JP6480315B2 - Panel-like structure - Google Patents

Description

  The present invention relates to a panel-like structure constituting a reinforced concrete structure having a predetermined shape.

  At the time of construction of the reinforced concrete structure, by a panel-like structure comprising a plurality of parallel reinforcing bars along the structural surface formed after placement, and a mesh-like sheet supported by the reinforcing bars and along the structural surface, A technique for forming a mold for forming a concrete structure having a predetermined shape is known. For example, a panel form described in Patent Document 1 that forms a mold for forming an opening in a floor board (slab) by a panel-like structure. Structures are known in the art.

JP 2012-195711 A

  The panel-like structure of the above document can be formed in a slab together with a square mold, so that an opening can be formed in the slab. The length of the panel in the vertical direction depends on the thickness of the slab. Since it is different, it is necessary to prepare a dedicated formwork for each slab thickness, so that there is a problem in versatility and a problem that costs increase.

  In the present invention, in a panel-like structure provided with a plurality of parallel reinforcing bars along the structural surface formed after placement and a mesh-like sheet supported by the reinforcing bars and along the structural surface, the width and thickness An object of the present invention is to provide a panel-like structure that can be applied to concrete structures of different sizes and that can keep the manufacturing cost of the formwork low.

In order to solve the above-mentioned problems, the present invention firstly has a plurality of parallel reinforcing bars 9 along the structural surface formed after placement, and a mesh-like sheet 8 supported by the reinforcing bars 9 and along the structural surface. The sheet 8 is formed with a plurality of insertion portions 11 in the parallel direction through which the reinforcing bars 9 are inserted to support itself, and the insertion portion 11 includes the reinforcing bars. 9 is a support hole 11 drilled so as to pass through the sheet 8 from the front surface to the back surface or from the back surface to the front surface. A plurality of the support holes 11 are formed in the axial direction of the reinforcing bar 9, and the sheet 8 is flexible. It is characterized by being configured to be deformable .

Secondly, the support hole 11 is characterized in that the reinforcing bar 9 inserted from the front surface to the back surface and the reinforcing bar 9 inserted from the back surface to the front surface are supported in a vertically adjacent state.

Thirdly, in a panel-like structure including a plurality of parallel reinforcing bars 9 along the structural surface formed after placement, and a mesh-like sheet 8 supported by the reinforcing bars 9 and along the structural surface, The sheet 8 is formed with a plurality of insertion portions 11 for inserting the reinforcing bars 9 and supporting the reinforcing bars 9 in the vertical direction, and the reinforcing bars 9 are arranged in the vertical direction. It is a cylindrical part or an annular part protrudingly formed on the front surface or the back surface, and the cylindrical part or the annular part is a belt-like or string-like shape in which both ends are attached to the front surface or the back surface of the sheet 8. The support 30 is detachably provided on the front surface or the back surface of the sheet 8 .

4thly , the said insertion part 11 was provided in the surface and the back surface, respectively, of the sheet | seat, It is characterized by the above-mentioned.

Fifth, a plurality of the insertion portions 11 are formed in the axial direction of the reinforcing bars 9 to form a support row, and a plurality of the support rows are provided in the parallel direction.

Sixth, the panel structure is combined to form the floor surface 3, the opening 4 formed in the floor surface 3, or the formwork unit 1 forming the wall surface.

  By forming a plurality of insertion portions supporting the reinforcing bars provided on the sheet side in the parallel direction of the reinforcing bars, by appropriately changing the insertion portions through which the reinforcing bars are inserted, the width and number of reinforcing bars provided in the parallel direction Therefore, even when a structural surface (concrete structure) having a different width or thickness is formed, it can be handled without manufacturing a dedicated sheet or reinforcing bar. Therefore, the manufacturing cost of the panel-like structure used as a formwork at the time of forming a concrete structure can be suppressed low.

