JPH10160881A - Building structure and building construction method for reactor power station - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a building structure and a building construction method for a reactor power station realizing shortening of construction period, the reduction of quantity of site construction work, the improvement of work environment and more accurate component placement compared with conventional concrete building construction. SOLUTION: In buildings such as a reactor building in a reactor power station which are constituted of concrete for walls 1, floors and ceilings, etc., at least one side of the structure concrete constituting the walls, floors and ceilings is made of steel plate concrete structure reinforced with steel plates 30 covering the structure concrete surface and a multitude of studs 31 embedded in the structure concrete and projecting out of the steel plates.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building structure and a building construction method of a nuclear power plant using steel plate concrete (SC).

[0002]

2. Description of the Related Art Conventionally, walls, floors, ceilings and the like of a reactor building and other buildings in a nuclear power plant are generally made of reinforced concrete (RC).

FIG. 14 is a longitudinal sectional view showing the state of the wall 1 in such a conventional reinforced concrete building at the time of construction. Conventionally, as shown in FIG. 14, a support frame 2 composed of a large number of steel pipes is
After assembling the rebar 5 in this state, the wooden plywood form 6 is arranged as a dam, and the plywood form 6 is held from the outside by the beam 7 arranged between the support frame 2 and the plywood form 6. In this state, concrete 8 is cast. After a certain curing period has passed and the concrete 8 has hardened, the plywood form 6 and the like are removed, and then piping and other equipment are installed.

FIGS. 15 to 18 exemplify a conventional structure for installing equipment.

FIG. 15 shows a support structure for the external pipe 9 and the like with respect to the wall 1. As shown in FIG. 15, in the related art, a plate-shaped embedded metal 11 with a stud 10 is arranged and fixed on the surface of the concrete 8 before concrete is poured. Then, after the concrete is hardened, the plywood form and the like are removed, and then a support 12 for supporting the device made of an angle material or the like is embedded by the welded portion 13 into the embedded metal 11.
The pipes 9 and the like are supported on the support 12 integrally.

FIG. 16 shows an example of installation of a pipe 14 penetrating the wall 1. In this case, before the concrete 8 is cast, the sleeve 15 is arranged in advance so as to be in a state of penetrating the wall. However, the sleeve 15 cannot be made excessively long because the plywood form 6 needs to be flush with the above-mentioned plywood formwork 6, and the end is located on the wall surface. And
After hardening the cast concrete and removing the plywood form, etc., an auxiliary sleeve 16 is joined to the end of the sleeve 15 by a welded portion 17, and a boot rubber 19 is attached to the auxiliary sleeve 17 via a fastening tool 18. The rubber 19 supports, for example, the pipe 14 with the heat insulating material 20 inserted into the sleeve 15. In the insertion gap of the pipe 14, there is a lead wool 21.
And a non-combustible material 22 or the like. Said sleeve 1
Since a space is required on the outer peripheral side when welding the 5 and the auxiliary sleeve 16, a caulking material 23 is loaded in the space forming position when concrete is cast, and the caulking material 23 is removed before welding. A mortar 24 is filled in the space after welding.

FIG. 17 shows an example of installation of the buried pipe 25 on the wall 1. A temporary fixing support 26 is attached to the reinforcing bar 5, a pipe 25 is mounted on the support 26, and concrete 8 is poured and buried in this state.

FIG. 18 exemplifies a case where a pull box 27 for conduit distribution or integration is installed on the wall 1. As shown in FIG. 18, the reinforcing bar 5 arranged on the surface side of the wall 1 is cut at a constant vertical width, a pull box 27 is arranged at that portion, and concrete is cast in this state. Note that a cover plate 28 is attached to the pull box 27.

In addition to the above, though not shown, conduit pipes, ground wires, anchor bolts for machine foundations, etc.
Positioning is performed at the end of the rebar arrangement work before concrete placement and fixing to rebar is performed. The ceiling, floor, and the like are constructed in substantially the same manner as in the case of the wall.

