JP2566477B2 - Outer wall construction method - Google Patents

Description

TECHNICAL FIELD The present invention relates to an outer wall construction method, and more particularly to a construction method using a prefabricated wall body.

[Conventional technology]

Conventionally, when building an outer wall, as in reinforced concrete construction, a method of placing the wall formwork, beam formwork, and slab formwork and then placing concrete to build the outer wall, beam, and slab integrally, The prefabricated concrete wall is made in advance and the prefabricated concrete prefabricated wall is connected to the beams and pillars, and steps are provided on the inner four sides, and the steps are inserted from this step. After prefabricating a wall body that exposes the streak, and by building up this wall body and binding the insertion bar to the slab insertion bar, column rebar, beam rebar, etc. There was a method of placing concrete on the part.

[Problems to be Solved by the Invention]

However, in reinforced concrete construction, it is necessary to assemble all the wall formwork, and there is the inconvenience that it is not possible to cope with the shortage of formwork workers, and in the case of using precast concrete wall bodies, this ready-made wall There is an inconvenience that it takes time and effort to connect the body and the surroundings, and this connection cost becomes expensive. And in the one that uses the ready-made wall body that exposes the insertion streak from the step portion of the inner surface side four rounds, a formwork that covers the four round step portions of the wall body is required,
This also has the problem that it costs formwork costs and assembly costs.

Therefore, an object of the present invention is to make it possible to construct an outer wall by using a ready-made wall body while extremely reducing the use of a mold, and an object thereof is to easily construct an outer wall.

[Means for solving the problem]

The present invention has been made in consideration of the above problems,
A ready-made wall body having corresponding portions facing the beam on each of the inner surface sides of the upper and lower ends, and a plug-in bar can be arranged at each of the upper and lower corresponding portions is connected to the upper end of the preceding wall body of the lower hierarchy. At the same time, the corresponding portion on the lower end side of the wall body is made to correspond to the beam building space formed by standing up the continuous beam formwork on the slab formwork for floor construction, and the insertion line is provided from the corresponding portion on the lower end side to the beam. A slab type for arranging in the building space, striking concrete into the beam building space of the floor at the time of concrete pouring of the floor to integrate the lower end of the wall body and the beam, and forming the floor, after building the floor. A frame and a beam form that is continuous with this slab form are set up, and the corresponding part on the upper end side of the wall body is made to correspond to the beam construction space of the upper floor, and the insertion line is formed from the corresponding part on the upper end side. Arranged in the beam construction space on the upper floor, and the corresponding portion on the upper end side. The mounting jig provided is supported by a steel frame or a reinforcing bar arranged in the beam construction space of the upper floor, and the upper wall of the wall corresponding to the upper floor is connected to the upper end of the wall, and In the beam building space of the upper floor, the lower end side corresponding portion of the upper floor wall body is made to correspond to the beam building space of the upper floor, and the insertion line is inserted from the lower end side corresponding portion of the upper floor wall body. And the concrete is cast into the beam construction space of the upper floor when the concrete is placed on the upper floor so that the upper end of the wall body, the beam of the upper floor and the lower end of the wall body of the upper floor are integrated. The above problem is solved by providing an outer wall construction method characterized by the above.

[Work]

In the present invention, the outer wall is formed by connecting ready-made wall bodies in the vertical direction and the horizontal direction.
The upper and lower corresponding parts of each of the walls are opposed to the beam building space, and from this corresponding part, the insertion bar is arranged in the beam building space to connect with the beam bar, etc. Concrete pouring in the space, the upper and lower ends of the wall and the beam are integrated, and the work of integrating the lower end of the wall and the beam and the upper end of the wall and the beam are performed for each floor. As a result, the wall body is continuously constructed to construct the outer wall.

〔Example〕

Next, the present invention will be described in detail based on the embodiments shown in FIGS. 1 to 6.

In the figure, reference numeral 1 denotes a wall body, and the wall body 1 has a step portion 2 on the inner surface of the upper end and a step portion 3 on the inner surface of the lower end as shown in FIG. It is manufactured in advance with the insertion line exposed. The step portion 2 is a corresponding portion that is integrated with a beam that is passed to the upper part of the floor where the wall body 1 is installed, as will be described later. From the step portion 2,
The insertion bar 20 bent in a U shape and the insertion bar 21 having a rod shape are exposed. Further, the step portion 3 is a corresponding portion that is integrated with a beam located below the layer in which the wall body 1 is installed, and a bar-shaped insertion streak 30 is exposed from the step portion 3.

The wall 1 is manufactured separately from the building construction, and is obtained by horizontally arranging a bar in a factory or other department of a construction site and then scoring concrete. It should be noted that, during transportation, the insertion streak exposed from each of the step portions 2 and 3 is appropriately bent so as not to project much from the step portion.

