Panel member

Abstract

To provide panel members preventing objects from passing through a gap between the panel members or eliminating a visible state from an inside to an outside or from the outside to the inside through the gap.SOLUTION: A panel member 10, for a fixation structure of the resin panel member 10 attached on a fixation structure, is provided with: a body part 17 in a rectangular in a planar view; and a projected piece 15 arranged projectedly from at least one side surface 14a at one edge side of the body part 17 and a concave part 16 arranged along an edge at the other side opposite to the one edge side of the body part 17, or either thereof, wherein a panel member fixation structure is configured to overlap the projected piece 15 of one of the panel member 10 with the concave part 16 of the other panel member 10 adjacent thereto in a planar view in a state where a plurality of panel members 10 are parallelly fixed on the fixation structure.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] This invention relates to panel members used for scaffolds, sound barriers, and various other temporary structures, permanent structures, etc.

Background Art

[0002] In various structures such as viaducts and bridges, various scaffolds and sound barriers are used for maintenance work and inspections. For example, Patent Document 1 describes a metal (aluminum) panel member as a permanent scaffold installed on the back side (lower surface side) of a structure.

[0003] Also, for example, in Patent Document 2, a hollow panel member is used to construct the roofs and walls of various facilities. Further, for example, in Patent Document 3, as a hollow panel member for constructing the floor structure of various facilities, a longitudinal hollow portion having openings at both ends is provided in parallel along the width direction orthogonal to its longitudinal direction.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] The panel member of Patent Document 1 uses an extruded aluminum material. However, an extruded aluminum material requires a high pressure for molding. For this reason, it is often used to manufacture relatively narrow members with a width of around 200 mm. Therefore, when used as a scaffold, a plurality of plate materials with a width of around 200 mm are bolted together to form a single wide panel member, which is then transported to the site. However, the bolts for connecting the plate materials are incorporated inside the panel member. For this reason, the bolts cannot be visually recognized from the outside, and there is a problem that it is difficult to inspect them before and after laying the panel member.

[0006] On the other hand, a resin panel member is formed by drawing or the like, so it does not require as much molding pressure as aluminum. For this reason, it is easy to manufacture wide members, and it is possible to avoid providing bolts or the like at positions that cannot be visually recognized from the outside.

[0007] However, in resin panel members such as those of Patent Documents 2 and 3, the gap between adjacent panel members becomes a problem. Since a resin panel expands as the temperature rises and bends when a load acts, a gap of more than a predetermined amount is required between the members. If the gap between the panel members is large, for example, in the case of a work scaffold, there is a risk of dropping small parts used for work through the gap. Also, there may be cases where it is not preferable that the work site can be visually recognized from the outside through the gap, or that light leaks to the outside through the gap.

[0008] Therefore, an object of the present invention is to make it difficult for objects to pass through the gap between panel members when installing the panel members, or to eliminate the state where the inside can be visually recognized from the outside or the outside can be visually recognized from the inside through the gap.

Means for Solving the Problems

[0009] In order to solve the above problems, the present invention provides a fixing structure for a resin panel member attached to a structure. The panel member includes a main body portion having a rectangular shape in plan view, a protruding piece provided to protrude from at least one side surface of the main body portion, and a recessed portion provided along an edge of the other side opposite to the one side of the main body portion, or any one of them. In a state where a plurality of the panel members are fixed to the structure in parallel, a fixing structure of the panel member is adopted in which the protruding piece of one panel member overlaps with the recessed portion of the adjacent other panel member in plan view (Configuration 1).

[0010] In Configuration 1, a configuration can be adopted in which a gap is interposed between opposing surfaces of the protruding piece and the recessed portion in a state where the protruding piece of one panel member overlaps with the recessed portion of the adjacent other panel member in plan view (Configuration 2).