[0010]

However, in the reinforced concrete building exemplified by the above-mentioned wall structure, there are various problems in construction.

That is, after the concrete 8 has been cast, the plywood form 6 is removed, and equipment installation work using the buried facilities can be performed for the first time. 5 had to be cut to secure an effective opening.

After arranging reinforcing bars on the building side before concrete casting, the action of mounting buried equipment such as the buried metal fitting 11, sleeve 15, buried piping 25, pull box 27, buried electric conduit, etc. is performed between narrow reinforcing bars. Is performed, the working environment is poor, which leads to a decrease in efficiency and a prolonged working time.

The construction of a building is one of the main factors that determine the construction period of a nuclear power plant. The construction period of the building is substantially equal to the concrete placing work time. Therefore, the inability to shorten the concrete pouring work period has greatly affected the prolonged construction period of nuclear power plants, as it has taken four or five years. That is, the installation work of the buried object on the equipment side also affects the building construction period, which leads to a longer construction work. Further, as described above, the installed buried object may be displaced or deformed due to the influence of the concrete casting pressure, and may cause incompatibility such as deformation.

Also, after the concrete is hardened, there is a work to remove and remove the plywood formwork on the side of the building, so that the work on the side of the equipment installer cannot start immediately. As a result, the process is becoming longer and the working environment is also worsening, and shortening the construction period, reducing local construction work, and improving the working environment are major issues.

In particular, the support 12 or the like, which has conventionally been connected to a concrete structure via the embedded metal member 11 or the like, changes the support steel material due to displacement or deformation of the embedded metal member 11 or the like. This requires a lot of cost, such as the necessity of installing post-attachment hardware, and this has had a lot of effects on prolonging the construction period.

The present invention has been made in view of such circumstances, and can shorten the construction period, reduce the amount of on-site construction work, and improve the work environment in building construction, as compared with a conventional reinforced concrete building. It is an object of the present invention to provide a building structure and a building construction method of a nuclear power plant capable of realizing high equipment construction.

[0017]

In order to achieve the above object, according to the first aspect of the present invention, a reactor building or other building in a nuclear power plant, wherein walls, floors, ceilings and the like are concrete structures. A steel plate covering at least one side surface of the slab concrete constituting the wall, floor, ceiling, etc., and a number of studs projecting integrally from the steel plate and embedded in the slab concrete. Steel plate concrete (S
C) To provide a building structure of a nuclear power plant having a structure.

According to a second aspect of the present invention, in a nuclear reactor power plant or other building having a concrete structure of walls, floors, ceilings, etc., the skeleton concrete constituting the wall has a non-reinforced structure. And a steel sheet reinforced on both sides by a pair of opposed steel sheets covering the surface of the skeleton concrete in a sandwich-like manner and a plurality of studs projecting integrally from these steel sheets and buried in the skeleton concrete. To provide a building structure of a nuclear power plant having a concrete structure.

According to a third aspect of the present invention, in a reactor building or other building in a nuclear power plant, wherein walls, floors, ceilings and the like have a concrete structure, an upper surface side of a skeleton concrete constituting the ceiling or floor is provided. Is a reinforced structure, while the lower side of the skeleton concrete has a non-reinforced structure, and a steel plate covering the lower surface of the skeleton concrete, and is integrally protruded upward from the steel plate and is embedded in the skeleton concrete. Provided is a nuclear power plant building structure having a steel plate concrete structure reinforced by a large number of studs.

According to a fourth aspect of the present invention, in the nuclear power plant building structure according to any one of the first to third aspects,
Provided is a building structure of a nuclear power plant, characterized in that a support for supporting pipes and other devices is integrally provided on an outer surface side of a steel plate covering a surface of a skeleton concrete or protruded through a fixture.

According to a fifth aspect of the present invention, in the nuclear power plant building structure according to any one of the first to third aspects,
A building structure of a nuclear power plant, wherein a steel plate is integrally provided with a sleeve for inserting a pipe or an electric cable penetrating along the thickness direction of the skeleton concrete.

