JPH11324182A - Wall structure and construction method thereof - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To improve the workability, shorten the construction period, and reduce costs by reducing the size of individual members. SOLUTION: A vertical wall streak 1 is provided at an installation target position of a wall structure 11.
Are arranged in parallel with each other, and along the vertical wall bars 18, a horizontal wall bar 28 is buried inside and an end 28 of the horizontal wall bar 28 is provided.
The precast plate 20 formed so that a protrudes from the side end surface 20a is moved in the direction A (the direction in which the vertical wall streaks 18,... are arranged).
Are arranged at regular intervals, and the lateral wall streaks 28, which protrude from the precast plates 20, 20 adjacent to each other in the A direction,
The end portions 28a of the 28 are continuous with each other by a lap joint 33, and the lap joint 33 is covered from both sides in the direction A by a pair of reinforcing plates 35, 35, so that the wall surface continuous with the reinforcing plate 35 and the precast plate 20 is formed. 11a
Is formed, and concrete C is filled between the reinforcing plates 35, 35.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall structure provided on the surface of a building frame and a method of constructing the same.

[0002]

2. Description of the Related Art As is well known, various construction methods have been realized in which precast concrete members and cast-in-place concrete are used together in constructing each part of a building frame. Such a construction method has the same workability as the construction method using precast concrete members, and compared to the case using only precast concrete members,
This has an advantage that each member can be reduced in size, and operations such as transportation and transfer of materials can be easily performed.

FIGS. 3 and 4 are views showing an example in which a precast concrete member and cast-in-place concrete are used together to form a wall structure in a building.
Here, FIG. 3 shows that a vertical wall streak 4
In this case, the precast plates 6 and 6 are arranged from the outside, and in this case, the precast plates 6 and 6 are cast into the vertical wall reinforcement 4 and the horizontal wall reinforcement 5. It also serves as a concrete formwork.

[0004] On the other hand, Fig. 4 shows an example in which a precast plate 9 in which a horizontal wall streak 8 is built in advance is used.
Ends 8a, 8a of the lateral wall streaks 8, 8 projecting from the side end faces 9a, 9a of 9 are connected to each other via a joint 10, and concrete is cast on the joint 10.

[0005]

However, the wall structure shown in FIGS. 3 and 4 has the following problems. That is, in the wall structure 1 shown in FIG. 3, the same bar arrangement work as that of a structure using ordinary cast-in-place concrete is required, and concrete placement work is performed on the vertical wall reinforcement 4 and the horizontal wall reinforcement 5. Is required, the effect of reducing the number of work steps is small, and thus there is a problem that it is not possible to sufficiently reduce the cost and the work period. In this case, the vertical wall reinforcement 4 and the horizontal wall reinforcement 5
Since it is necessary to determine the thickness dimension of the precast plate 6 by the casting pressure of the concrete to be cast, it is not possible to sufficiently cope with a case where a reduction in wall thickness is required.

On the other hand, in the wall structure shown in FIG. 4, since most of the wall structure is formed by the precast plates 9,..., The individual precast plates 9,.
It becomes heavy, making transportation and installation work difficult. Also, in order to reduce the size of the precast version 9, ...
When the wall structure is divided into a large number of precast plates 9,..., The number of joints 10 at the ends 8a of the lateral wall streaks 8 increases, which not only complicates the installation work of the joints,
Construction management becomes difficult.

[0007] The present invention has been made in view of such circumstances, and by reducing the size of individual members, the transportation and installation work is facilitated, and the cost and the construction period are reduced as compared with those in the related art. It is an object to provide an advantageous wall structure and a construction method thereof.

