Formwork panels, formwork structures, and formwork erection structures

Abstract

The present invention provides a formwork panel, formwork structure, and formwork erection structure that offer high workability for attaching weir plate members to support members. [Solution] The formwork panel 20 includes a rectangular weir plate member 21 and a support member 25 that holds the weir plate member 21. The support member 25 includes an enclosure member 27 that surrounds the four perimeter end faces 23, 24 of the weir plate member 21, and contact members 35, 36 that are connected to the inside of the enclosure member 27 and abut against the surface of the weir plate member 21. The support member 25 has a first connection hole 37 and a second connection hole 38 which are used when bolting adjacent enclosure members 27 together, bolting to flooring materials, and bolting enclosure members 27 together via corner connecting members.

Description

Technical Field

[0001] The present disclosure relates to a formwork panel, a formwork structure connecting the formwork panels, and a formwork erection structure for standing the formwork panel on a floor material.

Background Art

[0002] When constructing a structure using a cement composition such as concrete, a placement space for placing the cement composition is formed by a formwork. As a method for forming such a formwork, for example, Patent Document 1 discloses forming a formwork by connecting a plurality of formwork panels. The formwork panel of Patent Document 1 is composed of a support member that is a panel body and a weir plate member that is a plate-shaped replacement panel attached to the support member. The support member has a bottom surface portion facing the weir plate member and rising flanges erected from each of the four sides of the bottom surface portion to the opposite side of the weir plate member.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in Patent Document 1, when attaching the weir plate member to the bottom surface portion of the support member, it is necessary to perform alignment so that the weir plate member does not protrude from each of the four sides of the bottom surface portion. Therefore, due to the high accuracy required for aligning the support member and the weir plate member, it cannot be said that the attachment workability of the weir plate member is high.

Means for Solving the Problems

[0005] A formwork panel that solves the above problems has a support member that holds a rectangular weir plate member. The support member has a fencing member that surrounds the four perimeter end faces of the weir plate member, and a contact member that is connected to the inside of the fencing member and abuts against the surface of the weir plate member.

[0006] According to the above configuration, the four perimeter ends of the weir plate member are surrounded by enclosure members, and contact members are provided inside the enclosure members. Therefore, when attaching the weir plate member to the support member, the weir plate member can be fitted into the support member. As a result, the alignment of the weir plate member and the support member can be easily performed, thereby improving the workability of attaching the weir plate member to the support member.

[0007] A formwork structure that solves the above problems is constructed by connecting a plurality of formwork panels in a direction perpendicular to the plane of the formwork panels. The formwork panels have support members that hold a rectangular weir plate member. The support members have a fencing member that surrounds the four perimeter end faces of the weir plate member, and a contact member that is connected to the inside of the fencing member and abuts against the surface of the weir plate member. In the formwork structure, adjacent fencing members are joined together in the direction perpendicular to the plane.

[0008] According to the above configuration, adjacent enclosure members are joined together in the direction perpendicular to the plane. This eliminates the need for auxiliary members to sandwich adjacent enclosure members. As a result, it is possible to improve the ease of attaching the weir plate members to the support members while also improving the ease of connecting adjacent formwork panels in the direction perpendicular to the plane.

[0009] A formwork structure that solves the above problems is constructed by connecting multiple formwork panels. The formwork panel has a support member that holds a rectangular weir plate member. The support member has an enclosure member that surrounds the four perimeter end faces of the weir plate member, and a contact member that is connected to the inside of the enclosure member and abuts against the surface of the weir plate member. The formwork structure has a corner connecting member that joins adjacent enclosure members at an angle.

[0010] According to the above configuration, it is possible to connect adjacent formwork panels at an angle while improving the workability of attaching the formwork plate members to the support members. A formwork erection structure that solves the above problems is one in which formwork panels are erected on a floor material. The formwork panels have support members that hold planar rectangular weir board members. The support members have a fencing member that surrounds the four perimeter end faces of the weir board member, and a contact member that is connected to the inside of the fencing member and abuts against the surface of the weir board member. In the formwork erection structure, the floor material and the fencing member are joined together.