[0011] As the panel member used in the fixing structure of the panel member according to Configuration 1 or Configuration 2, a panel member can be adopted in which the protruding piece is formed along an extension line of the top surface of the main body portion, and the top surface of the protruding piece and the top surface of the main body portion are flush and continuous (Configuration 3).

[0012] Also, as the panel member used in the fixing structure of the panel member according to Configuration 1 or Configuration 2, a panel member can be adopted in which the protruding piece is set to gradually decrease in thickness from the root portion on the side surface side toward the end portion on the protruding side (Configuration 4).

[0013] Furthermore, as a fiber-reinforced resin panel member used in the fixing structure of the panel member according to Configuration 1 or Configuration 2, a panel member can be adopted which includes opposing top and bottom plates and wall portions connecting the top and bottom plates, and a hollow space having openings at both ends in the longitudinal direction along one side and the other side is formed in plurality along the width direction orthogonal to the longitudinal direction, and is formed from a drawn molded body (Configuration 5).

[0014] Furthermore, as the fiber-reinforced resin panel member used in the fixing structure of the panel member according to Configuration 1 or Configuration 2, reinforcing fibers are included inside the protruding piece and the main body portion, and the ratio of the reinforcing fibers extending in the width direction orthogonal to the longitudinal direction along one side and the other side among the reinforcing fibers inside the protruding piece is set to be larger than the ratio of the reinforcing fibers extending in the width direction among the reinforcing fibers inside the main body portion. A panel member can be adopted (Configuration 6).

[0015] In addition, as the resin or fiber-reinforced resin panel member used in the fixing structure of the panel member according to Configuration 1 or Configuration 2, an aspect in which a plurality of elements selected from Configurations 3 to 6 are added can also be adopted.

Advantages of the Invention

[0016] According to this invention, when installing the panel members, it is possible to make it difficult for objects to pass through the gaps between the panel members, and it is also possible to eliminate the state where the inside can be visually recognized from the outside or the outside can be visually recognized from the inside through the gaps.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Best Mode for Carrying Out the Invention

[0018] Embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, this embodiment is an example of a fixing structure using a resin panel member 10 as a permanent scaffold and a permanent wall attached to an elevated structure such as a highway.

[0019] As shown in FIG. 2, the panel member 10 of the embodiment is a member having a flat rectangular parallelepiped-shaped main body portion 17 that forms a rectangle in plan view. The main body portion 17 includes a plurality of longitudinally extending hollow spaces (hollow portions) having openings at both ends, arranged in parallel along the width direction orthogonal to the longitudinal direction. Hereinafter, the direction in which the hollow space extends is referred to as the longitudinal direction A, and the direction orthogonal to the longitudinal direction A is referred to as the width direction B.

[0020] The panel member 10 is made of GFRP (glass fiber reinforced plastic). The panel member 10 includes opposing top and bottom plates 11 and 12, and wall portions 13 and 14 connecting the top plate 11 and the bottom plate 12. Among the wall portions 13 and 14, the wall portions 14 located at both ends in the width direction B are hereinafter referred to as side wall portions 14. Also, the wall portions 13 located other than both ends in the width direction B are hereinafter referred to as middle wall portions 13. The longitudinal space surrounded by the top plate 11, the bottom plate 12, and the side wall portions 14 or the middle wall portions 13 is a hollow space having openings at both ends in the longitudinal direction A. The side wall portions 14 and the middle wall portions 13 are continuously provided over the entire length in the longitudinal direction A.

[0021] The panel member 10 is used by being spanned between support members 2, 2 to construct the floor structures of buildings, structures, and various other facilities. In the embodiment, a girder made of a steel material having an I-shaped cross-section is assumed as the support member 2. The girder is composed of an upper flange and a lower flange 2a, and a web connecting the upper flange and the lower flange 2a. With the panel member 10 laid between the support members 2, 2, workers engaged in inspection and repair walk on the panel member 10.

[0022] When fixing the panel member 10 to the support member 2, the bracket 5 and the locking means 20 are used as necessary.

