member 8 is erected vertically on the horizontal mounting piece 4c. In this case, a welded portion 8a is formed at the lower end of the bar member 8 by bending this portion at a substantially right angle.
The bar member 8 is erected on the horizontal mounting piece 4c of the anchor metal fitting 4 by welding 8a to the horizontal mounting 4c.

Further, the PC wall panel 10 is placed on the left and right horizontal receiving pieces 4d of the anchor metal fitting 4, and the rod member 8 is inserted into the vertical vertical hole 11 formed in the lower end surface of the PC wall panel 10. Other configurations are substantially the same as those in the first embodiment.

In such a structure, if the concrete frame 1 is greatly deformed due to horizontal force due to a large earthquake, etc., the PC wall panel
One end of the lower end surface of 10 is supported by one anchor metal fitting 4, so that the lower end portion of the PC wall panel 10 is not raised by the anchor metal fitting 4 and is not in contact with the concrete skeleton 1. Since the rod member 8 is inserted into the vertical hole 11 at the lower end of the PC wall panel 10, it is possible to lock the PC wall panel 10 left and right around the anchor metal fitting 4 as in the case of the first embodiment (third embodiment). See figure).

[Effect of device]

The present invention is configured as described above and has the following effects.

Since the lower end of the PC wall panel is supported by the anchor metal fittings on the concrete placing surface, dare to fill the joint mortar between the concrete placing surface and the lower end of the PC wall panel to support the PC wall panel. It is not necessary to do so, and labor saving in construction can be achieved by omitting joint mortar filling work.

The lower end of the PC wall panel is supported by an anchor metal fitting on one side of the concrete placing surface, and the rod member erected on the anchor metal fitting is inserted into the vertical hole formed in the lower end surface of the PC wall panel. Therefore, as shown in Fig. 3, it is possible to sufficiently deform by the rocking to follow the deformation of the skeleton, and the PC wall panel is raised by the anchor metal fittings. Since the whole is not in contact with rigid members such as reinforced steel or concrete pouring surface, there is no fear of damaging the lower end surface of the PC wall panel during rocking deformation, and in the event of an earthquake
It can prevent brittle fracture of PC wall panels and has excellent earthquake resistance.

Also, when mounting parts such as reinforcing steel are exposed on the surface of the PC wall panel, it is necessary to cover the exposed parts, which limits the specifications of the finish.
Since it is not exposed on the surface of the PC wall panel, the finish of the wall surface is not restricted.

In addition, the anchor metal fitting has a horizontal mounting piece that is fixed to the height adjustment bolt and a horizontal receiving piece that is projectingly located above the height adjustment bolt and on which the PC wall panel is installed. Due to its shape, it is easy to attach to the height adjustment bolts, and it is possible to install the PC wall panel on the concrete placing surface, which is relatively rough, with extremely high accuracy. Further, the production cost can be reduced by mass-producing anchor metal fittings.

It should be noted that, as shown in the examples, if a fire resistant cushioning material is filled between the concrete placing surface and the PC wall panel, it effectively functions as a cushioning material.

[Brief description of drawings]

FIGS. 1 and 2 show an embodiment of the present invention. FIG. 1 is a longitudinal sectional view showing a mounting state of a lower end portion of a PC wall panel, FIG. 2 is a front view thereof, and FIG. 3 is a PC wall. FIG. 4 is an explanatory view showing a locking deformation mechanism of the panel, FIG. 4 is a perspective view showing a positional relationship between the anchor fitting and the rod member, and FIG. 5 is a positional relationship between the anchor fitting and the rod member in another embodiment of the present invention. Perspective view,
6 and 7 are perspective views showing a conventional mounting method of the lower end portion of the PC wall panel, and FIG. 8 is a sectional view of FIG. 1 ... Concrete frame (concrete pouring surface), 4 ...
… Anchor fittings, 5 …… Upper nuts, 8 …… Bar members, 9
…… Base plate, 10 …… PC wall panel, 11 …… Vertical hole,
12 ... recess, 13 ... filled mortar, 14 ... fireproof cushioning material,
15 …… Sealant, 19 …… Height adjusting bolt, 21 ……
A washer for height adjustment.

Claims (1)

[Scope of utility model registration request] 1. A height adjusting bolt on a concrete placing surface.
A horizontal mounting piece fixed to the height adjusting bolt 19 and a horizontal receiver projecting above the height adjusting bolt 19 on the concrete placing surface. Anchor metal fitting 4 comprising a piece is attached, and a bar member 8 is vertically installed on the horizontal receiving piece of the anchor metal fitting 4,
In addition, the PC wall panel 10 is placed on the anchor metal fitting 4 so as to be supported at one place, and the PC wall panel 10 is mounted.
A mounting device for a PC wall panel, characterized in that the rod member 8 is inserted into a vertical hole 11 formed in the lower end surface of the PC wall panel.