JP2018062789A - Partition, column, installation method of partition, structure having partition and construction method of structure - Google Patents

Abstract

In construction of a structure having a large number of partition walls, it is possible to save work on site and shorten the process, partition walls, support columns, partition wall installation methods, structures with partition walls, and construction of the structures Provide a method. A partition wall 10 according to the present invention is a partition wall made of a precast wall body 10a, and includes a loop joint 20 protruding from a side end face 10b of the wall body 10a. The loop joint 20 may have a bent portion 20b that is curved or bent around an axis along the wall thickness direction X. [Selection] Figure 2

Description

  The present invention relates to a partition wall, a support column, a partition wall installation method, a structure including the partition wall, and a method of constructing the structure.

  Conventionally, a low-level radioactive waste disposal facility as shown in FIG. 7 is known. This facility 1 has a large number of lattice-like small cells (cells 3) called cells surrounded by a partition wall 2 made of reinforced concrete. In each cell 3, drums or the like storing low-level radioactive waste are placed one by one, and the upper surface of each cell 3 is closed with a canopy (not shown). The upper opening size of each cell 3 may be planned to be several m square (for example, 6 m square) in order to suppress the air dose. In this case, a considerable number of partition walls 2 for partitioning the cells 3 are required. As the partition wall 2, for example, a structure described in Patent Document 1 is known.

  When constructing this facility 1, conventionally, as shown in FIG. 8 (1), a concrete bottom slab 4 is constructed on the ground G, and an outer wall 5 is preliminarily constructed around this, then FIG. 8 (2). As shown in FIG. 2, a large number of partition walls 2 were constructed on the top surface of the bottom slab 4 with cast-in-place concrete. In this case, since a large number of reinforcing bars extending vertically upward from the bottom slab 4 are arranged at the construction position of the partition wall 2, a great hindrance has occurred in the movement of workers to other cells. In addition, as described above, when the partition walls 2 are arranged close to each other in several m squares, it is an operation such as rebar / formwork assembly in a narrow space. Thus, the process of the partition wall 2 took time and effort, and occupied a very large ratio in the whole construction period. In order to shorten the overall construction period and reduce the construction cost, it was required to save labor on site work on the partition wall and to shorten the partition wall process.

  On the other hand, a loop joint used for connecting floor slab concretes in a bridge floor slab or the like is known (see, for example, Patent Documents 2 and 3). As shown in FIG. 9, the loop joint 6 protrudes from the upper and lower axial reinforcing bars 8 arranged in the floor slab concrete 7 arranged to face each other, and the thickness direction D (load acting direction) of the floor slab concrete 7. And a curved portion 6a curved in a semicircular arc around a horizontal axis perpendicular to the horizontal axis. The floor slab concrete 7 is connected to each other by placing the curved portions 6a so as to overlap each other and placing the concrete 9 in such a manner that it is embedded.

JP 2009-293347 A Japanese Patent No. 3507423 Japanese Patent No. 4006481

  As described above, in the construction of a structure having a large number of partition walls arranged close to each other, there has been a demand for a technique that can save labor on-site work on the partition wall and shorten the partition wall process.

  The present invention has been made in view of the above, and in the construction of a structure having a large number of partition walls, the work on site can be labor-saving, the partition wall, the column, the installation method of the partition wall, which can shorten the process, It aims at providing the structure provided with a partition wall, and the construction method of this structure.

  In order to solve the above-described problems and achieve the object, a partition wall according to the present invention is a partition wall made of a precast wall body, and includes a loop joint protruding from a side end surface of the wall body. To do.

  Another partition wall according to the present invention is characterized in that, in the above-described invention, the loop joint has a bent portion that is curved or bent around an axis along the wall thickness direction.

  Another partition wall according to the present invention is characterized in that, in the above-described invention, the loop joint has a bent portion that is curved or bent around an axis along the wall core direction.