[0011] According to the above configuration, the ease of attaching the formwork plate member to the support member is improved, while the formwork panel that abuts against the floor material can be connected to the floor material. In the above-described formwork panel, it is preferable that the weir plate member and the support member are configured to be detachable.

[0012] According to the above configuration, for example, weir plate members that have deteriorated over time can be replaced with new weir plate members. As a result, since the support members can be reused, the cost of formwork panels and, consequently, the cost of formwork can be reduced.

[0013] In the above-described formwork panel, it is preferable that the height of the enclosure material is equal to the sum of the height of the weir plate member and the height of the contact material. According to the above configuration, it is possible to make one end face of the enclosure material flush with the surface of the weir board member while increasing the rigidity of the enclosure material. [Brief explanation of the drawing]

[0014] [Figure 1] Figure 1 is a perspective view showing a schematic configuration of an example of formwork formed by connecting multiple formwork panels of one embodiment. [Figure 2] Figure 2 is a perspective view showing a schematic configuration of one embodiment of a formwork panel. [Figure 3] Figure 3 is a cross-sectional view showing a schematic configuration of one embodiment of a formwork panel. [Figure 4] Figure 4 is a perspective view showing a schematic configuration of one embodiment of a formwork erection structure. [Figure 5] FIG. 5 is a perspective view showing a schematic configuration of an embodiment of a formwork structure in which formwork panels are connected in the in-plane perpendicular direction. [Figure 6] FIG. 6 is a perspective view showing a schematic configuration of an embodiment of a formwork structure in which formwork panels are connected at an angle. [Figure 7] FIG. 7 is a perspective view showing an example of a corner connecting member. [Figure 8] FIG. 8 is a cross-sectional view showing a schematic configuration of an example of a connection portion of a formwork panel using a corner connecting member.

MODE FOR CARRYING OUT THE INVENTION

[0015] Referring to FIGS. 1 to 8, an embodiment of a formwork panel, a formwork structure, and a formwork erection structure will be described. As shown in FIG. 1, the formwork 10 is constituted by connecting a plurality of formwork panels 20. The formwork 10 is erected, for example, on a floor material 11 made of reinforced concrete. The formwork 10 is a space surrounded by a plurality of formwork panels 20 and forms a placement space 13 for placing a cement composition such as concrete. The formwork panel 20 has a retaining plate member 21 and a supporting member 25.

[0016] As shown in FIG. 2, the retaining plate member 21 is a planar rectangular plate-shaped member that partitions the placement space 13. The retaining plate member 21 may be a square plate or a rectangular plate. The retaining plate member 21 may be a wooden plate or a resin plate.

[0017] The weir plate member 21 has a partition surface 21a which is a surface partitioning the placement space 13 and a mounting surface 21b which is a surface on the opposite side of the partition surface 21a. The surface directions of the partition surface 21a and the mounting surface 21b, that is, the surface direction of the weir plate member 21, are the in-plane perpendicular direction of the formwork panel 20. The weir plate member 21 has a pair of first small-mouth surfaces 23 extending in the first direction X and a pair of second small-mouth surfaces 24 extending in the second direction Y. The first direction X is one direction in the in-plane perpendicular direction, and the second direction Y is a direction perpendicular to the first direction X in the in-plane perpendicular direction. The third direction Z perpendicular to the first direction X and the second direction Y is the height direction of the formwork panel 20.

[0018] The weir plate member 21 is detachably attached to the support member 25. The weir plate member 21 is attached to the support member 25 so that the small-mouth surfaces 23 and 24 around the perimeter are surrounded. The weir plate member 21 may be attached to the support member 25 by fitting, or may be attached to the support member 25 by fitting and pasting. The support member 25 supports the weir plate member 21 that receives the load of the cement composition placed in the placement space 13.

