JP7583591B2 - How to install furring strips - Google Patents

Description

This invention relates to a method for attaching horizontal furring strips to the upper surface of the rising part rising from the floor slab.

Patent Document 1 discloses a method of attaching furring strips in which horizontal furring strips (14) are supported by a pair of adjacent columns (12) in an appropriate position. In such a furring strip attachment method, a method may be used in which the lowest horizontal furring strip is attached in a state where it is fixed to the upper surface of the rising part rising from the floor slab. To explain further, a method may be used in which concrete is poured into the construction space in which the rising part is to be constructed, the horizontal furring strips are supported by a pair of adjacent columns in an appropriate position and the horizontal furring strips are joined to angles driven into the rising part, and the horizontal furring strips are fixed to the upper surface of the rising part rising from the floor slab.

Japanese Patent Application Publication No. 07-310381

However, this method of installing furring strips required the construction of the rising section before the horizontal furring strips were supported by a pair of columns, which tended to cause delays in construction.

In light of this situation, the main objective of the present invention is to provide a method for installing furring strips that is less likely to cause delays in construction work.

The first characteristic configuration of the present invention is a furring strip installation method for fixing a horizontal furring strip to an upper surface of a rising portion rising from a floor slab,
The method includes a pre-attachment adjustment process in which the horizontal furring strip is adjusted to a proper posture and supported by a pair of adjacent pillars, and a horizontal furring strip fixing process in which the horizontal furring strip is fixed to the upper surface of the rising portion after the pre-attachment adjustment process.In the pre-attachment adjustment process, the horizontal furring strip is supported by the pair of pillars with an anchor bolt , which serves as a fixing device with its upper end fixed to the horizontal furring strip, protruding so that its lower end floats in the construction space in which the rising portion is constructed, and in the horizontal furring strip fixing process, concrete is poured into the construction space to bury the anchor bolt , thereby constructing the rising portion, and thereby fixing the horizontal furring strip to the rising portion in the proper posture.

According to this configuration, in the pre-attachment adjustment process, the horizontal furring strip is supported in the correct position by a pair of columns, and the fixing device fixed to the horizontal furring strip is protruded into the construction space. In this state, the horizontal furring strip fixing process is performed and concrete is poured into the construction space, thereby constructing the rising portion and embedding the fixing device in the constructed rising portion, thereby fixing the horizontal furring strip in the correct position to the upper surface of the rising portion.
Furthermore, by carrying out the pre-attachment adjustment process before the horizontal furring strip fixing process in this manner, the horizontal furring strip can be supported in the correct position on a pair of pillars before concrete is poured into the construction space to construct the rising section, so that work can be done to attach vertical furring strips or another horizontal furring strip to the top of the horizontal furring strip, making it less likely that delays will occur in the construction schedule.

The second characteristic feature of the present invention is that the first joint that joins the horizontal furring strip to the column is provided with a long hole that is long in the adjustment direction, with the adjustment direction being perpendicular to the direction in which the horizontal furring strip extends in a plan view, for bolting the horizontal furring strip to the column in an adjustable manner in the adjustment direction, and the second joint that joins the horizontal furring strip to the fixing device is provided with a round hole that is long in the adjustment direction, with the fixing device being non-adjustable in the adjustment direction, to the horizontal furring strip.

According to this configuration, by joining the horizontal furring strips to each of the pair of columns using the long holes, the position of the horizontal furring strip in the adjustment direction relative to each of the pair of columns can be adjusted, so that the horizontal furring strip can be supported by the pair of columns in an adjusted position. In addition, by joining the horizontal furring strips to the fixing device using round holes, the fixing device can be bolted to the horizontal furring strip with high joining strength.

The third characteristic feature of the present invention is that the interior side portion of the rising portion has a protruding step that protrudes above the bottom surface of the horizontal furring strip.

With this configuration, the protruding step of the rising section can function as a water return, preventing rainwater and other water from entering the room through the rising section.

The fourth characteristic feature of the present invention is that a plurality of vertical furring strips are assembled to the horizontal furring strip so as to extend upward from the horizontal furring strip, forming the lowest furring strip unit.