  Further, in a panel-like structure including a plurality of parallel reinforcing bars along the structural surface formed after placement, and a mesh-like sheet supported by the reinforcing bars and along the structural surface, the sheet includes the above-mentioned In addition to providing an insertion part that inserts a reinforcing bar to support itself, and according to what is configured to be flexibly deformable, the width and thickness of the structural surface formed by bending and deforming the sheet in the parallel direction of the reinforcing bar The height can be adjusted without using a dedicated product.

Further, the insertion portion is a support hole drilled so as to allow the rebar to be inserted from the front surface to the back surface or from the back surface to the front surface, and a plurality of the support holes are formed in the axial direction of the rebar, According to the sheet that is configured to be flexible and deformable , no additional member is used for forming the insertion portion, so that the cost can be reduced and the rebar is supported through the insertion holes formed in the axial direction. Therefore, the reinforcing bars can be supported easily and stably.

  In addition, according to what the said insertion part is a cylindrical part or annular part protrudingly formed in the surface or back surface of a sheet | seat, since it becomes easy to insert a reinforcing bar into the insertion part side, the attachment or detachment of the sheet | seat to the reinforcing bar side is possible. It becomes easy.

  Further, according to the support hole that supports the reinforcing bar inserted from the front surface to the back surface and the reinforcing bar inserted from the back surface to the front surface in the state of being adjacent vertically, the sheet is bent in a wave shape to reinforce the reinforcing bar. In inserting through the support hole, the bending state of the sheet can be further reduced.

  Further, according to the cylindrical portion or the annular portion formed by the front surface or the back surface of the sheet and the belt-like or string-like support body having both ends attached to the front surface or the back surface, the reinforcing bar is inserted. The cylindrical part or the annular part can be easily configured at low cost.

  In addition, according to what provided the said support body in the surface or back surface of the sheet | seat so that attachment or detachment was possible, since an insertion can be provided only in the location which penetrates a reinforcing bar, a member can be utilized more efficiently.

  In addition, according to the present invention, a plurality of the insertion portions are formed in the axial direction of the reinforcing bars to form a support row, and a plurality of the supporting rows are provided in the parallel direction, the sheet is stably supported on the reinforcing bar side. The arrangement of the reinforcing bars with respect to the sheet and the number of reinforcing bars can be easily changed.

  Moreover, according to what forms the form which forms the floor surface, the opening part formed in this floor surface, and a wall surface combining the said panel-like structure, it becomes applicable to various concrete structures. Therefore, the versatility is high and the cost for manufacturing the mold can be kept low.

(A) is a principal part top view which shows the formwork unit of the state which formed the opening part, (B) and (C) are principal part side views of a formwork unit. It is a principal part top view of the slab which shows the formwork unit of the state which embeded the opening part. It is the principal part perspective view which showed the formwork unit. It is the front view which showed the panel-like structure. It is AA sectional drawing of a panel-like structure. (A) And (B) is BB sectional drawing which showed the structure which adjusts the width | variety of a panel-like structure. (A) And (B) is the perspective view and side view which showed another Example of the panel-like structure.

  Hereinafter, an embodiment of the panel-like structure of the present invention will be described with reference to FIGS. 1 to 3. 1A is a plan view of a main part of the mold unit in a state where an opening is formed, and FIGS. 1B and 1C are side views of the main part of the mold unit. These are the principal part top views of the slab which show the formwork unit of the state which embed | buried the opening part, and FIG. 3 is the principal part perspective view which showed the formwork unit.

  The illustrated formwork unit 1 is configured by combining a plurality of panel-like structures 2, and the formwork unit 1 is transported to a floor panel (slab) 3 of a reinforced concrete structure during transportation of members and the like. The so-called “dwelling hole” (hereinafter referred to as opening 4) used in the above is formed. The formwork unit 1 is buried in concrete with the opening 4 after completion of the work (see FIG. 2).

