JPH0782817A - Building wall structure and its construction work - Google Patents

Abstract

PURPOSE:To simplify work by forming a stud mounted metal having a plural number of studs fixed on both surface of a metal plate and placing concrete upon arranging PC plates by means of sandwiching the metal plate. CONSTITUTION:A stud mounted steel plate 2 having a plural number of studs 4 fixed on both surfaces of a steel plate 3 is formed and concrete 11 is casted in place upon arranging PC plates 12 on both surfaces of the stud mounted steel plate 2. Truss bars 15 are built-in on the inner surface of the PC plates 12 and an embedded plate 16 is built-in on the outer surface of the PC plate 12 after which a stud anchor 17 is driven in. Thus construction work can be sharply shortened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall structure of a building suitable for being applied to a building having a thick wall structure such as a nuclear facility, and a construction method thereof.

[0002]

2. Description of the Related Art Conventionally, a wall structure of a building is generally: 1) Assembling a reinforcing bar which is a reinforcing material of a wall structure at a construction site 2) Assembling a form of a wall structure 3) Placing concrete in the form 4) After the concrete is hardened, the steps of disassembling the formwork are repeated according to the procedures of 1) to 4) above.

Here, for example, in a nuclear facility, in order to prevent the influence of radiation on the public or the environment in the vicinity even when a large earthquake is encountered, it is more important than the general building. The design and safety evaluation of seismic resistance and shielding performance are rigorously stipulated, and in order to construct a nuclear facility that satisfies such seismic performance and shielding performance, most of them are made by increasing the thickness of the wall structure. It corresponds.

[0004]

By the way, in order to construct the above-mentioned wall structure having a large thickness, the entire building is naturally large-scaled. Therefore, it is installed in each of the construction steps 1) to 4). Temporary work such as scaffold assembly, refilling and dismantling work becomes essential. In addition to such temporary scaffolding work, most of the construction steps 1) to 4) described above must be carried out directly at the construction site, which complicates the work in each step, which leads to the construction period. However, there was a problem that it would be prolonged. Further, since most of the construction process is performed at the construction site, a large number of workers must be secured, which causes a problem of increasing construction cost.

The present invention is capable of solving the above problems, and its purpose is to significantly simplify the construction work at a construction site, shorten the construction period, and reduce the construction cost. To provide a structure and a construction method thereof.

[0006]

In the wall structure of a building and the construction method thereof according to the present invention, a structure according to claim 1 has a plurality of studs on both surfaces of a metal plate substantially perpendicular to the surface. A metal plate with studs fixed to each other and a metal plate different from the metal plate are crossed in a T shape or a cross shape, and a plurality of studs are fixed to the metal plate. A corner member, a metal plate having studs and a precast concrete plate on both sides sandwiching the corner member, and a cast-in-place concrete between the metal plate having studs and the corner member and the precast concrete plate. To do.

According to a second aspect of the present invention, a plurality of studs are fixed to both surfaces of the metal plate substantially perpendicularly to the surface to form a metal plate with studs, while the metal plate is different from the metal plate. After crossing the metal plates of T-shape or cross shape and fixing a plurality of studs to this to form a corner member, these metal plates with studs are joined together through the corner member to have a rectangular cross section. At the same time as starting up and allocating, a precast concrete slab is set up on both sides of the metal plate with studs and the corner member at a predetermined distance from the metal plate with studs and the corner member, and further, the precast concrete slab is placed on the form While laying uncured concrete, the metal plate with studs and corner members and the precast concrete plate are integrated. It is characterized in.

