JP2019056284A - Column base reinforcement unit and method for constructing structure using column base reinforcement unit - Google Patents

Abstract

To provide a method for constructing a structure using a column base reinforcement unit that can be placed and fixed on leveling concrete easily, and with which concrete installation for constituting a column base can be performed easily.SOLUTION: The method of the present invention includes a leveling concrete installation step, a reinforcement unit placement step for placing and fixing, on the leveling concrete, a column base reinforcement unit 10 in which reinforcements constituting a column base part are assembled as a unit in advance after the leveling concrete is hardened, a foundation reinforcement placement step for inserting and placing foundation beam main reinforcements and foundation lateral reinforcements into/on the column base reinforcement unit 10, a step of installing part of foundation concrete for installing concrete forming part of a foundation around the column base reinforcement unit 10, a column and beam assembly step for placing and fixing columns on the column base reinforcement unit to install a beam thereon, and foundation remaining part installation step for performing foundation work following the step of installing part of foundation concrete. The column and beam assembly step and the foundation remaining part installation step are performed in parallel.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method for constructing a structure using a reinforcing bar unit (reinforcing bar cage) in which column bases are pre-assembled.

  Conventionally, for the purpose of omitting construction and shortening the construction period, a precast (PCa) construction method of a foundation frame, a construction method using an anchor frame, and the like have been put into practical use. For example, Patent Document 1 discloses a construction method using an anchor frame.

  In the construction method disclosed in Patent Document 1, the anchor frame is formed in a rectangular shape with an angle material, and an anchor bolt is erected with the main body as a base point. It is described that the anchor frame is provided with an adjustment bolt at the lower part of the main body, the inclination of the anchor frame can be adjusted, and the anchor bolt can be positioned with high accuracy.

  In the construction method using the anchor frame having such a configuration, first, the basic columnar muscle composed of the main muscle and the gluteal muscle is arranged and fixed on the throw-away container, and the anchor frame is arranged so as to cover the outside. . After that, the position of the anchor frame is adjusted with adjusting bolts, and the main bars and barbs for footing and underground beams are placed, and concrete is placed. According to the construction method having such characteristics, it is described that the anchor bolts of the foundation column base can be positioned with high accuracy.

  However, in the construction method described in Patent Document 1, since the anchor frame and the basic columnar muscle are separated, it is necessary to produce two structures individually and to match the timing of carrying them to the construction site.

  Moreover, when constructing a foundation by a conventional construction method, it is common to adopt a construction procedure in which construction of the entire foundation (footing and underground beam) is completed and then construction of the superstructure is started. In such a case, there is a problem that a waiting time is generated between the foundation work and the superstructure work for each span, and the entire construction period is prolonged.

JP 7-292683 A

  In the present invention, it is possible to proceed with the construction of the superstructure without waiting for completion of the foundation work, and to provide a column base reinforcing bar unit and a construction construction method capable of shortening the construction period when constructing the construction. The purpose is to do.

  A column base reinforcing bar unit for achieving the above object includes a column base foundation placing reinforcing bar having a plurality of main bars and a plurality of barbs arranged to surround the plurality of main bars, and the column base. An anchor portion disposed inside the placing reinforcing bar portion and responsible for joining with the column, and the column base foundation placing reinforcing bar portion has a cross-sectional shape of the column base foundation placing reinforcing bar portion. A plurality of main muscle position holding plates to be maintained are provided, and the anchor portion is fixed to the main muscle position holding plate.

  Moreover, the construction method of the structure using the column base reinforcing bar unit having the above-described features is a pre-assembled unit that includes the discarding component placing step and the reinforcing bars constituting the column base part after the discarding component is cured. Reinforcing bar unit placement step for placing and fixing a column base reinforcing bar unit on the throwing-off unit, a foundation reinforcing bar placement step for inserting and placing a foundation beam main reinforcement and a foundation reinforcing bar with respect to the column base reinforcement unit, and the foundation column base reinforcement A foundation concrete partial placing process for placing concrete forming a part of the surrounding foundation of the unit, a column beam building process for laying and fixing a column on the column base reinforcing bar unit, and building a beam; and the foundation A foundation remaining portion placing step for performing foundation work after the concrete partial placing step, wherein the pillar beam building method and the foundation remaining portion placing step are performed in parallel. The And butterflies.

  Moreover, in the construction method of the structure using the column base reinforcing bar unit having the above characteristics, the column beam construction method includes upper floor work. By having such a feature, it is possible to carry out the floor construction on the upper floor at the same time as the foundation rest placement.