  Further, the column according to the present invention is a column made of a precast column that is disposed opposite to the above-mentioned side wall of the partition wall at a predetermined interval, and projects from the side wall of the column, And a loop joint engageable with the loop joint of the partition wall.

  The partition wall installation method according to the present invention is a method of installing the partition wall described above, and after the above-mentioned support column is installed on the upper surface of the bottom plate, a loop joint of the partition wall and a loop joint of the support column are provided. The partition wall is inserted and disposed from above or from the side of the support so as to overlap each other.

  Moreover, the structure provided with the partition wall which concerns on this invention is provided with the partition wall mentioned above.

  Moreover, the structure provided with the other partition wall which concerns on this invention is a radioactive waste disposal facility in the invention mentioned above, It is characterized by the above-mentioned.

  Moreover, the construction method of the structure according to the present invention is a method of constructing the above-described structure, and after installing the above-mentioned column on the upper surface of the bottom plate, the partition wall loop joint and the column loop joint include The partition wall is inserted and arranged from above or from the side of the column so as to overlap each other, and then concrete is placed between the column and the side end surface of the partition wall.

  The partition wall according to the present invention is a partition wall made of a precast wall body, and includes a loop joint protruding from the side end surface of the wall body, so that the partition wall can be easily installed at a predetermined construction position. After installation, it can be easily and firmly connected to adjacent struts etc. via cast-in-place concrete. For this reason, the number of man-hours for rebar and formwork assembly required for the construction of partition walls is greatly reduced, labor saving and efficiency improvement of on-site work is achieved, and the on-site process of partition walls is greatly shortened to reduce construction costs. There is an effect that can be. Labor saving and efficiency improvement of on-site work can be achieved, so that the number of workers and management risk can be reduced. Moreover, since the partition wall is precast produced in a factory, quality can be improved and uniformized. For this reason, the quality of the partition wall does not depend on the skill of the worker. Moreover, since it becomes difficult to be influenced by the concrete placement environment, it is possible to reduce the risk of construction failures occurring at the site. Furthermore, since the vertical lap joint from the bottom plate is not required, the safety of field work can be improved.

  Further, according to another partition wall according to the present invention, the loop joint has a bent portion that is curved or bent around an axis along the wall thickness direction, so that the partition wall is dropped vertically from above with a crane or the like. There is an effect that the installation method to be installed in the housing is possible. In particular, when a partition wall is built right next to a pre-installed support column and then both are connected with cast-in-place concrete, the support column has a loop joint of the same form at a position slightly shifted in the wall thickness direction of the side end face. If the partition wall is dropped in the state of being adjacent to the support column, the loop joints do not interfere with each other, so that the partition wall can be easily positioned adjacent to the support column. For this reason, when installing the partition wall, the loop joint of the partition wall can be arranged so as to overlap with the loop joint of the support in front view.

  Further, according to another partition wall according to the present invention, the loop joint has a bent portion that is curved or bent around an axis along the wall core direction, and therefore the installation method for installing the partition wall at the construction position from the side. There is an effect that is possible.

  Further, according to the column according to the present invention, the column is a column composed of a precast column that is disposed to face the side wall of the partition wall with a predetermined interval, and protrudes from the column side wall. Since the loop joint that can be engaged with the loop joint of the partition wall through the concrete is provided, an effect that it can be easily and firmly connected to the built-in partition wall and the cast-in-place concrete is achieved.

  Further, according to the partition wall installation method according to the present invention, the partition wall is installed as described above, and after the above-mentioned support column is installed on the upper surface of the bottom plate, the partition wall loop joint and the post loop Since the partition wall is inserted and disposed from above or from the side of the support column so that the joints overlap each other, the partition wall can be easily installed at a construction position next to the support column. Moreover, both can be connected by placing concrete in the overlapping loop joint portion.

  Moreover, according to the structure provided with the partition wall which concerns on this invention, since the partition wall mentioned above is provided, there exists an effect that the structure which can be constructed in a short period of time and low cost can be provided.

