JPH0734085Y2 - Concrete panel mounting structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete panel mounting structure capable of safely and efficiently mounting a concrete panel without welding work.

[0002]

2. Description of the Related Art In recent years, an increasing number of houses are manufactured by a dry method in which floors, walls and the like are formed by using panel bodies such as floor panels and wall panels. In particular, for the outer wall panel forming the outer wall of the house, a concrete panel is used to improve fire resistance and heat insulation.

On the other hand, conventionally, such a concrete panel is mounted by, for example, as shown in FIG. 6, after the concrete panel p is fitted between the upper and lower L-shaped fittings a and b, and then installed. Using hook bolts e and e which are nut-fastened to the concrete panel p, the respective hook parts e
The upper and lower ends of the concrete panel p are fixed by engaging 1 with the upper and lower mounting brackets a and b, while the hook portion e1 and the upper and lower mounting brackets a and b are welded to each other to prevent the slip-off. It was being appreciated.

[0004]

However, in such a conventional one, since the upper and lower ends of the concrete panel p are fixed with the hook bolts e, respectively, the number of man-hours for bolt connection is increased, and moreover, at the construction site. Since it is necessary to weld the hook bolt e and the fittings a and b, the on-site construction efficiency is greatly reduced, the construction cost is increased and the construction period is delayed.

Further, since the welding work itself is dangerous and requires work at a high place, the safety is greatly impaired.

The present invention is based on the fact that the connecting metal fittings laid over the upper and lower panel receiving metal fittings and the concrete panel are bolted together, the man-hours for bolting can be halved, and welding work at the construction site can be eliminated, which is safe. The purpose of the invention is to provide a concrete panel mounting structure that can improve workability and shorten the construction period.

[0007]

In order to achieve the above object, a concrete panel mounting structure according to the present invention is provided with a rising piece along the back surface of the concrete panel at the back edge of a receiving piece for supporting the lower end of the concrete panel. Between the lower panel receiving metal fitting to be provided and the upper panel receiving metal fitting having a hanging piece along the upper end back surface of the concrete panel, a connecting metal fitting that vertically spans between the rising piece and the back surface of the hanging piece is bridged. The connection fitting and the concrete panel are bolted together.

[0008] It is preferable that the connecting fitting has a spring piece on an outer surface facing the back surface of the concrete panel, the spring piece being pressed against the back surface by the bolting. $

[Operation] Since the concrete panel is fixed to the upper and lower panel receiving metal fittings by bolting the concrete panel and the connecting metal fitting, welding work can be eliminated when mounting the concrete panel, and the work safety is improved and the on-site construction efficiency is improved. Can be improved. In particular, since it is not necessary to secure a welding worker, which is a special work, the construction cost can be further reduced and the number of bolt connecting steps can be reduced by half.

Further, when the connecting piece is provided with a spring piece for pressing the back surface of the concrete panel by bolting, the spring piece can be brought into close contact with the concrete panel, and its mounting strength can be increased.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete panel p is attached to an opening frame 12 forming an opening O of a house by using an embodiment of the present invention.
The case of mounting will be described as an example with reference to the drawings.

The opening frame 12 is a base frame for forming an outer wall surface having an opening O such as a window between the upper and lower beam members H1 and H2, and as shown in FIG.
By joining the central portions of a pair of vertically extending vertical frame members 13, 13 to each other with horizontal upper and lower horizontal frame members 14, 15, the upper and lower horizontal frame members 14, 15 and the vertical frame member 13 are joined. 1
A rectangular opening O surrounded by 3 and 3 is formed. The opening frame 12 is supported by the beam members H1 and H2.

The beams H1 and H2 are made of the web 4 in this example.
0 is formed from I-shaped steel in which flanges 41 and 42 are stretched above and below, respectively, and each beam H1 and H2 is a bolt 45 that is bolted to the web 40 and extends to the outside 45.
At the outer end, carry-out metal fittings 24A, 24B each having a U-shaped base formed by bending horizontal pieces 46, 47 up and down are fixed.

