JP7504159B2 - Structural slit member and wall structure construction method - Google Patents

Description

The present invention relates to a structural slit member that is placed along the side edge of a wall body of a structure such as a building, and a method for constructing a wall body adjacent to a column body using the structural slit member.

As disclosed in Patent Documents 1 and 2, it is known that structural slits are provided in reinforced concrete buildings to separate the edges between columns and beams and walls, and serve to prevent brittle fracture of the building in the event of an earthquake.

Structural slits were included as a method of earthquake-resistant design in the 1981 Building Standards Act's "New Earthquake Resistance Standards," and are widely used in apartment buildings, mainly made of reinforced concrete. With typical structural slits, it is difficult to maintain or fix the shape of the slits to a certain height (for example, about 1.0m-1.5m) against the lateral pressure of the concrete, so a construction method is used in which concrete is poured in sequence on both sides of the structural slit.

JP 2007-186925 A JP 2012-67495 A

However, if the structural slits are not installed properly or if construction management during concrete pouring is not carried out properly, the structural slits may become bent or misaligned, requiring correction after construction.

The present invention aims to provide a structural slit member that can reduce the burden of construction management during concrete pouring and prevent bending or misalignment of the structural slit, as well as a method for constructing a wall structure adjacent to a column structure using the structural slit member.

To achieve the above-mentioned objective, the structural slit member of the present invention is a structural slit member for arranging a structural slit along the side edge of a wall body of a structure, and is characterized by comprising a band-shaped structural slit arranged on the side edge of the wall body, a truss section formed in an elongated shape by a base plate and truss reinforcement on the inside side of the wall body along the structural slit, and a fixing means for connecting an intermediate support member passed through a through hole of the structural slit.

Here, the fixing means is a fixture arranged on an extension line of the through hole of the structural slit, and the fixture can be configured so that multiple fixtures are attached at intervals in the longitudinal direction of the truss section. Furthermore, the fixture can be configured to be attached across the upper end reinforcing bars and the lower end reinforcing bars of the truss bars. The base plate can also be configured to be a steel plate.

The invention of the method for constructing a wall structure is a method for constructing a wall structure adjacent to a column structure using any of the structural slit members described above, and is characterized by comprising the steps of: arranging the structural slit member at a position that is the boundary with the column structure; connecting an intermediate support member inserted from the column structure side to the fixing means; and continuously filling the inside of the formwork of the wall structure in which the truss section is arranged and reinforcement is arranged with concrete up to the height of the wall structure.

Another wall structure construction method invention is a method for constructing a wall structure adjacent to a column structure using any of the structural slit members described above, characterized by comprising the steps of: fabricating a column unit in which the structural slit member is attached to the reinforcement of the column structure; hoisting the column unit and positioning it so that the structural slit member is located at the side edge of the wall structure; connecting an intermediate support member inserted from the column structure side to the fixing means; and continuously filling the inside of the formwork of the wall structure with concrete up to the height of the wall structure.

The structural slit member of the present invention thus constructed comprises a truss section formed in an elongated shape by a base plate and truss bars arranged along the structural slit, and a fixing means for connecting an intermediate support member passed through a through hole in the structural slit.

In other words, the truss section added to increase the rigidity of the structural slits can be supported by intermediate supports connected to the fixing means from the outside of the wall structure, and can be integrated with the concrete of the wall structure that is filled in later via the truss reinforcement.

This allows the concrete to withstand large lateral pressure, and allows concrete to be poured high in one go, reducing the burden of construction management during concrete pouring. Furthermore, the structural slits are supported by the highly rigid truss section, preventing bending and shifting.

In particular, if multiple fasteners that serve as fixing means for the intermediate support are attached at intervals along the longitudinal direction of the truss section, the structural slits located on the side edges of the wall structure can be supported without bias in the vertical direction.

Furthermore, if the fixing device is configured to be attached across the upper and lower end bars of the truss bars, it is possible to prevent the fixing device from rotating around the upper end bar, etc., making it easier to connect the intermediate support members.