[0019] The support member 25 has a surrounding member 27 and contact members 35 and 36. The surrounding member 27 is formed in a rectangular frame shape that surrounds the small-mouth surfaces 23 and 24 around the perimeter of the weir plate member 21 and has a surrounding member height H. The surrounding member height H is the dimensional value of the surrounding member 27 in the third direction Z and is the height of the formwork panel 20. The surrounding member 27 has a pair of first members 31 and a pair of second members 32. The first member 31 and the second member 32 are composed of plate-shaped steel materials having the same width. By the first member 31 and the second member 32 being plate-shaped steel materials, the weight reduction of the surrounding member 27 can be achieved. The width of the first member 31 and the second member 32 is the surrounding member height H. The first member 31 and the second member 32 are arranged such that the third direction Z, that is, the height direction of the formwork panel 20, is the width direction.

[0020] A pair of first members 31 extend in a first direction X and are positioned opposite each other in a second direction Y. A pair of second members 32 extend in a second direction Y and are positioned opposite each other in a first direction X. The first members 31 and the second members 32 are connected by a joining method such as welding. The pair of first members 31 connect the ends of the pair of second members 32. The pair of second members 32 connect the ends of the pair of first members 31. The first members 31 and the second members 32 may be the same length or different lengths, depending on the shape of the weir plate member 21.

[0021] The contact members 35 and 36 are connected to the enclosure member 27 on the inside of the enclosure member 27. The abutment member 35 is an end abutment member that extends in a first direction X and connects the ends of a pair of second members 32. The abutment member 35 is provided adjacent to the first member 31 from the inside of the enclosure member 27. The abutment member 35 is connected to the enclosure member 27 by a joining method such as welding. The abutment member 35 is connected to at least the second member 32 of the first member 31 and the second member 32. The abutment member 35 has a strip-shaped end abutment surface 35a that abuts against the mounting surface 21b of the weir plate member 21. The abutment member 35 can be made of a steel material capable of forming the end abutment surface 35a, such as a channel material or an angle material.

[0022] The abutment member 35 in this embodiment is a channel member having a pair of side portions and a bottom portion connecting the pair of side portions. The abutment member 35 is provided such that the width direction of the bottom portion extends in the third direction Z, and the bottom portion abuts against the first member 31. The abutment member 35 is provided such that an opening portion faces the center of the enclosure member 27 in the second direction Y.

[0023] The abutment member 36 is an intermediate abutment member that extends in a first direction X between the end abutment members 35 and connects a pair of second members 32. The abutment member 36 is connected to the second members 32 by a joining method such as welding. The abutment member 36 has a strip-shaped intermediate abutment surface 36a that abuts against the mounting surface 21b of the weir plate member 21. The abutment member 36 can be made of a steel material capable of forming the intermediate abutment surface 36a, such as a channel material or an angle material. There may be one abutment member 36 or two or more. The number of abutment members 36 is provided according to the load that the weir plate member 21 receives when the cement composition is poured into the pouring space 13, for example.

[0024] The contact material 36 in this embodiment is provided to divide the area between the pair of contact materials 35 into three equal parts. The contact material 36 is a channel material having a pair of side portions and a bottom portion connecting the pair of side portions. The contact material 36 is provided such that the width direction of the bottom portion extends in the third direction Z, and that the opening portion faces the center of the enclosure material 27 in the second direction Y.

[0025] As shown in Figure 3, the contact members 35 and 36 are positioned such that their contact surfaces 35a and 36a are separated from one end surface 27a of the enclosure member 27 by the thickness (height) t of the weir plate member 21. In other words, when the weir plate member 21 is attached to the support member 25, the contact members 35 and 36 are positioned so that the section surface 21a of the weir plate member 21 and one end surface 27a of the enclosure member 27 are flush.

[0026] The contact members 35 and 36 are provided such that the surfaces opposite to the contact surfaces 35a and 36a are flush with the other end surface 27b of the enclosure member 27. In other words, the contact members 35 and 36 are formed such that the contact member height h is obtained by subtracting the thickness t of the weir plate member 21 from the enclosure member height H. In other words, the contact members 35 and 36 are formed such that the enclosure member height H is equal to the sum of the thickness t of the weir plate member 21 and the contact member height h. This allows the enclosure member 27 and the contact members 35 and 36 to be joined at more joint points. As a result, the enclosure member 27 and the contact members 35 and 36 can be joined with higher joint strength. Furthermore, because the contact members 35 and 36 are channel members, more joint points can be made with the enclosure member 27 than if the contact members were angle members.