According to the invention of claim 6, in the building structure of a nuclear power plant according to any one of claims 1 to 3,
Provided is a building structure of a nuclear power plant, wherein a steel plate is integrally provided with an air conditioning duct penetrating along the thickness direction of the skeleton concrete.

According to a seventh aspect of the present invention, in the nuclear power plant building structure according to any one of the first to third aspects,
Provided is a building structure of a nuclear power plant, wherein a pull box for distributing or integrating electric wires and cables is integrally provided on an inner surface side, which is a stud side of a steel plate.

According to the invention of claim 8, in the building structure of the nuclear power plant according to any one of claims 1 to 3,
Provided is a building structure of a nuclear power plant, wherein an outlet for electric wires and cables is integrally provided on an inner surface side of a steel plate on a stud side.

According to a ninth aspect of the present invention, in the building structure of a nuclear power plant according to any one of the first to third aspects,
A building structure of a nuclear power plant, characterized in that buried piping arranged in a skeleton concrete along a direction orthogonal to a thickness direction is supported by studs projecting from a steel plate.

According to a tenth aspect of the present invention, in the nuclear power plant building structure according to any one of the first to third aspects, the steel plate is provided with a lock member for fastening the buried conduit tube in a threaded manner. To provide a featured nuclear power plant building structure.

According to the eleventh aspect of the present invention, in the building structure of the nuclear power plant according to any one of the first to third aspects, a gate-shaped or other support member is provided on the inner surface side of the stud projecting surface of the steel plate. An object of the present invention is to provide a building structure of a nuclear power plant, wherein an anchor bolt to be planted in skeleton concrete or a buried pipe to be buried in the skeleton concrete is previously supported on a support member.

According to a twelfth aspect of the present invention, in the building structure of a nuclear power plant according to the third aspect, a support for supporting pipes and other equipment is directed downward on a steel plate covering a lower surface of skeleton concrete constituting a floor. To provide a building structure of a nuclear power plant, wherein the building structure is integrally or protruded through a fixture.

According to the thirteenth aspect, the first to twelfth aspects are described.
In the building structure of a nuclear power plant according to any one of the above,
Provided is a building structure of a nuclear power plant, characterized by applying a plate, a deck plate and other driving formwork.

According to the fourteenth aspect of the present invention, the first to twelfth aspects are described.
The steel sheet according to any of the above, after assembling as an integral structure in a factory or on site, carried in a predetermined position and fixedly installed, in that state the concrete is cast using the steel sheet as a formwork, frame concrete and To provide a building construction method of a nuclear power plant characterized by being integrated.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a longitudinal sectional view showing a wall (vertical wall) structure of a nuclear power plant building according to the present embodiment. As shown in FIG. 1, in the present embodiment, a pair of steel plates 30 opposing each other covering both sides of the frame concrete 8 in a sandwich shape without using a reinforcing bar as the frame concrete 8 constituting the wall 1. And a steel plate concrete (SC) structure in which the steel plates 30 are integrally protruded from the steel plates 30 and reinforced by a large number of studs 31 buried in the skeleton concrete 8. The steel plates 30 facing each other are connected by a shear bar 32.

In the structure of this embodiment,
The concrete casting frame is formed by the steel plate 30, and thereafter, the steel plate 30 can be left as it is as a part of the wall 1 without being removed. Therefore, unlike the conventional case, there is no need to use the plywood form 6 and no extra work such as removing the plywood form 6 after the concrete is hardened, so that the construction period is shortened compared to the conventional reinforced concrete building, The amount of on-site construction work can be reduced and the work environment can be improved.

FIG. 2 shows a support mounting structure for supporting a lightly loaded device with respect to the wall 1. As shown in FIG. 2, in the present embodiment, a support 33 for supporting a light load device such as a relatively small-diameter external pipe 9 is directly attached to a steel plate 30 by a welded portion 34. In addition,
As the support 33, an angle material such as a hollow square material, an L-shaped steel, and a U-shaped steel can be used.