  The formwork unit 1 is provided in a rectangular shape so as to be slidable on the plurality of panel-like structures 2 (four in the illustrated example) that form the openings 4 and on the openings. The reinforcing reinforcing slide slide reinforcing bars 6 are disposed between the slab reinforcing bars 7 provided in a lattice shape at the upper and lower positions in the floor board 3 (see FIGS. 1 and 2). At this time, the slab reinforcing bar 7 is removed so that the floor board 3 communicates vertically in a place where the opening 4 is formed.

  The panel-like structure 2 includes a sheet body (sheet) 8 that dams the placed concrete along the opening 4 to form a structural surface, and an anchor rebar (rebar) 9 that is attached to the sheet body 8. The anchor rebar 9 includes an insertion portion 11 for inserting and supporting the sheet body 8, and is configured to be used as a mold for making the placed concrete into a predetermined shape. The body 2 is configured to adjust the installation width of the anchor reinforcing bars 9 in the parallel direction so that the opening 4 can be formed even on floors having different thicknesses. A method for adjusting the width will be described later.

  In the illustrated example, the panel-like structure 2 includes a pair of first panel-like structures 2A and 2A that form the longitudinal direction of the opening 4 and a pair of second panel-like structures 2B that form the short direction. , 2B are combined in a rectangular shape to form the mold unit 1 that forms the opening 4 in the floor board 3.

  The anchor rebar 9 supports the sheet body 8 via the insertion portion 11 provided along the sheet body 8. Further, the main anchor reinforcing bar 12 having a diameter larger than that of the anchor reinforcing bar 9 is disposed so as to connect the opposing panel-like structural bodies 2 and 2, thereby connecting and positioning the panel-like structural body 2. At the same time, the main anchor reinforcing bars 12 are arranged in a rectangular shape in plan view along the opening 4 formed by the sheet body 8.

  The anchor reinforcing bars 9 are supported on the sheet body 8 side by one set of two, and in the example shown in the figure, four sets (total of eight) anchor reinforcing bars 9 are provided in the width direction of the sheet body 8. Yes. At this time, the upper two sets and the lower two sets of anchor reinforcing bars 9 are connected to each other by the connecting rod 14, and the sheet body 8 (panel-like structure 2) is configured to be more stable. In addition to the anchor reinforcing bars 9 and the main anchor reinforcing bars 12, reinforcing reinforcing bars may be provided on the sheet body 8 side (see FIGS. 1 and 3).

  The sheet body 8 is formed in a square shape that can be deformed flexibly, and is formed in a fine mesh shape that can dam concrete. In this embodiment, resin is used, but the material is not limited to this. Further, the sheet body 8 is long so that the width direction (in the illustrated example, the thickness direction of the floor board 3) has a length corresponding to a plurality of floor board thicknesses.

  The insertion portion 11 supports the anchor rebar 9 along the extending (left and right) direction of the sheet body 8 and also extends in the width (up and down) direction so that a plurality of the anchor rebar 9 can be inserted and supported in the parallel direction. A plurality are provided side by side. A specific configuration of the insertion portion 11 will be described later.

  The slide rebar 6 is bent at both ends in a J-shape and locked to the main anchor rebar 12 side, thereby allowing a plurality of slide rebars 6 to slide between the pair of main anchor rebars 12 (in the illustrated example, the longitudinal direction). 4 and 1 in the short direction). According to this configuration, in the state in which the opening 4 is formed in the floor board 3 by the rectangular form unit 1, the opening 4 is opened by sliding the slide rebar 6 to the end of the opening 4, and the slide rebar By sliding the 6 on the opening 4, the reinforcing bars can be easily disposed in the opening 4.