[0008]

According to the first aspect of the wall structure of the building and the method of constructing the same of the present invention, according to the first aspect, both surfaces of the metal plate are
A metal plate with studs formed by fixing a plurality of studs substantially perpendicular to this surface and a metal plate different from the metal plate are crossed in a T shape or a cross shape, and a plurality of studs are fixed to the metal plate. And a corner member joined to the metal plate with studs, and a precast concrete plate on both sides with the metal plate with studs and the corner member sandwiched therebetween,
By constructing the wall structure of the building from the metal plate with studs and the cast-in-place concrete between the corner member and the precast concrete plate, the reinforcing material as a structural material of the wall structure becomes unnecessary, and the reinforcing material at the construction site is eliminated. As a result, the assembling work can be omitted, so that the construction work of the wall structure can be simplified and the number of local workers can be reduced. Further, if the metal plate with studs and the corner member are formed in, for example, a factory, it is possible to significantly shorten the construction work at the construction site. Further, the metal plate with studs and the corner member can secure the shielding effect of the wall structure.

According to the second aspect of the present invention, for example, in a factory, a plurality of studs are fixed to both surfaces of a metal plate substantially perpendicularly to the surface to form a metal plate with studs. A metal plate different from the plate is crossed in a T shape or a cross shape and a plurality of studs are fixed to the metal plate to form a corner member. After forming these metal plates with studs and corner members, at the construction site, these metal plates with studs are joined together via the corner members, and the metal plates with studs and corner members are erected and laid out in a rectangular cross section. A precast concrete plate is erected on both sides of the metal plate with studs and at a position separated from the corner member by a predetermined distance. Then, using this precast concrete slab as a mold, uncured concrete is cast, and the precast concrete slab is integrated as a part of the wall structure. By constructing the wall structure in this way, the metal plate with studs and corner members that will be the structural material of the wall structure, and the precast concrete plate that will be the formwork during concrete pouring can be produced in advance in factories, etc. It is possible to simplify the construction work on the site, thus shortening the construction period and reducing the number of local workers. Also,
By making the metal plate with studs and the corner member and the precast concrete slab approach and separate from each other, it becomes possible to easily construct a wall structure of various thicknesses.

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 to 11 show an embodiment of a wall structure of a building according to the present invention. FIG. 1 is a horizontal cross section of a wall structure 1 of a building, and FIG. 2 is a wall structure 1 and slab structures above and below the wall structure 1. And shows a vertical cross section.

The structure of the wall structure 1 shown in FIGS. 1 and 2 is as follows. That is, as shown in detail in FIG. 3, the steel plate 2 with studs located substantially in the center of the wall thickness has a T-shaped cross section along one side of the steel plate 3 along the periphery of this surface and a pair of upper and lower end steel members. 3a, 3b and a pair of end reinforcing steel materials 3c, 3d having an L-shaped cross section are welded together, and a central reinforcing steel material having an L-shaped cross section is 2m in parallel with the end reinforcing steel materials 3c, 3d.
A plurality of studs 4 are formed by welding a plurality of studs 4 that are welded to each other at intervals of about 3e and 3f, and further have a plurality of studs 4 fixed to both surfaces of the steel plate 3 perpendicularly to the surfaces. However, they are joined by a vertical and horizontal joint structure described later and are allocated to the size of the entire wall structure 1. The steel plate 2 with studs shown in FIG. 3 is a flat plate-shaped member that is specifically allocated to the wall portion of the building, and there is also a corner member that is allocated to the corner portion of the building described later.

Both sides of the steel plate 2 with studs are covered with cast-in-place concrete 11, and the outside of the cast-in-place concrete 11 is covered with a precast concrete plate 12 (hereinafter abbreviated as PC plate). There is. P outside the cast-in-place concrete 11
The C plate 12 is a plurality of PC plates 12 formed in a predetermined size.
… Although it is allocated while maintaining an appropriate clearance. Further, a plurality of truss bars 15 are incorporated on the inner surface of the PC plate 12, and the truss bars 15 are integrated with the cast-in-place concrete 11 so that the cast-in-place concrete 11 and the PC plate 12 are solid. Is stuck to.