With such a configuration, the support 33 can be easily installed at an arbitrary position after the concrete is cast, and the work involved in installing the lightweight equipment can be performed very easily. In addition, the support 33 can be integrated with the steel plate 30 in advance before the concrete is cast. In this case, the subsequent welding is not required, and the work can be streamlined. Since it can be omitted, it is effective for shortening the construction period.

FIG. 3 shows a support mounting structure for supporting a heavy load device on the wall 1. As shown in FIG. 2, in this embodiment, an insertion hole 35 is formed in the steel plate 30 in advance, and the embedded metal 35 is fixedly installed in the skeleton concrete 8 via the insertion hole 35. Embedded hardware 35
Consists of a steel plate 36 thicker than the steel plate 30, for example, and a stud 37 integrally projecting from the steel plate 36. The stud 37 is inserted into the insertion hole 35 of the steel plate 30, and the wall is formed by concrete casting. Fix to 1. In this way, the steel plate 36 is placed on the surface of the steel plate 30, and after the concrete is hardened, the support 38 is attached to the steel plate 36.
Is fixed by a welding portion 39 so that the support 38 supports a large-load device such as a large-diameter external pipe 40.

In such a configuration, it is necessary to install the embedded metal 35 with the stud 37 at the time of placing the concrete in order to support the support 38 for supporting the heavy load equipment.
Since there is no reinforcing bar inside the skeleton concrete 8, there is no interference between the embedded metal 35 and the reinforcing steel, and the installation of the embedded metal 35 can be performed more easily than before.

FIG. 4 shows, as a modification of the embodiment shown in FIG. 3, a structure in which the support 38 for supporting a heavy load device is attached to the wall 1 after the concrete body 8 is hardened. That is, in the present embodiment, as shown in FIG.
After the concrete is cast, a hole 41 is formed by boring in the steel plate 30 on the surface of the wall 1 and the portion of the skeleton concrete 8, and a post-anchor anchor bolt 42 is provided in the hole 41 as a fixture.
After that, a plate 43 is fixed to a protruding tip portion of the hitting anchor bolt 42 by a nut 44, and the support 38 is attached to the plate 43 by a welding portion 45. The support 38 supports a large load device such as a large diameter pipe 40.

Also in such an embodiment, since there is no reinforcing steel inside the skeleton concrete 8, post-anchor anchoring can be performed more easily than in the prior art. In addition, it is also possible to previously integrate the plate 43 and the support 38 and complete the installation of the support 38 simultaneously with the tightening of the nuts of the post-stroke anchor bolts 42, whereby the construction can be further streamlined.

FIG. 5 shows a modified example of FIG. 4 with respect to the mounting of the support 38 for supporting a heavy load device.

In this example, a stud bolt (welding stud bolt) 46 is joined to the surface of the steel plate 30 by stud welding without forming a hole in the wall 1, and a plate 43 for mounting the support is fixed by a nut 44. It is. Other configurations are the same as those in FIG.

According to such a configuration, the construction can be performed without the need to form a hole in the wall 1, so that the construction can be further streamlined.

FIG. 6 shows an example of a configuration in which a sleeve for inserting a pipe or the like is installed on the wall 1. In the present embodiment, the steel plate 30 is integrally provided with the sleeve 47 for inserting the pipe 14 (or the electric cable) penetrating along the thickness direction of the skeleton concrete 8. This sleeve 47 focuses on the point that the presence of an outwardly projecting object is allowed based on the elimination of the plywood form 6 which is a feature of the steel plate concrete structure, and projects outward from the surface of the steel plate 30. And has a protruding portion 47a integrally formed. The boot rubber 19 is attached to the protruding portion 47a of the sleeve 47 via the fastening tool 18 as in the related art,
The boot rubber 19 supports, for example, the pipe 14 with the heat insulating material 20 inserted into the sleeve 47. The insertion gap of the pipe 14 is filled with lead wool 21 and non-combustible material 22.

