Floorboards

Abstract

To disclose an example of a floorboard capable of shortening a construction period.SOLUTION: A floorboard 10 is made of fiber-reinforced plastic. This reduces a mass of the floorboard 10 to improve installation workability. Consequently, a construction period for installing the floorboard 10 may be shorter. A thickness direction dimension H1 of a main body part 13 is larger than a thickness direction dimension H2 of a first supported part 11 and a second supported part 12. Thereby, a lower surface 10B of the main body part 13 can be reliably brought into contact with an embankment 4. Therefore, in the floorboard 10, a self-weight of the floorboard 10 and a vertical load acting on the floorboard 10 can be received not only by the first supported part 11 and the second supported part 12 but also by the main body part 13.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a floor plate that is arranged to bridge two beams. [Background technology]

[0002] For example, in the invention described in Patent Document 1, a platform structure for a railway station is configured by a floor plate spanning two support parts. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-97554 Summary of the Invention [Problem to be solved by the invention]

[0004] However, floor panels made of high-strength concrete materials such as Ductal (registered trademark) have a large mass, so moving the floor panels requires equipment such as a crane. Therefore, constructing a platform using Ductal (registered trademark) floor panels increases the number of man-hours required. This disclosure discloses an example of a floor panel that takes this into consideration. [Means for solving the problem]

[0005] The floor panel (10) arranged to bridge the first support girder (1A) and the second support girder (1B) arranged at a distance from the first support girder (1A) preferably has at least one of the following constituent features:

[0006] That is, the constituent elements are a first supported part (11) supported by the first support girder (1A), the first supported part (11) being made of fiber-reinforced plastic; a second supported part (12) supported by the second support girder (1B), the second supported part (12) being made of fiber-reinforced plastic; and a main body part (13) that connects the first supported part (11) and the second supported part (12) and is an integral part of the first supported part (11) and the second supported part (12), the main body part (13) being made of fiber-reinforced plastic.

[0007] It is desirable that the thickness dimension (H1) of the main body portion (13) is greater than the thickness dimension (H2) of the first supported portion (11) and the second supported portion (12), and that the upper surface (13A) of the main body portion (13), the upper surface (11A) of the first supported portion (11), and the upper surface (12A) of the second supported portion (12) are approximately flush with each other.

[0008] The thickness direction is a direction perpendicular to the longitudinal direction and coincides with the up-down direction when the first supported portion (11) is supported by the first support girder (1A) and the second supported portion (12) is supported by the second support girder (1B). The longitudinal direction is a direction parallel to the direction from the first supported portion (11) to the second supported portion (12).

[0009] Furthermore, because the floorboards are made of fiber-reinforced plastic, they have a smaller mass than floorboards made of Ductal (registered trademark), which improves installation workability and potentially reduces the number of steps required to install the floorboards.

[0010] Furthermore, since the thickness dimension (H1) of the main body portion (13) is larger than the thickness dimension (H2) of the first supported portion (11) and the second supported portion (12), the underside of the main body portion (13) can be brought into contact with, for example, embankments, etc.

[0011] Therefore, in this floor panel, the weight of the floor panel and the vertical load acting on the floor panel can be supported not only by the first supported portion (11) and the second supported portion (12) but also by the main body portion (13).

[0012] That is, in this floorboard, the vertical load acting on the floorboard is prevented from being concentrated only on the first supported portion 11 and the second supported portion 12. As a result, the maximum stress generated in the floorboard can be reduced, which may facilitate weight reduction of the floorboard.

[0013] When a vertical load acts on a floor panel, the largest bending moment usually occurs in the center of the floor panel in the longitudinal direction, and the bending moment at one end and the other end of the floor panel in the longitudinal direction is smaller.

[0014] In contrast, in the floorboard, the thickness direction dimension (H1) of the main body portion (13) is larger than the thickness direction dimension (H2) of the first supported portion (11) and the second supported portion (12), and therefore the bending rigidity of the main body portion (13) is larger than the bending rigidity of the first supported portion (11) and the second supported portion (12). Therefore, it may be possible to effectively obtain the required strength.