In addition, by making the base plate of the truss section out of a highly rigid steel plate, deformation of the structural slits that are superimposed on the steel plate is further suppressed, thereby improving the effectiveness of preventing bending and misalignment of the structural slits.

In addition, in the invention of the wall structure construction method, structural slit members are placed, and the intermediate support material inserted from the column structure side is connected to the fixing means, and then concrete is continuously filled up to the height of the wall structure.

In this way, by using structural slit members in which the highly rigid truss section is supported by intermediate supports, the height of the wall structure can be constructed with a single concrete pour, reducing the burden of construction management during concrete pouring.

Furthermore, if the column structure is reinforced by ground assembly and a column unit is produced with a structural slit member attached, workability will improve, allowing the column structure and wall structure to be constructed more efficiently.

1 is an explanatory diagram of the process of constructing a wall structure adjacent to a column structure using the structural slit member of this embodiment. FIG. 1 is an explanatory diagram showing the schematic configuration of the wall and column structures of a building in which structural slits are arranged. FIG. FIG. 2 is an enlarged perspective view illustrating the configuration of a structural slit member according to the present embodiment. FIG. 2 is a perspective view illustrating a configuration of a fixture. FIG. 13 is a perspective view illustrating the configuration of another fixing device. FIG. 2 is a perspective view illustrating the overall configuration of the structural slit member of the present embodiment. 13 is an oblique view illustrating the configuration of a column unit to which a structural slit member is attached. FIG. This is an explanatory diagram showing an enlarged view of the vicinity of the boundary with the column body. FIG. 11 is an explanatory diagram showing an example of the use of the structural slit member of this embodiment when constructing a wall structure on only one side of a column structure. FIG. 1 is an explanatory diagram illustrating a conventional concrete pouring sequence for columns and walls. FIG. 2 is an enlarged perspective view illustrating the configuration of the structural slit member according to the first embodiment. FIG. 11 is an enlarged perspective view illustrating the configuration of another structural slit member of the first embodiment.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
Fig. 1 is a diagram for explaining a process for constructing a column skeleton 11 and an adjacent wall skeleton 12 of a building 1, which is a structure, using a structural slit member 2 according to this embodiment. Fig. 2 is an explanatory diagram showing a schematic configuration of the wall skeleton 12 and column skeleton 11 of the building 1, in which a structural slit 3 is arranged.

In order to prevent brittle fracture, such as shear failure, of columns and beams in buildings 1 such as buildings and apartment buildings when a large earthquake occurs, structural slits are placed at the boundaries between columns and walls, as shown in Figure 2. The structural slits 3 shown in the figure are members that separate the edges between the column body 11 and the wall body 12, and are sometimes called vertical slits, vertical slits, earthquake-resistant slits, etc.

The structural slits 3 are arranged on the side edge 12a of the wall body 12, which forms the boundary with the column body 11. The wall body 12 is a body called a miscellaneous wall, such as a sleeve wall, waist wall, or hanging wall, which is different from the main structural members. On the other hand, the structural slits arranged for the purpose of cutting the edge between the beam body 13 and the wall body 12 are called horizontal slits 15 (see Figure 2).

As shown in Figures 3 and 6, the structural slit member 2 of this embodiment includes a band-shaped structural slit 3, a truss section 4 formed in an elongated shape along the structural slit 3, and a fastener 6 that serves as a fixing means attached to the truss section 4.

The structural slit 3 is a rectangular plate-shaped member made of a material such as polystyrene foam, urethane foam, polystyrene foam, or phenol foam. The structural slit 3 is formed in a long shape with a length approximately equal to the height of the wall structure 12.

As shown in Figure 8, the width of the structural slit 3 is narrower than the wall thickness of the wall structure 12 (approximately 150mm-230mm), and a frame material 32 is attached to each of the two edge portions in the wall thickness direction of the wall structure 12. The frame material 32 has grooves on both sides, and one groove fits the edge of the structural slit 3, while the other groove fits a rectangular joint rod 33 fixed to the wall formwork 72.