According to the configuration of the present embodiment, unlike the conventional structure shown in FIG. 16, a projecting portion 47a projecting in advance outward from the surface of the steel plate 30 can be integrally formed on the sleeve 47. No need to weld sleeve 16,
Also, no space is required for welding. Therefore, it is not necessary to load the caulking material 23 for forming a space at the time of placing concrete, and it is possible to omit the need to fill the mortar 24 into the space. Therefore, the construction of the through pipe can be greatly rationalized as compared with the related art.

FIG. 7 shows a structure for attaching the duct to the wall 1. In the present embodiment, the air conditioning duct 48 penetrates the steel plate 30 along the thickness direction of the skeleton concrete 8.
Are provided integrally. That is, the duct steel plate 30 is provided with the duct through-hole 49 in advance, and the duct 50 wall is formed between the steel plates 30 so as to surround the duct through-hole 49, and the channel material 51 or the angle material 52 is formed in the duct wall 50.
The ducts 53 and 54 are connected through welding or the like. Note that a fire damper 55 is attached to the duct 53 as necessary.

According to the configuration of this embodiment, the air conditioning duct 48 is formed before the concrete body 8 is cast, and no special construction is required after the concrete is hardened. In the prior art for forming the duct in the portion, the trouble of the prior art is not required, and the prior attachment (direct attachment and integration) together with the fire prevention damper 55 is possible, so that the construction of the duct can be streamlined.

FIG. 8 shows a structure for attaching the buried pipe 25 to the wall 1. That is, in the present embodiment, the wall 1
Buried pipes 25 arranged along a direction orthogonal to the thickness direction in the skeleton concrete 8 of the above-mentioned skeleton concrete, are installed in a state of being inserted between steel plates 30 opposed to each other before the laying of the skeleton concrete. Are supported by studs 31 projecting from the steel plate 30. Then, the embedded pipe 25 is integrally held in the wall 1 by casting concrete.

According to such a configuration, the temporary fixing support 26 which is necessary as a temporary fixing in the case of the conventional structure shown in FIG. 17 can be omitted. This eliminates the need for extra members and the work of attaching them, and simplifies the buried piping work by omitting the members and the work.

It should be noted that, when the buried pipe 25 is supported, if a sheer bar or a lattice member is disposed near the buried pipe 25, it can be used instead of the stud 31.

FIG. 9 shows a structure for attaching the pull box 27 to the wall 1. In the present embodiment, before the steel plate 30 is opposed to the pull plate 27 and the cover plate 28 with the angle
Is attached.

In this embodiment, since there is no reinforcing bar inside the skeleton unlike the conventional case, there is no need to consider interference with the pull box, and the work can be streamlined by omitting the labor of cutting the reinforcing bar, which is conventionally performed. I can do it.

FIG. 10 shows a structure for attaching an outlet 56 such as an electric wire cord to the wall 1. In this embodiment, the outlet 56 is attached to the steel plate 30 in advance with the cover plate 57 supported before the steel plate 30 is arranged to face the steel plate 30.

Also in this embodiment, unlike the conventional case, there is no reinforcing bar inside the frame, so there is no need to consider the interference with the pull box, and the work can be streamlined by omitting the trouble of cutting the reinforcing bar which has been conventionally performed. I can do it.

The accessory members of the wall 1 described in the above embodiment can be attached to the steel plate 30 in advance at the factory stage or on-site transportation stage. In particular, the outlet 56, the pull box 32 or the sleeve 3
3 etc., one steel plate 30 which is one side of the wall 1
, The convenience of being easily attached to any place or time is obtained.

FIG. 11 shows a structure for attaching the buried electric wire piping 58 to the wall. In the present embodiment, the steel plate 30
A lock member 59 having a nut structure for screwing the buried conduit 58 in a threaded manner is provided, and before the steel plate 30 is arranged to face the buried conduit 58, the buried electric conduit 58 is tightened and fixed to the steel plate 30 in advance using the lock member 59. It has a configuration.

