JPH0334833B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to lining equipment applied to the floors of buildings, etc.

[Technical background of the invention and its problems]

In general, fast breeder reactors use liquid metal as a coolant, so in the unlikely event that this liquid metal leaks, metal lining equipment is installed on the floor of the reactor building. This lining equipment prevents the leaked liquid metal from coming into direct contact with the building's concrete and causing a chemical reaction, thereby preventing the strength of the concrete from decreasing.

Figure 4 shows a fast breeder reactor building equipped with this type of lining equipment.

In the figure, reference numeral 1 denotes a building made of reinforced concrete, and a room in which equipment 2 through which liquid metal flows is installed is provided with lining equipment 3 on its floor. This lining equipment 3 includes a large container-shaped lining member 4 made of a steel plate, and anchors 5 formed in a lattice shape that support the lining member 4 from below and to which the equipment 2 on the lining member 4 is fixed. And this anchor 5 is attached to the floor 7 and side wall 8 of the building 1.
It is formed by studs 6, 6 which are embedded so as to be firmly fixed thereto.

This lining equipment 3 mainly fulfills the following two functions. That is, even if liquid metal leaks from the equipment 2, this liquid metal is stored on the container-shaped lining member 4 to prevent it from coming into contact with the floor 7 or side wall 8 of the building 1. Further, in the event of an earthquake, the lining member 4 is rigidly connected to the building 1 by the studs 6, 6 and the anchor 5, so that the lining member 4 is not damaged and the safety of the equipment 2 is ensured.

However, since the lining member 4 and the anchor 5 are made of steel, when the temperature rises by 100° C., the lining member 4 and the anchor 5 thermally expand by 1 to 1.5 mm per meter. In Fig. 4, the lining member 4 and the anchor 5 are normally heated at 20℃~
Although the temperature is maintained at around 50℃, if there is a leak of high-temperature liquid metal from equipment 2, the temperature will rise to 200℃.
It reaches a high temperature of about ℃ or higher and thermally expands by 2 to 3 mm.
On the other hand, in the lining equipment 3 shown in FIG. 4 where the building 1 has a small temperature rise and does not undergo thermal expansion, the thermal expansion of the lining member 4 and the anchor 5 is restrained by the side wall 8 of the building 1, and the anchor 5, the stud 6, and the building 1 This is to ensure the integrity of the joint, and a large reaction force acts on the side wall 8. Therefore,
In the lining equipment with the configuration shown in Figure 4,
It could not be installed in a thin-walled building where the side wall 8 had a thickness of 1 m or less.

Therefore, conventionally, a lining facility 13 suitable for a building 11 with thin walls as shown in FIG. 5 has been provided.

This lining equipment 13 allows the lining member 14 to be deformed by using curved corners 15 at the bottom corners of the container-shaped lining member 14, and
The lining member 14 is fixedly supported by a large number of studs 16, 16 buried in the floor 17 of the building 11 without using the anchors 5 shown in the figure. Each stud 16 stands up from the floor 17 by a certain height and is formed to be deformable as the lining member 14 expands.

The lining equipment 13 formed in this way is
Even if the lining member 14 expands due to a leakage joint of the liquid metal, each stud 16, 16 is bent and deformed, and the curved corner 15 is deformed to absorb the thermal expansion of the lining member 14. The operation is performed so that no large reaction force is applied to the side wall 18.

However, in the conventional equipment shown in Figure 5,
When the temperature rise of the lining member 14 is large or when the total length of the lining member 14 is long, the amount of thermal expansion of the lining member 14 is large, and each stud 1
The deformation of 6 and 16 becomes excessive, resulting in plastic deformation, and the strength thereof decreases. This makes it impossible to rigidly connect the lining member 14 to the building 11 during an earthquake. Therefore, while the conventional equipment shown in FIG. 5 can be applied to buildings with thin walls, it is not possible to provide a long lining member.

[Purpose of the invention]

The present invention has been made in view of these points, and it is an object of the present invention to not apply a large reaction force to the wall of a building in which lining equipment is installed during thermal expansion of the lining equipment, and to always maintain high seismic strength. The purpose of the present invention is to provide lining equipment that can provide a long lining member in a thin-walled building.

[Summary of the invention]

The lining equipment of the present invention has a metal lining member fixed to a building by an anchor attached to the back side of the lining equipment, in which the anchor is fixed to the building by a tightening tool at one point of the lining member. It is characterized in that it is attached and formed so that it can freely reciprocate in different radial directions from the center.

In the present invention, the anchor is provided movably in the direction of thermal expansion of the lining member to absorb the thermal expansion, and in the event of an earthquake, at least one anchor is fixed to the building to prevent seismic motion that is one-dimensional behavior. The lining member is also kept safe even when exposed to the heat.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to FIGS. 1 to 3.

1 and 2 show one embodiment of the invention.