As shown in FIG. 8, a partition formed by the structural slit 3, frame material 32, and joint rod 33 described above is placed at the boundary between a pair of wall forms 72, 72 and the column structure 11, and the flow of concrete filled to construct the wall structure 12 and the column structure 11 is blocked by this partition.

The truss section 4 is formed in an elongated shape on the inside side of the wall structure 12 along the longitudinal direction (vertical direction) of the structural slit 3. In this embodiment, the truss section 4 is formed by a base plate 41 and truss reinforcement 42, as shown in FIG. 3.

The base plate 41 is a strip-shaped member that is attached to one side of the structural slit 3, and is made of a deck plate, corrugated sheet, or the like. The width and length of the base plate 41 are approximately the same as those of the structural slit 3, and by joining the base plate 41 to one side of the structural slit 3 with adhesive, screws, double-sided tape, or the like, the truss section 4 and the structural slit 3 can be treated as a single unit.

On the other hand, the truss reinforcement 42 is formed in the shape of an isosceles triangle in plan view by the upper end reinforcement 421, the lower end reinforcement 422, and the wavy lattice reinforcement 423 that connects them (see Figure 8). There are various types of truss reinforcement 42, and while the upper end reinforcement 421 is placed near the apex of the isosceles triangle, various positions of the lower end reinforcement 422 and shapes of the lattice reinforcement 423 can be used.

In short, the truss section 4 may be formed as a highly rigid, long member by a base plate 41 and truss bars 42, the base of which is an isosceles triangle in plan view (see FIG. 8) joined to one surface of the base plate 41. For example, a truss section 4 made of a base plate 41 formed from a thin galvanized steel plate and truss bars 42 formed by combining thin reinforcing bars (421, 422, 423) is highly rigid and lightweight, making it easy to handle.

As shown in FIG. 8, one wall surface of the wall structure 12 is the first wall surface 121, and the other wall surface opposite it is the second wall surface 122. The truss section 4 is disposed inside the wall structure 12 between the first wall surface 121 and the second wall surface 122. The truss section 4 and the wall structure 12 are integrated by filling the area around the truss reinforcement 42 with concrete poured on-site to form the wall structure 12.

As shown in FIG. 3, a fixing device 6 that serves as a fixing means for the intermediate support material 61 is attached to the truss section 4. At the positions of the structural slit 3 and the base plate 41 that face this fixing device 6, a through hole 31 is drilled as shown in FIG. 6. In other words, the fixing device 6 for the intermediate support material 61 is positioned on the extension line of the through hole 31 of the structural slit 3 and the base plate 41.

Figure 4 is a perspective view illustrating an example of the configuration of the fixing device 6. This fixing device 6 has two clamping parts 62 for passing the upper end reinforcing bars 421 and the lower end reinforcing bars 422 of the truss reinforcing bars 42 through. As shown in Figure 3, the upper end reinforcing bars 421 and the lower end reinforcing bars 422 are passed through the inner space of the clamping parts 62, which are U-shaped in plan view.

On the open side of the clamping portion 62, a stopper 621 is formed from a resin material such as rubber to allow the upper end reinforcing bar 421 and the lower end reinforcing bar 422 to be fitted in and to prevent them from coming loose or shifting.

A hanging piece 63 projects from each of the two clamping parts 62, and an intermediate support material 61 is inserted into the space between the arch ceiling formed by the hanging pieces 63 and the fixing screw 64 that is installed below it.

The fixing screw 64 has one end fixed to the clamping portion 62 and the other end protruding from the hanging piece 63, and the inserted intermediate support material 61 can be fixed by tightening the nut 641 screwed into the protruding end of the fixing screw 64.

As shown in FIG. 3, the fixing device 6 is attached across the upper end reinforcement 421 and the lower end reinforcement 422 of the truss reinforcement 42, so that it can be prevented from rotating around the upper end reinforcement 421 or the lower end reinforcement 422. In addition, the intermediate support material 61 that is passed through the two hanging pieces 63 is extended horizontally toward the inside of the wall structure 12.

