Closure

Abstract

To provide a closing member capable of suppressing leakage of a concrete material.SOLUTION: A closing member 1 for closing an opening 200 formed between a deck plate 100 bridging beams H, and the beams H comprises a plate 2 along a plane (YZ plane) intersecting the longitudinal direction (X direction) of the deck plate 100. The plate 2 has seal members 31-33 in an upper side 21 and slopes 22 and 23 which are deck opposite parts at least opposed to the deck plate 100 of an outer peripheral edge 2A.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a closure member. [Background technology]

[0002] In a composite structure in which a deck plate is placed on a beam and concrete is poured, it has been proposed to provide a member (closure connector) for closing the opening formed between the deck plate and the beam (see, for example, Patent Document 1). The closure connector described in Patent Document 1 is provided with a closing part for preventing concrete from leaking out from the opening, as well as a pressing part that contacts the deck plate and an engaging part that engages with the concrete material, thereby streamlining construction. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2020-153089 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the closed connector described in Patent Document 1 sometimes has difficulty in sufficiently preventing leakage of concrete material. If concrete material leaks, the design may be impaired, and in some cases, such as when wooden beams are used, it may be difficult to remove the leaked concrete. While methods such as tape curing can be considered to prevent leakage, this method has the disadvantage of increasing the number of steps required.

[0005] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a closing member that can suppress leakage of concrete material. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the closure member of the present invention is a closure member that closes an opening formed between a deck plate that is spanned between beams and the beam, and is characterized in that it has a plate portion that extends along a plane that intersects with the longitudinal direction of the deck plate, and the plate portion has a sealing member on at least the deck-facing portion of its outer peripheral edge that faces the deck plate.

[0007] In a closing member according to one aspect of the present invention, the plate portion has a blade portion at a beam-facing portion facing the beam, the blade portion being capable of being embedded in the beam.

[0008] The closure member according to one aspect of the present invention includes a plurality of the plate portions and a connecting portion that connects the plate portions together, and each of the plate portions closes one of the openings. [Effects of the Invention]

[0009] The closing member according to the present invention can suppress leakage of concrete material. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a perspective view showing a composite slab structure provided with a closure member according to a first embodiment of the present invention; [Figure 2] 1 is a perspective view showing a closing member according to a first embodiment of the present invention. FIG. [Figure 3] FIG. 6 is a perspective view showing a closure member according to a second embodiment of the present invention. [Figure 4] FIG. 10 is a front view showing an example of a blade portion of a closing member according to a second embodiment of the present invention. [Figure 5] FIG. 10 is a front view showing another example of the blade portion of the closing member according to the second embodiment of the present invention. [Figure 6] FIG. 10 is a side view showing a state in which the closure member according to the second embodiment of the present invention is being assembled. [Figure 7] FIG. 10 is a side view showing a state in which the closure member according to the second embodiment of the present invention has been completely assembled. [Figure 8]FIG. 10 is a perspective view showing a closure member and a deck plate according to a modified example of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0011] [First embodiment] A first embodiment of the present invention will be described below with reference to the drawings. Fig. 1 is a perspective view showing a composite slab structure 10 provided with a closure member 1 according to the first embodiment of the present invention, and Fig. 2 is a perspective view showing the closure member 1.

[0012] As shown in Figure 1, the closure member 1 according to the first embodiment of the present invention closes an opening 200 formed between the beams H and a deck plate 100 that spans between beams H, and has a plate portion 2 along a plane (YZ plane) that intersects with the longitudinal direction (X direction) of the deck plate 100, and the plate portion 2 has sealing members 31 to 33 on at least an upper side portion 21 and oblique side portions 22, 23 of an outer peripheral edge 2A that serve as deck-facing portions that face the deck plate 100. The closure member 1 will be described in detail below.