Also in the present embodiment, it is possible to easily hold the buried conduit 58 by utilizing the fact that the steel plates 30 are arranged on both sides of the wall before the concrete is constructed.
Thereby, the work can be rationalized. Further, since there is no reinforcing bar inside the skeleton, interference between the buried conduit 58 and the reinforcing bar is eliminated as compared with the related art, and the installation can be performed easily.

FIG. 12 shows a case where the present invention is applied to a ceiling or floor (hereinafter, referred to as a ceiling or floor).
An embodiment in which the present invention is applied to a skeleton concrete 8 constituting a floor 60 or the like) is shown.

In this embodiment, the upper surface side of the skeleton concrete 8 constituting the floor 60 has a reinforced structure using the reinforcing bars 5, while the lower side of the skeleton concrete 8 has a non-reinforced structure and Steel plate 30 covering lower surface
And a plurality of studs 31 integrally projecting upward from the steel plate 30 and buried in the skeleton concrete to reinforce the steel plate concrete structure. That is,
Since the floor or the like 60 is arranged horizontally and receives a large vertical load, a reinforcing steel structure is adopted on the upper surface side in order to cope with bending and shear force effects, and a steel plate concrete structure is applied only on the lower surface side. In the present embodiment, for example, a reinforcing rod 61 having a T-shaped cross section that is long in a direction perpendicular to the paper surface of FIG.

On the inner surface (upper surface) of the steel plate 30 which is the projecting surface of the stud, a gate-shaped or other supporting member 62 is provided, and the supporting member 62 supports an anchor bolt 63 to be planted in the concrete body 8. A device 64 installed on a floor or the like 60 is fixed by an anchor bolt 63. As the support member 62, for example, an L-shaped steel or the like can be joined and applied, and the anchor bolt 63 is supported on a horizontal portion of the L-shaped steel or the like.

For the anchor bolt 63, there is a strict requirement for the positional accuracy in relation to the installation position of the equipment 64. Conventionally, since the anchor bolt 63 is temporarily fixed to the reinforcing bar 5 or the like, a great amount of labor is required. However, according to the present embodiment, since the anchor bolt 63 is supported by the support member 62 previously fixed to the steel plate 30, high positional accuracy can be set easily and reliably.

In the present embodiment, since the steel plate concrete structure is applied to the lower surface side of the floor 60 or the like, the formwork function can be collectively obtained on the lower surface in a predetermined range by lifting the steel plate 30, and the conventional support can be obtained. Work can be omitted. Therefore, a great deal of labor and time required for installation and removal of the shoring work, which is conventionally required, can be omitted, and the working efficiency can be greatly improved and the working time can be greatly reduced. Further, in the present embodiment, since the support member 62 to be installed on the steel plate 30 can be manufactured at the factory and can be integrally loaded with the steel plate 30, the rationalization of the loading can be effectively achieved.

In the present embodiment, as shown in FIG.
Can be installed via a welded portion 66. In this case, it is desirable that the sleeve 65 be supported by the inclined support member 67 or the like as necessary.

FIG. 13 shows a support structure when the present invention is applied to a floor 60 or the like. That is, in the present embodiment, the support 69 for supporting the equipment such as the pipe 68 is integrally or downwardly attached to the steel plate 30 covering the lower surface of the skeleton concrete 8 constituting the floor 60 or the like, or via a fixture. Protruding. In addition, the buried pipe 70 and the buried conduit 7
1 is supported by a T-shaped reinforcing rod 61, a stud 31, or a piping support member 71 provided on these.

According to such a configuration, the buried pipe 70 and the buried electric conduit 71 can be attached in advance by using the stud 31 and the reinforcing rod 61 provided directly on the steel plate 30. Can be directly mounted on the steel plate 30 by the support 69 in advance and supported, so that it is possible to make a factory and to carry it into the site integrally, thereby streamlining equipment construction.

According to the above embodiment, the steel plate production and the installation of the equipment are performed in the factory, and only the installation is performed on site. Therefore, the amount of on-site work is greatly reduced and the construction period is shortened. Safety can be improved.

