Home structure

Abstract

To provide a platform structure that can be constructed with high workability and can withstand external forces acting on a platform fence. [Solution] A platform fence 2 is provided to prevent intrusion onto the track 100, and a platform slab 10 constructed on the ground 200 is provided with a track-side slab member 30 arranged on the side of the track 100 and a rear slab member 40 arranged on the rear side Db, and a plurality of connecting hardware 50 connecting the slab members 30, 40 in the depth direction D are provided at predetermined intervals in the track direction R, and are provided on the opposing side of the track-side slab member 30 with a convex connecting portion 70 having a bolt head 712 that protrudes towards the rear side Db and engages with it, and a concave connecting portion 60 on the opposing side of the rear slab member 40 with an engaging slit 64 that is concave and engages with the bolt head 712.

Description

[Technical Field]

[0001] The present invention relates to a platform structure that constitutes a platform, for example, in which platform fences that prevent intrusion onto the tracks are provided on a slab. [Background technology]

[0002] Platform structures installed along the tracks may be equipped with platform fences on the track side above the slab, as disclosed in Patent Document 1, for example, to prevent people from inadvertently entering the tracks. Such platform gates are heavy because they open and close automatically, and are also placed on the track side above the slab.

[0003] In addition, the slabs that make up the platform structure may be installed in a state where they are fastened and fixed with bolts or the like onto a supporting structure such as a steel frame structure, or may be placed on the ground such as a floored surface or an embankment surface.

[0004] In addition, the platform fence, which is placed on the track side on the slab, is subjected to external forces such as wind from passing trains and collisions with passengers from the platform side. Specifically, when external forces such as wind from running trains or collisions act on the platform fence installed on the slab, depending on the direction of the external force, there is a risk that the slab may attempt to move in a direction perpendicular to the track direction and perpendicular to the up-and-down direction along the track, or may rotate with the base of the platform fence as a fulcrum, causing the slab to float up or sink down.

[0005] Thus, even if an external force acting on the platform fence acts on the slab, if the slab is fastened to the support structure with bolts or the like, it will resist together with the support structure, making it unlikely that the above-mentioned movement or rotation in the perpendicular direction will occur. In contrast, if the slab is placed on the ground, such as a floor or embankment, it is not possible to fix the slab to the ground surface, and it is necessary to resist the external force acting on the slab by its own weight. In this way, to resist the external force by its own weight, the slab becomes large, which places a heavy burden on on-site workers and makes construction less easy to do, so a platform structure with even greater workability has been desired. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 2018-144764 Summary of the Invention [Problem to be solved by the invention]

[0007] In view of the above-mentioned problems, the present invention aims to provide a platform structure that can be constructed with high workability and that can withstand external forces acting on the platform fence. [Means for solving the problem]

[0008] This invention relates to a platform structure constructed on the ground, in which a platform fence for preventing intrusion onto the track is provided on a slab, constituting a platform, wherein the direction along the track is defined as the track direction, and the direction perpendicular to the track direction and the up-down direction is defined as the orthogonal direction, the slab is disposed on the track side and is provided with the platform fence, and comprises a first slab having a predetermined thickness, and a second slab having a predetermined thickness and disposed on the opposite side of the first slab from the track in the orthogonal direction, and connecting means for connecting the first slab and the second slab in the orthogonal direction, a plurality of the connecting means being provided at predetermined intervals in the track direction, and comprising: a convex connecting body provided on one of the opposing side surfaces of the first slab and the second slab facing each other, the convex connecting body having a locking claw portion that protrudes toward the other side and locks; and a concave connecting body provided on the other opposing side surface, the convex connecting body having a locking recess that becomes a recess into which the locking claw portion locks. The recessed connecting body has a slit extending in the vertical direction and having at least one of its upper and lower ends open. It is characterized by the fact that

[0009] The above-mentioned ground includes an embankment, a bedding surface that has been excavated and bedding, a laying surface on which ballast or the like has been laid, or ground that is separated by a stone wall or retaining wall or the like. The locking claw portion may be, for example, the head of a bolt provided so as to protrude from one of the first slab and the second slab, or a member that is hook-shaped or T-shaped in plan view.