  Further, according to the structure including the other partition wall according to the present invention, since it is a radioactive waste disposal facility, it is possible to provide a radioactive waste disposal facility that can be constructed in a short period of time and at a low cost. Play.

  Further, according to the construction method of the structure according to the present invention, the above-described structure is constructed, and after the above-mentioned support is installed on the upper surface of the bottom plate, the partition wall loop joint and the support loop The partition wall is inserted and arranged from above or from the side of the support column so that the joints overlap each other, and then concrete is placed between the support column and the side end surface of the partition wall. There is an effect that a structure can be constructed.

FIG. 1 is a diagram showing an embodiment of a structure including a partition wall according to the present invention and a method for constructing the structure. FIG. 2 is a view showing an embodiment of a partition wall according to the present invention, in which (1) is a front view, (2) is a side view, and (3) is a top view. FIG. 3 is a view showing an embodiment of a support according to the present invention, where (1) is a front view and (2) is a bottom view. 4A and 4B are diagrams showing a connection method with the bottom plate, where FIG. 4A is a connection example between the partition wall and the bottom plate, and FIG. 4B is a view showing a connection example between the support column and the bottom plate. FIG. 5 is a view showing an embodiment of the partition wall installation method according to the present invention, in which (1) is a front sectional view and (2) is a plan sectional view. FIG. 6 is a diagram showing an embodiment of a structure including a partition wall and a method for constructing the structure according to the present invention, where (1) is a top view and (2) is an AA line of (1). FIG. FIG. 7 is a schematic perspective view showing an example of a conventional low-level radioactive waste disposal facility. FIG. 8 is a schematic perspective view showing an example of a conventional method for constructing a low-level radioactive waste disposal facility. FIG. 9 is a cross-sectional view showing an example of a conventional loop joint.

  EMBODIMENT OF THE INVENTION Below, embodiment of the partition wall, the support | pillar, the installation method of a partition wall, the structure provided with a partition wall, and the construction method of this structure concerning this invention is described in detail based on drawing. Note that the present invention is not limited to the embodiments.

  First, a structure including a partition wall according to the present invention and a method for constructing the structure will be schematically described with reference to FIG. As shown in FIG. 7, a structure 100 according to the present invention includes a partition wall 10 and a support column 12 made of precast concrete with reinforcing bars, a bottom plate 14 and an outer wall 16 made of reinforced concrete, and a canopy (not shown). It is a rectangular parallelepiped box. The interior of the structure 100 is partitioned into a plurality of lattice-like cells 18 in plan view by a large number of rectangular partition walls 10. Therefore, the structure 100 of the present invention has the same shape as the conventional structure shown in FIG.

  The example of FIG. 7 shows a case of a low-level radioactive waste disposal facility in which a total of 66 (= 11 × 6) cells, 11 in the width direction and 6 in the depth direction, are formed. Each cell has a substantially cubic shape with a side of about 6 m, and the thickness of each partition wall 10 is about 0.4 m. Therefore, the width of the structure 100 is about 64 m, the depth is about 36 m, and the height is about 6 m. Note that the present invention is not limited to the number of cells, the shape, and the size, and may be different from the number of cells, the shape, and the size.

  When constructing this structure 100, first, as shown in FIG. 1 (1), after the bottom plate 14 is constructed on the ground G, pillars are formed at the lattice points at the four corners of the cell 18 on the bottom plate 14 with a crane or the like. 12 is installed. Thereafter, the partition wall 10 is dropped between the columns 12 with a crane or the like and installed, and concrete is placed between the columns 12 and the partition wall 10 to partition the cells 18. Next, as shown in FIG. 1 (2), the outer wall 16 is constructed around the periphery, and then a canopy (not shown) is provided on the upper surface of the cell 18 to complete the structure 100. When the low-level radioactive waste disposal facility is in service, drums storing the radioactive waste are placed in the cells 18.

  Next, specific configurations of the partition wall 10 and the support column 12 according to the present invention applied to the structure 100 will be described.