The fixing device 6, which serves as the fixing means, is not limited to the form shown in FIG. 4, and FIG. 5 shows the configuration of another fixing device 6A. The fixing device 6A shown in FIG. 5 has the same clamping portion 62 and stopper 621 as the fixing device 6 in FIG. 4, but the way in which the intermediate support material 61 is connected is different.

A protruding piece 65 protrudes from each of the two clamping parts 62 of the fixing device 6A so as to be parallel to the base plate 41, and the intermediate support material 61 is inserted into the hole of the protruding piece 65. A fixing nut 66 is placed in the position of the hole of the protruding piece 65, and the inserted intermediate support material 61 can be fixed by tightening the fixing nut 66. The intermediate support material 61 supported by the two protruding pieces 65 protrudes horizontally toward the inside of the wall structure 12.

As can be seen from the position of the intermediate support member 61 shown in FIG. 6, multiple fasteners 6 are attached at intervals along the longitudinal direction of the truss section 4. For example, the fasteners 6 are attached to the truss section 4 at intervals of about 200 mm to 400 mm in the vertical direction.

The end of the intermediate support material 61 inserted from the column body 11 side is connected to the fixing device 6, and the structural slit member 2 can be supported by this intermediate support material 61. The intermediate support material 61 can be formed from a rod-shaped material such as a reinforcing bar, a separator, or a full screw. In addition, the intermediate support material 61 is not limited to being formed from a single rod-shaped material, and may be formed by combining multiple rod-shaped materials, such as having a joint in the middle.

The spacing of the fasteners 6 at the bottom of the structural slit member 2, where the lateral pressure of the concrete is greater, is preferably closer than at the top. For example, Figure 6 shows an example in which the spacing at the bottom of the structural slit member 2 is 200 mm, and the spacing from the middle to the top is 400 mm.

The structural slit member 2 of this embodiment is connected to the column body 11 by an intermediate support member 61 that passes through the fixing device 6. In conventional earthquake-resistant structures with structural slits, it was necessary to place anti-sway bars to prevent the wall that is separated from the column from collapsing, but by using the structural slit member 2 of this embodiment, in which the wall body 12 is connected to the column body 11 via the intermediate support member 61, the intermediate support member 61 can function as an anti-sway bar.

Next, a method for constructing a wall structure 12 adjacent to a column structure 11 using the structural slit member 2 of this embodiment will be described. In this embodiment, as shown in Figure 1 or Figure 9, a case in which a wall structure 12 is constructed adjacent to a column structure 11 will be described.

The column reinforcement 111 of the column body 11 is made up of tie bars that act as shear reinforcement bars and surround the outside of the main bars that extend vertically. In addition, intermediate tie bars that act as shear reinforcement bars are placed across the tie bars, which are roughly rectangular in plan view, to separate the internal space (see Figures 1 and 7).

Before the structural slit member 2 is installed in a predetermined position, the wall formwork 72 that forms one wall surface of the wall structure 12 is assembled. For example, the upper wall formwork 72 that is connected to the column formwork 71 shown in Figure 1 is installed first. The formwork (71, 72) is made up of shoring 7, which is assembled using single pipes and battens, sheathing, separators 52, etc.

Then, column reinforcement 111 is assembled inside the column formwork 71, and wall reinforcement 123 is assembled inside the wall formwork 72. In addition, structural slit members 2 are installed on both side edges of the wall reinforcement 123.

Here, there are two ways to arrange the structural slit members 2. The first method is to first arrange the structural slit members 2 at the boundary with the column body 11, and then assemble the wall reinforcement 123.

The second method is to assemble the column unit 20 as shown in Figure 7 by ground assembly. For example, the column reinforcement 111 is assembled in a work yard. With ground assembly, which can be carried out in a large space such as a work yard, the column reinforcement 111 can be assembled efficiently.