  Furthermore, in the construction method of the structure using the column base reinforcing bar unit having the above characteristics, the column beam building method step and the foundation remaining portion placing step are performed for each of a plurality of spans divided in a plane, The span for performing the beam building process is different from the span for performing the foundation remaining portion placing process. By having such a feature, spans for upper floor construction and foundation construction do not overlap in plane. Therefore, there is no possibility that the worker under the foundation work will be exposed to danger due to an object falling during the upper floor construction, and the construction can be proceeded safely.

  According to the column base reinforcing bar unit having the above-described features, it is possible to easily place and fix it on the throwing-off container and to easily perform the concrete placement for constituting the column base. Moreover, according to the construction method of the structure using the columnar reinforcing bar unit that exhibits such an effect, it becomes possible to proceed with the foundation remaining portion placing process and the superstructure construction almost in parallel, thereby shortening the construction period. be able to.

It is a perspective view which shows the structure of the columnar reinforcement unit which concerns on embodiment. It is a partial exploded perspective view which shows a mode that the rebar part for column base foundation placement and the anchor part which comprise the column base reinforcing bar unit which concerns on embodiment were decomposed | disassembled. It is a figure which shows the modification at the time of installing the lath formwork around a column base reinforcing bar unit. It is a figure which shows the example in the case of employ | adopting a steel frame as an anchor part which comprises a column leg reinforcement unit. It is a figure which shows the example at the time of integrating a fixing board with the main muscle position holding | maintenance plate. It is a figure which shows the example at the time of making the planar form of a main reinforcement holding | maintenance plate into a square shape. It is a figure which shows the example at the time of making the plane form of a main reinforcement holding | maintenance plate into a well shape. It is explanatory drawing of a throwing away con placement process. It is explanatory drawing of a reinforcing bar unit arrangement process. It is an image figure which shows a mode that a columnar reinforcement unit is conveyed by a track | truck etc. FIG. It is explanatory drawing of a basic muscle arrangement | positioning process. It is a figure which shows a mode that the formwork was installed in the footing formation range after the basic reinforcement arrangement | positioning process. It is explanatory drawing of a concrete partial placement process. It is a figure which shows a mode that the column member was erected on the upper part of the footing comprised in the concrete partial placement process. It is a figure which shows a mode that the construction of a steel beam and a deck plate and the foundation remainder placement process in a column beam construction process are performed simultaneously. It is a figure for demonstrating the state which divided the construction range of a large area into the some span.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment according to a column base reinforcing bar unit and a method for constructing a structure using the column base reinforcing bar unit of the present invention will be described in detail with reference to the drawings.

[Column Rebar Unit]
First, a columnar reinforcing bar unit according to the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view showing a configuration of a column base reinforcing bar unit according to the embodiment, and FIG. 2 shows a state in which the column base reinforcing bar unit is disassembled into a column base base placing reinforcing bar portion and an anchor portion. It is a partial exploded perspective view.

  The column base reinforcing bar unit 10 according to the present embodiment is configured on the basis of a column base foundation placing reinforcing bar portion 12 and an anchor portion 24. The column base foundation placement reinforcing bar portion 12 includes a plurality of main bars 14 (14a, 14b) arranged along the column base arrangement direction, and a plurality of barbs 16 arranged so as to surround the main bar 14. . The main muscle 14 includes, for example, a long main muscle 14a arranged at a rectangular apex and a short main muscle 14b arranged between the long main muscles 14a. The long main reinforcing bar 14a may be a screw reinforcing bar, and the short main reinforcing bar 14b arranged between them may be a screw reinforcing bar as necessary. This is because when a screw rebar is used, a general-purpose screw rebar nut and the like can be screwed together to perform positioning, leveling, and adjustment of the position of an accessory. In addition, when screw rebars are used, the length of the main bars can be shortened and the end L-type fixing can be omitted by installing a screw-type fixing hardware.