  As shown in FIG. 2, the partition wall 10 according to the present invention includes a precast concrete wall body 10 a in which reinforcing bars are arranged. The wall body 10a has a rectangular plate shape, and a plurality of loop joints 20 are provided on the left and right side end faces 10b.

  The loop joint 20 is arranged in the wall body 10a and protrudes in a straight line horizontally from the side end face 10b. The loop joint 20b connects the ends of the pair of upper and lower widthwise reinforcing bars 20a in a semicircular arc shape. It consists of. The loop line 20b constitutes a bent portion curved in a semicircular arc around the horizontal axis along the wall thickness direction X.

  In the example of FIG. 2, a case is shown in which the loop joints 20 are provided in two rows on the left and right side end faces 10 b with a space in the wall thickness direction X and six in a vertical direction. However, the number of loop joints 20 of the present invention is not limited to this number and arrangement, and other numbers and arrangements of loop joints may be used. In addition, although the same number of loop joints 20 are arranged in the left and right directions, the same number and the same arrangement are not necessary as long as the joint function with the loop joint 22 of the struts 12 arranged to face each other can be exhibited.

  Moreover, in this Embodiment, the partition wall 10 becomes a structure of two sheets up and down, and FIG. 2 has shown the partition wall 10 of the lower side. As shown in FIG. 4A, a single partition wall is configured by connecting and arranging an upper partition wall 10 having the same configuration on the partition wall 10. In order to enable this configuration, a recess 10 c is formed on the upper end surface of the lower partition wall 10. On the other hand, a convex portion 10 d is formed on the lower end surface of the upper partition wall 10. When constructing the partition wall 10 on the bottom plate 14, first, the lower surface of the lower partition wall 10 is inserted and disposed in a positioning groove 14 a formed in advance on the bottom plate 14. Then, the upper partition wall 10 is dropped onto the partition wall 10 and the upper and lower partition walls 10 are connected by fitting the projection 10d into the recess 10c. The joint surfaces of the concave portion 10c and the convex portion 10d are joined via an adhesive such as an epoxy adhesive. In the present embodiment, it is assumed that the partition wall 10 has a lateral width of about 3.3 m, a wall thickness of about 0.4 m, and a height of about 3 m. When this partition wall 10 is connected vertically, the wall height is about 6 m. In addition, the present invention is not limited to a system in which two partition walls 10 are connected in the vertical direction, and may be a system in which three or more partition walls are connected in the vertical direction, or may be configured by one. .

  The support | pillar 12 which concerns on this invention consists of the column 12a of the precast concrete which arranged the reinforcing bar, as shown in FIG. This column 12a has a cross-shaped cross section in plan view, and a plurality of loop joints 22 are provided on the side end surfaces 12b of the front, rear, left and right convex portions.

  The loop joint 22 has the same form as the loop joint 20 provided in the partition wall 10. That is, the loop joint 22 is arranged in the column 12a and protrudes in a straight line horizontally from the side end face 12b, and a loop bar connecting the ends of the pair of upper and lower widthwise bars 22a in a semicircular shape. 22b. The loop line 22b constitutes a bent portion curved in a semicircular arc around the horizontal axis along the column width direction Y.

  In the example of FIG. 3, a case is shown in which the loop joints 22 are provided in two rows at intervals in the column width direction Y at the front, rear, left, and right side end surfaces 12b, and 15 are provided at intervals in the vertical direction. Of the 15 pieces, the lower 6 pieces correspond to the arrangement mode of the loop joint 20 of the lower partition wall 10, and the upper nine pieces are arranged corresponding to the arrangement mode of the loop joint 20 of the upper partition wall 10. ing. The number of loop joints 22 of the present invention is not limited to this number and arrangement, and other numbers and arrangements of loop joints may be used. Further, the same number of loop joints 22 in the front and rear, and the same arrangement are used, but the same number and arrangement in the front and rear and the right and left may not be required as long as the joint function with the loop joint 20 of the partition wall 10 arranged to face each other can be exhibited.