In the figure, numeral 21 is a building. The lining equipment 23 of this embodiment is installed on the floor 30 of this building 21. This lining equipment 23 is the fifth
A container-shaped lining member 24 having a curved corner 25 similar to that shown in the figure is used. A cross-shaped anchor 2 is provided on the back surface, that is, the bottom surface of this lining member 24.
6 is fixed. The anchor 26 is made of the same metal material as the lining member 24 so as to have the same coefficient of thermal expansion. Also, anchor 2
The center point 0 of the cross 6 is located at the base point of thermal expansion of the lining equipment. In addition, since the lining equipment thermally expands uniformly when liquid metal leaks, any position can be set as the base point of thermal expansion. Therefore, each side 26a, 26b of the cross of the anchor 26 is provided in two different radial directions at right angles with 0 as the center. Further, each side 26a, 26b of the anchor 26 is formed into an I-shaped cross section,
Elongated holes 27, 27 extending in the longitudinal direction of each side 26a, 26b are bored in the lower flange portion.
The upper end of a stud 28 buried in the floor 30 of the building 21 is passed through this elongated hole 27.
Attach the nut 29, 2 to the threaded portion of the upper end of the stud 28.
It is mounted on the floor 30 by tightening 9. Each side 26a, 26b of the anchor 26, which is attached to the floor 30 by a fastener consisting of the stud 28, nut 29, elongated hole 27, etc., can freely reciprocate in the longitudinal direction of the elongated hole 27 during thermal expansion. It is said that The length of this elongated hole 27 is equal to the length of each side 2 of the anchor 26.
It is formed to be larger than the thermal expansion length of 6a and 26b. Further, a gap larger than the thermal expansion length of each piece 26a, 26b of the anchor 26 is provided between the anchor 26 and the building side wall 31.

Next, the operation of this embodiment will be explained.

In the unlikely event that liquid metal leaks from the equipment onto the lining member 24 in the event of an accident, the lining member 24 and the anchor 26 will simultaneously move from the center point 0 of the cross of the anchor 26 as indicated by the arrows A in FIG. Thermal expansion occurs radially. At this time, each side 26a, 26b of the anchor 26 freely thermally expands in the radial direction from the center point 0 while sliding the long hole 27 of the lower flange with the stud 28, so that the force that restrains the thermal expansion is Does not occur. Furthermore, since these thermal expansions are absorbed by the curved corners 25 of the lining member 24, no large reaction force is generated by the anchors 26 on the side walls 31 of the building 21. Therefore, this side wall 31 can be formed into a thin wall.

Also, during an earthquake, it acts as follows.

In other words, since an earthquake is a one-dimensional behavior that shakes only in one direction, each side 26 of the cross of the anchor 26
The anchor 26 is firmly fixed to the floor 30 by at least one of the fasteners a and 26b. For example, in this embodiment, the earthquake force is applied to one side 26a of the anchor 26.
When the anchor 26 acts parallel to the floor 30, the stud 28 contacts the edge of the elongated hole 27 on the other side 26b perpendicular to the side 26a, so the anchor 26 is rigidly connected to the floor 30 in an immovable state. ing. Therefore, it always exhibits excellent earthquake resistance.

As described above, since the anchor can freely expand thermally and has excellent earthquake resistance, the lining member 24 can be formed into a long length.

In addition, as a tightening tool for the anchor 26, as shown in FIG.
Accordingly, both side edges of the lower flange of each side 26a, 26b may be formed to be movable in the longitudinal direction and held down from above.

Further, each side of the anchor 26 may intersect at an angle other than a right angle, and each side may be provided with three or more sides.

〔Effect of the invention〕

In this way, the lining equipment of the present invention does not restrict the thermal expansion caused by the temperature rise of the lining member, so there is no large reaction force acting on the walls and floors of the building, and the lining member can be easily removed during an earthquake. Because it can be rigidly connected to the building at all times, earthquake resistance is significantly improved, and as a synergistic effect, long lining members can be installed in buildings with thin walls, which helps conserve resources. play.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of a fast breeder reactor building showing an embodiment of the lining equipment of the present invention;
The figure is a plan view of the lining equipment shown in Fig. 1, and Fig. 3 is a perspective view similar to Fig. 1 showing another embodiment of the present invention.
4 and 5 are perspective views similar to FIG. 1, respectively, showing conventional lining equipment. 21... Building, 23... Lining equipment, 24
...Lining member, 26...Anchor, 27...
Long hole, 28... Stud, 29... Nut, 30
...Floor, 32...Claw member.

Claims (1)

[Scope of Claims] 1. In a lining facility having a metal lining member fixed to a building by an anchor attached to the back side, the anchor made of a member having approximately the same thermal expansion as the lining member is attached by a tightening tool. The lining member is attached to the floor of the building so as to be able to freely reciprocate in different radial directions including at least a cross shape around one point serving as a base point of thermal expansion of the lining member, and the anchor and the building side wall are not coupled. Characteristic lining equipment. 2. The lining equipment according to claim 1, wherein the anchor is a device on the lining member that serves as a base point for thermal expansion.