According to this configuration, the horizontal furring strips and multiple vertical furring strips can be unitized into the lowest furring strip unit by ground assembly, thereby reducing the labor required for erecting the steel frame.
A fifth characteristic feature of the present invention is that the anchor bolt is embedded in the rising portion and in the floor slab below the rising portion.

Front view of furring strip mounting structure Front view showing the joint between the horizontal furring strip and the column A side view showing the joint between the horizontal furring strip and the column Plan view showing the joints between the horizontal furring strips and the columns A front view showing the joint between the horizontal and vertical furring strips A side view showing the joint between the horizontal and vertical furring strips Front view of the furring strip mounting structure before performing the horizontal furring strip fixing process Front view of furring strip unit

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.
1 shows a furring strip mounting structure in which a horizontal furring strip 3 is fixed to the upper surface of a rising portion 2 rising from a floor slab 1. The horizontal furring strip 3 is supported by a pair of adjacent columns 4 in a state where it is adjusted to an appropriate position, and is fixed to the upper surface of the rising portion 2. A plurality of vertical furring strips 5 are joined to the horizontal furring strip 3.

The furring strip mounting structure will be described below. The direction in which the horizontal furring strips 3 extend is defined as the width direction Y, with one side of the width direction Y defined as the left side Y1 and the opposite side of the left side Y1 defined as the right side Y2. The direction perpendicular to the width direction Y in a plan view (the out-of-plane direction in which the pillars 4 and horizontal furring strips 3 are aligned) is defined as the adjustment direction X, with one side of the adjustment direction X (the side where the horizontal furring strips 3 exist relative to the pillars 4) defined as the outside X1 and the opposite side (the side where the pillars 4 exist relative to the horizontal furring strips 3) defined as the inside X2 (the room side).

3 and 6, the rising portion 2 is constructed so as to rise from the end of the outer side X1 of the floor slab 1 toward the upper side Z1. Also, as shown in FIG. 6, the inner side X2 part of the rising portion 2 has a protruding step 2A that protrudes to the upper side Z1 from the bottom surface of the horizontal furring strip 3. The protruding step 2A is at the end of the inner side X2 of the rising portion 2 and is located on the inner side X2 of the horizontal furring strip 3. In other words, the horizontal furring strip 3 is fixed to the upper surface of the part of the rising portion 2 that is outer X1 than the protruding step 2A. In this embodiment, the rising portion 2 is not constructed in the range where the first joint member 6 exists in the width direction Y. Then, when constructing the rising portion 2 by installing the formwork F as shown by the virtual line in FIG. 6, by pouring concrete from above into the space where the highest protruding step 2A is formed, it becomes easier to properly fill the entire rising portion 2 with concrete. In addition, by forming a protruding step 2A on the inner end of the rising portion 2 in this way to properly fill the rising portion 2 with concrete, this protruding step 2A can also be used as a water return.

As shown in Fig. 1 and Fig. 7, the horizontal furring strip 3 is supported by a pair of adjacent columns 4 in an adjusted position. The left end Y1 of the horizontal furring strip 3 is joined to the left column 4 Y1 of the pair of columns 4 using the first joining member 6. The right end Y2 of the horizontal furring strip 3 is joined to the right column 4 Y2 of the pair of columns 4 using the first joining member 6. In addition, the vertical furring strip 5 is joined to the end of the horizontal furring strip 3 in the width direction Y using the first joining member 6, and the vertical furring strip 5 is joined to the middle part of the horizontal furring strip 3 in the width direction Y using the second joining member 7. As shown in Fig. 3, the horizontal furring strip 3 is made of lip groove steel and is fixed to the upper surface of the rising part 2 with the lip part facing the upper side Z1. Note that Fig. 1 shows the state after the floor slab 1 and the rising part 2 are constructed, and Fig. 7 shows the state before the floor slab 1 and the rising part 2 are constructed.