  Here, in the present embodiment, when the partition wall 10 is dropped from above between the two struts 12 that are preliminarily installed on the bottom plate 14, the loop joints 20, 22 are prevented from interfering with each other. 22 are slightly shifted from each other in the column width direction Y (wall thickness direction X) when viewed from above. By doing so, the partition wall 10 can be dropped from above between the two struts 12 and installed smoothly without the loop joints 20 and 22 interfering with each other. When the partition wall 10 is dropped between the support columns 12, the loop joints 20 and 22 overlap in the wall thickness direction X (see FIG. 2). The partition wall 10 and the support | pillar 12 are connected with these loop joints 20 and 22 via the concrete cast here. In the present embodiment, the loop joints 20 and 22 overlap in the wall thickness direction X means that the front ends of the corresponding pair of upper and lower width direction reinforcing bars 20a and 22a overlap in the front view of the wall and at the same time the width direction reinforcing bar 20a. , 22a and the corresponding semicircular arc-shaped loop streaks 20b, 22b form a substantially circular or elliptical closed region in front view of the wall.

  A plurality of reinforcing bars 24 protrude downward from the lower surface 12c of the column 12a. As shown in FIG. 4 (2), the reinforcing bars 24 are inserted into a mortar-filled mechanical joint 14 b that is embedded in advance on the upper surface of the bottom plate 14 when the support column 12 is installed on the bottom plate 14. In addition, the support | pillar 12 of this Embodiment assumes that a horizontal width is about 0.4 m and height is about 6 m.

  Next, specific procedures of the partition wall installation method and the structure construction method according to the present invention will be described.

  As shown in FIG. 5, pillars 12 are installed at lattice points which are the four corners of the cell 18 on the bottom plate 14 with a crane or the like (step S1). In this case, the rebar 24 on the lower surface 12 c of the support column 12 is inserted into the mechanical joint 14 b on the upper surface of the bottom plate 14 to install the support column 12. The support 12 is temporarily supported via a scaffold (not shown) installed around the support 12. Next, the lower partition wall 10 is dropped between the columns 12 with a crane or the like (step S2). Here, as shown in FIGS. 2 and 3, the loop joint 20 of the partition wall 10 and the loop joint 22 of the support column 12 each have a pair of upper and lower width direction reinforcing bars 20a and 22a and a semicircular arc shape curved around a horizontal axis. The loop joints 20b and 22b are arranged at positions slightly shifted so as not to interfere with each other. Therefore, even when the partition wall 10 is dropped from above, the loop joint 20 of the partition wall 10 does not interfere with the loop joint 22 of the support column 12. For this reason, by dropping the partition wall 10 from above between the columns 12, it can be easily installed between the columns 12. The lower surface of the dropped partition wall 10 is inserted into the concave groove 14a on the bottom plate 14 and positioned. The partition wall 10 is temporarily supported via a scaffold (not shown) installed around the periphery. When the partition wall 10 is thus positioned, the loop joints 20 and 22 overlap in the wall thickness direction X. If necessary, the overlapping portions of the loop joints 20 and 22 may be fastened with a number line or the like.

  When a loop joint having a shape curved around a horizontal axis perpendicular to the thickness direction of the floor slab is applied to the partition wall 10 and the support column 12 as in the conventional bridge floor slab, the loop joint is curved in a horizontal plane. Therefore, if the partition wall 10 is dropped vertically from above with a crane or the like, the loop joints interfere with each other, making it difficult to build. In the present invention, each of the loop joints 20 and 22 is formed into a joint shape that is curved in a vertical plane, so that the partition wall 10 can be erected from the vertical direction.

  Subsequently, the upper partition wall 10 is dropped from above the lower partition wall 10 in the same manner (step S3). In this case, the convex portion 10d on the lower end surface of the upper partition wall 10 is fitted into the concave portion 10c on the upper end surface of the lower partition wall 10 and connected via an adhesive.