[0008]

Means for Solving the Problems To solve the above problems, the present invention employs the following means. That is,
The wall structure according to claim 1 is a wall structure provided in the surface of a frame of a building, wherein the first wall and the second wall are horizontally arranged in a state where their side end surfaces are in contact with each other. The first wall body is formed so that the lateral wall streaks protrude in the horizontal direction from the side end surface thereof, and the end portions of these protruding lateral wall streaks are It is configured to form a joint part integrally with an end of a lateral wall streak projecting from a side end surface of the other first wall facing the second wall, and the second wall is And a concrete plate cast on the joint portion, and a reinforcing plate provided so as to cover the concrete from outside.

This wall structure can be divided into a first wall and a second wall, and the second wall is formed by a reinforcing plate and cast-in-place concrete. Therefore,
In this wall structure, individual members to be used can be reduced in size and weight.

[0010] The wall structure according to claim 2 is the wall structure according to claim 1, wherein the first wall is formed by stacking a pair of precast plates, and the lateral wall streaks are formed of one of them. The part is embedded in the precast plate, and both ends thereof are arranged so as to protrude from side edges of the precast plate.

[0011] In this wall structure, the first wall body can be further divided into a pair of precast plates to further reduce the size of the members used.

The wall structure according to a third aspect is the wall structure according to the second aspect, wherein the precast plate is provided with notches at both side edges of a surface located outside the wall structure. A concave portion is provided at the center of the back surface located inside the wall structure, the lateral wall streak is disposed so as to penetrate the concave portion, and the cutout portion is a side end of the reinforcing plate. It is characterized in that it is configured to engage with the edge.

In this wall structure, it is possible to reduce the weight of the precast plate by providing a concave portion in the precast plate. A continuous wall surface can be formed by the plate.

According to the fourth aspect of the present invention, there is provided a wall structure.
In the wall structure according to any one of the above, an end portion of the lateral wall streak is formed as a fixing end portion for securing fixing strength to the concrete, and the joint portion is formed as a lap joint. It is characterized by.

[0015] With such a configuration, in the wall structure, it is not necessary to weld the ends of the lateral wall streaks or to provide a sleeve and join them together.

According to a fifth aspect of the present invention, there is provided a wall structure.
The wall structure according to any one of the above, wherein the horizontal wall reinforcement forms an earthquake-resistant structure integrally with the vertical wall reinforcement embedded inside the first and second wall bodies. .

With such a configuration, this wall structure can be used as an earthquake-resistant wall.

According to a sixth aspect of the present invention, the wall structure is a method for constructing a wall structure provided in a structure of a frame of a building, wherein vertical wall bars are arranged in parallel at the installation positions of the wall structure in the structure. And
Along the vertical wall streaks, a precast plate in which a horizontal wall streak is buried inside and an end of the horizontal wall streaks protrudes from a side end face is parallel to the arrangement direction of the vertical wall streaks, and , Arranged at a constant interval in the arrangement direction, a joint is provided between the end portions of the lateral wall bars protruding from the precast plates adjacent to each other in the arrangement direction, these lateral wall streaks are connected to each other, the joint Is covered from both sides in the arrangement direction by a pair of reinforcing plates, a continuous wall surface is formed by the reinforcing plates and the precast plate, and concrete is filled between the reinforcing plates.

Because of such a configuration, the construction method of the construction method of the wall structure does not require any formwork.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a diagram showing a schematic configuration of the wall structure 11 according to one embodiment of the present invention. As shown in the figure, the wall structure 11 is composed of pillars 12 and 12 and a beam 1 of a building.
, 3 and 13, the first wall 16,... And the second wall 17,. It is configured to be alternately connected so as to be in contact with each other.

FIG. 1A is a view showing a plane cross section of the wall structure 11. As shown in the figure, the first wall bodies 16 are arranged so as to cover the vertical wall streaks 18,... From both sides and are connected to each other by the width fixing bolts 19,. It is configured to include a pair of precast plates 20, 20 and concrete C cast between the precast plates 20, 20.

FIG. 1B is an enlarged view of the precast plate 20. As shown in the figure, the precast plate 20 has a surface 2 which is arranged outwardly of the wall structure 11.
2 are provided with cutouts 23 at the side edges 22a, 22a, and the rear surface 2 arranged inwardly of the wall structure 11.
5, a concave portion 26 is provided in the central portion 25a.