  The long main bar 14a is configured to be longer than the short main bar 14b. When the horizontal height of the upper end is aligned at the time of arrangement, the long main bar 14a is configured to increase the protruding amount on the lower end side. Yes. A base hardware 18 is provided at the lower end of the long main bar 14a. The base hardware 18 may be of any specific configuration, but for example, as shown in FIGS. 1 and 2, it may be configured by a socket 18a and a flat plate 18b provided at one end of the socket 18a. A level adjusting nut 17 may be provided on the upper portion of 18. By rotating the level adjustment nut 17 screwed into the lower end of the long main bar 14a and adjusting the insertion state of the long main bar 14a with respect to the socket 18a, the column base reinforcing bar unit 10 can be stably arranged. This is because leveling and tilt adjustment can be performed. In addition, by providing the base hardware 18 with the flat plate 18b, when the anchor is embedded on the throwing-down container serving as the installation surface, it is possible to configure a fixing surface for the anchor.

  The short main bars 14b are a plurality of main bars arranged between the long main bars 14a. In the case of the columnar reinforcing bar unit 10 according to the present embodiment, the lower end position is located above the long main bars 14a and floats. It is comprised so that it may be in a state. This is because, with such a configuration, when leveling and tilt adjustment of the columnar reinforcing bar unit 10 are performed, the screwing state of the level adjusting nut 17 provided in the long main reinforcing bar 14a may be adjusted. In addition, it is preferable to provide the fixing body 20 on the lower end side of each short major bar 14b and the long major bar 14a. The fixing body 20 is an element for fixing (retaining) the reinforcing bar to the concrete. For example, when a screw reinforcing bar is used as the main reinforcing bar 14, a plate nut or the like can be screwed together. By setting it as the structure provided with such a fixing body 20, fixing to concrete can be aimed at easily, without bending a reinforcing bar. Of course, if the fixing length is sufficient in design, neither the reinforcing bar bending nor the fixing body 20 is required.

  The reinforcing bar 16 constituting the column base foundation placing reinforcing bar 12 is arranged in a direction orthogonal to the arrangement direction of the long main bars 14a and the short main bars 14b, and surrounds the plurality of long main bars 14a and the short main bars 14b. The reinforcing bars are arranged so as to be narrower than the reinforcing bars constituting the main bars 14. A plurality of the gluteal muscles 16 are arranged along the longitudinal direction of the long major muscle 14a and the short major muscle 14b.

  Further, main bar position holding plates 22a and 22b are arranged inside the column base foundation placing reinforcing bar portion 12 according to the present embodiment. The main bar position holding plates 22a and 22b are connected to and supported by the anchor base 24, which will be described later, with respect to the column base foundation placement reinforcing bar 12 together with reinforcement for maintaining the cross-sectional shape of the column base foundation placement reinforcing bar 12. It is an element that plays a role. Although the specific form of main muscle position holding | maintenance plate 22a, 22b is not ask | required, in the case of the form shown in FIG. 1, FIG. 2, the planar shape is set to X type, and the long shape arrange | positioned diagonally among the long main muscles 14a. The main bars 14a are connected to each other. Moreover, although it is set as the structure provided with the two main muscle position holding | maintenance plates 22a and 22b in the example shown in FIG. 1, FIG. 2, it is good also as a structure further provided with a some plate.

  Here, in the above description and FIGS. 1 and 2, the four long main reinforcing bars 14 a are arranged in a rectangular shape, so that the planar shape (cross-sectional shape) of the column base foundation placing reinforcing bar portion 12 is a rectangular shape. It was described as follows. However, the planar shape of the column base foundation placing reinforcing bar portion 12 can be a polygon or a circle according to the shape of the column of the building to be constructed, etc., and the number of the long main bars 14a is increased or decreased as necessary. You can do that.

  The anchor part 24 is a part that constitutes an anchor that supports the lower end of the column. In the example shown in FIGS. 1 and 2, the anchor portion 24 has a plurality of anchor bolts 26 (in FIGS. 1 and 2) arranged along the arrangement direction of the main reinforcing bars 14 constituting the column base foundation placing reinforcing bar portion 12. In the example shown, it is composed of 8). The plurality of anchor bolts 26 are provided at positions corresponding to the bolt holes defined for fixing the pillars. The plurality of anchor bolts 26 are provided with a template 28 for positioning.

  The anchor part 24 can be fixed to the column base foundation placing reinforcing bar part 12 in various ways depending on its form. In the case of the form shown in FIGS. 1 and 2, the anchor part 24 is provided with the main bar position holding plate 22a. It is comprised so that it may fix via. Specifically, the anchor part 24 shown in FIG. 2 is configured to include two anchor bolts 26 in four locations. A fixing plate 30 is provided at the lower end of the pair of anchor bolts 26.