[0013] The closure member 1 of this embodiment is provided in a composite slab structure (composite structure) 10 as shown in Fig. 1, for example. The composite slab structure 10 includes a deck plate 100, a concrete structural section 110, and a reinforcement section 120. The deck plate 100 is spanned between beams H (only one is shown in Fig. 1). The beams H are made of wood, for example, and have a rectangular cross section. Note that the beams H are not limited to being made of wood, and may be shaped steel such as H-shaped steel, steel beams other than shaped steel, reinforced concrete beams, etc.

[0014] The deck plate 100 is formed in a plate shape with alternating peaks 100A and valleys 100B, and the direction in which the peaks 100A and valleys 100B extend is the longitudinal direction of the deck plate 100. Hereinafter, this longitudinal direction will be referred to as the X direction, the direction in which the peaks 100A and valleys 100B are aligned will be referred to as the Y direction, and the plate thickness direction will be referred to as the Z direction. In addition, in the Z direction, the side of the beam H relative to the deck plate 100 will be referred to as the lower side, and the opposite side will be referred to as the upper side, and "upper and lower" below will refer to the upper and lower sides in the Z direction.

[0015] The deck plate 100 has a bottom surface portion 101, inclined surface portions 102 and 103, and an upper surface portion 104. The bottom surface portion 101 is placed on the upper surface H1 of the beam H and extends along the XY plane. The inclined surface portions 102 and 103 extend upward from the bottom surface portion 101 and are inclined in either direction in the Y direction, with the inclination directions of the inclined surface portions 102 and 103 being different. The upper surface portion 104 connects the upper ends of the pair of inclined surface portions 102 and 103 and extends along the XY plane.

[0016] One valley portion 100B is formed by one bottom surface portion 101 and a pair of inclined surface portions 102, 103 that are arranged to sandwich the bottom surface portion 101 and move apart toward the top in the Z direction. One peak portion 100A is formed by one top surface portion 104 and a pair of inclined surface portions 102, 103 that are arranged to sandwich the bottom surface portion 101 and move apart toward the bottom in the Z direction. The top surface portion 104 is spaced apart from the top surface H1 of the beam H, and an opening 200, which is a small opening of a trapezoid, is formed at the X-direction end of the deck plate 100 between the bottom surface of the peak portion 100A and the top surface H1 of the beam H.

[0017] The concrete structural portion 110 is provided on the deck plate 100. The concrete structural portion 110 is a concrete layer formed by pouring concrete material onto the deck plate 100. The concrete structural portion 110 functions as a floor structural portion, a ceiling structural portion, a roof structural portion, a wall structural portion, or the like in the building structure.

[0018] The reinforcement section 120 is provided within the concrete structural section 110. The reinforcement section 120 has a plurality of reinforcing bars 121. The plurality of reinforcing bars 121 are combined in a lattice pattern. The reinforcement section 120 is provided at predetermined intervals on the deck plate 100. The reinforcing bars 121 may be welded wire mesh.

[0019] The closure member 1 is used to close (i.e., block) the opening 200, and as shown in Fig. 2, has a trapezoidal plate portion 2 extending along the YZ plane. That is, the plate portion 2 has a shape and size corresponding to the trapezoidal opening 200. The plate portion 2 has, at its outer peripheral edge 2A, an upper side portion 21 facing the upper surface portion 104 from below, a pair of inclined side portions 22, 23 facing each of the pair of inclined surface portions 102, 103 from below, and a bottom side portion 24 facing the upper surface H1 of the beam H from above. Of the outer peripheral edge 2A, the upper side portion 21 and the pair of inclined side portions 22, 23 form deck-facing portions that face the deck plate 100, and the bottom side portion 24 forms a beam-facing portion that faces the beam H.