[0010] This invention allows for highly efficient construction and is able to withstand external forces acting on the platform fence. In more detail, a platform fence constructed on the ground to prevent intrusion onto the track is provided on the slab, and the slab of the platform structure constituting the platform is disposed on the track side and is provided with the platform fence, and is provided with a first slab of a predetermined thickness, and a second slab of a predetermined thickness that is disposed on the opposite side of the first slab from the track in the perpendicular direction, and is provided with connecting means that connects the first slab and the second slab in the perpendicular direction. Therefore, the slab can be made smaller than when constructed with a single slab, and workability in constructing the slab can be improved.

[0011] The connecting means includes a convex connector provided on one of the opposing side surfaces of the first slab and the second slab that face each other and having a locking claw portion that protrudes toward the other side surface and locks thereto, and a concave connector provided on the opposing side surface of the other slab and having a locking recess that is a recess into which the locking claw portion locks. Therefore, one of the first slab and the second slab is placed on the ground in advance, and when the other is placed, the locking claw portion of the convex connector provided on one of the opposing side surfaces can be locked into the locking recess of the concave connector provided on the opposing side surface of the other slab, thereby connecting the first slab and the second slab in the orthogonal direction and integrating them.

[0012] Furthermore, since the connecting means is provided on the opposing sides of the first slab and the second slab that face each other, the first slab and the second slab can be easily connected to each other by placing one of the first slab and the second slab on the ground in advance so that the opposing sides on which the connecting means are provided face each other, and then placing the other of the first slab and the second slab on top of the first slab and the second slab that have been placed on the ground in advance. Furthermore, since a plurality of the connecting means are provided at predetermined intervals in the track direction, the first slab and the second slab can be connected more securely in the orthogonal direction.

[0013] Also,The recessed connecting body has a slit extending in the vertical direction and having at least one of its upper and lower ends open. There are . Therefore By inserting a convex connecting body having a locking claw portion into the slit from at least one of the open portions at the upper and lower ends, the convex connecting body can be locked into the locking recess formed by the slit, thereby connecting the two.

[0014] As another aspect of the present invention, a guide portion may be formed at the open end of the slit, the groove width of which gradually widens toward the end. According to this invention, the guide portion guides the convex connector, so that the convex connector having the locking claw portion can be inserted into the slit more easily.

[0015] As another aspect of the present invention, a plurality of the convex connectors may be provided so as to be engaged with the slits at predetermined intervals in the vertical direction. This invention makes it possible to more reliably resist external forces acting on the platform fence.

[0016] In detail, the multiple convex connecting bodies are inserted into the slit at a predetermined interval in the vertical direction and engaged with the slit, so that even if an external force acts on the slab causing it to float or sink, the engaging claw portions of the multiple convex connecting bodies inserted into the slit at a predetermined interval will engage with the slit, allowing the slab to more efficiently resist such external forces.

[0017] In another aspect of the present invention, the concave connecting body may form part of the opposing side surfaces and have a main surface portion in which the slit is provided, and side portions provided on both sides of the main surface portion in the width direction and protruding toward the inside of the slab, so that a space is formed inside the slab. According to this invention, the space formed inside the slab allows the convex connector having the locking claw portion to be easily inserted into the slit, and the locking claw portion can be locked and connected.

[0018] In another aspect of the present invention, the side portions may be formed so that the spacing between them increases upward. According to this invention, the state of engagement of the engagement claw portion of the convex connecting body engaged with the slit can be easily adjusted.

[0019] In another aspect of the present invention, the convex connecting body may be composed of a screw recess provided on the opposing side surface and a bolt that screws into the screw recess, and the locking claw portion may be composed of the bolt head of the bolt. According to this invention, by screwing a bolt into the opposing side surface, the convex connecting body protruding from the opposing side surface toward the other side can be easily provided. Also, since the bolt head functions as the locking claw, it is possible to configure the locking claw that can be locked into the slit more easily than if the locking claw were formed separately.

[0020] As another aspect of the present invention, a spring washer may be provided that fits over the bolt shank of the bolt and is disposed between the back side of the main surface portion and the bolt head in a locked state. The spring washer is also called a disc spring, and may be used singly or in a stack of multiple spring washers. When multiple spring washers are stacked, they may be installed facing the same direction, or they may be stacked in a staggered manner. According to this invention, the fastening state of the bolts can be stabilized, and therefore the first slab and the second slab can be stably connected.

[0021] In another aspect of the present invention, the spring washer may be formed in a generally truncated cone shape in side view having a small diameter portion and a large diameter portion, and a plurality of the spring washers may be arranged in a stacked manner. According to this invention, the spring washer, which is formed in a generally truncated cone shape in side view, becomes flat due to axial force, allowing an axial repulsive force to act on the main surface. Furthermore, by stacking multiple spring washers, the axial repulsive force can be adjusted by the number of sheets. Therefore, a predetermined repulsive force can be applied to the main surface.