In the present invention, in addition to the above-described embodiments, a deck plate method, a ΔC panel method, a punching form method, or the like can be used together, and furthermore, it can be implemented as a flat slab. That is, as the steel plate covering the surface of the skeleton concrete, a PC plate, a deck plate, or another driving formwork can be applied.

[0067]

As described in detail above, according to the present invention, the use of a steel plate concrete structure and the integration of equipment can greatly reduce the amount of work for on-site construction, and In the construction of a building, compared with a conventional reinforced concrete building, the construction period can be shortened, the cost can be reduced, and the working environment can be improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a wall structure according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing an example of a support mounting structure of a wall structure according to an embodiment of the present invention.

FIG. 3 is a longitudinal sectional view showing another example of the support mounting structure of the wall structure according to the embodiment of the present invention.

FIG. 4 is a longitudinal sectional view showing another example of the support mounting structure of the wall structure according to the embodiment of the present invention.

FIG. 5 is a longitudinal sectional view showing still another example of the support mounting structure of the wall structure according to the embodiment of the present invention.

FIG. 6 is a longitudinal sectional view showing a sleeve mounting structure of a wall structure according to an embodiment of the present invention.

FIG. 7 is a longitudinal sectional view showing a duct mounting structure of a wall structure according to an embodiment of the present invention.

FIG. 8 is a longitudinal sectional view showing an embedded pipe mounting structure of a wall structure according to an embodiment of the present invention.

FIG. 9 is a longitudinal sectional view showing a pull box mounting structure of a wall structure according to an embodiment of the present invention.

FIG. 10 is a longitudinal sectional view showing an outlet mounting structure having a wall structure according to an embodiment of the present invention.

FIG. 11 is a longitudinal sectional view showing a lock member mounting structure of a wall structure according to an embodiment of the present invention.

FIG. 12 is a longitudinal sectional view showing an example of a structure of a floor or the like according to an embodiment of the present invention.

FIG. 13 is a longitudinal sectional view showing another example of a structure such as a floor according to an embodiment of the present invention.

FIG. 14 is a longitudinal sectional view showing a conventional wall structure.

FIG. 15 is a longitudinal sectional view showing a support mounting structure in a conventional wall structure.

FIG. 16 is a longitudinal sectional view showing a sleeve mounting structure in a conventional wall structure.

FIG. 17 is a longitudinal sectional view showing a buried pipe mounting structure in a conventional wall structure.

FIG. 18 is a longitudinal sectional view showing a pull box mounting structure in a conventional wall structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wall 2 Support frame 3 Separator 4 Form tie 5 Reinforcement 6 Plywood form 7 Bar material 8 Concrete 9 External piping 10 Stud 11 Embedded hardware 12 Support 13 Welding part 14 Pipe 15 Sleeve 16 Auxiliary sleeve 17 Welding part 18 Fastener 19 Boot rubber 20 Insulation material 21 Lead bristles 22 Noncombustible material 23 Caulking material 24 Mortar 25 Buried piping 26 Temporary fixing support 27 Pull box 27a Angle 28 Cover plate 30 Steel plate 31 Stud 32 Shear bar 33 Support 34 Welding part 35 Insertion hole 36 Steel plate 37 stud 38 support 39 welded part 40 large-diameter external piping 41 hole 42 after-stroke anchor bolt 43 plate 44 nut 45 welded part 46 stud bolt (welded stud bolt) 47 sleeve 47a projecting part 48 air conditioning Duct 49 Duct through hole 50 Duct 51 Channel material 52 Angle material 53, 54 Duct 55 Fire prevention damper 56 Outlet 57 Cover plate 58 Buried electric wire piping 59 Lock member 60 Floor 61 Reinforcement rod 62 Support member 63 Anchor bolt 64 Equipment 65 Sleeve 66 Welding part 67 Supporting member 68 Piping 69 Support 70 Buried piping 71 Buried conduit