As shown in FIG. 4, each end of the horizontal furring strip 3 in the width direction Y is formed with a first horizontal joint round hole 11 for bolting to the first joint member 6, and as shown in FIG. 2, each end of the horizontal furring strip 3 in the width direction Y is bolted to the first joint member 6. Also, as shown in FIG. 1 and FIG. 7, a plurality of second joint members 7 are welded to the middle part of the horizontal furring strip 3 in the width direction Y, spaced apart in the width direction Y. Also, a plurality of fixing tool round holes 12 (see FIG. 6) for bolting the fixing tool 8 are formed in the middle part of the horizontal furring strip 3 in the width direction Y, spaced apart in the width direction Y. The fixing tool round holes 12 are formed at positions offset in the width direction Y from the second joint member 7. Note that in FIG. 4, the first bolt 36 is omitted from the illustration in order to make the holes for bolting easier to see.

As shown in FIG. 2, the vertical furring strip 5 is composed of two frame members 9 aligned in the vertical direction Z, arranged in the width direction Y. The two frame members 9 are made of lip channel steel, and are installed so that their lip portions face opposite each other. As shown in FIG. 1, the vertical furring strip 5 includes a first vertical furring strip 5A joined to a first joining member 6, and a second vertical furring strip 5B joined to a second joining member 7. The first vertical furring strip 5A is joined to the end of the horizontal furring strip 3 in the width direction Y and to the column 4 using the first joining member 6. The second vertical furring strip 5B is joined to the middle part of the horizontal furring strip 3 in the width direction Y using the second joining member 7.

2 and 3, the lower end of the first vertical furring strip 5A is formed with a first vertical joint round hole 13 for bolting to the first joint member 6. As shown in FIGS. 5 and 6, the lower end of the second vertical furring strip 5B is formed with a second vertical joint round hole 14 for bolting to the second joint member 7. In this embodiment, the first vertical joint round hole 13 and the second vertical joint round hole 14 are formed with the same size and at the same position on the vertical furring strip 5. In other words, the first vertical furring strip 5A and the second vertical furring strip 5B use the same vertical furring strip 5, but are installed at different positions. In order to make the holes for bolting easier to see, the third bolt 38 is omitted in FIG. 3, and the fourth bolt 39 is omitted in FIG. 6.

As shown in Figures 2 to 4, the first joint member 6 includes a left horizontal furring strip joint 16 to which the end of the left side Y1 of the horizontal furring strip 3 is joined, a right horizontal furring strip joint 17 to which the end of the right side Y2 of the horizontal furring strip 3 is joined, a vertical furring strip joint 18 to which the end of the lower side Z2 of the vertical furring strip 5 (first vertical furring strip 5A) is joined, and a column joint 19 to which the surface of the column 4 facing the outside X1 is joined.

To explain further, the first joining member 6 comprises a first plate-shaped portion 21 oriented along the adjustment direction X and width direction Y, a second plate-shaped portion 22 located on the upper side Z1 of the first plate-shaped portion 21 and oriented along the adjustment direction X and vertical direction Z, and a third plate-shaped portion 23 located on the lower side Z2 of the first plate-shaped portion 21 and oriented along the width direction Y and vertical direction Z. The second plate-shaped portion 22 is provided so as to extend from the center of the first plate-shaped portion 21 in the width direction Y toward the upper side Z1. The third plate-shaped portion 23 is provided so as to extend from the end of the inner side X2 of the first plate-shaped portion 21 toward the lower side Z2.

As shown in FIG. 4, a long hole 26 for the left horizontal furring strip that is long in the adjustment direction X is formed in the part of the first plate-shaped portion 21 to the right Y2 of the second plate-shaped portion 22 for bolting to the end of the left side Y1 of the horizontal furring strip 3 so that the position can be adjusted in the adjustment direction X. The right side Y2 part of this first plate-shaped portion 21 constitutes the left horizontal furring strip joint 16. A long hole 27 for the right horizontal furring strip that is long in the adjustment direction X is formed in the part of the first plate-shaped portion 21 to the left Y1 of the second plate-shaped portion 22 for bolting to the end of the right side Y2 of the horizontal furring strip 3 so that the position can be adjusted in the adjustment direction X. The left side Y1 part of this first plate-shaped portion 21 constitutes the right horizontal furring strip joint 17.