[0023] As shown in FIGS. 1, 2, and 3, the bracket 5 includes a receiving portion 5a that supports the panel member 10 from below. The bracket 5 is fixed to the support member 2 by bolts and nuts, or welding or the like. The bracket 5 of the embodiment is placed and fixed on the lower flange 2a of the support member 2. However, the installation position of the bracket 5 on the support member 2, the installation structure, and further, the form of the bracket 5 can be deformed according to the form of the structure. For example, as shown in the modification of FIG. 8, a form in which the position of the panel member 10 is lowered by hanging the bracket 5 on a girder is also possible.

[0024] As the locking means 20, for example, as shown in FIG. 3, a bolt 20a that penetrates the receiving portion 5a and the panel member 10 and a nut 20b that is screwed onto the bolt 20a can be used. The bolt 20a is inserted upward from below through a through hole provided in the receiving portion 5a and is inserted through a through hole provided in the bottom plate 12 of the panel member 10. The nut 20b is screwed onto the bolt 20a within the hollow space of the panel member 10.

[0025] Here, a reinforcing member 21 may be provided in the hollow space of the panel member 10. The reinforcing member 21 is inserted into both ends in the longitudinal direction A of the hollow space to reinforce the periphery of the locking means 20. As shown in FIG. 3, the reinforcing member 21 is composed of a member having a quadrangular cross section including a top portion facing the inner surface of the top plate 11 of the panel member 10, a bottom portion facing the inner surface of the bottom plate 12, and a pair of connecting portions connecting the top portion and the bottom portion. A through hole through which the bolt 20a is inserted is provided in the bottom portion. It is desirable that the reinforcing member 21 be in close contact with the inner surface of the hollow space of the panel member 10.

[0026] As shown in FIGS. 4 and 5, the panel member 10 includes a protruding piece 15 provided to protrude from a side surface 14a on at least one side (the left side in FIG. 4) of the main body portion 17, and a recessed portion 16 provided along an edge on the other side (the right side in FIG. 4) opposite to one side of the main body portion 17. One side and the other side correspond to the longitudinal direction A.

[0027] As shown in FIG. 3, a plurality of panel members 10 are arranged in parallel along the width direction B, and they are fixed to the support member 2 (receiving portion 5a). Here, since the longitudinal direction A of the panel member 10 corresponds to the left - right direction in FIG. 1, the depth direction in FIG. 1 is the width direction B of the panel member 10.

[0028] In the juxtaposed panel members 10, 10, the protruding piece 15 of one panel member 10 overlaps with the recessed portion 16 of the adjacent other panel member 10 in a plan view. By adopting such a fixing structure of the panel member 10, it is possible to make it difficult for objects to pass through the gaps between the panel members 10, and it is possible to avoid a situation where parts fall through the gaps. In addition, it is possible to eliminate a state where light leaks to the outside through the gaps, or a state where the inside can be visually recognized from the outside or the outside can be visually recognized from the inside, and a so - called blind - fold function can be exhibited.

[0029] In this way, with the protruding piece 15 overlapping the recessed portion 16 in a plan view, a gap is interposed between the opposing surfaces of the protruding piece 15 and the recessed portion 16 (see FIG. 3). Due to the presence of such a gap, when the panel member 10 expands as the temperature rises, and when a load acts on the panel member 10 and it bends, for example, a situation where the protruding piece 15 rides up on the main body portion 17, that is, interference between the panel members 10 can be prevented. Also, even if a relatively large gap is ensured, the function of preventing objects from falling and the blind - fold function can be maintained due to the overlap between the protruding piece 15 and the recessed portion 16.

[0030] Here, as shown in FIGS. 3 and 4, the protruding piece 15 is formed along the extension line of the top surface 17a of the main body portion 17, and the top surface 15d of the protruding piece 15 and the top surface 17a of the main body portion 17 are flush and continuous. Therefore, steps are less likely to occur on the surface of the panel member 10, which also contributes to improving work safety and aesthetics.