Then, the structural slit members 2 are attached to the boundary between the ground-assembled column reinforcement 111 and the wall structure 12. The column unit 20 (structural slit member 2 in the case of the first method described above) produced in this way is lifted by a hoist or crane and installed in a specified position. The structural slit member 2, whose rigidity has been increased by the truss section 4, is lightweight and therefore increases in weight only slightly when attached to the column reinforcement 111, and it can be lifted by a crane or the like and installed as the column unit 20 together with the column reinforcement 111.

The wall reinforcement 123 is placed on the floor surface formed on the beam structure 13 of the lower floor through a horizontal slit 15. In other words, the wall structure 12 and the floor surface are separated by the horizontal slit 15 (see Figure 2).

For the structural slit member 2 arranged at the boundary with the column structure 11, as shown in Figure 1, one end of the intermediate support member 61 protruding from the column reinforcement 111 side through the through hole 31 (see Figure 6) to the wall structure 12 side is connected to the fixing device 6.

In the building 1 shown in FIG. 1, the other end of the intermediate support member 61 is also connected to the fixing device 6 of the structural slit member 2 for the wall structure 12 constructed on the opposite side of the column structure 11. In short, the intermediate support member 61 maintains the distance between the structural slit members 2, 2 on both sides of the column structure 11.

On the other hand, in the building 1A shown in Figure 9, the wall structure 12 is provided in only one direction relative to the column structure 11, so the other end of the intermediate support material 61, one end of which is connected to the fixing device 6, is fixed to the shoring 7 that supports the column formwork 71.

After assembling the column reinforcement 111 and wall reinforcement 123 in this manner, the remaining column formwork 71 and wall formwork 72 are installed. At this point, the wall formwork 72, 72 are connected by separators 52, as shown in Figures 1 and 9. In this way, the structure is prepared for filling with cast-in-place concrete.

Now, with reference to Figure 10, we will explain the order in which concrete is poured into the columns, walls, and beams of a conventional building a1. In this building a1, structural slits a2 are placed between the columns and the walls on either side.

First, pour the concrete into the bottom of the column. Since concrete is fluid when filled, a lateral pressure according to the pouring height acts on the structural slit a2, as shown in the partial image in the center of the wall on the left side of Figure 10.

The structural slit a2 itself is a low-rigidity plate material made from polystyrene foam or similar, so if a large lateral pressure from the concrete is applied, it may bend or shift. Therefore, first pour concrete to about 1/3 of the height of the column.

Next, concrete is filled into the lower parts of the walls on the left and right of the pillar to the same height. Then, concrete is poured into the middle parts of the pillar and the walls on the left and right, and then concrete is poured into the upper parts of the pillar and the walls on the left and right. Finally, concrete is poured into the beams, and the concrete pouring process involves 10 steps.

In contrast, the structural slit member 2 of this embodiment has a highly rigid truss section 4, and the truss section 4 is supported by an intermediate support member 61 connected from the column body 11 side.

The intermediate support members 61 are inserted into the through holes 31 shown in FIG. 6, and are placed not only at the vertical ends of the truss section 4 but also in the middle, so that the structural slit member 2 can be supported evenly over its entire length.

As a result, as shown in Figure 2, concrete can be poured continuously into the column structure 11 at one time up to a depth of about 2.5 m. Concrete can also be poured continuously into the wall structures 12 on the left and right sides of the column structure 11 up to the height of the wall structures 12.

Finally, the concrete for the beam structure 13 is poured, but the concrete pouring process can be completed in just four steps. In short, six steps can be eliminated compared to the conventional concrete pouring process.

Next, we will explain the function of the structural slit member 2 of this embodiment and the method of constructing a wall structure 12 adjacent to a column structure 11 using the structural slit member 2.

The structural slit member 2 of this embodiment configured in this manner includes a truss section 4 formed in an elongated shape by a base plate 41 and truss bars 42 arranged along the structural slit 3, and a fixing device 6 for an intermediate support material 61 arranged on the extension line of the through hole 31 of the structural slit 3.