As shown in FIG. 3, the second plate-shaped portion 22 has a vertical furring strip long hole 28 that is long in the vertical direction Z for bolting to the end of the lower side Z2 of the vertical furring strip 5 (first vertical furring strip 5A) so that the position can be adjusted in the vertical direction Z. This second plate-shaped portion 22 constitutes the vertical furring strip joint 18. In addition, the inner X2 end of the first plate-shaped portion 21, the inner X2 end of the second plate-shaped portion 22, and the third plate-shaped portion 23 are welded to the column 4. The inner X2 end of the first plate-shaped portion 21, the inner X2 end of the second plate-shaped portion 22, and the third plate-shaped portion 23 constitute the column joint 19.

As shown in Figures 5 and 6, the second joining member 7 has a horizontal furring strip intermediate joining portion 31 that joins to the middle portion of the horizontal furring strip 3 in the width direction Y, and a second vertical furring strip joining portion 32 that joins to the end portion of the lower side Z2 of the vertical furring strip 5.

To explain further, the second joining member 7 includes a fourth plate-shaped portion 33 oriented along the adjustment direction X and the width direction Y, and a fifth plate-shaped portion 34 positioned on the upper side Z1 of the fourth plate-shaped portion 33 and oriented along the adjustment direction X and the up-down direction Z. The fifth plate-shaped portion 34 is arranged to extend from an end portion on one side of the fourth plate-shaped portion 33 in the width direction Y (the right side Y2 in this embodiment) toward the upper side Z1.

The fourth plate-shaped portion 33 is welded to the middle of the horizontal furring strip 3 in the width direction Y. This fourth plate-shaped portion 33 constitutes the horizontal furring strip middle joint 31. The fifth plate-shaped portion 34 is formed with a vertical furring strip round hole 35 for bolting to the end of the lower side Z2 of the vertical furring strip 5 (second vertical furring strip 5B). This fifth plate-shaped portion 34 constitutes the second vertical furring strip joint 32.

As shown in Figures 2 to 4, the end of the left side Y1 of the horizontal furring strip 3 and the first joining member 6 are bolted together with the first bolt 36 inserted through both the first horizontal joining round hole 11 of the horizontal furring strip 3 and the left horizontal furring strip long hole 26 of the first joining member 6. Although the position of the first bolt 36 in the first horizontal joining round hole 11 cannot be adjusted in the adjustment direction X, the position of the first bolt 36 in the left horizontal furring strip long hole 26 can be adjusted in the adjustment direction X. Therefore, when joining the end of the left side Y1 of the horizontal furring strip 3 and the first joining member 6, the position of the end of the left side Y1 of the horizontal furring strip 3 relative to the first joining member 6 can be adjusted in the adjustment direction X by adjusting the position of the first bolt 36 in the left horizontal furring strip long hole 26 in the adjustment direction X.

The end of the right side Y2 of the horizontal furring strip 3 and the first joining member 6 are bolted together with the second bolt 37 inserted through both the first horizontal joining round hole 11 of the horizontal furring strip 3 and the horizontal furring strip right long hole 27 of the first joining member 6. Although the position of the second bolt 37 in the first horizontal joining round hole 11 cannot be adjusted in the adjustment direction X, the position of the second bolt 37 in the horizontal furring strip right long hole 27 can be adjusted in the adjustment direction X. Therefore, when joining the end of the right side Y2 of the horizontal furring strip 3 and the first joining member 6, by adjusting the position of the second bolt 37 in the horizontal furring strip right long hole 27 in the adjustment direction X, the position of the end of the right side Y2 of the horizontal furring strip 3 relative to the first joining member 6 can be adjusted in the adjustment direction X.

In this way, the first joint 41 that joins the horizontal furring strip 3 to the column 4 is provided with long holes (long hole 26 for left horizontal furring strip and long hole 27 for right horizontal furring strip) in the adjustment direction X for bolting the horizontal furring strip 3 to the column 4 in an adjustable manner in the adjustment direction X. The first joint 41 is composed of the end of the horizontal furring strip 3 in the width direction Y and the joint 16 for left horizontal furring strip and the joint 17 for right horizontal furring strip of the first joint member 6.