  Next, the reinforcing bars 26 are arranged in the vertical direction between the side end surface 12b of the support column 12 and the side end surface 10b of the partition wall 10 (step S4). Further, reinforcing bars may be arranged in the wall thickness direction X. Subsequently, after installing a concrete mold (not shown) along the wall surface of the partition wall 10 so as to surround the side end faces 12b and 10b, concrete is placed in the mold (step S5), and after curing for a predetermined period. Demold. By doing so, the partition wall 10 and the struts 12 on both sides are connected by the cast-in-place concrete 28, and the cells 18 are partitioned. In the present embodiment, it is assumed that the cast-in-place concrete 28 has a lateral width of about 0.6 m. As shown in FIG. 6, after completing the construction of all the partition walls 10, the outer wall 16 is constructed on the outer periphery, and the canopy 30 is installed on the upper surface, whereby the structure 100 is completed.

  According to the present embodiment, it is possible to construct an installation method in which the partition wall 10 is dropped vertically from above the struts 12 with a crane or the like and installed at a predetermined construction position. The joints 20 and 22 and the cast-in-place concrete 28 can be connected easily and firmly. For this reason, the number of man-hours for rebar and formwork assembly required for the construction of the partition wall 10 is greatly reduced, and labor saving and efficiency of the on-site work are achieved. The on-site process of the partition wall 10 is greatly shortened and the construction cost is reduced. can do. Thereby, the structure 100 which has many partition walls 10 and the cell 18 can be constructed | assembled for a short time and low cost. Labor saving and efficiency improvement of on-site work can be achieved, so that the number of workers and management risk can be reduced. Moreover, since the partition wall 10 is precast concrete produced in a factory, quality can be improved and uniformized. For this reason, the quality of the partition wall 10 does not depend on the skill of the worker. Moreover, since it becomes difficult to be influenced by the concrete placement environment, it is possible to reduce the risk of construction failures occurring at the site. Furthermore, since the vertical lap joint from the bottom plate 14 is not required, the safety of field work can be improved. Therefore, according to the present invention, it is possible to cope with a future decrease in the number of skilled workers and to ensure quality and safety in construction in a narrow space.

  Further, in the above embodiment, the loop joints 20 and 22 including the width direction reinforcing bars 20a and 22a and the semicircular arc shaped loop bars 20b and 22b have been described as examples. However, the loop joint of the present invention is limited to this. It is not a thing. The loop reinforcing bars 20a and 22a may be omitted, and a loop joint composed only of semi-arc-shaped loop bars 20b and 22b may be used. The shape of the loop bars 20b and 22b may not be a semi-arc shape, for example, a rectangular shape. . In short, it is only necessary to form a closed region for restraining the cast-in-place concrete 28 when the loop joints are overlapped. In the above-described embodiment, the case where the loop joints 20 and 22 are provided in a one-to-one manner has been described as an example. However, the present invention is not limited to this and may not be in a one-to-one correspondence. .

  Moreover, in the above embodiment, the case where the partition wall 10 is dropped from the upper side between the columns 12 after the column 12 is installed on the bottom plate 14 has been described as an example. It is not limited. For example, it is good also as a system which inserts the partition wall 10 from the side of the support | pillar 12 by making the form of the loop joint 20 protrudingly arranged by the side end surface 10b of the partition wall 10 into another arrangement | positioning. In this case, for example, a pair of width direction reinforcing bars protruding linearly horizontally from the same height of the side end face 10b is provided in the wall thickness direction X, and a wall core axis (vertical axis) is provided between the ends of the width direction reinforcing bars. They are connected by loop arcs (bent portions) that are curved in a semicircular arc and are used as loop joints. Therefore, this loop joint has a structure in which the loop joint 20 is rotated 90 degrees around the horizontal axis along the width direction. A plurality of such loop joints are provided on the side wall 10b, 12b of the partition wall 10 and the column 12 with a space in the vertical direction. However, this loop joint is arranged at a position where it does not interfere with each other when the partition wall 10 and the column 12 are installed close to each other. When installing the partition 10 between the support | pillars 12, what is necessary is just to insert the partition wall 10 not from the side upper part of the support | pillar 12, but from the side of the support | pillar 12, or the diagonal side. By doing so, it is possible to easily install the partition wall 10 between the support columns 12 in such a manner that the loop joints are overlapped in the vertical direction.