  According to the formwork unit 1 having the above-described configuration, the panel-like structures 2, 2, 2 installed in a rectangular shape are installed at locations where the openings 4 used during the construction are formed before being placed on the floor board 3. , 2 is a form for forming the opening 4. When concrete is placed on the floor board after the mold unit 1 is installed, the anchor rebars 9 and 12 protruding outside the opening 4 are combined with the concrete on the floor board side, so that the entire mold unit 1 is firmly attached to the floor board 3. Integrated into

  Thereby, the opening part 4 used as the concavity hole for construction is formed inside the frame of the panel-shaped structure 2 arrange | positioned at a rectangular shape (refer FIG. 1). When the opening 4 is necessary for the construction, the slide rebar 6 is slid to the end of the opening 4 to secure a construction hole, and when the opening 4 is not used, the opening 4 is not shown. The opening 4 can be closed by the lid.

  Subsequently, when the construction is finished and the opening 4 is embedded with concrete, by sliding the slide rebars so that they are arranged at equal intervals on the opening 4 in plan view, the concrete is placed, A plurality of reinforcing slide reinforcing bars can be embedded in the landfill portion of the opening. Thereby, after completion of construction, it is possible to fill the opening 4 while ensuring sufficient strength (see FIG. 2).

  Furthermore, according to the above-mentioned formwork unit 1, not only can the opening 4 be formed and the opening 4 can be reinforced smoothly at the time of landfilling, but the entire formwork unit 1 can be used for reinforcement after the completion of construction. Since it is embedded in the floor board 3 as a member, dust is not taken out, and the labor and cost for disposal of the member used in connection with formation and embedding of the opening 4 can be suppressed.

  Next, based on FIG. 4 thru | or FIG. 6, the adjustment method of the installation width | variety of the anchor reinforcement in the said panel-like structure is demonstrated concretely. FIG. 4 is a front view showing the panel-like structure, and FIG. 5 is a cross-sectional view taken along the line AA of the panel-like structure. The panel-like structure 2 can change the installation width in the vertical direction in which the anchor reinforcing bar 9 is arranged by changing the support position of the anchor reinforcing bar 9 inserted and supported by the insertion part 11. A specific configuration will be described below.

  As shown in FIGS. 4 and 5, the insertion portion 11 includes a plurality of support holes 11 that are formed in the sheet body 8 that can be deformed flexibly along the axial direction of the anchor reinforcing bar 9. Yes. That is, by bending the sheet body 8 and inserting the anchor rebar 9 into the support hole 11, the anchor rebar 9 can be supported on the sheet body 8 (the anchor rebar 9 is supported on the sheet body 8 side).

  Specifically, the support holes 11 formed side by side in the axial direction are provided so that a plurality of pairs of support holes 11 that are formed relatively close to each other are arranged (in the illustrated example, a pair of support holes 11 is formed). 5 support holes are formed), thereby forming a support row for supporting one anchor rebar 9.

  Further, a plurality of the support rows formed in the axial direction of the anchor reinforcing bars 9 are also formed side by side in the parallel direction of the anchor reinforcing bars 9. That is, the support rows are arranged in a plurality of rows from the upper part to the lower part of the sheet body 8 (see FIG. 4).

  Thereby, the said anchor reinforcing bar 9 is comprised so that the support position of the anchor reinforcing bar 9 with respect to the sheet | seat body 8 can be adjusted and changed by changing the insertion hole (support row | line | column) 11 to be used. That is, the distance between the upper end anchor reinforcing bar 9 and the lower end anchor reinforcing bar 9 provided on the sheet body 8 side can be changed within the width of the sheet body 8 (the range in which the insertion hole 11 is provided).

  Further, according to the support hole 11 (support row), the anchor rebar 9 inserted and supported along the support row is inserted into the pair of support holes 11 and 11 when the anchor rebar 9 is inserted. The support hole 11 on the side is inserted from the front surface of the sheet body to the back surface (or the back surface to the front surface), and then the reinforcing bar 11 is inserted into the support hole 11 on the other side from the back surface of the sheet body 8 to the front surface (or the front surface to the back surface). In this manner, the insertion hole 11 is inserted and supported (see FIGS. 4 and 5). In other words, the anchor rebar 9 is supported on the sheet body 8 side by being knitted into a support row on the sheet body 8 side that can be deformed flexibly.