2 and 3, the end of the lower side Z2 of the first vertical furring strip 5A and the first joining member 6 are bolted together with the third bolt 38 inserted through both the first vertical joining round hole 13 of the first vertical furring strip 5A and the vertical furring strip long hole 28 of the first joining member 6. Although the position of the third bolt 38 in the first vertical joining round hole 13 cannot be adjusted in the vertical direction Z, the position of the third bolt 38 in the vertical furring strip long hole 28 can be adjusted in the vertical direction Z. Therefore, when joining the end of the lower side Z2 of the first vertical furring strip 5A and the first joining member 6, the position of the end of the lower side Z2 of the first vertical furring strip 5A relative to the first joining member 6 can be adjusted in the vertical direction Z by adjusting the position of the third bolt 38 in the vertical furring strip long hole 28 in the vertical direction Z.

In this way, the third joint 43 that joins the vertical furring strip 5 to the column 4 is provided with a vertical furring strip long hole 28 that is long in the vertical direction Z for bolting the vertical furring strip 5 to the column 4 so that it can be adjusted in the vertical direction Z. The third joint 43 is formed by the end of the lower side Z2 of the first vertical furring strip 5A and the vertical furring strip joint 18 of the first joint member 6.

As shown in Figures 5 and 6, the end of the lower side Z2 of the second vertical furring strip 5B and the second connecting member 7 are bolted together with the fourth bolt 39 inserted through both the second vertical connecting round hole 14 of the second vertical furring strip 5B and the vertical furring round hole 35 of the second connecting member 7. Therefore, when the end of the lower side Z2 of the second vertical furring strip 5B and the second connecting member 7 are bolted together, the position of the end of the lower side Z2 of the second vertical furring strip 5B relative to the second connecting member 7 cannot be adjusted.

In this way, the fourth joint 44 that joins the vertical furring strips 5 and the horizontal furring strips 3 is provided with round holes (second vertical joint round hole 14 and vertical furring strip round hole 35) for bolting the vertical furring strips 5 to the horizontal furring strips 3 so that they cannot be adjusted in the vertical direction Z. The fourth joint 44 is formed by the end of the lower side Z2 of the second vertical furring strip 5B and the second vertical furring strip joint 32 of the second joint member 7.

[Fixing tool]
As shown in Fig. 6, the fixing tool 8 is fixed to the horizontal furring strip 3 by utilizing the fixing tool round hole 12 of the horizontal furring strip 3. When the horizontal furring strip 3 is supported by a pair of columns 4, the fixing tool 8 protrudes from the underside of the horizontal furring strip 3 toward the rising portion 2. The portion of the fixing tool 8 protruding from the underside of the horizontal furring strip 3 to the lower side Z2 is embedded in the rising portion 2. In other words, the rising portion 2 is constructed so as to embed the horizontal furring strip 3. In this embodiment, the fixing tool 8 is constituted by an anchor bolt. Also, in this embodiment, the fixing tool 8 is embedded in a state spanning the rising portion 2 and the floor slab 1.

In this way, the second joint 42 that joins the horizontal furring strip 3 and the fixing device 8 is provided with a fixing device round hole 12 (round hole) for bolting the fixing device 8 to the horizontal furring strip 3 so that it cannot be adjusted in the adjustment direction X. The second joint 42 is formed by the middle part of the horizontal furring strip 3 in the width direction Y.

In this embodiment, the correct posture is the posture in which the position of the horizontal furring strip 3 in the adjustment direction X relative to the rising portion 2 in a plan view and the angle of the horizontal furring strip 3 relative to the rising portion 2 in a plan view are correct.

As shown in Figure 8, the bottommost furring strip unit 45 is constructed by assembling a horizontal furring strip 3 with multiple vertical furring strips 5 so that they extend from the horizontal furring strip 3 to the upper side Z1. The example of the furring strip unit 45 shown in Figure 8 shows the bottommost furring strip unit 45 which is assembled with two horizontal furring strips 3 and four vertical furring strips 5. Of the two horizontal furring strips 3 in this bottommost furring strip unit 45, the horizontal furring strip 3 on the lower side Z2 is the horizontal furring strip 3 that is fixed to the upper surface of the rising portion 2. In addition, all four vertical furring strips 5 are second vertical furring strips 5B.