[0020] In this embodiment, each portion of the outer peripheral edge 2A is formed into a plate shape by folding back a plate member (i.e., has a predetermined dimension in the X direction) and makes planar contact with each portion of the peak portion 100A of the deck plate 100 or the upper surface H1 of the beam H. It is also possible for these portions to have a small X-direction dimension, resulting in linear contact. Furthermore, a notch is formed in the center of the Y direction in the plate-shaped portion of the upper edge 21 (the portion along the XY plane), and this notch extends to the portion of the plate portion 2 along the YZ plane. This notch corresponds to a rib (not shown) protruding downward from the upper surface 104 of the deck plate 100. Such notches may be provided according to the number of ribs, or may be omitted if there are no ribs. Furthermore, if the notch is formed in the portion of the plate portion 2 along the YZ plane, it is preferable that the inner surface of the notch contacts or is positioned adjacent to the rib of the deck plate 100, and a sealing member is also provided on this inner surface. Furthermore, if the depth and width of the cutout are small and the gap between the deck plate 100 is sufficiently small, a sealing member need not be provided. That is, as will be described later, a sealing member is provided on the deck-facing portion of the outer peripheral edge 2A, but this does not only include a configuration in which a sealing member is provided over the entire area of ​​the deck-facing portion, but also a configuration in which a sealing member is not provided in portions of the deck-facing portion where irregularities or the like are formed. Folded portions 221, 231 are continuous with the ends of the inclined side portions 22, 23 on one side in the X direction (the front side in FIG. 2), and are configured to cover the inclined surface portions 102, 103 from the outside in the X direction (the front side in FIG. 1).

[0021] The inner surface of the board portion 2 (the surface at the back in FIG. 2) may be a surface that can be seen from inside the room. If the beam H is made of wood, such a visible surface may be a wood-grain designed surface. Examples of methods for creating a wood-grain designed surface include attaching a wood-grain sheet to the base of the board portion 2, providing a thin wooden plate, or constructing the board portion 2 entirely from wood.

[0022] In this embodiment, sealing members 31-34 are provided on all portions of the outer peripheral edge 2A, namely, the top edge portion 21, the pair of inclined edge portions 22, 23, and the bottom edge portion 24. That is, the plate portion 2 has sealing members 31-33 on the top edge portion 21 and the inclined edge portions 22, 23, which are the deck-facing portions of the outer peripheral edge 2A. In FIG. 2, the sealing members 31-33 are indicated by hatching. The sealing members 31-34 prevent concrete leakage at the contact portion when they come into contact with the deck plate 100 or beam H1, which is the object, and are preferably made of an elastic material such as resin or rubber. Examples of resins that make up the sealing members 31-34 include urethane. The sealing member 31 is preferably provided continuously, even in the cutout portion of the top edge portion 21, but may be interrupted.

[0023] The sealing members 31-34 may be integrally formed into an annular shape, or may be formed separately. The sealing members 31-34 may be integrally formed with the plate 2 by application or coating, or the main body of the plate 2 (e.g., a wooden board, steel plate, or resin plate) and an annular component having the sealing members 31-34 may be formed as separate components. When the plate 2 and the sealing members 31-34 are integrally formed, the entire plate 2 may be made of a sealing member such as a hard elastic member. When the plate 2 and the sealing members 31-34 are formed as separate components, the manufacturing method of the closure member 1 involves assembling components including the sealing members 31-34 to the plate 2 to provide the sealing members on at least the deck-facing portion of the outer periphery 2A of the plate 2. The plate 2 and the sealing members 31-34 may be made of different materials and integrally molded.

[0024] As described above, "the plate portion has a sealing member" includes a configuration in which a sealing member is additionally provided on the main body of the plate portion, and a configuration in which the main body of the plate portion and the sealing member are integrally formed (for example, from the same material).

[0025] The sealing member 34 provided on the bottom portion 24 may be omitted. When the sealing member 34 is omitted and one component has the sealing members 31 to 33, the bottom portion 24 may simply be provided with a portion that connects the sealing members 32 and 33 together.