[0022] In a further aspect of the present invention, a recessed portion into which at least a portion of the spring washer in a connected state is fitted may be provided along the slit on the rear side of the main surface portion. With this invention, in the connected state, at least a portion of the spring washer is fitted into the recessed portion with a repulsive force acting on it, so even if the bolt engaging the slit tries to inadvertently slip out of the slit, at least a portion of the spring washer is fitted into the recessed portion, preventing the bolt from accidentally slipping out of the slit.

[0023] As a further aspect of the present invention, two of the bolts may be provided at a predetermined interval in the vertical direction, and the recessed portion may be provided at a position corresponding to the two bolts. According to this invention, two bolts arranged at a predetermined distance in the vertical direction are both engaged in the slits, so that bending of the first slab and the second slab in the connected state can be resisted.

[0024] In another aspect of the invention, of the two bolts, the bolt that is positioned at the rear side of the slit when connected is designated as the rear locking bolt, and the bolt that is positioned at the front side of the slit is designated as the front locking bolt, and the spring washer that is fitted onto the rear locking bolt has a larger diameter on the side of the main surface, and the spring washer that is fitted onto the front locking bolt has a smaller diameter on the side of the main surface, and the recessed portion corresponding to the rear locking bolt is formed with a larger diameter than the recessed portion corresponding to the front locking bolt. According to this invention, the spring washer fitted onto the rear locking bolt can be smoothly connected without getting caught in the recessed portion into which the spring washer fitted onto the front locking bolt fits.

[0025] The above-mentioned near side of the slit refers to the open side of the slit provided in the main surface portion, and the far side of the slit refers to the side opposite to the open side of the slit provided in the main surface portion.

[0026] In another aspect of the present invention, the first slabs and the second slabs may be arranged in plurality along the track direction, and connecting plates may be provided to connect the first slabs to each other and the second slabs to each other in the track direction. According to the present invention, the slab can be configured to be long in the track direction.

[0027] In another aspect of the present invention, the slab may be made of precast concrete. According to this invention, workability can be improved compared to when the slab is constructed by pouring concrete at the construction site. [Effects of the Invention]

[0028] The present invention makes it possible to provide a platform structure that can be constructed with high workability and that can withstand external forces acting on the platform fence. [Brief explanation of the drawings]

[0029] [Figure 1] Schematic cross-sectional view of a platform structure. [Figure 2] FIG. [Figure 3] Exploded perspective view of the home slab. [Figure 4] FIG. [Figure 5] 1 is a flowchart of a method for building a home structure. [Figure 6] FIG. 1 is an explanatory diagram illustrating a method for constructing a home structure. [Figure 7] FIG. 1 is an explanatory diagram illustrating a method for constructing a home structure. [Figure 8] FIG. 1 is an explanatory diagram illustrating a method for constructing a home structure. [Figure 9] FIG. 1 is an explanatory diagram illustrating a method for constructing a home structure. [Figure 10] FIG. 10 is a schematic perspective view of a platform structure according to a second embodiment. [Figure 11] FIG. 10 is an exploded perspective view of a home slab according to a second embodiment. [Figure 12] FIG. 10 is an explanatory diagram of a concave connecting portion of the second embodiment. [Figure 13] FIG. 10 is an explanatory diagram illustrating a method for constructing a platform structure according to a second embodiment. [Figure 14] FIG. 10 is an explanatory diagram illustrating a method for constructing a platform structure according to a second embodiment. [Figure 15] FIG. 10 is an explanatory diagram illustrating a method for constructing a platform structure according to a second embodiment. [Figure 16] FIG. 10 is an explanatory diagram of a concave coupling portion of the third embodiment. [Figure 17] FIG. 10 is an explanatory diagram of a convex connecting portion of the third embodiment. [Figure 18] FIG. 10 is an explanatory diagram of a connecting method of connecting hardware according to the third embodiment. [Figure 19] FIG. 10 is an explanatory diagram of a concave coupling portion of the fourth embodiment. [Figure 20] FIG. 10 is an explanatory diagram of a convex connecting portion of the fourth embodiment. [Figure 21] FIG. 10 is an explanatory diagram of a method for connecting metal connectors according to a fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0030] An embodiment of the present invention will be described below with reference to the drawings. (First embodiment) A home structure 1 and a home slab 10 used in the home structure 1 according to the first embodiment will be described below with reference to FIGS. 1 to 9. FIG.