In other words, the truss section 4 added to the structural slit 3 to increase rigidity can be supported by intermediate supports 61 connected to the fixings 6 from the outside of the wall structure 12, and can be integrated with the concrete of the wall structure 12 that is filled later via the truss reinforcement 42.

If the concrete can withstand the large lateral pressure, it will be possible to continuously pour concrete to a height of more than 1.5m at a time, which will reduce the burden of construction management during concrete pouring.

Furthermore, because the structural slits 3 are supported by the highly rigid truss section 4, bending or misalignment can be prevented. In particular, if multiple fixing devices 6 for the intermediate support material 61 are attached at intervals along the longitudinal direction of the truss section 4, the structural slits 3 arranged on the side edge 12a of the wall structure 12 can be supported without bias in the height direction.

In addition, if the fixing device 6 is configured to be attached across the upper end reinforcement 421 and the lower end reinforcement 422 of the truss reinforcement 42, the fixing device 6 can be prevented from rotating around the upper end reinforcement 421, etc., making it easier to connect the intermediate support material 61.

In addition, in the method for constructing the wall structure of this embodiment, a lightweight and easy-to-handle structural slit member 2 is placed, the end of the intermediate support member 61 inserted from the column structure 11 side is connected to the fixing device 6, and then concrete is continuously filled up to the height of the wall structure 12.

In this way, by using a structural slit member 2 in which a lightweight and highly rigid truss section 4 is supported by an intermediate support member 61, the height of the wall structure 12 can be constructed with a single concrete pour, thereby reducing the burden of construction management during concrete pouring.

Furthermore, if the column structure 11 is reinforced by ground assembly or the like to produce a column unit 20 to which the structural slit member 2 is attached, workability is improved compared to working in a narrow space with formwork close together, and the column structure 11 and wall structure 12 can be constructed more efficiently.

Below, structural slit members 2A and 2B of an embodiment different from the structural slit member 2 of the embodiment described above will be described with reference to Figures 11 and 12. Note that the same terms or the same reference numerals will be used to describe the same or equivalent parts as those described in the embodiment described above.

Figure 11 is an enlarged perspective view explaining the configuration of the structural slit member 2A of Example 1. The first structural slit member 2A of Example 1 comprises a band-shaped structural slit 3, a truss section 4A formed in an elongated shape along the structural slit 3, and a fastener 6 attached to the truss section 4A. Here, the fastener 6 serving as the fixing means for the intermediate support member 61 may be the fastener 6A (see Figure 5) described in the above embodiment.

The truss section 4A of the structural slit member 2A is formed by a steel plate 43 that serves as the base and truss bars 42. The steel plate 43 is a strip-shaped steel material that is in close contact with one side of the structural slit 3, and its rigidity can be adjusted according to its thickness.

The steel plate 43 has a width and length approximately equal to that of the structural slit 3, and frame materials 32 are fitted into both edge portions of the overlapping structural slit 3 and steel plate 43. The structural slit 3 and steel plate 43 can also be joined with adhesive, screws, double-sided tape, etc. Then, truss reinforcement 42 is joined to the surface of the steel plate 43 exposed on the wall structure 12 side.

On the other hand, Figure 12 is an enlarged perspective view explaining the configuration of another structural slit member 2B of Example 1. The second structural slit member 2B of Example 1 comprises a band-shaped structural slit 3, a truss section 4B formed in an elongated shape along the structural slit 3, and a fastener 6A attached to the truss section 4B. Here, the fastener 6A, which serves as a fixing means for the intermediate support member 61, may be the fastener 6 (see Figure 4) described in the above embodiment.

The truss section 4B of the structural slit member 2B is formed by a steel plate 44 that serves as the base and truss bars 42. The steel plate 44 is a strip-shaped steel material that is attached to one side of the structural slit 3, and its rigidity can be adjusted according to its thickness.