[0026] The dimensions in the YZ plane, such as the Y-direction dimensions and Z-direction dimensions of the plate portion 2 including the sealing members 31-34, are slightly larger than the opening dimensions of the opening 200. Therefore, when the closure member 1 is assembled to the opening 200, the sealing members 31-34 are compressed and come into contact (close contact) with each part of the deck plate 100 or the beam H. This makes it difficult for gaps to form between the plate portion 2 and the deck plate 100, and suppresses leakage of concrete material (slag leakage) from the opening 200 when pouring concrete.

[0027] Thus, according to the closure member 1 of the first embodiment of the present invention, the plate portion 2 has sealing members 31 to 33 on the upper edge portion 21 and the inclined edge portions 22, 23, which are the deck-facing portions of the outer peripheral edge 2A, thereby improving the sealing performance between the plate portion 2 and the deck plate 100 and suppressing leakage of concrete material compared to a configuration in which a closure member is simply provided.

[0028] Furthermore, since the seal member 34 is provided not only at the deck facing portion but also at the bottom portion 24 as the beam facing portion, leakage of concrete material between the plate portion 2 and the beam H can also be suppressed.

[0029] Furthermore, by suppressing leakage of concrete material as described above, if the beam H is made of wood, the concrete material will be less visible from inside the room, which can particularly improve the design.

[0030] [Second embodiment] A second embodiment of the present invention will be described below with reference to the drawings. Fig. 3 is a perspective view showing a closure member 1B according to the second embodiment of the present invention, Fig. 4 is a front view showing an example of the blade portion 4 of the closure member 1B, Fig. 5 is a front view showing another example of the blade portion 4 of the closure member 1B, Fig. 6 is a side view showing the closure member 1B during assembly, and Fig. 7 is a side view showing the closure member 1B after assembly is complete. In this embodiment, components common to the first embodiment are designated by the same reference numerals and will not be described again.

[0031] The closure member 1B of this embodiment differs from the closure member 1 of the first embodiment in that the plate portion 2 has a blade portion 4 at the bottom portion 24 that faces the beam. Also, in the first embodiment, the material of the beam H was not limited, but the closure member 1B of this embodiment is used in a composite slab structure 10 in which the beam H is made of wood. Also, in this embodiment, a sealing member 34 is not provided at the bottom portion 24, but it may be provided.

[0032] The blade portion 4 is formed, for example, from a metal in the shape of a thin plate, and as shown in Figures 6 and 7, protrudes inward in the X direction (from the end toward the center of the deck plate 100) as it extends downward in the Z direction from the bottom side 24. As shown in Figure 4, the side edges 43, 44 of the blade portion 4 are inclined so that the width (dimension in the Y direction) decreases from the base end 41 toward the tip 42. The tip 42 may be linear as shown in Figure 4, or may be saw-tooth as shown in Figure 5.

[0033] The base portion 24 is the portion that is placed on the upper surface H1 of the beam H. Therefore, as shown in FIG. 6, the blade portion 4 protruding from the base portion 24 abuts against the upper surface H1. In this state, by applying a force to the closure member 1B in the direction in which the blade portion 4 extends, the blade portion 4 is driven into the wooden beam H. As a result, as shown in FIG. 7, the closure member 1B is positioned to close the opening 200 and the blade portion 4 is driven into the beam H, completing the assembly of the closure member 1B.

[0034] According to the closing member 1B according to the second embodiment of the present invention, as in the first embodiment, the provision of the sealing members 31 to 33 can prevent leakage of concrete material. Furthermore, the base portion 24, which serves as the beam-facing portion, has the blade-shaped portion 4, which improves adhesion between the base portion 24 and the beam H, further preventing leakage of concrete material. Furthermore, when an undesirable external force is applied to the closing member 1B, it is possible to make it less likely for a gap to form between the base portion 24 and the beam H.