Further, as shown in the figure, the precast plate 20 has a structure in which lateral wall streaks 28 are embedded. These lateral wall streaks 28 are arranged in the horizontal direction, and their ends 28a, 28a
0a, 20a and a central portion 28b thereof.
Penetrate the recess 26. Also, end 2
8a and 28a are bent in a substantially U-shape so that the fixing strength to the concrete C can be secured.

A weld mesh 30 is embedded in the surface 22 of the precast plate 20, and
Cotter 31 for improving the fixation of concrete C
Are formed.

Since the precast plates 20,... Have such a configuration, as shown in FIG. 1 (a), the first wall body 16 is moved from the side end faces 16a, 16a to the lateral wall streaks 28.
End portions 28a, 28a are projected. Further, the end portion 28a of the lateral wall streak 28 is connected to the side end surface 1 of the other first wall body 16 which is disposed with the second wall body 17 therebetween.
A lap joint 33 is formed together with the end 28a of the lateral wall streak 28 projecting from 6a.

On the other hand, the second wall 17 is
, And a reinforcing plate 35 made of a precast concrete slab formed so as to cover the lap joint 33 and the vertical wall reinforcement 18. ing.

FIG. 1C is a view showing the structure of the reinforcing plate 35. As shown in FIG.
5A, a cotter 36 for fixing the concrete C is formed. Further, as shown in FIG. 1A, the reinforcing plate 35 has a configuration in which both end edges 35b, 35b are engaged with the notches 23 formed in the precast plate 20. 23 is fixed by width fixing bolts 19.

As shown in FIG. 1 (a), the first wall 16 and the second wall 17 are assembled to form the horizontal wall bars 28,.
8, ... are united to form an earthquake-resistant structure.

In order to obtain the wall structure 11 configured as described above, first, the wall structure 11 in the surface of the frame of the building is to be obtained.
Are arranged side by side at the installation target position of. Next, the precast plates 20,... Are arranged at predetermined intervals in the direction of arrangement of the vertical wall streaks 18,. These are connected to each other using the width fixing bolts 19. At this time, the precast plates 20 and 2 adjacent to each other in the A direction
In the interval 0, the ends 28a of the lateral wall streaks 28 are
The lap joint 33 is formed by being superposed as shown in FIG.

Next, concrete C is filled between the precast plates 20, 20 which are arranged opposite to each other with the vertical wall bars 18,. Further, a reinforcing plate 35 is disposed between the precast plates 20 adjacent to each other in the direction A, and these are integrated with the precast plates 20 using the width fixing bolts 19. Thereby, the wall surface 11a (see FIG. 1A) of the wall structure 11 is made continuous, and the vertical wall bars 18,... Located between the first wall members 16, and the lap joint 33 are covered from the outside. To

Further, the reinforcing plate 35 is disposed as a discarding frame, and the reinforcing plates 3 which are arranged opposite to each other with the vertical wall bars 18,.
By filling concrete C between 5, 35
A wall structure 11 as shown in FIG.

The above-described wall structure 11 has a structure divided into a first wall 16 and a second wall 17,
Since the second wall 17 is formed by the cast-in-place concrete C and the reinforcing plates 35, 35, each member to be used can be reduced in size and weight, thereby improving workability and improving workability. It is possible to facilitate carrying in and out of each member. Therefore, the wall structure 11 can be effectively applied when the size of each member at the time of carrying in and out is restricted, such as reinforcement work of an existing building or construction on a basement floor by a reverse construction method. Further, in this case, since the horizontal wall bars 28 are embedded in the first wall 16 in advance, it is only necessary to perform the bar arrangement work only on the vertical wall bars 18, and it is possible to reduce the work load. it can.

