JPS60133142A - Metal fittinfg for supporting heat insulating material - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a structure of a supporting metal for supporting insulating concrete on a steel two-in-board plate used for a floor or an inner wall in a building for an FBR (fast breeder reactor). Regarding.

[Background of the invention]

FBR (Fast Breeder React0
In a building containing a fast breeder reactor (the same applies hereafter), the floor, side walls and ceiling are formed by a steel liner plate, which is a plate-shaped metal member. This steel China plate uses sodium N as a refrigerant.
By using a, it is possible to prevent a chemical reaction between the building concrete and the sodium in the event that this sodium leaks, and the high temperature sodium will raise the temperature of the building concrete and significantly weaken the strength of the building concrete. This is to prevent it from dropping. Insulating concrete, which is usually an insulating material, is installed behind the steel lychee board. As described above, FBH buildings employ a lining structure in which a steel liner plate is laid on the surface of the concrete building via heat insulating concrete.

There are several methods for forming this lining structure. ■One is to install a steel liner plate in a predetermined position before pouring building concrete, and then pouring building concrete and insulation concrete. ■Alternatively, building concrete is poured into wooden formwork, etc., and after curing, the wooden formwork is removed, then insulating concrete is poured, and finally steel lychee plates are installed. .

Next, there is a type of integrated panel made of insulating concrete and steel lychee board that is manufactured in advance at a factory and then transported to the construction site for use. This integrated panel method has the advantage of improving workability at construction sites.

The present invention relates to metal fittings used for the integral panel in (1) and (2). FIG. 1 shows a state in which a conventional integral panel 1 is actually installed on a building concrete 2. As shown in FIG.

The integral panel 1 is produced by welding a plurality of rod-shaped metal studs 4 to the back side of a steel liner plate 3 at a factory, and then pouring insulating concrete 5 over the entire back side of the steel liner plate 3 and curing it. It is something to be manufactured. After transporting to a construction site and holding the integrated panel 1 in a predetermined position, building concrete 2 is poured and cured using the integrated panel as a formwork. In addition, stud 4 is building concrete 2
It acts as an anchor for

[Problems with the invention]

The conventional integrated panel has the following problems.

The insulating concrete 5 is bonded to the steel lychee plate 3 by the presence of the studs 4 rather than by a force that sticks directly to the lychee plate 3.
It is integrated with.

In other words, in response to the force that causes the insulating concrete 5 to peel off from the steel liner plate 3, the insulating Kogacrete 5 resists the stud 4.
It was opposed by the adhesive force attached to the surface. Therefore, in order to strengthen the integrated force of the integral panel 1, it was necessary to increase the number of studs 4.

However, when the temperature of the steel lychee plate 3 rises due to the above-mentioned leakage of 1 Lium, etc., the steel lychee plate 3 undergoes thermal expansion. The in-plane force generated on the steel liner plate 3 due to this thermal expansion is usually reduced by the steel liner plate 3 buckling out of plane (plate buckling), increasing the strength of the steel lychee plate 3.
becomes less likely to buckle. Therefore, the in-plane force of the steel two-dimensional plate 3 is difficult to be reduced, and an excessive load is applied to the steel litchi plate 3. This is the strength design of buildings, especially F'
This was unfavorable in terms of the strength design of the BR building.

[Purpose of the invention]

The present invention has been made in view of the above problems, and its purpose is to support a heat insulating material that can strengthen the integration force of the steel lychee plate and the heat insulating concrete in an integrated panel without increasing the number of studs. The purpose is to provide hardware.

[Summary of the invention]

One end of the insulation support hardware of the present invention is attached to the back surface of the steel lychee plate, and the other end penetrates through the insulation concrete and is exposed on the back surface of the insulation concrete, and the cross-sectional area of this exposed end is the cross-sectional area inside the insulation concrete. It is larger than . The heat insulating material supporting hardware is usually considered to have a generally rod-like shape as a whole, but it is not necessarily limited to a rod-like shape, but may also have an elongated rectangular shape as a whole.

As a result, the integrated force of the integrated panel is not only the adhesion force on the surface of the insulation support hardware, but also the compressive force between the exposed end, which has a large cross-sectional area, and the steel lychee plate, so It becomes powerful.

It is conceivable that this heat insulating material supporting hardware be attached to the steel lychee plate by welding, but it is also conceivable that it be freely removable by means of bolts. That is, a bolt hole is provided at the end of the heat insulating support metal on the side of the steel lychee plate, and a bolt is inserted into the bolt hole from the surface of the steel lychee plate through a hole drilled in the lychee plate and tightened. According to this bolt installation, the bolts can be removed after the lining structure for the floor and side walls of the building has been formed.
Buckling of the steel liner plate 3 becomes easier, which is preferable in terms of strength design. Note that the unifying force of the integrated panel is particularly required during transportation to a construction site and during construction, but it is not required to be so strong after construction is completed.