  In the above embodiment, the case where the structure 100 according to the present invention is a low-level radioactive waste disposal facility has been described as an example, but the present invention is not limited to this. For example, the structure 100 may be a general underground pit or a pool-like structure, or a building such as an apartment house or an office building. Further, the overall shape of the structure unit 100 may not be a simple rectangular parallelepiped box shape, and may be a structure having various shapes such as a cross shape and a square shape in plan view. In addition, a large number of cells having different vertical and horizontal dimensions may be formed inside the structure 100 using partition walls having various widths.

  In the above embodiment, the case where the reinforcing bar 24 protruding from the lower surface of the column 12 is inserted into the mechanical joint 14b of the bottom plate 14 has been described as an example, but the present invention is not limited to this. It is good also as a structure which provides a mechanical coupling in the lower surface of 12 and inserts the reinforcing bar which protrudes upwards from the baseplate 14. FIG. Moreover, it is good also as a structure which provides a ditch | groove in the upper surface of the baseplate 14, and fits the lower surface of the support | pillar 12 here, and you may use said mechanical coupling together.

  In addition, the case where the lower surface of the partition wall 10 is fitted and disposed in the concave groove 14a on the upper surface of the bottom plate 14 has been described as an example. However, the present invention is not limited to this, for example, either the lower surface of the partition wall 10 or the bottom plate 14 One of them may be provided with a reinforcing bar, and the other may be provided with a mechanical joint to insert the reinforcing bar, or may be used in combination with a method of fitting into the concave groove 14a.

  Further, when the loop joints 20 and 22 having bent portions bent or bent around the axis along the wall thickness direction X are employed, the partition wall 10 is formed from the side of the column 12 if the distance between the loop joints in the vertical direction is sufficiently large. The construction of inserting and dropping the concave groove 14a is also possible.

  As described above, according to the partition wall according to the present invention, it is a partition wall made of a precast wall body, and includes the loop joint protruding from the side end surface of the wall body, so that the partition wall is at a predetermined construction position. It can be easily installed, and after installation, it can be easily and firmly connected to adjacent struts or the like via cast-in-place concrete. For this reason, the number of man-hours for rebar and formwork assembly required for the construction of partition walls is greatly reduced, labor saving and efficiency improvement of on-site work is achieved, and the on-site process of partition walls is greatly shortened to reduce construction costs. Can do. Labor saving and efficiency improvement of on-site work can be achieved, so that the number of workers and management risk can be reduced. Moreover, since the partition wall is precast produced in a factory, quality can be improved and uniformized. For this reason, the quality of the partition wall does not depend on the skill of the worker. Moreover, since it becomes difficult to be influenced by the concrete placement environment, it is possible to reduce the risk of construction failures occurring at the site. Furthermore, since the vertical lap joint from the bottom plate is not required, the safety of field work can be improved.

  Further, according to another partition wall according to the present invention, the loop joint has a bent portion that is curved or bent around an axis along the wall thickness direction, so that the partition wall is dropped vertically from above with a crane or the like. The installation method to install in is possible. In particular, when a partition wall is built right next to a pre-installed support column and then both are connected with cast-in-place concrete, the support column has a loop joint of the same form at a position slightly shifted in the wall thickness direction of the side end face. If the partition wall is dropped in the state of being adjacent to the support column, the loop joints do not interfere with each other, so that the partition wall can be easily positioned adjacent to the support column. For this reason, when installing the partition wall, the loop joint of the partition wall can be arranged so as to overlap with the loop joint of the support in front view.