Further, in the above-described wall structure 11, the first wall body 16 is divided into precast plates 20, 20, and the precast plates 20 are provided with horizontal wall bars 28,.
Is buried, so that the work can be further facilitated.

Further, the reinforcing plate 35 is attached to the precast plate 20.
Is provided with the notch portions 23 that engage with the both end edges 35b, 35b, the reinforcing plate 35 can be satisfactorily fixed to the precast plate 20 and the work can be facilitated. Further, by providing the concave portion 26 in the precast plate 20, the weight of the precast plate 20 can be further reduced, so that the workability can be improved.

Further, the lateral wall streak 28 is formed so that the tip of the end 28a is bent in a substantially U-shape to secure the fixing strength to the concrete C, and the end 28a is formed.
a is formed integrally with the end 28a of the lateral wall bar 28 protruding from the other precast plate 20 to form the lap joint 33. Therefore, unlike the conventional method, the horizontal reinforcing bars are connected to each other. Therefore, it is not necessary to use means such as welding or a sleeve, so that the work can be facilitated and the construction period can be shortened, and the construction management can be ensured.

In the wall structure 11, the anti-seismic structure can be easily formed by the horizontal wall reinforcements 28,... Embedded in the precast plate 20 and the vertical wall reinforcements 18,. Therefore, it is suitable for seismic reinforcement of an existing building and the like, and it is possible to facilitate the construction compared to the related art. In particular, while the wall structure using the conventional precast concrete slab was mainly used to form the partition wall, according to the wall structure 11, the application range of the method using the precast slab was expanded. Can be achieved.

Further, according to the method of constructing the wall structure 11, the precast plates 20, 20 and the reinforcing plates 35, 3
Since 5 can be used as a formwork for placing concrete C when forming the first and second wall bodies 16 and 17, no formwork work is required. Thereby, it is not necessary to consider the curing period of the concrete C, and it is possible to immediately proceed to the next step, so that the construction period can be shortened.

In the above embodiment, other configurations may be adopted without departing from the spirit of the present invention. For example, in the above-described embodiment, the end portion 28a of the lateral wall streak 28 is bent in a substantially U-shape so as to secure the fixing strength with the concrete C, but instead, a fixing plate, The fixing strength to the concrete C may be ensured by providing a nut or the like at the end 28a of the lateral wall streak.

[0039]

As described above, the wall structure according to the first aspect is divided into the first wall and the second wall, and the second wall is cast in place. Since it is formed of concrete and a reinforcing plate, each member to be used is reduced in size and weight as compared with the prior art, thereby improving workability and facilitating the loading and unloading of each member. Becomes possible. Therefore, this wall structure can be effectively applied when the size of each member at the time of carrying in and out is restricted, such as reinforcement work of an existing building and construction on a basement floor by a reverse construction method. Further, in this case, since the lateral wall reinforcement is buried in the first wall in advance, it is possible to facilitate the arrangement work.

In the wall structure according to the second aspect, the first wall is divided into a pair of precast plates, and the horizontal wall is buried in these precast plates. Therefore, the installation work can be further facilitated.

In the wall structure according to the third aspect of the present invention, notches are provided on the precast plate to engage with both edges of the reinforcing plate, so that the reinforcing plate can be fixed well to the precast plate. And work can be facilitated. Further, by providing the concave portion in the precast plate, the precast plate can be further reduced in weight, and the workability can be improved.

In the wall structure according to the fourth aspect, the end of the horizontal wall is formed as a fixing end for securing the fixing strength with concrete, and this end is formed as an end of another horizontal wall. Unlike the conventional construction method, there is no need to use welding or sleeves to connect the horizontal reinforcing bars, unlike the conventional construction method. The construction period can be shortened, and the construction management can be ensured.