[0015] Incidentally, the symbols in each of the parentheses above are examples showing the correspondence with the specific configurations, etc. described in the embodiments described below, and the present disclosure is not limited to the specific configurations, etc. shown by the symbols in the parentheses above. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a diagram showing an example of construction of a platform using floorboards according to the first embodiment. [Figure 2] FIG. 1 is a diagram showing an example of construction of a platform using floorboards according to the first embodiment. [Figure 3] 1 is a diagram showing the structure of a floorboard according to a first embodiment. FIG. [Figure 4] 1 is a diagram showing the structure of a floorboard according to a first embodiment. FIG. [Figure 5] 1 is a diagram showing the structure of a floorboard according to a first embodiment. FIG. [Figure 6] 1 is a diagram showing the structure of a floorboard according to a first embodiment. FIG. [Figure 7] 1 is a diagram showing the structure of a floorboard according to a first embodiment. FIG. [Figure 8] FIG. 10 is a diagram showing the structure of a floorboard according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0017] The following "embodiments of the invention" are examples of embodiments that fall within the technical scope of the present disclosure. In other words, the invention-specific matters described in the claims are not limited to the specific configurations and structures shown in the following embodiments.

[0018] Note that arrows and diagonal lines indicating directions in each figure are provided to facilitate understanding of the relationship between the figures and the shapes of each component or part. Therefore, the invention disclosed in this disclosure is not limited to the directions indicated in each figure.

[0019] At least one of the components or parts described with a reference numeral is provided, unless otherwise specified, such as "one." The floorboard shown in this embodiment includes at least one of the components such as the components or parts described with a reference numeral and the structural parts shown in the drawings.

[0020] (First embodiment) <1. Floorboard Overview> In this embodiment, an example of a floor panel according to the present disclosure is applied to a railway platform. Specifically, as shown in Fig. 1, a floor panel 10 according to this embodiment is mainly used as a floor panel in a portion of a platform 1 where a movable platform fence 2 is installed.

[0021] That is, the floor panel 10 is a member arranged to bridge the first support girder 1A and the second support girder 1B, as shown in Fig. 2. The second support girder 1B is arranged at a position spaced apart horizontally from the first support girder 1A.

[0022] The first support girder 1A and the second support girder 1B are made of steel, such as I-beams, and are supported by steel pipe piles 3 (see Figure 1). An embankment 4 is provided below the floor slabs 10, the first support girder 1A, and the second support girder 1B. A wall (not shown) is provided on the track side of the embankment 4 to prevent the embankment 4 from collapsing.

[0023] <2. Floorboard composition> <2.1 Floorboard Overview> As shown in Fig. 3, the floor panel 10 according to this embodiment includes at least a first supported portion 11, a second supported portion 12, and a main body portion 13. As shown in Fig. 2, the first supported portion 11 is a portion supported by the first support girder 1A.

[0024] The second supported portion 12 is a portion supported by the second support girder 1B. The main body portion 13 is a portion connecting the first supported portion 11 and the second supported portion 12. In other words, the first supported portion 11 is provided at one longitudinal end of the main body portion 13. The second supported portion 12 is provided at the other longitudinal end of the main body portion 13.

[0025] The longitudinal direction refers to the direction parallel to the direction from the first supported portion 11 to the second supported portion 12. Hereinafter, the thickness direction will be defined as the direction perpendicular to the longitudinal direction and coinciding with the up-down direction when the first supported portion 11 is supported by the first support girder 1A and the second supported portion 12 is supported by the second support girder 1B.

[0026] The thickness direction dimension H1 of the main body portion 13 is larger than the thickness direction dimension H2 of the first supported portion 11 and the second supported portion 12, and the upper surface 13A of the main body portion 13, the upper surface 11A of the first supported portion 11 and the upper surface 12A of the second supported portion 12 are approximately flush.

[0027] Hereinafter, the phrase "top surface 13A, top surface 11A, and top surface 12A are substantially flush" means that when the movable platform fence 2 is installed on any of top surfaces 13A, 11A, and 12A, a degree of flatness is ensured that does not interfere with the installation. Hereinafter, top surface 13A of main body 13, top surface 11A of first supported portion 11, and top surface 12A of second supported portion 12 will be collectively referred to as top surface 10A of floor panel 10.