[0031] Further, the protruding piece 15 is set so that its thickness gradually decreases from the base portion 15c on the side surface 14a side toward the protruding end portion 15b. In the embodiment, as shown in FIG. 4, the thickness t0 of the base portion 15c of the protruding piece 15 is thicker than the thickness t1 of the protruding end portion 15b. For example, when an operator walks on the panel member 10, stress may concentrate on the base portion 15c of the protruding piece 15. However, if the thickness of the base portion 15c is larger than the thickness of the end portion 15b, breakage of the protruding piece 15 can be avoided. Such a difference in thickness can be easily installed by making the back surface 15a of the protruding piece 15 an inclined surface.

[0032] Note that the dimensions of the recessed portion 16 correspond to the dimensions of the base portion 15c. As shown in FIG. 4, the height is s1 at the end on the side surface 14b side and s0 at the end on the inner side. Since s1>t0 and s0>t1, a gap between the opposing surfaces during installation is ensured. Further, the end on the inner side of the recessed portion 16 is a stepped portion (end wall) extending in the vertical direction. A necessary gap is also ensured between this stepped portion (end wall) and the end portion 15b of the protruding piece 15. Note that the shape of the recessed portion 16 can be appropriately changed according to the shape of the protruding piece 15.

[0033] In the embodiment, a panel member 10 made of a drawn molded body in which a plurality of hollow spaces having openings at both ends in the longitudinal direction A are formed along the width direction B by the top plate 11, the bottom plate 12, and the wall portions 13 and 14 is employed. In particular, when the panel member 10 is used as a scaffold panel, it is preferably made of a fiber-reinforced resin and is a drawn molded body. Further, ribs (wall portions 13 and 14) are provided inside along the drawing direction, so that the strength can be further enhanced.

[0034] Here, when the panel member 10 is made of a fiber-reinforced resin, as shown in FIG. 2, reinforcing fibers are included inside the protruding piece 15 and the main body portion 17. The reinforcing fibers inside the main body portion 17 are mainly embedded along the longitudinal direction A as indicated by the reference sign a in the figure. On the other hand, the reinforcing fibers inside the protruding piece 15 contain more reinforcing fibers extending in the width direction B indicated by the reference sign b in addition to the reinforcing fibers of the reference sign a embedded along the longitudinal direction A.

[0035] In short, it is desirable that the ratio of the reinforcing fibers extending in the width direction B among all the reinforcing fibers inside the protruding piece 15 is set to be larger than the ratio of the reinforcing fibers extending in the width direction B among all the reinforcing fibers inside the main body portion 17. Such an arrangement of the reinforcing fibers can be achieved by increasing the input amount of the cross layer or the corrugated layer containing the reinforcing fibers extending in the longitudinal direction A and the width direction B at the portion corresponding to the protruding piece 15 during the drawing forming, and the strength of the protruding piece 15 can be improved.

[0036] In the embodiment, the panel member 10 is made of a fiber-reinforced resin, but as long as the strength and durability are ensured, it may be made of a resin other than the fiber-reinforced resin.

[0037] Also, as in the modified example shown in FIG. 6, a panel member 10 provided with protruding pieces 15 at both ends in the width direction B and not provided with the recessed portion 16 may be adopted. Also in this case, if the adjacent panel members 10 are panel members 10 provided with recessed portions 16 at both ends in the width direction B and not provided with protruding pieces 15, the panel members 10 provided only with the protruding pieces 15 and the panel members 10 provided only with the recessed portions 16 can be arranged alternately.

[0038] Also, as in the modified example shown in FIG. 7, a fixing structure in which the panel member 10 is inverted vertically so that the protruding piece 15 and the recessed portion 16 are located on the lower surface side of the panel member 10 can also be adopted.