Further, a separator may be attached to the exposed end of the heat insulating support metal piece with screws. This separator is used to maintain the position of the integral panel when the integral panel is also used as a building concrete pouring form. Conventionally, the separator was attached and maintained in position by welding or wrapping a wire around the stud. However, as described above, if the screws are used for attachment, welding or wire work is not required, which improves work efficiency.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 2 to 6. A plurality of studs 4 are welded and arranged at predetermined positions on the back surface of the steel two-inner plate 3, as in the conventional case. In addition to the studs, a heat insulating support metal fitting 11 is provided in order to strengthen the integration force of the integrated panel. The heat insulating material supporting hardware 11 has a generally rod-like shape as a whole, and one end is attached to the back surface of a steel litchi plate with a bolt 12. This bolt 12 is inserted from the surface of the steel liner plate 3 through a hole 13 made in the steel liner plate 3, and is screwed into a bolt hole 14 provided at the end of the heat insulating material support hardware 11. . On the back side of the steel litchi plate 3, a heat insulating material 15 made of pearlite concrete, which is heat insulating concrete, is cast as in the conventional case. Further, building concrete 2 is placed on the back side of this pearlite concrete heat insulating material 15. The stud 4 has the function of integrating the steel lychee plate 3, the pearlite concrete heat insulating material 15, and the building concrete 2. The heat insulating material supporting hardware 11 penetrates through the heat insulating material 15 made of pearlite concrete and enters into the building concrete 2. A screw hole 16 is formed at the end of the heat insulating support hardware 11 on the building concrete side. A threaded portion 18 formed at one end of a rod-shaped separator 17 is inserted into this threaded hole 16 and tightened.

Next, the shape of the heat insulating material supporting hardware ll itself will be explained. The heat insulating material support hardware 11 of this embodiment has a generally rod shape as a whole,
The exposed end exposed on the back side of the pearlite concrete heat insulating material 15 has a cross-sectional area larger than the cross-sectional area within the cross-sectional concrete. A screw hole 16 is provided in the center of this exposed end surface, and a rod-shaped separator can be attached thereto. A bolt hole 1 for tightening a bolt 12 is formed in the end surface attached to the back surface of the steel litchi plate 3.

The working order of the process of forming a lining structure consisting of building concrete 2, pearlite concrete heat insulating material 15, and steel liner plate 3 using heat insulating support hardware 11 of this example will be described below.

First, at the factory, studs 4 are attached to the back side of the steel lychee plate 3.
are welded and the heat insulating material supporting hardware 11 is attached with bolts 12. After that, a pearlite concrete heat insulating material 15 is placed on the back side of the steel liner plate 3 and cured. In this way, an integrated panel 1 is manufactured. This integrated panel 1 is FB
Transported to the building construction site of R. Then, a rod-shaped separator 17 is attached to the exposed end of the heat insulating material support hardware 11. This attachment is performed by screwing a threaded portion 18 formed at one end of the separator 17 into a threaded hole 16 at the exposed end. At the other end of this separator 17, a fifth
As shown in the figure, a threaded portion 19 is provided which is inserted into a hole 21 provided in a wooden formwork 20 on the outer surface of the building concrete 2. Then, the integral panel 1 is tightened with nuts 22 and serves as a formwork for the inner surface of the building concrete 2. After that, building concrete 2 is poured and cured. After the lining structure is completed in this way, the bolts 12 are removed. Then, as shown in FIG. 6, a hole closing plug 22 is attached to the hole 13 of the steel liner plate 3 after it has been removed, and a seal welding 23 is performed to the steel liner plate 3.

The operation of this embodiment will be described below.

If the integral panel 1 is manufactured by the conventional method without using the heat insulating material support hardware 11 according to this embodiment, the pearlite concrete heat insulating material 15 will be attached to the steel liner plate 3 mainly on the surface of the studs 4. They will be joined by force alone.

Therefore, in order to strengthen the integration force of the integrated panel l, it is necessary to increase the number of studs 4. However, as mentioned above, the temperature of the steel liner plate 3 increases due to sodium leakage, etc. When the steel liner plate 3 is about to thermally expand, if the number of studs 4 is large, buckling of the steel liner plate 3 is prevented and the in-plane force of the steel liner plate 3 becomes excessive, which is unfavorable in terms of strength design. However, according to this embodiment, the sybarite concrete heat insulating material 15 can be strongly bonded to the steel liner plate 3 by the compressive force between the exposed end of the heat insulating material support hardware 11 and the steel liner plate 3. , which can strengthen the unifying power of the integrated panel. Therefore, the number of studs 4 can be reduced and the above-mentioned problems can be solved.