[0028] Therefore, even if "there are unevenness on upper surface 13A, upper surface 11A and upper surface 12A to the extent that it does not interfere with the installation of the platform movable fence 2," this still falls under the category of "the upper surface 13A, upper surface 11A and upper surface 12A are approximately flush."

[0029] 3, a space Sp in which at least a cable (not shown) can be routed is provided inside the main body 13. A first partition wall 13B and a second partition wall 13C are provided inside the space Sp to divide the space Sp into a plurality of spaces.

[0030] The cable refers to an electric cable such as a power cable that supplies power to the movable platform fence 2 and a signal cable that transmits and receives electric signals to control the operation of the movable platform fence 2, for example.

[0031] The first partition wall 13B extends in the longitudinal direction within the space Sp to divide the space Sp in the width direction. The width direction refers to a direction perpendicular to the longitudinal direction and thickness direction. The second partition wall 13C extends in the width direction to divide the space Sp in the longitudinal direction.

[0032] In this embodiment, a plurality of first partition walls 13B and second partition walls 13C are provided. The space Sp is divided into a lattice pattern. That is, the space Sp according to this embodiment is configured as a collection of a plurality of spaces 13D (hereinafter also referred to as cells 13D).

[0033] The multiple first partition walls 13B and second partition walls 13C are connected to each other and to at least the outer walls of the main body 13. The outer walls of the main body 13 are the upper surface 10A, the lower surface 10B, and the widthwise side surfaces 10C and 10D of the floor board 10.

[0034] Therefore, each of the plurality of cells 13D is a hexahedral space formed by the upper surface 10A, lower surface 10B, widthwise side surfaces 10C, 10D of the floorboard 10, and one of the first partition wall 13B and second partition wall 13C.

[0035] The main body 13, which includes the first supported portion 11, the second supported portion 12, and the plurality of first partition walls 13B and second partition walls 13C, is constructed as a single unit formed from carbon fiber reinforced plastic.

[0036] A large number of carbon fibers extending in the longitudinal direction and a large number of carbon fibers extending in the width direction are embedded in the upper surface 10A and the lower surface 10B of the floorboard 10. A large number of carbon fibers extending in the longitudinal direction and a large number of carbon fibers extending in the thickness direction are embedded in the width direction side surfaces 10C and 10D.

[0037] That is, at least the outer wall of the floorboard 10 is made of resin reinforced with carbon fiber extending in the longitudinal direction and carbon fiber extending in a direction perpendicular to the longitudinal direction. The plurality of first partition walls 13B and second partition walls 13C are also made of carbon fiber reinforced plastic, just like the outer wall.

[0038] In this embodiment, as shown in Figure 4, a reinforcing sheet portion 14 is provided on the side surfaces of one and the other widthwise ends of the first supported portion 11 and the second supported portion 12, in the area connected to the main body portion 13, i.e., the area R where the thickness dimension changes significantly.

[0039] The reinforcing sheet portion 14 is a portion where the fibers in the carbon fiber reinforced plastic extend in a direction intersecting the longitudinal direction and the thickness direction (in this embodiment, a direction inclined at 45°). Furthermore, the portion R where the thickness dimension changes is configured to have a curved surface to alleviate stress concentration.

[0040] <2.2 Details of the main body> 3 and 7, the plurality of first partition walls 13B and the plurality of second partition walls 13C are provided with communication holes 15A and 15B, respectively. The communication holes 15A provided in the first partition wall 13B allow communication between the cells 13D adjacent to each other in the width direction.

[0041] The communication holes 15B formed in the second partition wall 13C communicate between the cells 13D adjacent to each other in the longitudinal direction, so that each cell 13D defines a space Sp connected by the communication holes 15A and 15B.

[0042] At least one communication hole 15C is provided in each of the width-direction side surfaces 10C, 10D. The communication hole 15C penetrates in the width direction to connect the space Sp to the outside. In this embodiment, the communication hole 15C is provided for each cell 13D.

[0043] 5, communication holes 15D are provided at one and the other longitudinal ends of the main body 13. Each communication hole 15D connects the space Sp with the outside. Each communication hole 15D is provided in series along the longitudinal direction together with a plurality of communication holes 15B.