[0027] As shown in Figure 2, the support member 25 has a first connection hole 37 and a second connection hole 38. The first connection hole 37 is provided so as to penetrate the first material 31 and the abutment material 35. The first connection holes 37 are provided so as to be aligned in the first direction X at a predetermined pitch, with the central position in the first direction X as the reference position. The first connection holes 37 are used to connect adjacent formwork panels 20.

[0028] The second connecting holes 38 are provided so as to penetrate the second material 32. The second connecting holes 38 are provided so as to be aligned in the second direction Y at a predetermined pitch, with the central position in the second direction Y as the reference position. The second connecting holes 38 are provided between abutment material 35 and abutment material 36, and between abutment material 36 themselves. The second connecting holes 38 are used for connecting adjacent formwork panels 20 as well as for connecting to floor material 11.

[0029] (Formwork erection structure) Referring to Figure 4, we will now describe a formwork erection structure in which formwork panels 20 are erected on the floor material 11. Here, we will describe the formwork erection structure using the case where the floor material 11 is made of reinforced concrete as an example.

[0030] In the formwork erection structure, the formwork panel 20 is connected to the floor material 11 by bolt connections. The formwork panel 20 is connected to the floor material 11 such that the first direction X is vertical, that is, the contact members 35 and 36 extend in the vertical direction.

[0031] In the formwork erection structure, first, post-installed anchors 41 are installed on the floor material 11. The post-installed anchors 41 are installed at positions corresponding to the second connection holes 38 of the formwork panel 20. After aligning the positions of the post-installed anchors 41 and the second connection holes 38 of the formwork panel 20, bolts 42 that pass through the second connection holes 38 are fastened to the post-installed anchors 41. As a result, the formwork panel 20 is connected to the floor material 11 so that it stands upright.

[0032] In Figure 4, the weir plate member 21 is attached to the support member 25 before it is connected to the floor material 11. However, the weir plate member 21 may also be attached to the support member 25 that is connected to the floor material 11.

[0033] (Formwork structure) Referring to Figure 5, a formwork structure in which formwork panels 20 are connected in a perpendicular direction within the plane will be described. In the formwork structure shown in Figure 5, formwork panel 20A and formwork panel 20B are connected in a second direction Y, and formwork panel 20A and formwork panel 20C are connected in a first direction X. When the formwork structure constitutes a wall section extending in the vertical direction, each formwork panel 20A, 20B, and 20C is connected such that the first direction X extends vertically, that is, the first member 31 and the abutment members 35 and 36 extend vertically.

[0034] When connecting formwork panel 20A and formwork panel 20B in the second direction Y, the positions of their first connection holes 37 (see Figure 2) are aligned, and then the first members 31 are fastened together using bolts 46 that pass through both first connection holes 37 and nuts 47 that are screwed onto the bolts 46. In other words, the formwork panel 20A and formwork panel 20B are connected in the second direction Y by bolting together adjacent enclosure members 27 in the second direction Y.

[0035] When connecting formwork panel 20A and formwork panel 20C in the first direction X, the positions of the second connection holes 38 of each are aligned, and then the second members 32 are fastened together using bolts 51 that pass through both second connection holes 38 and nuts 52 that are screwed onto the bolts 51. In other words, the formwork panel 20A and formwork panel 20C are connected in the first direction X by bolting together adjacent enclosure members 27 in the first direction X.

[0036] In Figure 5, the weir plate member 21 is attached to the support member 25 before the formwork panels 20A, 20B, and 20C are connected to each other. However, the weir plate member 21 may also be attached after the support members 25 of the formwork panels 20A, 20B, and 20C are connected to each other.