[0031] FIG. 1 shows a schematic cross-sectional view of the home structure 1, FIG. 2 shows a schematic oblique view of the home structure 1, FIG. 3 shows an exploded oblique view of the home slab 10, FIG. 4 shows an explanatory diagram of the concave connecting portion 60, FIG. 5 shows a flowchart of the construction method of the home structure 1, and FIGS. 6 to 9 show explanatory diagrams explaining the construction method of the home structure 1.

[0032] Fig. 2 is a schematic perspective view showing the front, top, and right side of the platform structure 1, and Fig. 3 is an exploded perspective view showing the front, top, and right side of the platform slab 10. In Fig. 2, the platform fence 2 is shown in a see-through state. 4(a) is a perspective view showing the front, bottom and left side of the concave connecting portion 60, and FIG. 4(b) is a perspective view showing the back, top and right side of the concave connecting portion 60. FIG.

[0033] Figure 6(a) shows a schematic cross-sectional view of part a in Figure 1 upon completion of the flooring process (step s1), Figure 6(b) shows a schematic cross-sectional view of part a in Figure 1 upon completion of the track side slab installation process (step s3), Figure 6(c) shows a schematic cross-sectional view of part a in Figure 1 upon completion of the connecting bolt installation process (step s4), and Figure 6(d) shows a schematic cross-sectional view of part a in Figure 1 upon completion of the rear side slab installation process (step s5).

[0034] Figure 7(a) is a schematic perspective view showing the back, top, and right side of the track-side slab member 30 installed in the track-side slab installation step (step s3) before the rear slab member 40 is installed in the rear slab installation step (step s5), and Figure 7(b) is a schematic perspective view showing the back, top, and right side of the track-side slab member 30 after the rear slab member 40 has been installed in the rear slab installation step (step s5). Note that in Figure 7, the connecting hardware 50 (60, 70) provided on the track-side slab member 30 and the rear slab member 40 is shown in a transparent state to clearly show the interior, but internal reinforcing bars and the like are omitted.

[0035] Figure 8(a) is a schematic oblique view showing the front, top, and right side of the track side slab member 30 installed in the track side slab installation process (step s3) before the rear slab member 40 is installed in the rear slab installation process (step s5), and Figure 8(b) is a schematic oblique view showing the front, top, and right side of the track side slab member 30 after the rear slab member 40 has been installed in the rear slab installation process (step s5).

[0036] Figure 9(a) is a schematic oblique view showing the front, top, and right side of the state before the track side slab member 30 is further installed on the end side Re of the installed connecting slab 20 in the track side slab installation process (step s3), and Figure 9(b) is a schematic oblique view showing the front, top, and right side of the state before the rear side slab member 40 is installed in the rear side slab installation process (step s5) on the track side slab member 30 that has been further installed in the track side slab installation process (step s3).

[0037] Here, the up-and-down direction in FIG. 2 is the height direction H, the direction connecting the upper left and lower right is the track direction R, and the direction connecting the lower left and upper right is the depth direction D. Furthermore, the upper side of the height direction H is referred to as the upper side Hu, and the lower side is referred to as the lower side Hd. In the track direction R connecting the upper left and lower right, the upper left side is referred to as the end side Re, the lower right side is referred to as the start side Rs, and in the depth direction D connecting the lower left and upper right, the lower left side is referred to as the front side Df, and the upper right side is referred to as the back side Db. Note that in the description of this embodiment, for convenience of explanation, as described above, the upper left side of the track direction R connecting the upper left and lower right is referred to as the end side Re and the lower right side is referred to as the start side Rs. However, the upper left side may also be referred to as the start side Rs and the lower right side as the end side Re. Furthermore, the above directions are used not only in the description of the platform structure 1 but also in the description of the platform slab 10, and the same applies hereinafter in FIGS. 2 to 15.

[0038] As shown in Figure 1, the platform structure 1 is placed on the ground 200 provided next to the track 100, and is arranged above the track 100 at Hu. It is composed of a platform slab 10 that is long in the track direction R, and a platform fence 2 that is fixed to the front side Df of the platform slab 10 on the side of the track 100, protrudes above Hu, and is long in the track direction R.