[0044] Therefore, a communication passage is formed inside main body 13, extending from one longitudinal end to the other longitudinal end of main body 13. The lower outer edges of communication holes 15B and 15D are aligned substantially with lower surface 10B of main body 13, as shown in FIG.

[0045] As shown in Figures 5 and 3, the lower outer edges of the communicating holes 15A and 15C are located above the lower surface 10B of the main body 13, and the upper outer edges of the communicating holes 15A and 15C are located below the upper surface 13A of the main body 13.

[0046] That is, at the upper and lower outer edges of the communicating holes 15A and 15C, there are wall portions that are part of the first partition wall 13B or the widthwise side surfaces 10C and 10D. In contrast, there are no wall portions at the lower outer edges of the communicating holes 15B and 15D, but there are wall portions at the upper outer edges of the communicating holes 15A and 15D (see FIG. 6).

[0047] <2.3 Details of the first supported portion and the second supported portion> The first supported portion 11 and the second supported portion 12 are configured symmetrically with respect to the center in the longitudinal direction. In other words, the first supported portion 11 and the second supported portion 12 have the same configuration.

[0048] The first supported portion 11 and the second supported portion 12 are fixed to the first support girder 1A and the second support girder 1B, respectively, with bolts (not shown). For this reason, the first supported portion 11 and the second supported portion 12 are each provided with a bolt hole 16, as shown in FIG.

[0049] That is, a space 17 is provided inside the first supported portion 11 and the second supported portion 12. For example, the space 17 of the first supported portion 11 is a space partitioned by the upper surface, lower surface, two widthwise side surfaces of the first supported portion 11, boundary walls 18, etc.

[0050] The boundary walls 18 are wall-like members that separate the space 17 and the space Sp. The boundary walls 18 constitute the longitudinal end wall surfaces of the main body 13, i.e., the wall portions where the communication holes 15D are provided. Each boundary wall 18 is connected to the upper surface 10A, the lower surface 10B, and the widthwise side surfaces 10C, 10D of the floorboard 10, and is an integral part of the main body 13.

[0051] A reinforcing portion 19 is provided around the bolt hole 16 provided in the first supported portion 11. The reinforcing portion 19 is a cylindrical portion that surrounds the bolt hole 16 and connects the upper surface 11A and the lower surface 11B of the first supported portion 11.

[0052] A similar reinforcing portion is also provided around bolt hole 16 provided in second supported portion 12. In other words, this reinforcing portion is also a wall-like portion that connects upper surface 12A and lower surface of second supported portion 12 so as to surround bolt hole 16.

[0053] In this embodiment, as shown in FIG. 7, two bolt holes 16 are provided in each of the first supported portion 11 and the second supported portion 12, and therefore two reinforcing portions 19 are provided in each of the first supported portion 11 and the second supported portion 12.

[0054] The two reinforcing portions 19 are connected to the partition wall 18A by reinforcing walls 20A1 and 20A2, respectively, and are also connected to the side walls 11C and 11D by reinforcing walls 20B and 20C, respectively.

[0055] The partition wall 18A is a member that separates the space 17, and is connected to the upper and lower surfaces of the first supported portion 11 and the boundary wall 18. The partition wall 18A, the reinforcing portion 19, and the reinforcing walls 20A1, 20A2, 20B, and 20C are also an integral part that is molded integrally with the first supported portion 11 and the second supported portion 12 from carbon fiber reinforced plastic.

[0056] <2.4 Other components> As shown in Fig. 3, a concave cutout portion 10E is provided at one end and the other end in the width direction of the upper surface 10A of the floorboard 10. The cutout portion 10E is a portion where a worker can grip the floorboard 10 during construction.

[0057] Ribs 10F or markers (not shown) that indicate the position of the second partition wall 13C within the space Sp are provided on the widthwise side surfaces 10C and 10D of the floorboard 10. The communication holes 15C are also holes for routing cables. Incidentally, communication holes 15C through which no cables are routed may be closed with lids (not shown).

[0058] <2.5 Floorboard Fixing Methods, etc.> First, the worker piles the embankment 4 so that the position of the top surface of the embankment 4 is higher than the position of the top surface of the embankment 4 after construction is completed. Next, the worker presses the underside of the floor plate 10, i.e., the underside 10B of the main body 13, against the top surface of the embankment 4, and fastens the bolts to the first support girder 1A and the second support girder 1B.