On the other hand, on the outer surface of the PC plate 12, an embedding plate 16 used for equipment construction after the completion of the building and the like is appropriately incorporated, and a stud anchor 17 fixed to this embedding plate 16 is the stud. The embedded plate 16 is firmly fixed to the wall structure 1 by extending toward the attached steel plate 2 side and integrating the tip side of the stud anchor 17 with the cast-in-place concrete 11. These PC plates 12 form the inner and outer surfaces of the wall structure 1 and thus the wall thickness of the wall structure 1 with the distance from the outer surface of one PC plate to the outer surface of the other PC plate. In addition, among such PC plates 12, the outer surface of the one located at the lowermost end when the wall structure 1 is constructed,
Primary metal fittings for erection 1 with nuts incorporated as shown in Fig. 2.
8 is incorporated, and a top end embedding plate 19 having a T-shaped cross section is incorporated at the upper end edge of the uppermost one.

Further, the wall structure 1 is provided with a wall through hole 21 penetrating in the horizontal direction. This wall through hole 21
Is a flange 23 on one end side at both open ends of a pre-attached sleeve 22 that is factory attached to the steel plate 2 with studs.
The post-installed sleeves 23 and 24 formed with a and 24a are externally fitted to form the hollow portions of the sleeves 22, 23 and 24, and are used for piping and wiring of a building.

On the other hand, FIGS. 6 and 7 show detailed examples of the joint structure 5 in the vertical direction and the joint structure 6 in the horizontal direction, and the joint portion of the steel plate with studs. The vertical joining structure 5 shown in FIG. 6 has through holes (not shown) in the end reinforcing steel materials 3c and 3d provided near the joining ends of the steel plate 2a with one stud and the steel plate 2b with the other stud. After being formed, a erection / position adjusting bolt 31 is installed at a position orthogonal to the longitudinal direction of these end reinforcing steel members 3c, 3d, and both studs are attached by the tightening force of the erection / position adjusting bolt 31. The steel plates 2a and 2b are temporarily joined, and the backing material 32 is attached to the joining edges of the stud-equipped steel sheets 2a and 2b along the edges, and the stud-equipped steel sheets 2a and 2a are attached by field welding. 2b is firmly joined. Further, in the horizontal joining structure 6 shown in FIG. 7, the respective end surfaces of the upper and lower end steel members 3a and 3b fixed to the joining edges of the upper steel plate with stud 2c and the lower steel plate with stud 2d are The two stud-equipped steel plates 2c, which are opposed to each other via the shim 33 and are tightened by high-strength bolts 34,
2d is joined.

The vertical and horizontal joining structures 5 and 6 shown in FIGS. 6 and 7 may be those shown in FIGS. 8 (a) to 8 (d), for example. That is, FIG. 8 (a) shows a welded joint edge of each studded steel plate 2a, 2b, and a backing material 32 is fixed to this welded portion, and FIG. 8 (b) shows each studded steel plate. The joining edges of 2a and 2b are sandwiched by splice plates 10a, and steel plates 2a and 2 with studs are attached.
b) and the splice plate 10a are formed with through holes, and then tightened with high-strength bolts 34.
After bending the joining edges of the steel plates 2a and 2b with studs, the bent surfaces are made to face each other via the shim 33,
These are tightened with high-strength bolts 34 and reinforced with ribs 10b. (D) shows that the deformed bar 10c is fixed to the studs 4 of the steel plates 2a and 2b with studs, whereby the steel plates 2a and 2d with studs are fixed. 2b is joined.
Each of these joint structures can be applied in both the vertical and horizontal directions, and it is advisable to select each joint structure according to the design and construction conditions.

Such a wall structure 1 is fixed as follows on the bottom floor of the building. That is, FIG. 9 shows the details of the support structure 41 of the wall structure 1 on the bottom floor of the building, which is provided on both lower surface sides of the steel plate 2e with studs for the lowest floor, and is perpendicular to this surface. The fixing studs 42 are fixed, and the load of the wall structure 1 is transmitted to the wall inserting bars 43 through the fixing studs 42. The wall inserting bars 43 are a foundation formed by placing concrete. Board 40
Up to the end, and the end portion thereof is embedded in the base board 40 in advance. Further, the foundation board 40 has a foundation embedded plate 45.
And the stud anchor 4 fixed to the foundation embedding plate 45.
6 and the like are embedded, and the base embedding plate 45 and the lower end steel material 3b fixed to the steel plate 2e with studs for the lowest floor are made to face each other via the level adjusting bolt 48, and these are erected. The bolts 49 are tightened, and then the ground embedding plate 45 and the lower end steel material 3b are filled with grout mortar 47 having a strength equivalent to that of the cast-in-place concrete 11 to join them.