When the furring strip unit 45 thus assembled is supported by a pair of columns 4, the left end Y1 of the horizontal furring strip 3 on the lower side Z2 of the furring strip unit 45 is bolted to the left horizontal furring strip joint 16 of the first joint member 6 joined to the left column 4 Y1, and the right end Y2 of the horizontal furring strip 3 is bolted to the right horizontal furring strip joint 17 of the first joint member 6 joined to the right column 4 Y2, so that the horizontal furring strip 3 is supported by a pair of columns 4. When both ends of the horizontal furring strip 3 are bolted to the first joint member 6 in this way, the horizontal furring strip 3 can be placed in the correct position by bolting each of both ends of the horizontal furring strip 3 while adjusting their positions in the adjustment direction X. Note that the fixing device 8 is not shown on the furring strip unit 45 shown in FIG. 4, but the fixing device 8 may be fixed to the horizontal furring strip 3 when the furring strip unit 45 is assembled, and the furring strip unit 45 equipped with the fixing device 8 may be supported by a pair of columns 4.

Next, a furring strip installation method for fixing the horizontal furring strip 3 to the upper surface of the rising portion 2 rising from the floor slab 1 will be described.
The furring strip installation method includes a pre-attachment adjustment process and a horizontal furring strip fixing process. The pre-attachment adjustment process is a process in which the horizontal furring strip 3 is adjusted to a proper position and supported by a pair of adjacent columns 4. The horizontal furring strip fixing process is a process in which concrete is poured into the construction space S so as to bury the fixing tools 8, thereby constructing the rising portion 2 and fixing the horizontal furring strip 3 to the rising portion 2 in a proper position.

The pre-attachment adjustment process will be described. As shown in FIG. 7, in the pre-attachment adjustment process, before constructing the rising portion 2 in the construction space S, the furring strip unit 45 is supported by a pair of columns 4. At this time, for the horizontal furring strip 3 on the lower side Z2 of the furring strip unit 45, the end of the left side Y1 of the horizontal furring strip 3 on the lower side Z2 of the furring strip unit 45 is joined in a state where it is adjusted in position in the adjustment direction X relative to the first joining member 6, and supported by the column 4 on the left side Y1, and the end of the right side Y2 of the horizontal furring strip 3 on the lower side Z2 of the furring strip unit 45 is joined in a state where it is adjusted in position in the adjustment direction X relative to the first joining member 6, and supported by the column 4 on the right side Y2. By joining both ends of the horizontal furring strip 3 in a state where it is adjusted in position in the adjustment direction X relative to the first joining member 6, the horizontal furring strip 3 is supported in a proper posture by a pair of adjacent columns 4. Then, the fixing tool 8 fixed to the horizontal furring strip 3 supported by the pair of columns 4 protrudes from the horizontal furring strip 3 into the construction space S. Thus, in the pre-attachment adjustment process, the horizontal furring strip 3 is supported in the correct position by a pair of columns 4 with the fixing device 8 fixed to the horizontal furring strip 3 protruding into the construction space S where the rising portion 2 is constructed. Since the horizontal furring strip 3 is supported in the correct position by the pair of columns 4, it is possible to attach another furring strip unit to the upper side Z1 of the furring strip unit 45 supported by the pair of columns 4 before constructing the rising portion 2 in the construction space S.

After the pre-installation adjustment process is performed but before the horizontal furring strip fixing process is performed, as shown in FIG. 7, the rising portion 2 has not been constructed, and the space in which this rising portion 2 is constructed is referred to as the construction space S. In this embodiment, in addition to the rising portion 2, at least a portion of the floor slab 1 has not been constructed either, and the space in which the rising portion 2 is constructed as well as the space in which a portion of the floor slab 1 is constructed is also referred to as the construction space S.

Next, the horizontal furring strip fixing process will be described. After the pre-attachment adjustment process is performed, as shown in FIG. 7, the horizontal furring strip 3 is supported by a pair of columns 4 in the correct position, and the fixing tool 8 fixed to the horizontal furring strip 3 protrudes into the construction space S. In this state, the horizontal furring strip fixing process is performed. In the horizontal furring strip fixing process, as shown in FIG. 1, concrete is poured into the construction space S to construct the rising section 2, so that the fixing tool 8 protruding into the construction space S is embedded in the rising section 2, and the horizontal furring strip 3 in the correct position is fixed to the rising section 2 while maintaining that position. In this way, in the horizontal furring strip fixing process, concrete is poured into the construction space S to bury the fixing tool 8, and the rising section 2 is constructed, so that the horizontal furring strip 3 is fixed to the rising section 2 in the correct position.