[0037] Referring to Figures 6 to 8, an example of a formwork structure in which adjacent formwork panels 20 with corners are connected will be described. In the formwork structure shown in Figure 6, formwork panel 20A and formwork panel 20B are connected such that they bend at a bending angle θ when viewed from a first direction X in a plan view. Formwork panel 20A and formwork panel 20B are connected via a corner connecting member 55.

[0038] As shown in Figure 7, the corner connecting member 55 can be made of a steel material, such as an angle material, that extends in the first direction X and has a bent cross section corresponding to the bending angle θ. For example, if the bending angle θ is 90°, the bending angle of the corner connecting member 55 is 90°. Also, for example, if the bending angle θ is 120°, the bending angle of the corner connecting member 55 is 60°.

[0039] The corner connecting member 55 has a first corner connecting hole 56 formed in a position corresponding to the first connecting hole 37 of the formwork panel 20A. In addition, the corner connecting member 55 has a second corner connecting hole 57 formed in a position corresponding to the first connecting hole 37 of the formwork panel 20B.

[0040] As shown in Figure 8, when connecting the formwork panel 20A and the corner connector 55, the first connection hole 37 of the formwork panel 20A and the first corner connection hole 56 of the corner connector 55 are aligned. Then, the first member 31 of the formwork panel 20A and the corner connector 55 are fastened together using a bolt 58 that passes through the first connection hole 37 and the first corner connection hole 56, and a nut 59 that is screwed onto the bolt 58. This connects the formwork panel 20A and the corner connector 55.

[0041] When connecting the formwork panel 20B and the corner connector 55, the first connection hole 37 of the formwork panel 20B and the second corner connection hole 57 of the corner connector 55 are aligned. Then, the first member 31 of the formwork panel 20B and the corner connector 55 are fastened together using a bolt 60 that passes through the first connection hole 37 of the formwork panel 20B and the second corner connection hole 57 of the corner connector 55, and a nut 61 that is screwed onto the bolt 60. This connects the formwork panel 20B and the corner connector 55.

[0042] In this way, the formwork panel 20A and the formwork panel 20B are connected via the corner connecting member 55, so that the formwork panel 20A and the formwork panel 20B are connected while bent at a bending angle θ.

[0043] In Figures 6 and 8, the weir plate member 21 is attached to the support member 25 before the formwork panels 20A and 20B are connected to each other. However, the weir plate member 21 may also be attached after the support member 25 is connected with the corner connecting member 55.

[0044] (Operation of this embodiment) By connecting the formwork panels 20 to the floor material 11, connecting the formwork panels 20 to each other, and connecting the formwork panels 20 via the corner connecting members 55, a concrete casting space 13 is formed that allows for the construction of a structure of a desired shape.

[0045] The effects of this embodiment will now be explained. (1) The formwork panel 20 has a weir plate member 21 and a support member 25. The support member 25 has a surrounding member 27 that surrounds the four perimeter end faces 23, 24 of the weir plate member 21, and contact members 35, 36 that are connected to the inside of the surrounding member 27 and contact the surface of the weir plate member 21 only with strip-shaped contact surfaces 35a, 36a.

[0046] With this formwork panel 20, the end faces 23 and 24 of the weir plate member 21 are surrounded by enclosure material 27, and contact materials 35 and 36 are provided inside the enclosure material 27. Therefore, when attaching the weir plate member 21 to the support member 25, the weir plate member 21 can be fitted into the support member 25. As a result, alignment between the weir plate member 21 and the support member 25 becomes easier, thereby improving the workability of attaching the weir plate member 21 to the support member 25.

[0047] Furthermore, since the contact members 35 and 36 have strip-shaped contact surfaces 35a and 36a, the weir plate member 21 can be held by a compact support member 25 with a contact surface that the weir plate member 21 abuts against. As a result, the support member 25 can be made less expensive and lighter.

[0048] (2) The weir plate member 21 and the support member 25 are configured to be detachable. This allows the weir plate member 21 to be replaced, for example, if it deteriorates over time. As a result, the support member 25 can be reused, improving the maintainability of the formwork panel 20, while also reducing the cost of the formwork panel 20 and, consequently, the formwork 10. Furthermore, it allows for greater flexibility in the distribution of the formwork panel 20 and reduces the environmental burden.