Next, a method of constructing the wall structure 1 having the above structure will be described. 4 and 5 are views showing the allocation state of the steel plate 2 with studs and the PC plate 12 at the time of construction of the wall structure 1, and the dotted line in FIG. 5 is the steel plate 2 with studs, and the solid line. What is shown is the PC version 12 ... The steel plate with studs may be a flat plate-like member as shown in FIG. 3 or a corner member having a T-shaped cross section or a cross-shaped cross section as shown by a symbol X in FIG. The steel plate with studs is referred to as a wall unit 2A to be specifically allocated to a wall portion of a building, and the steel plate with studs having a T-shaped cross section or a cross shape is referred to as a column unit 2B to be specifically allocated to a corner portion of a building.

Wall unit 2A and pillar unit 2B
After being formed in the factory, it is shipped to the construction site. That is, in the wall unit 2A, after fixing the steel materials 3a to 3f to one surface of the steel plate 3, the plurality of studs 4 are fixed to both surfaces. Further, a pre-sleeve sleeve 22 is fixed to the portion of the wall structure 1 that is to be allocated to the position where the wall through hole 21 is formed, and a fixing stud 42 is fixed to the portion that becomes the lowest floor stud-equipped steel plate 2e. Further, in the column unit 2B, after a steel plate having a small width is welded in a T shape or a dough shape, each steel material and a plurality of studs are fixed similarly to the wall unit 2A.

The unit 2A for walls and the unit 2B for pillars are formed so that the height in the standing state is almost equal to the floor height of the building to be constructed. Due to the support structure 41 on the bottom floor, it will be allocated higher than the slab structure constructed on the wall structure 1. When assembling a plurality of wall units 2A in a factory, as shown in FIG. 10, the reinforcing steel material 3e or 3f having an L-shaped cross section is formed at the joint edge of each wall unit.
Can be used as a backing material.

Similar to the formation of the units 2A and 2B,
The PC plate 12 is also formed at the factory. In other words, PC version 12
Is manufactured by casting a mold of a predetermined size and pouring concrete into the mold. Further, the embedded plate 1
6. The top embedding plate 19 and the like are simultaneously assembled and formed in the factory. While the wall unit 2A, the pillar unit 2B, and the PC plate 12 are formed in the factory, the building is constructed at the construction site by the following construction procedure.
First, on the lowest floor of the building, a stud anchor 46, a level adjusting bolt 48 and a erection bolt 4 as shown in FIG.
The base embedding plate 45 to which 9 is fixed, the wall insertion bar 43, the level adjusting bolt 52 and the erection anchor bolt 54 shown in FIG. 2 are arranged, and concrete to be the base board 40 is poured.

After the concrete is poured, the wall unit 2A and the pillar unit 2B are sequentially allocated in accordance with the building section as shown in FIG. 4, for example. In this allocation, the pillar unit 2B is arranged first, and then the wall unit 2A is arranged between the pillar units 2B. In these units 2A and 2B, after adjusting the level adjusting bolt 48 to a predetermined level, the lower end steel material 3 shown in FIG.
After b is temporarily tightened with the erection bolt 49 to temporarily fix its legs, it is corrected by a temporary material such as a wire rope or a support (not shown). After the steady rest is completed, the erection bolts 49 are fully tightened to firmly fix the units 2A and 2B. Further, the lower end steel material 3b and the foundation embedding plate 45
In the meantime, the grout mortar 47 is filled to complete the erection of the steel plate 2 with studs. At this time, each unit 2A,
2B is fixed with the erection / position adjusting bolt 31 via the end reinforcing steel materials 3c and 3d shown in FIG.