  Further, according to another partition wall according to the present invention, the loop joint has a bent portion that is curved or bent around an axis along the wall core direction, and therefore the installation method for installing the partition wall at the construction position from the side. Is possible.

  Further, according to the column according to the present invention, the column is a column composed of a precast column that is disposed to face the side wall of the partition wall with a predetermined interval, and protrudes from the column side wall. Since the loop joint that can be engaged with the loop joint of the partition wall is provided via the concrete, it can be easily and firmly connected to the built-up partition wall and the cast-in-place concrete.

  Further, according to the partition wall installation method according to the present invention, the partition wall is installed as described above, and after the above-mentioned support column is installed on the upper surface of the bottom plate, the partition wall loop joint and the post loop Since the partition wall is inserted and arranged from above or from the side of the support column so that the joints overlap with each other, the partition wall can be easily installed at a construction position next to the support column. Moreover, both can be connected by placing concrete in the overlapping loop joint portion.

  Moreover, according to the structure provided with the partition wall which concerns on this invention, since the partition wall mentioned above is provided, the structure which can be constructed in a short period of time and low cost can be provided.

  Moreover, according to the structure provided with the other partition wall which concerns on this invention, since it is a radioactive waste disposal facility, the radioactive waste disposal facility which can be constructed in a short period of time and low cost can be provided.

  Further, according to the construction method of the structure according to the present invention, the above-described structure is constructed, and after the above-mentioned support is installed on the upper surface of the bottom plate, the partition wall loop joint and the support loop The partition wall is inserted and arranged from above or from the side of the support column so that the joints overlap each other, and then concrete is placed between the support column and the side end surface of the partition wall. A structure can be constructed.

  As described above, the partition wall, the support column, the partition wall installation method, the structure including the partition wall, and the construction method of the structure according to the present invention are useful for the construction of a structure including a large number of partition walls arranged in proximity. In particular, it is suitable for constructing a structure such as a low-level radioactive waste disposal facility in a short period of time and at a low cost.

DESCRIPTION OF SYMBOLS 10 Partition wall 10a Wall body 10b Side end surface 10c Concave part 10d Convex part 12 Post 12a Column body 12b Side end surface 12c Lower surface 14 Bottom plate 14a Concave groove 14b Mechanical joint 16 Outer wall 18 Cell 20, 22 Loop joint 20a, 22a Width direction reinforcing bar 20b 22b Loop muscle (bend)
24, 26 Reinforcement 28 Cast-in-place concrete 30 Canopy 100 Structure G Ground X Wall thickness direction Y Column width direction

Claims (8)

A partition wall consisting of precast walls,
A partition wall comprising a loop joint protruding from a side end surface of a wall.   The partition wall according to claim 1, wherein the loop joint has a bent portion that is curved or bent around an axis along the wall thickness direction.   The partition wall according to claim 1, wherein the loop joint has a bent portion that is curved or bent around an axis along the wall core direction. A column composed of precast columns that are arranged to face each other at a predetermined interval from the side end face of the partition wall according to any one of claims 1 to 3,
A strut comprising a loop joint that protrudes from a side end surface of a column body and is engageable with a loop joint of the partition wall via a cast-in-place concrete. A method of installing the partition wall according to any one of claims 1 to 3,
After installing the column according to claim 4 on the upper surface of the bottom plate,
The partition wall installation method, wherein the partition wall is inserted and arranged from above or from the side of the column so that the loop joint of the partition wall and the loop joint of the column overlap each other.   The structure provided with the partition wall characterized by including the partition wall as described in any one of Claims 1-3.   It is a radioactive waste disposal facility, A structure provided with the partition wall of Claim 6 characterized by the above-mentioned. A method for constructing a structure according to claim 6 or 7,
After installing the column according to claim 4 on the upper surface of the bottom plate,
The partition wall is inserted and arranged from above or from the side of the column so that the loop joint of the partition wall and the loop joint of the column overlap each other, and then concrete is placed between the column and the side end surface of the partition wall. A method for constructing a structure, characterized in that it is cast.

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