[0049] (3) The formwork panel 20 has an end contact member 35 and an intermediate contact member 36 provided between the end contact members. This effectively increases the rigidity of the support member 25.

[0050] (4) The abutment material 35, which is an end abutment material, reduces the deflection that occurs at the periphery of the weir plate member 21 when the cement composition is poured into the pouring space 13. In addition, the abutment material 36, which is an intermediate abutment material, reduces the deflection that occurs at the center of the weir plate member 21 when the cement composition is poured into the pouring space 13. As a result, it becomes possible to make the weir plate member 21 thinner, which in turn makes the weir plate member 21 lighter and consequently the formwork panel 20 lighter.

[0051] (5) In the formwork structure to which the formwork panels 20 are connected, the contact members 35 and 36 are arranged to extend in the vertical direction. This increases the rigidity of the formwork structure against its own weight.

[0052] (6) Because the abutment members 35 and 36 are channel members, the number of joints between the abutment members and the enclosure members 27 can be increased compared to when the abutment members are angle members. In addition, the rigidity of the abutment members 35 and 36 themselves, and consequently the rigidity of the support members 25, can be increased.

[0053] (7) The height H of the enclosure member is equal to the sum of the thickness (height) t of the weir plate member 21 and the height h of the abutment members 35 and 36. This allows the enclosure member 27 and the abutment members 35 and 36 to be joined at more joints. As a result, the rigidity of the support member 25 can be increased. In addition, since the other end face 27b of the enclosure member 27 and the abutment members 35 and 36 are flush, the formwork panel 20 can be made more space-saving.

[0054] (8) The support member 25 has a first connecting hole 37 with the second direction Y as its axial direction. Adjacent formwork panels 20 in the second direction Y are connected by bolting the enclosure members 27 using the first connecting hole 37. That is, adjacent formwork panels 20 in the second direction Y are connected by directly fastening the enclosure members 27 with fasteners consisting of bolts 46 and nuts 47.

[0055] Furthermore, the support member 25 has a second connecting hole 38 with the first direction X as its axial direction. Adjacent formwork panels 20 in the first direction X are connected by bolting the enclosure members 27 using the second connecting hole 38. In other words, adjacent formwork panels 20 in the first direction X are connected by directly fastening the enclosure members 27 with fasteners consisting of bolts 51 and nuts 52.

[0056] With this configuration, when connecting the formwork panels 20 in the first direction X or the second direction Y, connecting members such as those that sandwich the enclosure member 27 at the connection point are unnecessary. As a result, the formwork structure is simplified, improving the workability of connecting the formwork panels 20. Furthermore, by connecting the formwork panels 20, various shapes of concrete casting spaces 13 can be formed.

[0057] (9) In a formwork structure in which adjacent formwork panels 20 are connected at an angle (bending angle θ), adjacent enclosure members 27 are bolted together via corner connecting members 55. This further improves the degree of freedom of the pouring space 13 that can be formed by connecting the formwork panels 20.

[0058] (10) In a formwork erection structure in which formwork panels 20 are erected on floor material 11, the formwork panels 20 are bolted to the floor material 11. This allows the formwork panels 20 to be erected on the floor material 11 without the use of jigs or other fixtures. As a result, the area around the formwork panels 20 can be effectively used as other workspace.

[0059] (11) The formwork panels 20 can be connected to other structures, such as the flooring material 11. In other words, the formwork structure with connected formwork panels 20 can be applied to a part of the entire formwork, and can therefore be used in various construction sites.

[0060] This embodiment can be implemented with the following modifications. This embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically. In the formwork panel 20, the enclosure height H is equal to the sum of the thickness (height) t of the weir plate member 21 and the contact height h of the contact members 35 and 36. However, the contact members 35 and 36 may protrude from the other end face 27b of the enclosure member 27, as long as the weir plate member 21 can be fitted into the support member 25.