When constructing an outer wall using this wall body 1, as shown in FIG. 2, it is connected to a steel frame or a reinforcing bar in a beam construction space A in which a continuous beam formwork is set up in advance in a slab formwork for floor construction. The wall body 1 is connected to the upper end of the preceding wall body 4 (having the same structure as the wall body 1) in the opened state. As shown in FIG. 2, for example, a mounting jig 5 is embedded in the preceding wall body 4, and the mounting jig 5 is connected to a steel frame 7 through a tan buckle 6 so as to be adjustable in and out. U-shaped insertion line from the upper end step of the preceding wall body 4 to the beam construction space A side
40 and a bar-shaped plug-in streak 41 are arranged.

The wall body 1 is installed in the beam building space A in this state. First, the dowel hole located at the upper end face of the preceding wall body 4.
A wall jig is attached to a suspending jig 43 provided on 42 so that the outer surface of the wall body 1 is flush with the preceding wall body by inserting it into a connecting member 31 made of a pipe or the like on the lower end face of the wall body 1. A sealing material 8 is interposed between the wall body 1 and the preceding wall body 4.

In addition, the insertion line 30 which is exposed from the lower end 3 of the wall body 1
Is drawn into the beam construction space A and bound to the stirrups 9 and the like. The length of the plug-in streak is 40 times or more the diameter, but it can be shortened by examining the structure.

In this way, the wall body 1 is connected to the preceding wall body, and the step portion on the lower end side is made to correspond to the beam building space, and the insertion streak is pulled out into the beam building space. Concrete is placed, concrete is poured into the beam structure space, and the lower end of the wall body and the beam are integrated.

After this, pillar formwork, beam formwork, slab formwork were set up,
The step portion 2 on the upper end side of the wall body 1 is made to correspond to the built-up beam construction space B. Similar to the preceding wall body 4 described above, the upper end of the wall body 1 connects the embedded mounting jig 5 to the steel frame 7 via the tan buckle 6 to adjust the entrance / exit of the wall body 1. Further, the U-shaped insertion bar 20 exposed from the step portion 2 is located in the beam construction space B so as to face the stirrup bar 10 surrounding the steel frame 7, and the insertion bar 21 is folded to the steel frame side. It is bent and placed in the beam construction space B in a state of being connected to the stirrups 10 by binding or the like.

And the work is the installation work of the wall on the upper floors.
At this time, the wall body 1 becomes the preceding wall body, and like the preceding wall body 4, a new wall body 11 (having the same structure as the wall body 1) is added to the upper end of the wall body 1. The wall 1 and the new wall 11 are connected via a connecting member, and the insertion line from the step portion on the lower end side of the wall 11 is drawn into the beam construction space B and connected. After this, concrete pouring is performed so that the upper end of the wall body 1 is integrated with the beam and the lower end of the wall body 11 is integrated with the beam. As a result, the outer wall of the wall body 1 is constructed integrally with the upper and lower beams C (fourth
Fig.), Connecting work of the above-mentioned wall body to the preceding wall body, connecting work to the beam building space at the lower end step, concrete placing work, standing up work of the formwork, connecting to the beam building space at the upper end step By repeating the work, the outer wall having continuous wall bodies is constructed.

Although the above-mentioned wall body corresponds to the stepped portions provided on the inner surface side of the upper and lower ends, as shown in FIG. The surface portions 12 and 13 that are continuous with the inner surface of the portion may be provided as corresponding portions so that the inner surface side of the wall body 1 is flush. In this case, the top surface
Anchor hardware is preliminarily attached to each of 12 and the bottom surface portion 13.
14 is driven in, and a reinforcing bar 15 having a predetermined length is connected to the anchor metal piece 14 so that a plug-in bar can be obtained.

That is, after the wall body 1 is connected to the upper end side of the preceding wall body 4 in the same manner as in the above-described embodiment, the reinforcing bar 15 is connected to the anchor metal piece 14 and is inserted from the surface portion 13 toward the beam building space A. After arranging the reinforcement (rebar 15) and also corresponding to the beam building part in the surface part 12, connect the reinforcing bar to the anchor metal piece 14 of this surface part 12 and position the insertion bar toward the beam building space. (Fig. 5 shows an example in which the reinforcing bar 15 is connected to the anchor metal piece 14 at the surface portion on the upper end side of the preceding wall body 4). When the reinforcing bars are connected to the surface of the wall body 1 after setting as described above, the building of the wall body 1 becomes easier.

Then, similar to the above-described embodiment, the connecting work to the preceding wall body, the connecting work to the beam building space at the lower end side surface, the concrete placing work, the standing work of the formwork, the connecting work to the beam building space at the upper end side surface. By repeating the work, an outer wall having continuous wall bodies can be obtained (Fig. 6).

In addition, in the outer wall portion continuous with the pillar, a wall body having a step portion in which the reinforcing bar is exposed on the inner surface side of the side end corresponding to the pillar construction space is manufactured in advance, and this wall is provided at a predetermined position. The body may be used, and the column portion is constructed integrally so as to contact the reinforcing bar exposed on the inner surface side of the side end (that is, the reinforcing bar is not arranged on the column building space side). By doing so, it becomes possible to design a structurally clear pillar without adding rigidity to the pillar such as a sleeve wall and without forming a short pillar when there is an opening.