  The fixing plate 30 includes an upper plate and a lower plate, and each plate is fixed to the anchor bolt 26 by a nut 30a. The anchor portion 24 is fixed to the column base foundation placement reinforcing bar portion 12 by sandwiching and fixing the main bar position holding plate 22a between the upper plate and the lower plate of the fixing plate 30.

  According to the column base reinforcing bar unit 10 having such a configuration, it is lighter than the PCa unit and the conveyance cost is low. Naturally, the lifting machine can also be reduced in size and is inexpensive. In addition, it is not necessary to check the number of rebars for preparing the column base and to prepare at the work site. Furthermore, it is possible to easily adjust the inclination when installing the column base reinforcing bar unit 10.

[Modification]
Moreover, in the said embodiment, the column base reinforcement unit 10 described so that it might be comprised only from the column base foundation placement reinforcing bar part 12 and the anchor part 24. FIG. However, as shown in FIG. 3, the column base reinforcing bar unit 10 according to the present embodiment may be configured such that an accessory such as a lath mold 32 is arranged on the outer periphery of the column base foundation placing reinforcing bar portion 12. If a “formwork” such as a lath is placed in the column base reinforcing bar unit 10 in advance, the formwork for the column base advance placement is incorporated in the unit in advance, which can contribute to reduction in the number of man-hours on site. Further, in this modification, if the mold provided in the buried portion is a lath, the mold removal work is not necessary. In the case of such a configuration, in order to allow the beam-base reinforcing bar unit 10 to pass through the beam bars and the hook-skin bars, it is only necessary to provide an opening in a part of the lath, and the construction efficiency is good. Note that, in a portion where the concrete surface appears as a finish finish, as a mold provided for the column base reinforcing bar unit 10, a type of mold (which can be removed) other than a lath may be arranged.

Moreover, in the said embodiment, it is set as the structure which arrange | positions the several anchor bolt 26 only about the anchor part 24, and connects this to the reinforcement part 12 for column base foundation placement. However, as the columnar reinforcing bar unit 10 according to the present invention, a steel frame may be employed as the anchor portion 24 as shown in FIG. Thus, the configuration of the anchor portion 24 can be configured by converting its form into various types according to the specifications of the building.
In the above-described embodiment, the fixing plate 30 that fixes the anchor bolt 26 is configured by a pair of plates and sandwiches the main bar position holding plate 22a. However, the main bar position holding plate 22a according to the embodiment may have a configuration in which the fixing plate 30 is integrated as shown in FIG.

In addition, since the main muscle position holding plate 22b can also eliminate the need for a muscular intersection, for example, the main muscle 14 in addition to the mouth shape as shown in FIG. 6 and the well shape as shown in FIG. If it can contribute to reinforcement of the arrangement form, it may be divided.
Further, the main muscle position holding plates 22a and 22b may be provided with rib members along the main surface form to increase the rigidity. By reinforcing the rib material, the rigidity (strength) of the member can be increased without increasing the thickness of the main bar position holding plates 22a and 22b themselves. In addition, since a thin material can be used as a constituent material, the weight can be reduced and the material cost can be reduced as compared with the rigidity enhancement by a thick material.

[How to build]
Next, a construction method using the columnar reinforcing bar unit 10 having the above-described configuration will be described with reference to FIGS.
First, as shown in FIG. 8, the ready-mixed concrete 50 is placed in the foundation forming portion in the construction range (abandoned con placement step). After the ready-mixed concrete 50 is hardened, as shown in FIG. 9, the column base reinforcing bar unit 10 is arranged at a predetermined column installation position. Here, the column base reinforcing bar unit 10 carries in a construction site a prefabricated factory or a pre-assembled yard in the site site. The column rebar unit 10 may be carried by a truck or the like as shown in FIG. For this reason, although the conveyance form is similar to the case where the PCa unit is used, the column base reinforcing bar unit 10 which is composed of a reinforcing bar or only a reinforcing bar and a steel frame is a truck which is lighter than the PCa unit and has the same loading capacity. The amount that can be carried can be increased (rebar unit arrangement process). When the column base reinforcing bar unit 10 is transported / lifted, if the unit has insufficient rigidity, an oblique reinforcing bar 34 as shown by a two-dot chain line in FIG. It is better to improve the rigidity. This is because it is possible to prevent displacement due to vibration and to ensure accuracy. Here, in the case where the diagonal reinforcing bars 34 are embedded, if there is a portion where the cover size is insufficient, the outer shape of the columnar reinforcing bar unit 10 is configured by incorporating the diagonal reinforcing bars 34 inside the main bars 14. You may make it suppress a dimension.