[0059] As a result, after construction is completed, the underside of the floor plate 10, i.e., the underside 10B of the main body 13, is securely pressed against the embankment 4. Note that "pressure-contact" means that two components are in contact with each other with a contact surface pressure equal to or greater than a predetermined pressure.

[0060] It is desirable that the partition walls 13B, 13C and the widthwise side surfaces 10C, 10D are located at positions where they can directly bear the load acting on a base plate (not shown) on which the movable platform fence 2 is placed.

[0061] Specifically, after the installation work of the platform movable fence 2 is completed, it is desirable that the partition walls 13B, 13C and widthwise side surfaces 10C, 10D projected onto an imaginary horizontal plane be positioned within the base plate projected onto the horizontal plane.

[0062] In this embodiment, a plate material measuring 33 cm×33 cm is used as the base plate, and the longitudinal dimension of the cell 13D is 30 cm, and the width dimension of the cell 13D is 25 cm.

[0063] <3. Features of the floorboard according to this embodiment> The floorboard 10 according to this embodiment is made of fiber-reinforced plastic, and therefore has a smaller mass than a floorboard made of Ductal (registered trademark). This improves installation workability, and may reduce the number of steps required to install the floorboard 10.

[0064] Since the thickness direction dimension H1 of the main body 13 is larger than the thickness direction dimension H2 of the first supported portion 11 and the second supported portion 12, the lower surface 10B of the main body 13 can be brought into contact with the embankment 4 reliably.

[0065] Therefore, in the floorboard 10, the weight of the floorboard 10 and the vertical load acting on the floorboard 10 can be supported not only by the first supported portion 11 and the second supported portion 12 but also by the main body portion 13.

[0066] That is, the floorboard 10 prevents the vertical load acting on the floorboard 10 from concentrating on only the first supported portion 11 and the second supported portion 12. Consequently, the maximum stress generated in the floorboard 10 can be reduced, which may facilitate weight reduction of the floorboard 10.

[0067] When a vertical load acts on the floorboard 10, the largest bending moment usually occurs in the center of the floorboard 10 in the longitudinal direction, and the bending moment at one end and the other end of the floorboard 10 in the longitudinal direction becomes smaller.

[0068] In contrast, in the floorboard 10, the thickness direction dimension H1 of the main body 13 is larger than the thickness direction dimension H2 of the first supported portion 11 and the second supported portion 12, and therefore the bending rigidity of the main body 13 is larger than the bending rigidity of the first supported portion 11 and the second supported portion 12. Therefore, it may be possible to effectively obtain the required strength.

[0069] Incidentally, for example, when a person leans against the movable platform fence 2 and a horizontal force acts on the movable platform fence 2, a bending moment is generated that twists the floorboard 10 around the longitudinal direction of the floorboard 10 as the center line.

[0070] In contrast to this, in this embodiment, partition walls 13B and 13C that separate the space Sp are provided within the space Sp, and the partition walls 13B and 13C are connected to at least the upper and lower surfaces of the main body 13. This allows the upper surface 10A, the lower surface 10B, and the second partition wall 13C of the floorboard 10 to integrally resist the bending moment.

[0071] A space Sp in which a cable can be routed is provided within the main body 13, and communication holes 15D are provided at one and the other longitudinal ends of the main body 13. This makes it possible to utilize the main body 13 as a space for routing cables.

[0072] Furthermore, communication holes 15C are provided in the widthwise side surfaces 10C and 10D, and communication hole 15A is provided in the first partition wall 10B. This allows the work of routing cables from the outside in the widthwise direction of the floorboard 10. In other words, the worker can route the cables by bending them in the widthwise direction or by pulling the cables out.

[0073] The lower outer edges of the communication holes 15D provided at one and the other longitudinal ends of the main body 13 and the lower outer edges of the communication holes 15B provided in the second partition wall 13C are substantially aligned with the lower surface 10B of the main body 13.

[0074] As a result, even if water seeps into the space Sp, the infiltrated water can be discharged to the outside of the space Sp, that is, to the outside of the floorboard 10. In other words, if the lower outer edge of the communication hole 15D is located above the lower surface 10B of the main body 13, a wall-like portion exists below the lower outer edge of the communication hole 15D. Therefore, with this configuration, water that has entered the space Sp within the floorboard 10 cannot be drained.