[0035] The present invention is not limited to the above-described embodiments and includes other configurations that can achieve the object of the present invention, including modifications such as those described below. For example, in the above-described embodiments of the present invention, each closure member 1, 1B has only one plate portion 2. However, as shown in FIG. 8, each closure member 1C may have multiple (two in the illustrated example) plate portions 2B, 2C. Similar to the first and second embodiments, the plate portions 2B, 2C have sealing members on their deck-facing portions. The plate portions 2B, 2C are connected by a connecting portion 5 extending in the Y direction, and each plate portion 2B, 2C closes one opening 200. That is, the plate portion 2B closes the opening 200 on the left side of the figure, and the plate portion 2C closes the opening 200 on the right side of the figure.

[0036] The connecting portion 5 is formed in the shape of a strip extending along the XY plane and is formed integrally with the plate portions 2B and 2C. In the illustrated example, the connecting portion 5 has a secondary closing portion 51 for closing another opening 105 formed by a convex portion on the bottom surface of the deck plate 100, but the secondary closing portion may be provided as appropriate depending on the shape of the deck plate. A sealing member may also be provided in the secondary closing portion 51.

[0037] In the modified example shown in FIG. 8 , the upper edge portions 25 of the plate portions 2B, 2C are folded back toward the center of the deck plate 100 to form a plate shape (i.e., have a predetermined X-direction dimension) and make planar contact with the deck plate 100. In contrast, the pair of inclined edge portions 26, 27 are not folded back, and have a relatively small X-direction dimension. In this case, the inclined edge portions 26, 27 may make linear contact with the deck plate 100 from below, or the end portions of the deck plate 100 may make linear contact with the inclined edge portions 26, 27 from the X direction. In other words, the portion of the outer periphery of the plate portion where the sealing member is provided may face the deck plate in the Z direction (thickness direction of the deck plate) or in the X direction (longitudinal direction of the deck plate). This is also true in configurations with only one plate portion 2, as in the first and second embodiments.

[0038] Although the embodiments of the present invention have been described above, the present invention is not limited to the closure member according to the above-described embodiments of the present invention, and includes all aspects encompassed by the concept and scope of the claims. Furthermore, each configuration may be appropriately and selectively combined to achieve at least some of the above-described problems and advantages. For example, the shape, material, arrangement, size, etc. of each component in the above-described embodiments may be appropriately modified depending on the specific use of the present invention. [Explanation of symbols]

[0039] 1, 1B, 1C... Closure member, 2, 2B, 2C... Plate portion, 2A... Outer periphery, 21, 25... Upper edge portion (facing deck), 22, 23, 26, 27... Inclined edge portion (facing deck), 24... Bottom edge portion (facing beam), 31 to 33... Sealing member, 4... Blade-shaped portion, 5... Connecting portion, 100... Deck plate, 200... Opening, H... Beam

Claims

1. A closure member that closes an opening formed between a deck plate that is bridged between beams and the beam, The deck plate has a plate portion extending along a plane intersecting the longitudinal direction of the deck plate, The plate portion has a deck-facing portion that faces the deck plate and extends in a direction perpendicular to the main body of the plate portion, and a beam-facing portion that faces the beam and is inclined toward the outer periphery as it moves away from the main body in the perpendicular direction, and the plate portion has a sealing member at least in the deck-facing portion of the outer periphery, A closure member characterized in that the sealing member is formed integrally with the plate portion by application or coating, or is formed as a separate part from the main body of the plate portion and assembled thereto.

2. A closure member that closes an opening formed between a deck plate that is bridged between beams and the beam, The deck plate has a plate portion extending along a plane intersecting the longitudinal direction of the deck plate, the plate portion has a seal member at least on a deck-facing portion of an outer circumferential edge thereof that faces the deck plate, The closure member is characterized in that the plate portion has a blade-like portion at a beam-facing portion facing the beam that can be embedded in the beam.

3. The plate portion includes a plurality of plate portions and a connecting portion that connects the plate portions to each other, 3. The closing member according to claim 1, wherein each of the plate portions closes one of the openings.

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