  As a means for increasing the rigidity of the column base reinforcing bar unit 10, there is a means for increasing the number of main bar position holding plates 22a and 22b in addition to incorporating the diagonal reinforcing bars 34 described above. For this reason, which means should be used to improve the rigidity of the column-base reinforcing bar unit 10 may be determined by considering the construction conditions.

  After the column base reinforcing bar unit 10 is arranged, the reinforcing bars for constituting the foundation including the column base reinforcing bar unit 10 are arranged. Specifically, as shown in FIG. 11, insertion of main bars 52 and 54 for constituting the lower footing of the underground beam and the column base reinforcing bar unit 10 arranged so as to penetrate the side surface of the column base reinforcing bar unit 10 is performed. Do. Next, the reinforcement 56 for constituting the underground beam and the reinforcement 58 for constituting the footing are arranged (basic reinforcement arrangement step).

  After the basic muscle placement step is completed, as shown in FIG. 12, the stop mold 60 is installed in the range constituting the footing. Thereafter, the ready-mixed concrete is placed in the range where the stop mold 60 is installed to form the footing 62 as shown in FIG. Since the columnar reinforcing bar unit 10 according to the embodiment already includes the main reinforcing bar 14 and the reinforcing bar 16, the concrete can be easily placed and the footing 62 can be configured simply by installing a formwork around it. (Concrete part placement process). Here, for example, when adopting a thing equipped with a lath mold frame 32 as shown in FIG. 3 as the column base reinforcing bar unit 10, by adopting a configuration in which the lath (lass mold frame 32) is arranged in the concrete embedded portion, The mold removal step is not necessary, and as described above, it is easy to penetrate the beam bars and the hook-skin bars (the main bars 52 and 54 and the barbs 56 and 58 for forming the underground beam and the lower footing). Thus, the construction efficiency can be improved.

  After forming a part of the foundation such as the footing, the column member 64 is installed and fixed to the anchor bolt 26 protruding from the footing 62 configured through the column base reinforcing bar unit 10 (see FIG. 14). Then, as shown in FIG. A steel beam 66 on the upper floor, a floor deck plate 68, and the like are erected between the standing column members 64 (column beam building process). In addition, after the formation of a part of the foundation, in parallel with the column beam construction process, the remaining foundation part was installed with a stop form for forming underground beams (not shown), and foundation work such as concrete placement (Basic rest placement process). Here, the column beam erection method and the foundation remaining portion placing step are performed at positions that do not overlap vertically as shown in FIG. This is from the viewpoint of preventing accidents caused by falling objects from upper floors.

  Moreover, when implementing the construction method according to the present embodiment, for example, when each of A to H shown in FIG. 16 is each span that divides the construction area, the column beam building method and the foundation remaining portion placement In the process, it is preferable to start the different spans and proceed to switch the spans clockwise or counterclockwise. More specifically, for example, in the column beam building process, the operation is advanced in the clockwise direction with span A as the base point, span E, span F, span G, span H, span D, span C, and span B. Just do it. On the other hand, in the foundation remaining portion placing step, for example, the operation may be performed in the order of span D, span C, span B, span A, span E, span F, and span G, starting from span H.

  As described above, according to the construction method using the column base reinforcing bar unit according to the present embodiment, the superstructure work such as the beam construction work on the upper floor can be performed ahead of time without waiting for the completion of the foundation work. Is possible. Therefore, the construction period of a multi-span building such as a warehouse having a large flat area can be greatly shortened.

  Further, the columnar reinforcing bar unit 10 according to the embodiment may be a unit in which the configuration range to be unitized is further expanded. For example, the main beam 52 of the underground beam (a part of the main beam of the underground beam) arranged in the vicinity of the column base reinforcing bar unit 10 and the reinforcing bar 56 around the main beam 52 are arranged in advance, and this is arranged as one unit. It is what. By discarding such a large unit and placing it on the ready-mixed concrete 50 after the con placement process, and arranging the main reinforcement 54 and the reinforced reinforcement 58 to form the lower footing, the number of lifting operations and man-hours during on-site construction are reduced Can be achieved. In addition, since the columnar reinforcement unit 10 which concerns on embodiment is lightweight compared with PCa, even if it is a case where such a large sized unit is comprised, it will not interfere with conveyance and lifting.