[0075] A first partition wall 13B and a second partition wall 13C are provided in the space Sp, and these first partition wall 13B and second partition wall 13C are connected to the upper surface 13A and the lower surface 13B of the main body 13. This improves the bending rigidity of the floor board 10 without significantly increasing the mass of the floor board 10.

[0076] Each of the first partition walls 13B and second partition walls 13C has communication holes 15A and 15B that connect adjacent cells 13D. This connects adjacent cells 13D, allowing cables to be routed reliably within the floorboard 10.

[0077] At the upper and lower outer edges of the communication holes 15A and 15C, there are wall portions that are part of the first partition wall 13B or the widthwise side surfaces 10C and 10D. This ensures that adjacent cells 13D are connected and that each cell 13D is in communication with the outside of the floor board 10, while preventing the bending rigidity of the floor board 10 from being excessively reduced by the communication holes 15C and 15B.

[0078] A cylindrical reinforcing portion 19 is provided around bolt hole 16 of first supported portion 11, surrounding bolt hole 16, and reinforcing portion 19 connects the upper and lower surfaces of first supported portion 11. Similarly, a reinforcing portion having a similar configuration to reinforcing portion 19 is provided around bolt hole 16 of second supported portion 12.

[0079] This makes it possible to prevent the first supported portion 11 and the second supported portion 12 from being significantly deformed even when a horizontal load acts on them in addition to when a vertical load acts on them.

[0080] A reinforcing sheet portion 14 is provided at a portion of the first supported portion 11 and the second supported portion 12 that is continuous with the main body portion 13. The reinforcing sheet portion 14 is a portion where the fibers in the fiber reinforced plastic extend in a direction that intersects with the longitudinal direction and the thickness direction.

[0081] As a result, the tensile strength of the above-mentioned area is also improved in the direction intersecting the longitudinal and thickness directions, so that even if stress is concentrated at the boundary between the first supported portion 11, the second supported portion 12 and the main body portion 13, the stress concentration can be effectively countered.

[0082] In addition, the portions of the first supported portion 11 and the second supported portion 12 that are connected to the main body portion 13 are the portions of the wall portion that has a wall surface perpendicular to the width direction and extends in the longitudinal direction, which correspond to the boundary between the first supported portion 11 and the main body portion 13 and the boundary between the second supported portion 12 and the main body portion 13.

[0083] In this embodiment, the first partition wall 13B, the widthwise side wall 10C, the widthwise side wall 10D and the partition wall 18A correspond to a wall portion having a wall surface perpendicular to the width direction and extending in the longitudinal direction, and the area of ​​the wall portion around the boundary wall 18 corresponds to the above-mentioned boundary portion.

[0084] Furthermore, cutouts 10E are provided at one and the other widthwise ends of the upper surface 10A of the floorboard 10 to allow a worker to grip the floorboard 10 during construction. This allows the worker to grip the cutouts 10E, preventing interference between the worker's fingers and other floorboards 10 when arranging the floorboards 10 in the widthwise direction. This in turn makes it possible to properly install the floorboards 10 in the predetermined positions.

[0085] (Second embodiment) 8, the floorboard 10 according to this embodiment has wall portions 18B provided on the widthwise side walls 10C, 10D so as to be continuous with the boundary wall 18. In this embodiment, a reinforcing sheet portion 14 is also provided at a position connecting the first partition wall 13B and the partition wall 18A.

[0086] In this embodiment, the reinforcing fibers embedded on one side of the wall 18B and the reinforcing fibers embedded on the other side are connected without being separated by the wall 18B. Similarly, the reinforcing fibers embedded on one side of the boundary wall 18 and the reinforcing fibers embedded on the other side are connected without being separated by the boundary wall 18.

[0087] (Other embodiments) In the above-described embodiment, the plurality of first partition walls 13B and second partition walls 13C are configured to divide the space Sp into a lattice pattern. However, the present disclosure is not limited to this. That is, the present disclosure may be configured such that the space Sp is divided into a honeycomb pattern by the partition walls, for example.