[0061] In the formwork panel 20, the weir plate member 21 and the support member 25 are configured to be detachable. However, the weir plate member 21 may also be fixed to the support member 25. The formwork panels 20 may be connected such that the abutment members 35 and 36 extend horizontally.

[0062] The contact material is connected to the enclosure material 27 on the inside of the enclosure material 27 and should contact the surface of the weir plate member 21. Therefore, the contact material is not limited to channel material or angle material, but may also be a square steel pipe. Furthermore, the contact material may consist of only the contact material 35, or only the contact material 36. The contact material may be provided in a cross shape on the inside of the enclosure material 27, or it may be provided so that it contacts the peripheral edge of the weir plate member 21.

[0063] In the formwork structure, adjacent enclosure members 27 are connected by bolts. However, adjacent enclosure members 27 may also be connected by methods such as pin-based joining, clamp-based joining, or wire-based joining.

[0064] In the formwork erection structure, the enclosure member 27 is connected to the floor material 11 by bolt connections. However, the enclosure member 27 may also be connected to the floor material 11 by a connection method using pins, for example.

[0065] In the formwork erection structure, a plate-like member such as a batten may be provided between the floor material 11 and the enclosure material 27. In such a case, the enclosure material 27 may be joined to the plate-like member that is joined to the floor material 11. [Explanation of Symbols]

[0066] 10...Formwork, 11...Flooring material, 13...Concrete casting space, 20, 20A, 20B, 20C...Formwork panel, 21...Wall plate member, 21a...Sectional screen, 21b...Mounting surface, 23...First end face, 24...Second end face, 25...Support member, 27...Enclosure material, 27a...One end face, 27b...Other end face, 31...First material, 32...Second material, 35...Abutment material, 35a...End-side abutment surface, 36...Abutment material, 36a...Intermediate abutment surface, 37...First connection hole, 38...Second connection hole, 41...Construction anchor, 42, 46, 51...Bolt, 47, 52...Nut, 55...Corner connection material, 56...First corner connection hole, 57...Second corner connection hole, 58, 60...Bolt, 59, 61...Nut.

Claims

1. A formwork panel having a support member for holding a rectangular planar dam plate member, The aforementioned support member is A surrounding material that encloses the four end faces of the aforementioned weir plate member, The enclosure material is connected to the inside of the enclosure material and has a contact material that contacts the surface of the weir plate member only with a strip-shaped contact surface. Formwork panels.

2. The weir plate member and the support member are configured to be detachable. The formwork panel according to claim 1.

3. The height of the enclosure material is equal to the sum of the height of the weir plate member and the height of the contact material. The formwork panel according to claim 1.

4. A formwork structure in which multiple formwork panels are connected in a direction perpendicular to the plane of the formwork panels, The aforementioned formwork panel is It has a support member that holds a rectangular planar weir plate member, The aforementioned support member is A surrounding material that encloses the four end faces of the aforementioned weir plate member, It has a contact material connected to the inside of the enclosure material and in contact with the surface of the weir plate member only with a strip-shaped contact surface, The enclosure members adjacent to each other in the direction perpendicular to the plane are joined together. Formwork structure.

5. A formwork structure in which multiple formwork panels are connected, The aforementioned formwork panel is It has a support member that holds a rectangular planar weir plate member, The aforementioned support member is A surrounding material that encloses the four end faces of the aforementioned weir plate member, It has a contact material connected to the inside of the enclosure material and in contact with the surface of the weir plate member only with a strip-shaped contact surface, It has a corner connecting member that joins adjacent enclosure members at an angle. Formwork structure.

6. This is a formwork erection structure in which formwork panels are erected on top of flooring material, The aforementioned formwork panel is It has a support member that holds a rectangular planar weir plate member, The aforementioned support member is A surrounding material that encloses the four end faces of the aforementioned weir plate member, It has a contact material connected to the inside of the enclosure material and in contact with the surface of the weir plate member only with a strip-shaped contact surface, The flooring material and the enclosure material are joined together. Formwork erection structure.

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