When the wall structure is continuously constructed on the wall structure 1 shown in FIG. 2 through the slab structure, each unit 2A, 2B stands up to about 500 mm from the top of the slab structure and is manufactured by a factory. According to this, each unit 2A, 2B of the wall structure on the lower floor and each unit 2 of the wall structure on the upper floor
It becomes easy to join the A and 2B in the horizontal direction. After the construction of each unit 2A, 2B is completed, vertical field joining between the units is performed by any of the methods shown in FIG. 6 or FIGS. 8 (a) to 8 (d). This joining is appropriately determined for each part according to the design and construction conditions.

Then, the PC plates 12 are allocated to both sides at a predetermined distance from the units 2A and 2B which have been joined in the vertical and horizontal directions. The allocation of the PC plates 12 is as shown in FIG. 4, for example, and the surfaces on the side where the truss lines 15 are incorporated are arranged inward. As shown in FIG. 2, the lower part of the PC plate 12 is fixed to the building metal plate 18 and the foundation board 40 (however, the upper floor is a slab structure) incorporated in the PC plate 12 by the building metal plate. Bolt 55 through 53
Then, the anchor bolts 54 are tightened, and the grout mortar 51 is filled in the gap between the base board 40 and the lower portion of the PC plate 12.
The top of the PC plate 12 is fixed to the top embedding plate 19 and each of the units 2A and 2B through a PC plate connecting steel material (not shown) so as to be firmly fixed by bolts or welding. In addition,
The height of the PC plate 12 in factory production is set to the lower end of the slab structure constructed on the wall structure 1 shown in FIG.

After the PC plate 12 has been built, the PC plate 1 and the wall through holes 21 used for piping and wiring of the building shown in FIG.
The clearance gap 2 in the vertical direction is processed by the PC plate joint formwork 14 to prevent concrete leakage during concrete pouring. The wall through-hole 21 is fixed by welding the post-installing sleeves 23 and 24 to both open ends of the pre-installing sleeve 22 that is pre-assembled in the steel plate 2 with studs, and these pre-installing and post-installing sleeves 22, 23 and 24 are hollow. It is composed of parts. Further, although not shown, if there are wall reinforcements or the like necessary for structural design, they are firmly tightened and arranged on the PC plate 12 or the steel plate 2 with studs so as not to move during concrete pouring.

After that, in the space between the PC unit 12 and the wall unit 2A and the column unit 2B allocated as described above, a concrete vibrator or the like is used to cast the uncured cast concrete 11 in place. Is densely placed up to the top of the PC plate 12. This cast-in-place concrete 1
After 1 is hardened, the formwork 14 shown in FIG. 1 and the secondary metal fittings 53 for construction, the anchor bolts 54, etc. shown in FIG. 2 are removed so that there are no protrusions on the wall and floor.

Thereafter, the slab form 63 and the PC plate upper fixing steel material 66 shown in FIG.
4, 65 are laid out, slab concrete is placed, and the upper slab structure 62 is constructed. Prior to placing the slab concrete, an anchor bolt 54 for building and a level adjusting bolt 52 for constructing the wall structure 1 on the upper floor, and wall reinforcing bars (not shown) necessary for the structure are provided respectively in the slab structure. The wall structure above the slab structure 62 is preliminarily assembled at a predetermined position to prepare for construction. Repeat this work,
Building 1st floor wall structure, 2nd floor slab structure, 2nd floor wall structure,
The slab structure on the third floor will be constructed in sequence.

When the building is constructed in this manner, not only the steel plate 2 with studs that serves as a structural material for the wall structure and the PC plate 12 that serves as a formwork during concrete pouring but also most of the other structural materials are prepared in advance. Since it can be produced in a factory or the like, it is possible to simplify the construction work at the construction site, thus shortening the construction period and reducing the number of local workers. In addition, by appropriately approaching or separating the distance between the steel plate 2 with studs and the PC plate 12, it is possible to construct a wall structure of various thicknesses, especially a building with a large wall thickness such as a nuclear facility. Is very suitable for construction.