[0088] In the above-described embodiment, it is assumed that a cable is routed in the space Sp. However, the present disclosure is not limited to this. That is, the present disclosure may be configured such that, for example, a member other than a cable is arranged in the space Sp.

[0089] In the above-described embodiment, it is assumed that the lower surface 10B of the main body 13 is installed in contact with the embankment 4. However, the present disclosure is not limited to this. That is, the present disclosure is also applicable to a structure in which the deck slab 10 is supported only by the first support girder 1A and the second support girder 1B, for example.

[0090] In the above-described embodiment, the lower outer edges of the communication holes 15B, 15D are substantially aligned with the lower surface 10B of the main body 13. However, the present disclosure is not limited to this. That is, the present disclosure may be configured such that, for example, a wall-like portion exists below the lower outer edges of the communication holes 15B, 15D.

[0091] In the above-described embodiment, wall portions that are part of the first partition wall 13B or the width-direction side surfaces 10C, 10D are present at the upper and lower outer edges of the communication holes 15A, 15C. However, the present disclosure is not limited to this. That is, the present disclosure may be configured such that, for example, the wall portions are not present.

[0092] In the above-described embodiment, the first partition walls 13B and the second partition walls 13C each have the communication holes 15A and 15B that connect adjacent cells 13D. However, the present disclosure is not limited to this. That is, the present disclosure may have a configuration in which the communication holes 15A and 15B are eliminated, for example.

[0093] In the above-described embodiment, the reinforcing portion 19 is provided around the bolt hole 16. However, the present disclosure is not limited to this. That is, the present disclosure may be configured such that, for example, the reinforcing portion 19 is eliminated.

[0094] In the above-described embodiment, the reinforcing sheet portion 14 is provided at least on the widthwise side surfaces 10C and 10D. However, the present disclosure is not limited to this. That is, the present disclosure may be, for example, a configuration in which the reinforcing sheet portion 14 is eliminated, a configuration in which the reinforcing sheet portion 14 is provided only at a position connecting the first partition wall 13B and the partition wall 18A, or a configuration in which the reinforcing sheet portion 14 is provided at that position and on the widthwise side surfaces 10C and 10D.

[0095] In the above-described embodiment, the outer wall of the floorboard 10 is reinforced with carbon fibers extending in the longitudinal direction and carbon fibers extending perpendicular to the longitudinal direction. However, the present disclosure is not limited to this. That is, the present disclosure may be, for example, a resin reinforced with glass fibers or a resin reinforced with fibers extending in a direction intersecting the longitudinal direction and the thickness direction.

[0096] The floorboard 10 according to the above-described embodiment has a long shape. However, the present disclosure is not limited to this. That is, the present disclosure may be directed to, for example, a floorboard whose longitudinal dimension and width dimension are the same, or a floorboard whose width dimension is greater than the longitudinal dimension. The longitudinal direction and width direction are as described above.

[0097] The present disclosure is not limited to the above-described embodiments as long as it conforms to the spirit of the disclosure described in the above-described embodiments. Therefore, the present disclosure may be a configuration in which at least two of the above-described embodiments are combined, or a configuration in which any of the components illustrated or described with reference numerals in the above-described embodiments is eliminated.

[0098] Furthermore, although the deck slab according to the above-described embodiment is an example applied to a platform, the present disclosure is not limited thereto. That is, the present disclosure may also be applied to, for example, a deck slab of a building. [Explanation of symbols]

[0099] 1... Platform 1A... 1st support beam 1B... 2nd support beam 2... Movable platform fence 3... Steel pipe pile 3C... First partition wall 4... Embankment 10... Floor board 11... First supported part 12... Second supported portion 13... Main body portion 13B... First partition wall 13C: Second partition wall 14: Reinforcement sheet portion 15A-15D: Communication holes 16... Bolt hole 18... Boundary wall 19... Reinforcement 20A~20C... Reinforced wall