The steel plate 44 is approximately the same length as the structural slit 3, but is narrower than the structural slit 3, and is formed to a width that fits between the frame materials 32, 32 fitted into both end edges of the structural slit 3.

By joining the steel plate 44 that is to be overlapped on one side of the structural slit 3 with adhesive, screws, double-sided tape, etc., the truss section 4B and the structural slit 3 can be treated as a single unit. The truss reinforcement 42 is then joined to the surface of the steel plate 44 exposed on the wall structure 12 side.

The structural slit members 2A and 2B of Example 1 configured in this manner have the base plate of the truss section 4 made of highly rigid steel plates 43 and 44, which further suppresses deformation of the structural slits 3 superimposed on the steel plates 43 and 44, thereby improving the effectiveness of preventing bending and misalignment of the structural slits 3.

The rest of the configuration and effects are similar to those of the previous embodiment, so a detailed description will be omitted.

The above describes the embodiment and examples of the present invention in detail with reference to the drawings, but the specific configuration is not limited to this embodiment or example, and design changes that do not deviate from the gist of the present invention are included in the present invention.

For example, the materials and shapes of the structural slit 3 and frame material 32 described in the above embodiment are merely examples and are not limited thereto, and the present invention can be applied to structural slits of various shapes.

In addition, in the above embodiment and Example 1, the fixing devices 6 and 6A are exemplified as fixing means, but this is not limited thereto, and various types of fixing devices can be attached to the truss sections 4, 4A, and 4B as long as they can connect the intermediate support member 61.

Furthermore, in the above embodiment and Example 1, the fasteners 6, 6A are used as a means for fixing the intermediate support material 61, but this is not limited thereto, and the fixing means may be such that the intermediate support material 61 is passed through the through holes 31 in the base plate 41 or the steel plates 43, 44 and then joined by welding.

1, 1A: Buildings (structures)
11: Column body 111: Column reinforcement 12: Wall body 12a: Side edge 2, 2A, 2B: Structural slit member 20: Column unit 3: Structural slit 31: Through hole 4, 4A, 4B: Truss section 41: Base plate 42: Truss reinforcement 421: Upper end reinforcement 422: Lower end reinforcement 43, 44: Steel plate (base plate)
6, 6A: Fixing device (fixing means)
61: Intermediate support material 72: Wall formwork (formwork)

Claims (6)

A structural slit member for arranging a structural slit along a side edge of a wall body of a structure,
A band-shaped structural slit arranged on a side edge of the wall body;
A truss section formed in an elongated shape by a base plate and a truss bar on the inner side of the wall body along the structural slit;
A structural slit member comprising: a fixing means for connecting an intermediate support member passed through a through hole of the structural slit. The structural slit member according to claim 1, characterized in that the fixing means is a fixture arranged on an extension line of the through hole of the structural slit, and a plurality of the fixtures are attached at intervals in the longitudinal direction of the truss section. The structural slit member according to claim 2, characterized in that the fixing device is attached across the upper and lower end bars of the truss bars. The structural slit member according to any one of claims 1 to 3, characterized in that the substrate is a steel plate. A method for constructing a wall structure adjacent to a column structure using the structural slit member according to any one of claims 1 to 3, comprising the steps of:
A step of arranging the structural slit member at a position that is a boundary with the column body;
A step of connecting an intermediate support member inserted from the column body side to the fixing means;
and continuously filling the inside of the formwork of the wall structure in which the truss sections are arranged and reinforcement is applied with concrete up to the height of the wall structure. A method for constructing a wall structure adjacent to a column structure using the structural slit member according to any one of claims 1 to 3, comprising the steps of:
A step of manufacturing a column unit in which the structural slit member is attached to the reinforcement of the column body;
A step of lifting the column unit and arranging the structural slit member so as to be positioned at the side edge of the wall body;
A step of connecting an intermediate support member inserted from the column body side to the fixing means;
and continuously filling the inside of the formwork of the wall structure with concrete up to the height of the wall structure.