[Another embodiment]
Other embodiments of the present invention will be described below. Note that the configurations of the embodiments described below are not limited to being applied alone, but may also be applied in combination with the configurations of other embodiments.

(1) In the above embodiment, the first joint 41 is provided with a long hole in the adjustment direction X (long hole 26 for left horizontal furring strip and long hole 27 for right horizontal furring strip). However, the present invention is not limited to such a configuration. For example, instead of a long hole in the adjustment direction X, the first joint 41 may be provided with a long hole in the width direction Y to bolt the horizontal furring strip 3 to the column 4 so that the horizontal furring strip 3 can be adjusted in the width direction Y, a long hole in the vertical direction Z to bolt the horizontal furring strip 3 to the column 4 so that the horizontal furring strip 3 can be adjusted in the vertical direction Z, or a round hole to bolt the horizontal furring strip 3 to the column 4 so that the position cannot be adjusted.

(2) In the above embodiment, a configuration in which the protruding step 2A is formed on the inner X2 portion of the rising portion 2 has been described as an example. However, the present invention is not limited to such a configuration. For example, the protruding step 2A does not have to be formed on the inner X2 portion of the rising portion 2.

(3) In the above embodiment, an example was described in which the horizontal furring strips 3 and multiple vertical furring strips 5 were assembled into the lowest furring strip unit 45. However, the horizontal furring strips 3 and vertical furring strips 5 may not be assembled into the lowest furring strip unit, and each of the horizontal furring strips 3 and vertical furring strips 5 may be supported separately by the columns 4.

1 Floor slab 2 Rising portion 2A Protruding step portion 3 Horizontal furring strip 4 Column 8 Fixture 12 Round hole for fixture (round hole)
26 Long hole for left horizontal furring strip (long hole)
27 Long hole for horizontal furring strip right (long hole)
41 First joint 42 Second joint 45 Furring strip unit S Construction space X Adjustment direction X2 Inside (room side)
Y Width direction (direction in which the horizontal furring strip extends)
Z1 Upper side

Claims (5)

A method for attaching a horizontal furring strip to an upper surface of a rising portion rising from a floor slab, comprising:
A pre-attaching adjustment process is performed in which the horizontal furring strip is adjusted to a proper position and supported by a pair of adjacent columns, and a horizontal furring strip fixing process is performed in which the horizontal furring strip is fixed to the upper surface of the rising portion after the pre-attaching adjustment process,
In the pre-attachment adjustment process, the anchor bolt as a fixing device having the upper end fixed to the horizontal furring strip is supported by the pair of columns in a state in which the lower end is protruding so as to float in the construction space in which the rising portion is constructed,
In the horizontal furring strip fixing process, concrete is poured into the construction space to bury the anchor bolts , thereby constructing the rising portion, thereby fixing the horizontal furring strip to the rising portion in the correct posture. The direction perpendicular to the direction in which the horizontal furring strip extends in a plan view is the adjustment direction,
The first joint portion that joins the horizontal furring strip and the column is provided with a long hole that is long in the adjustment direction for bolting the horizontal furring strip to the column so as to be adjustable in the adjustment direction,
A furring strip installation method as described in claim 1, wherein a second joint portion joining the horizontal furring strip and the fixing device is provided with a round hole for bolting the fixing device to the horizontal furring strip so that it cannot be adjusted in the adjustment direction. The furring strip installation method according to claim 1 or 2, in which the interior side portion of the rising portion has a protruding step that protrudes above the bottom surface of the horizontal furring strip. A furring strip installation method according to any one of claims 1 to 3, in which a plurality of vertical furring strips are assembled to the horizontal furring strip so as to extend upward from the horizontal furring strip, forming a bottom-most furring strip unit. A furring strip installation method according to any one of claims 1 to 4, wherein the anchor bolt is embedded in the raised portion and the floor slab below it.

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