Claims

1. A floor panel is arranged to bridge a first support girder and a second support girder arranged at a position spaced apart from the first support girder, a first supported portion supported by the first support girder, the first supported portion being made of fiber reinforced plastic; A second supported portion supported by the second support girder, the second supported portion being made of fiber reinforced plastic; a main body portion that connects the first supported portion and the second supported portion and is an integral part of the first supported portion and the second supported portion, the main body portion being made of fiber reinforced plastic; When the direction parallel to the direction from the first supported portion toward the second supported portion is defined as the longitudinal direction, and the direction perpendicular to the longitudinal direction and coinciding with the up-down direction when the first supported portion is supported by the first support girder and the second supported portion is supported by the second support girder is defined as the thickness direction, a thickness direction dimension of the main body portion is larger than thickness direction dimensions of the first supported portion and the second supported portion, and an upper surface of the main body portion, an upper surface of the first supported portion, and an upper surface of the second supported portion are substantially flush with each other; When the direction perpendicular to the longitudinal direction and thickness direction is the width direction, The container has a wall surface perpendicular to the width direction and a wall portion extending in the longitudinal direction, A floorboard in which a reinforcing sheet portion is provided at the boundary between the first supported portion and the main body portion and at the boundary between the second supported portion and the main body portion of the wall portion, in which the fibers in the fiber-reinforced plastic extend in a direction that intersects the longitudinal direction and thickness direction.

2. A floor plate arranged to bridge a first support girder and a second support girder arranged at a position spaced apart from the first support girder, a first supported portion supported by the first support girder, the first supported portion being made of fiber reinforced plastic; A second supported portion supported by the second support girder, the second supported portion being made of fiber reinforced plastic; a main body portion that connects the first supported portion and the second supported portion and is an integral part of the first supported portion and the second supported portion, the main body portion being made of fiber reinforced plastic; When the direction parallel to the direction from the first supported portion toward the second supported portion is defined as the longitudinal direction, and the direction perpendicular to the longitudinal direction and coinciding with the up-down direction when the first supported portion is supported by the first support girder and the second supported portion is supported by the second support girder is defined as the thickness direction, a thickness direction dimension of the main body portion is larger than thickness direction dimensions of the first supported portion and the second supported portion, and an upper surface of the main body portion, an upper surface of the first supported portion, and an upper surface of the second supported portion are substantially flush with each other; The main body portion has a space in which at least a cable can be routed, Furthermore, at least one end and the other end of the main body in the longitudinal direction are provided with a communication hole that connects the space with the outside, a partition wall is provided within the space to divide the space into a plurality of spaces, the partition wall being connected to at least an upper surface and a lower surface of the main body portion; Furthermore, the partition wall has a second communication hole formed in the floor panel, which connects adjacent spaces separated by the partition wall.

3. When the direction perpendicular to the longitudinal direction and thickness direction is defined as the width direction, a third communication hole that connects the space described in claim 2 with the outside and that penetrates the main body in the width direction is provided at one end side and the other end side of the main body in the width direction, Furthermore, the lower end outer edge of the third communicating hole is located above the lower surface of the main body portion, and the upper end outer edge of the third communicating hole is located below the upper surface of the main body portion.

4. The first supported portion is provided with a first bolt hole through which a bolt for fixing the first supported portion to the first support girder is inserted; The second supported portion is provided with a second bolt hole through which a bolt for fixing the second supported portion to the second support girder is inserted, A space is provided inside the first supported portion and the second supported portion, A floorboard described in any one of claims 1 to 3, further comprising a wall-shaped first reinforcing portion provided around the first bolt hole, connecting the upper and lower surfaces of the first supported portion so as to surround the first bolt hole, and a wall-shaped second reinforcing portion provided around the second bolt hole, connecting the upper and lower surfaces of the second supported portion so as to surround the second bolt hole.

5. When the direction perpendicular to the longitudinal direction and thickness direction is defined as the width direction, The container has a wall surface perpendicular to the width direction and a wall portion extending in the longitudinal direction, A floorboard as described in claim 2 or 3, wherein the boundary portion between the first supported portion and the main body portion and the boundary portion between the second supported portion and the main body portion of the wall portion are provided with a reinforcing sheet portion in which fibers in the fiber-reinforced plastic extend in a direction intersecting the longitudinal direction and thickness direction.

6. A space is provided within the main body portion in which at least a cable can be routed, The floor panel according to claim 1, further comprising a communication hole provided at least at one end and the other end in the longitudinal direction of the main body portion for connecting the space with the outside.

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