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Kazuhiro Aoshima Toshiba Engineering Co., Ltd. 66-2 Horikawa-cho, Saiwai-ku, Kawasaki-shi, Kanagawa

Claims (14)

[Claims] 1. A reactor building or other building in a nuclear power plant having a concrete structure of walls, floors, ceilings, etc., wherein at least one side of frame concrete forming said walls, floors, ceilings, etc. A steel plate covering the surface of the skeleton concrete and a steel plate concrete structure reinforced by a large number of studs protruding integrally from the steel plate and buried in the skeleton concrete. . 2. A reactor building or other building in a nuclear power plant in which walls, floors, ceilings and the like have a concrete structure. , Facing each other, covering the surface of the building concrete in a sandwich shape
A building structure for a nuclear power plant, comprising a steel plate-concrete structure reinforced by a pair of steel plates and a number of studs protruding integrally from the steel plates and embedded in the skeleton concrete. 3. A reactor building or other building in a nuclear power plant, wherein walls, floors, ceilings and the like have a concrete structure, and the upper surface side of the skeleton concrete constituting the ceiling or floor has a reinforcing steel structure. On the other hand, the lower side of the skeleton concrete has a non-reinforced structure, and a steel plate covering the lower surface of the skeleton concrete, and a number of studs projecting upward from the steel plate integrally and buried in the skeleton concrete. The building structure of a nuclear power plant, which has a steel plate concrete structure for reinforcement. 4. The building structure of a nuclear power plant according to any one of claims 1 to 3, wherein a support for supporting piping or other equipment is integrally formed on an outer surface side of a steel plate covering a surface of the skeleton concrete, Alternatively, the building structure of a nuclear power plant protruded through a fixture. 5. The building structure of a nuclear power plant according to any one of claims 1 to 3, wherein the steel plate is provided with a sleeve for inserting a pipe or an electric wire cable penetrating along the thickness direction of the skeleton concrete. The building structure of a nuclear power plant, which is provided integrally. 6. The building structure of a nuclear power plant according to any one of claims 1 to 3, wherein an air-conditioning duct is provided integrally with the steel plate along a thickness direction of the skeleton concrete. Building structure of nuclear power plant. 7. The nuclear power plant building structure according to claim 1, wherein a pull box for distributing or integrating electric wires and cables is integrally provided on the inner surface side of the steel plate on the stud side. The building structure of a nuclear power plant. 8. The nuclear power plant building structure according to claim 1, wherein an electric wire cable outlet is integrally provided on the inner surface side of the steel plate on the stud side. Building structure. 9. The building structure of a nuclear power plant according to any one of claims 1 to 3, wherein a buried pipe disposed in the skeleton concrete along a direction orthogonal to the thickness direction projects from the steel plate. Nuclear power plant building structure supported by studs. 10. The nuclear power plant building structure according to claim 1, wherein a lock member for screwing the buried conduit is screwed on the steel plate. Building structure. 11. The building structure of a nuclear power plant according to claim 1, wherein a gate-shaped or other supporting member is provided on the inner side of the steel plate, which is a projecting surface of the stud. A building structure for a nuclear power plant, wherein an anchor bolt to be buried in the building or a buried pipe to be buried in the skeleton concrete is supported in advance. 12. The building structure of a nuclear power plant according to claim 3, wherein a steel plate covering a lower surface of the skeleton concrete constituting the floor is integrally provided with a support for supporting piping and other equipment downward. Alternatively, the building structure of a nuclear power plant protruded through a fixture. 13. The building structure of a nuclear power plant according to any one of claims 1 to 12, wherein a PC plate, a deck plate, or another driving form is applied as the steel plate covering the surface of the skeleton concrete. Building structure of nuclear power plant. 14. After assembling the steel sheet according to any one of claims 1 to 12 as an integral structure at a factory or a site, the steel sheet is carried into a predetermined position and fixed, and in this state, the steel sheet is subjected to formwork. A concrete construction method for nuclear power plants, in which concrete is cast and integrated with skeleton concrete.