[0039] Furthermore, in each of the above-described embodiments, the protruding piece 15 is formed along the extension line of the top surface 17a (top panel 11) of the main body portion 17. However, the position of the protruding piece 15 may be other than the height of the top surface 17a (top panel 11). For example, a form in which the protruding piece 15 protrudes laterally from the middle in the height direction of the side surface 14a is conceivable. In this case, the recessed portion 16 is also provided at a position corresponding to the protruding piece 15 in the middle of the height direction of the side surface 14b.

[0040] In addition, as shown at both ends in the left-right direction of FIG. 1, the panel member 10 may be used as a wall portion (permanent wall). The wall portion is installed for the purpose of a blind function, a light-shielding function, a sound-insulating function, etc. In the embodiment, the panel member 10 used as the wall portion includes two main body portions 17 having a rectangular shape in plan view, and the main body portions 17 are connected in an L-shaped cross section. The point where the panel member 10 is fixed to the support member 2 is the same.

[0041] In the above-described embodiment, the configuration of the present invention has been described by taking permanent structures such as a permanent scaffold and a permanent wall attached to an elevated structure such as a highway as an example. However, the use of the panel member 10 of the present invention is not limited to the embodiment. For example, the panel member 10 and its fixing structure can also be used for temporary structures such as a temporary scaffold and a temporary wall.

Explanation of Signs

[0042] 10 Panel member 11 Top panel 12 Bottom panel 13 Wall portion (middle wall portion) 14 Wall portion (side wall portion) 14a, 14b Side surface 15 Protruding piece 15a Back surface 15b End portion 15c Root portion 15d Top surface 17 Main body portion 17a Top surface A Longitudinal direction B Width direction

Claims

1. In a fixing structure of a resin panel member (10) attached to a structure, the panel member (10) includes a main body portion (17) having a rectangular shape in plan view, a protruding piece (15) provided to protrude from a side surface (14a) on at least one side of the main body portion (17), and a recessed portion (16) provided along an edge on the other side opposite to the one side of the main body portion (17), or any one of them. A fixing structure of panel members in which, in a state where a plurality of the panel members (10) are fixed to the structure in parallel, the protruding piece (15) of one of the panel members (10) overlaps with the recessed portion (16) of the other adjacent panel member (10) in plan view.

2. The fixing structure of the panel member according to claim 1, wherein a gap is interposed between opposing surfaces of the protruding piece (15) and the recessed portion (16) in a state where the protruding piece (15) of one of the panel members (10) overlaps with the recessed portion (16) of the other adjacent panel member (10) in plan view.

3. A panel member (10) used in the fixing structure of the panel member according to claim 1 or 2, wherein the protruding piece (15) is formed along an extension line of the top surface (17a) of the main body portion (17), and the top surface (15d) of the protruding piece (15) and the top surface (17a) of the main body portion (17) are flush and continuous.

4. A panel member (10) used in the fixing structure of the panel member according to claim 1 or 2, wherein the protruding piece (15) is set to gradually decrease in thickness from the root portion (15c) on the side surface (14a) side toward the protruding end portion (15b).

5. A fiber-reinforced resin panel member (10) used in the fixing structure of the panel member according to claim 1 or 2, comprising an opposing top plate (11) and bottom plate (12), and wall portions (13, 14) connecting the top plate (11) and the bottom plate (12), and a hollow space having openings at both ends in the longitudinal direction (A) along the one side and the other side is formed in plurality along the width direction (B) orthogonal to the longitudinal direction (A) by a drawn body.

6. A fiber-reinforced resin panel member (10) used in the fixing structure of the panel member according to claim 1 or 2, The reinforcing fibers are included inside the protruding piece (15) and the main body portion (17), and the ratio of the reinforcing fibers extending in the width direction (B) orthogonal to the longitudinal direction (A) along the one side and the other side among the reinforcing fibers inside the protruding piece (15) is set to be larger than the ratio of the reinforcing fibers extending in the width direction (B) among the reinforcing fibers inside the main body portion (17). A panel member.

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