In the wall structure according to the fifth aspect, since the horizontal wall reinforcement and the vertical wall reinforcement buried in the precast plate form an earthquake-resistant structure, they are excellent for seismic reinforcement of existing buildings and the like. And construction can be performed more easily than in the past. Also, in particular, while the wall structure using the conventional precast concrete slab was mainly used to form the partition wall, according to this wall structure, the application range of the method using the precast slab is It is possible to achieve enlargement.

In the method for constructing a wall structure according to the sixth aspect, since the reinforcing plate can be used as a formwork at the time of placing concrete, no formwork work can be required, thereby reducing It is no longer necessary to consider the curing period of the product, so that it is possible to immediately proceed to the next step.
Therefore, the construction period can be shortened.

[Brief description of the drawings]

FIGS. 1A and 1B are diagrams schematically showing an embodiment of the present invention, wherein FIG. 1A is a plan sectional view of a main part of a wall structure, and FIG.
(A) is a plan sectional view showing a structure of a precast plate used for the wall structure shown in (a), and (b) is a plan sectional view showing a structure of a reinforcing plate used for the wall structure shown in (a).

FIG. 2 is a front view showing the appearance of the wall structure shown in FIG.

FIG. 3 is a plan sectional view of an earthquake-resistant wall using a precast concrete member showing a conventional technique of the present invention.

FIG. 4 is a plan sectional view of an earthquake-resistant wall using a precast concrete member showing another example of the prior art of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Wall structure 11a Wall surface 14 Construction surface 16 First wall body 16a Side end surface 17 Second wall body 17a Side end surface 18 Vertical wall streaks 20 Precast plate 20a Side end surface 22 Surface 22a Side edge 23 Notch portion 25 Back surface 25a Center Part 26 Concave part 28 Side wall streaks 28a End part 28b Central part 33 Lap joint 35 Reinforcement plate 35b Both end edges

Claims (6)

[Claims] 1. A wall structure provided in the surface of a frame of a building, wherein a first wall and a second wall are alternately arranged in a horizontal direction with their side end surfaces in contact with each other. The first wall body is formed such that horizontal wall streaks protrude horizontally from the side end surface thereof, and the end portions of these protruding horizontal wall streaks are the second wall members. It is configured to form a joint part integrally with an end of a lateral wall streak protruding from a side end surface of the other first wall facing the other wall, and wherein the second wall is the joint A wall structure comprising: a concrete poured into a portion; and a reinforcing plate provided so as to cover the concrete from outside. 2. The wall structure according to claim 1, wherein the first wall is formed by overlapping a pair of precast plates, and a part of the lateral wall streak is embedded in the precast plate. And a wall structure wherein both ends thereof are protruded from side edges of the precast plate. 3. The wall structure according to claim 2, wherein the precast plate is provided with cutouts at both side edges of a surface located outside the wall structure, and is provided inside the wall structure. A concave portion is provided in the center of the rear surface located at the position, the lateral wall streak is arranged to penetrate the concave portion, and the cutout portion engages with a side edge of the reinforcing plate. A wall structure having a configuration. 4. The wall structure according to claim 1, wherein an end of the lateral wall is formed as a fixing end for securing fixing strength to the concrete, and the joint portion is provided. Is a wall structure formed as a lap joint. 5. The wall structure according to claim 1, wherein the horizontal wall is integrated with a vertical wall buried inside the first and second wall bodies. A wall structure characterized by forming an earthquake-resistant structure. 6. A method for constructing a wall structure provided in the surface of a frame of a building, comprising: arranging vertical wall reinforcements in parallel at the installation target positions of the wall structures in the surface of the building; A precast plate formed so that the horizontal wall reinforcement is buried inside and the end of the horizontal wall reinforcement protrudes from the side end surface, in parallel with the arrangement direction of the vertical wall reinforcement, and in the arrangement direction. A joint is provided between the end portions of the lateral wall bars projecting from the precast plates adjacent to each other in the arrangement direction at regular intervals, and these lateral wall bars are connected to each other. A continuous wall surface is formed by the reinforcing plate and the precast plate, and concrete is filled between the reinforcing plates.