Further, the horizontal piece 4 below the upper carry-out metal fitting 24A.
7 has a hanging piece 49 extending along the inner surface of the outer wall, the L-shaped upper metal fitting 16 is horizontally supported, and the horizontal piece 46 above the lower metal fitting 24B has a rising piece 7 extending along the inner surface of the outer wall. For example, a T-shaped lower metal fitting 17 is horizontally supported, and the opening frame 1 is provided between the upper metal fitting 16 and the lower metal fitting 17.
Bolt 2

Further, in the opening frame 12, an opening for forming a window is formed in the opening O between the upper and lower horizontal frame members 14 and 15 through fittings 50 provided on the upper and lower horizontal frame members 14 and 15. While the sash S is attached, the lower concrete panel P1 is provided between the lower horizontal frame member 15 and the lower metal fitting 17, and the upper concrete panel P2 is provided between the upper metal fitting 16 and the upper horizontal frame material 14. Each is built to form an outer wall with an opening.

In this example, the concrete panel P below
The concrete panel mounting structure of the present invention is adopted to assemble 1 of the present invention. Therefore, in this example, the lower panel support metal fitting 3 of the present invention that supports the lower end of the concrete panel P1 by the lower metal fitting 17 is also used. Each of the upper panel support fittings 4 of the present invention that supports the upper end of the concrete panel P1 by the frame member 15 is configured.

The concrete panel P1 is a horizontally long rectangular shape having a width across the pair of sub-frame members 13 forming the opening frame 12 and a height across the upper and lower panel brackets 4, 3. As a concrete material having a plate shape, ACL in which aluminum powder is added to a mixture of a cement raw material and lime is preferably used. The ACL has a high heat insulating property due to the formation of a large number of closed cells as it solidifies during curing.

Further, the concrete panel P1 is provided with a hole 29-for inserting the bolt 10 substantially on the center line in the vertical direction, and the hole 29 is provided inside the concrete panel P1.
A nut piece 31 in which a screw hole 30 concentric with that is screwed is embedded.

The upper panel support 4 is provided on the back edge of the horizontal piece 21 that abuts on the upper surface of the concrete panel P1.
In this example, a vertical hanging piece 9 is provided which is bent downward from the back edge along the upper end and the back surface of the concrete panel P1. In this example, a base body having an L-shaped cross section is provided, and an L-shaped metal fitting 37 is welded to both ends of the hanging piece 9. , 37 and bolted to the vertical frame members 13, 13. The outer surface of the hanging piece 9 is the vertical frame member 1
3 It is arranged on the substantially same surface by aligning with the outer surface,
The back surface of the concrete panel P1 is supported together with the vertical frame member 13.

The lower panel bracket 3 is made up of the beam H
2 and a horizontal receiving piece 6 that abuts the lower surface of the concrete panel P1 and supports the lower end of the concrete panel P1, and rises at a right angle from the back edge of the receiving piece 6 and on the back surface of the concrete panel P1. In this example, a horizontal fixing piece 23 is projected to the back edge of the receiving piece 6 of the L-shaped base body 3A made up of a rising piece 7 extending along it, and a panel having a reverse T-shape is formed. The receiving metal fitting 3 has a horizontal piece 46 on the carrying-out metal fitting 24B fixed to the fixing piece 23 and the beam H2.
And are fixed to the beam H2 horizontally by bolting. In this example, the lower end of the vertical frame 13 is bolted to the upper surface of the fixing piece 23.

Then, the concrete panel P1 is bolted by using the connecting metal fitting 5 which is bridged between the upper and lower panel receiving metal fittings 4, 3.

As shown in an enlarged view in FIG. 3, the connecting fitting 5 is in the form of a rectangular plate in the present embodiment, which is in contact with the rear surfaces of the rising piece 7 and the hanging piece 9 and extends vertically between the rear surfaces. 5A is formed of a shaped steel material having a substantially U-shaped cross section, which is provided with reinforcing bending pieces 5B and 5B which are bent at right angles toward the inside of the house on both side edges of 5A. In addition, a bolt insertion hole 11 for inserting the bolt 10 is bored at a position substantially aligned with the hole 29 of the concrete panel P1 in a substantially central portion of the base plate 5A of the connecting fitting 5.

Further, the substrate 5A has an outwardly facing surface A
Projecting pieces 32A, 32B that project outward from the engaging member 9 and engage with the lower edge of the hanging piece 9 and the upper edge of the rising piece 7, for example, are formed by cutting and raising the substrate 5A to perform positioning and rotation prevention. The projecting ends of the projecting pieces 32A and 32B terminate in a substantially uniform manner without projecting outwardly from the outwardly facing surfaces of the hanging piece 9 and the rising piece 7, and make an abutment with the concrete panel P1. To prevent.