  According to the support hole 11 having such a configuration, the vertical width of the anchor reinforcing bar 9 on which the sheet body 8 is supported can be easily changed by changing the support row through which the two sub-anchor reinforcing bars 9 are inserted and supported. Therefore, even when the opening 4 is formed by using the formwork unit 1 at a place where the thickness (slab thickness) of the floor board 3 is different using the panel-like structure 2, the dedicated structure corresponding to the difference in the slab thickness is used. It is not necessary to prepare the panel-like structure 2, and the thickness direction of the mold unit 1 can be adjusted by changing the support position of the anchor reinforcing bar 9.

  In addition, the insertion portion 11 is made of a flexible material for the sheet body 8 and is configured by a support hole 11 drilled in the sheet body 8, thereby separately providing an anchor reinforcing bar 9 on the sheet body 8 side. Since there is no need to use a member, manufacturing costs can be kept low.

  Further, as shown in FIG. 4, the anchor reinforcing bars 9 are inserted and supported in pairs in the support holes 11 of the sheet body 8, and the pair of upper and lower anchor reinforcing bars 9 and 9 are inserted through the shaft. A pair of support holes 11 and 11 in the center direction are alternately used.

  More specifically, in the example shown in the drawing, the anchor reinforcing bar 9 on one side of the pair of anchor reinforcing bars is a pair of support holes 11 located on both sides and in the center (1, 3, 5 sets). 11, and the other side anchor reinforcing bar 9 is inserted into a pair of support holes 11, 11 positioned between them (second and fourth sets). Further, when the pair of upper and lower anchor reinforcing bars 9 and 9 are inserted through the pair of support holes 11 and 11, the upper and lower arrangements are inserted so that the front and back are reversed.

  According to this structure, since the flexible sheet | seat body 8 can form a more stable surface by inserting a pair of anchor reinforcing bars 9 and 9 in a some support row | line, it can stabilize concrete at the time of placement. And can be used to smoothly form the structural surface of the concrete.

  Next, based on FIG. 6, the structure different from the above-mentioned example is demonstrated about the adjustment mechanism of the said panel-like structure. 6A and 6B are cross-sectional views taken along the line B-B showing the configuration for adjusting the width of the panel-like structure. The panel-like structure 2 can adjust the installation width in the vertical direction in which the anchor reinforcing bars 9 are arranged by bending and deforming a part of the sheet body 8 that can be flexibly deformed. This will be described below.

  As shown in the figure, the sheet body 8 has a vertical width reduced by bending a bent portion 8a on the center side in the vertical direction, and a distance X between the anchor reinforcing bars 9 located between the bent portions is shortened. can do. Specifically, the anchor reinforcing bars 9 that are inserted and supported by one set of two pieces are connected to each other by two connecting rods 14 in the vertical direction, and the anchor reinforcing bars 9 in the central portion that are not connected by the connecting rod 14 are arranged. The distance X can be adjusted by bending the sheet body 8 itself.

  With this configuration, the panel-like structure 2 can adjust the width in the parallel direction (vertical direction) of the anchor reinforcing bars 9 without changing the support position of the anchor reinforcing bars 9. Incidentally, when the vertical width of the panel-like structure 2 is adjusted by this configuration, the sheet body 8 may be configured using a support hole 11 that is formed only at a predetermined location.

  Incidentally, when the distance X between the anchor reinforcing bars is formed to be larger than a predetermined distance, the sheet body 8 is provided with the reinforcing anchor reinforcing bars 10 that correspond to the side pressure from the structural surface of the concrete to be formed. 8a (see FIG. 6A). Further, the number of anchor reinforcing bars 9 arranged in the width direction of the sheet body 8 can also be changed according to the application.