Furthermore, in this embodiment, after the lining structure is completed, the bolt 12
Since the steel liner plate 3 can be removed, buckling of the steel liner plate 3 becomes easier. It should be noted that strengthening the integration force of the integrated panel is required during transportation and construction of the integrated panel, and after construction is completed, the same level of integration force as before is sufficient.

Furthermore, conventionally, when using the integral panel 1 as a formwork for building concrete 5, it was necessary to weld or wrap the stud 4 around the separator 17 with wire in order to maintain the position of the integral panel l as the formwork. There was, but
A screw hole 16 for attaching a separator 17 is formed at the exposed end of the heat insulating support metal fitting 11 of this embodiment.
This eliminates the need for welding work, wire wrapping work, etc., and improves work efficiency.

[Other Examples]

In the above embodiments, the heat insulating concrete was the heat insulating material 15 made of perlite concrete, but the present invention can be applied to other heat insulating concretes, such as aerated concrete, rock wool concrete, asbestos concrete, and vermiculite mortar.

Although the heat insulating material supporting metal fitting 11 in the above-mentioned embodiment has a generally rod-like shape as a whole, the heat insulating material supporting metal fitting 11 of the present invention is not limited to this, and may have an elongated rectangular shape as a whole. Even in this case, the effects of the present invention can be achieved as long as the exposed end on the back surface of the insulating concrete is thicker than the cross-sectional area inside the insulating concrete.

Furthermore, in the embodiment described above, the heat insulating material supporting hardware 11 was attached to the steel liner plate 3 using bolts 12, but it may be attached by welding. This is because even if welding is used, the force for joining the insulating concrete to the liner plate can be strengthened, so the number of studs 4 can be reduced.

Further, in the embodiment described above, the heat insulating material supporting hardware 11 and the stud 4 are separate bodies, but the heat insulating material supporting hardware 11 may also serve as the stud 4 in other embodiments. That is, a portion with a large cross-sectional area may be formed midway in the longitudinal direction of the stud 4, and the insulating concrete may be compressed between the portion with the large cross-sectional area and the steel liner plate 3.

〔Effect of the invention〕

According to the heat insulating support metal fitting of the present invention, the heat insulating concrete can be joined to the liner plate not only by the adhesion force on the surface of the heat insulating support metal piece but also by the compressive force between the exposed end and the liner plate. Therefore, the number of studs can be reduced, and as a result, it is possible to easily buckle the liner plate and provide an integrated panel that is advantageous in terms of strength design.

[Brief Description of the Drawings] Fig. 1 is a perspective view showing a conventional integrated panel installed on building concrete, and Fig. 2 is a front view of an integrated panel using a heat insulating support metal fitting according to an embodiment of the present invention. 3 are cross-sectional views of FIG. 2, and FIGS. 4 to 6 are enlarged views of main parts of FIG. 3. 1... Integral panel, 2... Building concrete, 3.
...Steel liner plate, 4...Stud, 5...Insulating concrete, 11...Insulating material support hardware, 12...Bolt, 13...Hole, 14...Bolt hole, 15...・・・
Perlite concrete insulation, 16 screw holes,
17...Separator, 18...Threaded part, 19...
Screw part, 20... Wooden formwork, 21... Hole, 22...
・Hole closing plug, 23...Seal welding. Agent Patent Attorney Tatsuyuki Unuma Figure 1

Claims (1)

[Claims] 1. In the process of forming a lining structure by laying steel lychee plates on the surface of building concrete via heat insulating concrete, the heat insulating concrete and steel lychee plates manufactured in advance are used. Hardware used to support the insulating concrete to the steel lychee plate for the integral panel, one end of which is attached to the back of the steel lychee plate and the other end penetrates through the insulating concrete and is exposed to the back of the insulating concrete. and a heat insulating support hardware characterized in that the cross-sectional area of the exposed end is larger than the cross-sectional area within the heat insulating concrete. 2. In claim 1, bolts are inserted and tightened from the surface of the steel liner plate through holes drilled in the steel litchi plate at the ends to be attached to the back side of the steel liner plate. Insulation support hardware is provided with bolt holes for attaching the insulation support hardware to the steel lychee plate. 3. In claim 1, the exposed end is provided with a rod-shaped rod that is used to maintain the position as the pouring formwork when the integral panel is used also as the pouring formwork for building concrete. A heat insulating material support hardware provided with a screw hole for inserting and tightening a threaded part formed at one end of a separator.