  In the above embodiment, the point that the foundation work and the upper floor (for example, the beam on the second floor, the floor deck work, etc.) are performed in parallel is described. It was stated that the installation process should be done in a different span. However, for example, in the case of a five-story building, once the floor construction on the second floor is completed (or the floor placing process is finished), the building process and the foundation remaining part placing process on the third floor or more are performed in the same span. It can also be done. This is because there is no risk of accidents due to falling objects from the above-mentioned upper floor construction section. According to such a construction method, since the floor portion of the second floor is shaded or protected from rain, the working environment in the heat and rain is improved.

  Further, in the above embodiment, the column standing on the upper part of the column beam reinforcing unit 10 is described assuming a steel column connected to the anchor bolt 26, but it can be used as a column base. If so, there is no limitation on the superstructure. For example, an application method in which a column made of reinforced concrete is applied or a seismic isolation unit is interposed between the column base and the column may be used.

  Further, the connection of the column to the anchor portion 24 of the column base reinforcing bar unit 10 and the fixing method are not limited, and various existing techniques can be applied. For example, an NC base method can be applied.

  Furthermore, in the above-described embodiment, it has been described that the column-base reinforcing bar unit is mainly intended for buildings and the construction method using the same. However, the present invention is applied when constructing structures other than buildings such as bridges. You can also.

  Naturally, when implementing the construction method according to the above-described embodiment, the construction accuracy may be improved and the labor may be reduced by applying a known construction technique. For example, when the height of the columnar reinforcing bar unit 10 is high, a temporary diagonal member (diagonal reinforcing bar) as disclosed in Patent Document 1 described above is arranged to maintain the columnar reinforcing bar unit 10 horizontally. Anyway.

  Also, because of the high versatility related to the installation of the column base rebar unit 10, when a pile head or the like protrudes from the installation location of the column base reinforcement unit 10, a jig hardware that avoids the pile head is arranged. Further, the column base reinforcing bar unit 10 may be arranged with respect to the jig hardware.

10 ......... Column base reinforcement unit, 12 ......... Column base foundation reinforcement, 14 ......... Main reinforcement, 14a ......... Long main reinforcement, 14b ......... Short main reinforcement, 16 ......... Reinforcement, 17 ......... Level adjustment nut, 18 ......... Base hardware, 18a ......... Socket, 18b ......... Plate, 20 ...... Fixing body, 22a, 22b ......... Main bar position holding plate, 24 ......... Anchor 26, ... Anchor bolt, 28 ... Template, 30 ... Fixing plate, 30a ... Nuts, 32 ... Lath form, 34 ... Diagonal reinforcement, 50 ... Ready-mixed concrete , 52... Main muscle, 54... Main muscle, 56... Gluteal muscle, 58... Gluteal muscle, 60... …… Steel beam, 68 ……… Deck plate.

Claims (4)

A column base foundation placing reinforcing bar portion having a plurality of main bars and a plurality of barbs arranged to surround the plurality of main bars;
An anchor portion that is arranged inside the column base foundation placing reinforcing bar portion and bears a connection with the column;
A plurality of main bar position holding plates for maintaining the cross-sectional shape of the column base foundation placement reinforcing bars are provided in the column base foundation placement reinforcing bars,
The anchor base is fixed to the main bar position holding plate. Abandoned con placement process,
After the abandoned container is cured, a reinforcing bar unit arranging step for arranging and fixing the column base reinforcing bar unit assembled in advance as a unit with the reinforcing bars constituting the column base part on the discarded container;
A foundation reinforcement arrangement step of inserting and arranging foundation beam reinforcements and foundation reinforcements with respect to the column base reinforcement unit;
A foundation concrete part placing step for placing concrete that forms part of the foundation around the column base reinforcing bar unit;
Column beam construction method of arranging and fixing columns on the column base reinforcing bar unit and erection of the beams,
Foundation remaining part placing process for performing foundation work after the foundation concrete part placing process,
A method for constructing a construct having
A method for constructing a structure using a column base reinforcing bar unit, wherein the column beam building method step and the foundation remaining portion placing step are performed in parallel.   The method for constructing a structure using the column base reinforcing bar unit according to claim 2, wherein the column beam building process includes upper floor construction.   The column beam erection method and the foundation remaining portion placing step are performed for each of a plurality of spans divided in a plane, and the span for performing the column beam erection method and the foundation remaining portion placing step are performed. The method for constructing a structure using the columnar reinforcing bar unit according to claim 2 or 3, wherein the span to be made is different.

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