  Next, a different point from the above-mentioned example is demonstrated about another Example of the said panel-like structure based on FIG. 7A and 7B are a perspective view and a side view showing another embodiment of the panel-like structure. The panel-like structure 2 is provided with a belt-like support body 30 on both surfaces of the sheet body 8, so that a tubular portion (an anchor rebar can be inserted between the support body 30 and the sheet body 8 ( Annular part) is formed.

  A plurality of the support bodies 30 are provided along the axial direction of the anchor reinforcing bars 9 and are also arranged side by side in the parallel direction of the anchor reinforcing bars, thereby changing and adjusting the support position of the anchor reinforcing bars 9 with respect to the sheet body 8. Can do.

  Specifically, the support bodies 30 arranged side by side in the parallel direction are configured such that the support bodies 30 adjacent in the width (up and down) direction are alternately arranged on the front surface and the back surface. A pair of anchor reinforcing bars 9 are attached to the sheet body 8 side so as to sandwich the sheet body 8 (see FIG. 7). Thereby, since the sheet body 8 that dams the concrete is more stably held, the structural surface of the concrete is more stably formed.

  The support body 30 may be formed over the longitudinal direction of the sheet body 8 so that one anchor reinforcing bar 9 is held by the single support body 30. Further, the support 30 is configured to be detachable from the sheet body 8 side using a button, a hook-and-loop fastener, or the like, so that it can be attached only to a necessary portion of the anchor reinforcing bar 9 according to the concrete structure to be formed. It may be configured.

3 Floor 4 Opening 8 Sheet (Sheet)
9 Anchor reinforcement (rebar)
11 Insertion part, support hole 30 Support body

Claims (6)

A plurality of parallel rebars (9) along the structural surface formed after placement;
In a panel-like structure provided with the mesh-like sheet (8) supported by the reinforcing bar (9) and along the structural surface,
In the sheet (8), a plurality of insertion portions (11) for inserting the rebar (9) and supporting itself are formed in the parallel direction ,
The said insertion part (11) is a support hole (11) drilled so that the said reinforcing bar (9) may be penetrated from the surface of the said sheet | seat (8) to a back surface or a back surface, and this support hole (11) Are formed in the axial direction of the rebar (9),
The panel (8) is a panel-like structure configured to be deformable flexibly . 2. The panel according to claim 1, wherein the support hole (11) supports the reinforcing bar (9) inserted from the front surface to the back surface and the reinforcing bar (9) inserted from the back surface to the front surface so as to be adjacent to each other in the vertical direction. Structure. A plurality of parallel rebars (9) along the structural surface formed after placement;
In a panel-like structure provided with the mesh-like sheet (8) supported by the reinforcing bar (9) and along the structural surface,
In the sheet (8), a plurality of insertion portions (11) for inserting and supporting the reinforcing bars (9) are arranged in the vertical direction, and the reinforcing bars (9) are arranged vertically.
The insertion part (11) is a cylindrical part or an annular part protrudingly formed on the front or back surface of the sheet (8),
The cylindrical portion or the annular portion is formed by the front or back surface of the sheet (8) and a belt-like or string-like support (30) having both ends attached to the front or back surface,
The said support body (30) was provided in the surface or back surface of the sheet | seat (8) so that attachment or detachment was possible.
Panel-like structure.   The said insertion part (11) was each provided in the surface and back surface of the sheet | seat
  The panel-like structure according to claim 3. The panel shape according to any one of claims 1 to 4 , wherein a plurality of the insertion portions (11) are formed in the axial direction of the reinforcing bars (9) to form a support row, and a plurality of the support rows are provided in the parallel direction. Structure. Combining the panel-like structure, the floor (3), an opening formed in the floor surface (3) in (4) or, claim constitute a mold unit to form a wall (1) 1 to 5 A panel-like structure according to any one of the above.

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