In addition, although this embodiment has been described based on the case of building a building made of steel-framed reinforced concrete, it can also be adopted when building a building made of reinforced concrete.

〔The invention's effect〕

As described above, according to the present invention, the ready-made wall body having the corresponding portions facing the beam on the inner surface sides of the upper and lower ends, respectively, and the insertion bar can be arranged in each of the upper and lower corresponding portions is provided. , The lower wall of the preceding wall is connected to the upper end, and the corresponding portion on the lower end of the wall is made to correspond to a beam construction space in which a continuous beam form is set up in a slab form of floor construction, Placing the insertion bar from the corresponding part on the lower end side in the beam building space, at the time of concrete placing of the floor, concrete is struck in the beam building space of the floor to integrate the lower end of the wall body and the beam, and the floor After forming, the slab formwork for the upper floor construction and the beam formwork continuous to this slab formwork are set up, and the corresponding portion on the upper end side of the wall body is made to correspond to the beam construction space of the upper floor. , The upper part of the beam from the corresponding part of the upper part of the upper floor floor beam construction And a mounting jig provided in the corresponding portion on the upper end side is supported by a steel frame or a reinforcing bar arranged in the beam construction space of the upper floor, and at the upper end of the wall body, on the upper floor. While connecting the corresponding upper-floor wall body, the lower-end corresponding portion of the upper-floor wall body is made to correspond to the beam construction space of the upper-floor floor, from the lower-end side corresponding portion of the upper-floor wall body. Placing an insertion line in the beam construction space of the upper floor, when concrete is placed on the upper floor, concrete is struck in the beam construction space of the upper floor so that the upper end of the wall body and the beam of the upper floor. And the lower end of the wall on the upper floor is completed, so as the concrete pouring process on each floor progresses to the upper floor, an outer wall is formed by continuing the prefabricated wall upwards. That means
The conventional formwork used to form the outer wall is no longer required as compared to the conventional construction method in which the outer wall was constructed on site. In addition, compared to the conventional method in which the beam is formed on the upper part of the existing wall for outer wall by field construction and integrated, the single-sided formwork that was supposed to be positioned on the outer surface side of the building in the conventional method This eliminates the need for external walls, and can significantly reduce formwork costs, formwork erection work, and labor costs for building outer walls. Furthermore, the labor-intensive wall formwork erection is not required and the construction period can be shortened. It is possible to achieve the effect of excellent practicability.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a wall body in an embodiment of an outer wall construction method according to the present invention, FIG. 2 is an explanatory view showing a connection between a lower end of the wall body and a beam construction space in one embodiment, FIG. 3 Is an explanatory view showing the connection between the upper end of the wall body and the beam construction space in one embodiment, FIG. 4 is an explanatory view showing the integration of the wall body and the beam, and FIG. 5 is a wall body in the second embodiment. FIG. 6 is an explanatory view showing the connection between the lower end of the beam and the beam construction space, and FIG. 6 is an explanatory view showing the integration of the wall body and the beam in the second embodiment. 1 ... Wall 2 ... Step (upper end of wall) 20,21 ...... Insert 3 ...... Step (lower end of wall) 30 ...... Insert 4 ...... Preceding wall 12 …… Surface (upper end of wall) 13 …… Surface (lower end of wall) 14 …… Anchor hardware 15 …… Reinforcing bar A, B …… Building space C …… Beam

Claims (1)

(57) [Claims] 1. A prefabricated wall body of a lower hierarchy, which is a ready-made wall body having corresponding portions facing the beam on the inner surface sides of the upper and lower ends, and insertion bars can be arranged at the upper and lower corresponding portions, respectively. And the corresponding portion on the lower end side of the wall body is made to correspond to the beam building space in which a continuous beam formwork is set up in the slab formwork for floor construction, Placing a bar in the beam construction space, when the floor concrete is cast, concrete is struck in the beam construction space of the floor to integrate the lower end of the wall body and the beam, and after the floor is formed, the upper floor A slab formwork for construction and a beam formwork continuous to this slab formwork are raised, and the corresponding part on the upper end side of the wall body is made to correspond to the beam building space of the upper floor, and the corresponding part on the upper end side is formed. Place the insertion line in the beam construction space on the upper floor, and A mounting jig provided at a corresponding portion on the end side is supported by a steel frame or a reinforcing bar arranged in the beam construction space of the upper floor, and the upper wall of the upper floor corresponding to the upper floor is attached to the upper end of the wall. And connecting the corresponding portion on the lower end side of the wall body of the upper floor to the beam construction space of the upper floor, and inserting the insertion line from the corresponding portion of the lower end side of the wall body of the upper floor on the upper floor. Placed in the beam construction space of the floor, at the time of concrete placing of the upper floor, concrete is struck in the beam construction space of the upper floor to obtain the upper end of the wall, the beam of the upper floor and the wall of the upper floor. An outer wall construction method characterized by integrating with the lower end.