FIG. 11 collectively shows a combination pattern of steel materials constituting the pillar unit 2B and a joint pattern at the construction site of the wall unit 2A and the pillar unit 2B in the vertical direction. Rational construction can be realized by appropriately combining the patterns according to the pattern in this figure in consideration of design and construction conditions.

[0030]

As is clear from the above description, according to the wall structure of a building and the construction method thereof of the present invention, the following effects can be obtained. According to what is stated in claim 1,
A metal plate with studs, in which a plurality of studs are fixed to both surfaces of the metal plate substantially perpendicularly to this surface, and a metal plate different from the metal plate are crossed in a T shape or a cross shape, and a plurality of studs are crossed over this. A corner member joined to the metal plate with studs, a PC plate on both sides sandwiching the metal plate with studs and the corner member, and the metal plate with studs, the corner member and the PC plate. By constructing the wall structure of the building from in-situ concrete between
Since the reinforcing material as a structural material of the wall structure is not necessary, the work of assembling the reinforcing material at the construction site can be omitted,
Therefore, the construction work of the wall structure can be simplified and the number of local workers can be reduced. Further, if the metal plate with studs is formed in a factory, for example, the construction work at the construction site can be greatly shortened.

According to the second aspect of the present invention, a metal plate with studs and a corner member, which are structural materials of a wall structure, and a PC plate, which is a formwork for concrete pouring, are produced in advance in a factory or the like. Therefore, the construction work at the construction site can be simplified, the number of local workers can be reduced, and the construction period can be greatly shortened. In addition, the wall structure with various thicknesses can be easily constructed by bringing the metal plate with studs and the corner member close to and away from the PC plate.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view of a wall structure shown as an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of the same wall structure and upper and lower slab structures.

FIG. 3 is a front view and a side view of a plate-shaped steel plate with studs.

FIG. 4 is a plan view showing an allocation state of a steel plate with studs and a PC plate at a work site.

FIG. 5 is a development view of the same.

FIG. 6 is a detailed view showing a vertical joint structure of steel plates with studs.

FIG. 7 is a detailed view showing the joint structure in the horizontal direction.

FIG. 8 is a diagram showing another example of a vertical and horizontal joint structure.

FIG. 9 is a detailed view showing a structure for supporting a steel plate with studs on a base plate.

FIG. 10 is an explanatory view showing an example of assembly of steel plates with studs in a factory.

FIG. 11 is a chart showing a combination of a column unit and a wall unit, and a field joining pattern in the vertical direction.

[Explanation of symbols]

 1 Wall structure 2 Steel plate with stud 3 Steel plate 4 Stud 11 Cast-in-place concrete 12 PC version X Corner member

Claims (2)

[Claims] 1. A metal plate with studs, comprising a plurality of studs fixed to both surfaces of a metal plate substantially perpendicularly to the surface,
A metal plate different from the metal plate is crossed in a T shape or a cross shape, and a plurality of studs are fixed to the metal plate;
A corner member connected with the metal plate with studs,
A wall structure of a building comprising a precast concrete slab on both sides of the metal plate with a stud and a corner member, and a cast-in-place concrete between the metal plate with a stud and a corner member and the precast concrete plate. . 2. A metal plate with studs is formed by fixing a plurality of studs on both sides of the metal plate substantially perpendicularly to the surface, and a metal plate different from the metal plate is T-shaped in cross section or After forming a corner member by crossing in a cross shape and fixing a plurality of studs to this, these metal plates with studs are joined together through the corner member, and are erected and laid out in a rectangular cross section, and the studs are attached. On both sides of the metal plate and the corner member, a precast concrete slab is set up at a predetermined distance from the metal plate with studs and the corner member, and further, uncured concrete is cast using the precast concrete slab as a formwork. Construction of the wall structure, characterized in that the metal plate with studs and corner member and the precast concrete plate are integrated. Method.