As described above, the connecting fitting 5 is hung with the concrete panel P1 by screwing the bolt 10 passing through the bolt insertion hole 11 and the hole 29 to the nut piece 31 in the concrete panel P1. 9 and startup piece 7
Can be supported by narrow pressure, and the upper and lower ends of the concrete panel P1 can be bolted efficiently with one connecting fitting 5.

Further, since the connecting fitting 5 is provided with the projecting pieces 32A and 32B, the connecting piece 5 is not displaced during the screwing and can be prevented from being detached from the hanging piece 9 and the rising piece 7 even after the screwing. It is possible to attach the concrete panel P1 firmly and securely without requiring welding.

In the present embodiment, the above concrete panel P2 is similarly fixed by the connecting fitting 5. That is, the horizontal frame body 14 above the opening frame 12
In this example, the lower horizontal frame body 15 is turned upside down to form the same cross-sectional shape, thereby forming the rising piece 53 along the back surface of the concrete panel P2 at the back edge of the receiving piece 52 supporting the lower end of the concrete panel P2. is doing.

Therefore, the connecting metal fitting 5 vertically extends between the hanging piece 49 of the upper metal fitting 16 and the rear surface of the rising piece 53 of the upper horizontal frame body 14, and the concrete panel P2 can be attached by using the bolt 10. . That is, in this example, the upper metal fitting 16 is an upper panel metal fitting of the present invention that supports the upper end of the upper concrete panel P2, and the upper horizontal frame body 14 is the lower panel metal fitting that supports the lower end of the upper concrete panel P2. Is functioning as.

As shown in FIGS. 4 and 5, the connecting fitting 5 is a spring piece which is pressed against the rear surface of the concrete panel P1 by the bolting against the outer surface A facing the rear surface of the concrete panel P1. It is desirable to provide B. In this embodiment, the spring pieces B are widened outward at both ends of a rectangular plate B1 fixed to the outward surface A and having a hole portion concentric with the bolt insertion hole 11 formed therethrough. Spring plates B2 and B2 having outer ends projecting from the outward surfaces of the rising piece 7 and the hanging piece 9 are provided, and the bolt insertion hole 1
When the bolt 10 passing through 1 is screwed to the nut piece 31, the spring plates B2 and B2 are in a widened state, and the restoring force of the spring piece B allows the spring piece B to be in close contact with the back surface of the concrete panel P1. It is possible to greatly improve the attachment strength of the above and prevent the detachment from the hanging piece 9 and the rising piece 7 after the screwing due to the frictional force between the spring piece B and the concrete panel P1.

The spring pieces B may be provided above or below the bolt insertion hole 11, or a plurality of spring pieces B may be provided on the outward surface A.

[0029]

[Effect of the Invention] As described above, the concrete panel mounting structure of the present invention eliminates welding work at the construction site because the concrete panel is bolted using the connecting metal fittings that are bridged between the upper and lower panel receiving metal fittings. It is possible to significantly improve the on-site construction efficiency and improve safety. In addition, the number of bolt connecting steps can be reduced by half, and the problems associated with welding, that is, the reduction in mounting strength and mounting accuracy can be effectively prevented, and many effects such as reliability can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an embodiment of the present invention.

FIG. 3 is an enlarged perspective view showing an embodiment of the present invention.

FIG. 4 is a perspective view showing another embodiment of the present invention.

FIG. 5 is a cross-sectional view showing another embodiment of the present invention.

FIG. 6 is a cross-sectional view showing a conventional technique.

[Explanation of symbols]

 P1, P2 Concrete panel 3 Lower panel bracket 4 Upper panel bracket 5 Connecting bracket B Spring piece

Claims (2)

[Scope of utility model registration request] 1. A panel receiving metal fitting having a rising piece extending along the back surface of the concrete panel at the back edge of the receiving piece supporting the lower end of the concrete panel, and a hanging piece extending along the back surface of the upper end of the concrete panel. A mounting structure for a concrete panel, in which a connecting metal fitting that vertically extends between the rear surfaces of the rising piece and the hanging piece is bridged between the panel receiving metal fitting and the connecting metal fitting and the concrete panel. 2. The connecting fitting comprises a spring piece on an outer surface of the concrete panel facing the rear surface, the spring piece being pressed against the rear surface by the bolting. Concrete panel mounting structure.