[0039] The home structure 1 will be described in detail below. The platform structure 1 is provided on the rear side Db of the track 100 extending in the track direction R, and the ground 200 on which the platform slab 10 is provided has a retaining wall 210 made of stonework or blocks provided next to the track 100, and an H-shaped steel 220 is arranged on top of it along the track direction R.

[0040] On the rear side Db of the H-shaped steel 220, there is provided a roadbed 230 formed at a predetermined thickness on a bedding surface that is bedding at a predetermined height relative to the ground, and a roadbed 240 laid on top of the roadbed 230, and a home slab 10 is placed on the top surface of the roadbed 240. Furthermore, as described above, the platform fence 2 is fixed to the upper surface of the platform slab 10 placed on the roadbed 240, and decorative panels 11 are installed in areas where the platform fence 2 is not present.

[0041] The home slab 10 is formed by arranging multiple connecting slabs 20 in parallel in the track direction R, each of which is formed by connecting a track-side slab member 30 located on the front side Df close to the track 100 and a rear-side slab member 40 located on the rear side Db away from the track 100 in the depth direction D with connecting hardware 50, and then connecting them with connecting plates 80 to form a predetermined rectangular shape when viewed from above.

[0042] Next, the track-side slab member 30 and the rear-side slab member 40 that constitute the home slab 10 (connecting slab 20) will be described. The slab members 30, 40 that make up the connecting slab 20 are identical in configuration except for the concave connecting portion 60 and the convex connecting portion 70 that make up the connecting hardware 50 described below, so we will first explain the common configuration.

[0043] The slab members 30, 40 are rectangular in plan view, longer in the track direction R than in the depth direction D, have a predetermined thickness, and are plate-like members made of precast reinforced concrete with predetermined reinforcing bars arranged inside, although this is not shown in Figure 7.

[0044] On the top surfaces of the slab members 30, 40, connecting grooves 31, 41 are provided along the track direction R at the centers of both short sides along the depth direction D of the rectangular shape in plan view, to which a connecting plate 80, described below, is attached (see Figures 2 and 3). The connecting grooves 31, 41 are formed with a length half the length of the connecting plate 80 in the track direction R and a depth approximately twice the thickness of the connecting plate 80, and bolt holes are provided at the bottom of the grooves for fastening bolts (not shown) that fasten and fix the connecting plate 80.

[0045] The difference is that the rear slab member 40 has a concave connecting portion 60 that forms the connecting hardware 50, while the track side slab member 30 has a convex connecting portion 70 that, together with the concave connecting portion 60, forms the connecting hardware 50. Specifically, the slab members 30, 40 are formed in a rectangular shape in plan view and are provided with connecting portions 60, 70 that constitute the connecting hardware 50 on their side surfaces facing in the depth direction D.

[0046] Therefore, the rear slab member 40 placed on the rear side Db in the depth direction D has a concave connecting portion 60 on the side surface on the front side Df, and the track side slab member 30 placed on the front side Df has a convex connecting portion 70 on the side surface on the rear side Db. As shown in Figure 4, the concave connecting portion 60 provided on the side surface of the front side Df of the rear slab member 40 is formed in a U-shape in a plan view, consisting of a front panel 61 that is inverted trapezoidal when viewed from the front, and side panels 62 that extend from both side ends of the front panel 61 toward the thickness direction of the front panel 61 (toward the rear side Db), and is equipped with anchoring reinforcement bars 63 that extend further from the side panels 62 toward the thickness direction of the front panel 61 (toward the rear side Db).

[0047] More specifically, the front plate 61 has an inverted trapezoidal shape with the same height as the thickness of the rear slab member 40, and is provided with a groove-like engagement slit 64 in its widthwise center, extending from the lower end Hd toward the upper end Hu. The engagement slit 64 is formed to a height that leaves a predetermined height, and the lower end Hd is open, and its lower end is chamfered to form a guide portion 65 whose width gradually increases toward the lower end. The engagement slit 64 is formed with a groove width that is wider than the diameter of the bolt shank 711 of the locking bolt 71 of the convex connecting portion 70 described below, but narrower than the minor axis of the bolt head 712 of the locking bolt 71.

[0048] The anchoring bars 63 are made of deformed steel bars of a predetermined length, and are provided two on each side, for a total of four. The two anchoring bars 63 on each side are spaced a predetermined distance apart in the height direction H. The anchoring bars 63 are fixed to the side panel 62 so as to protrude in the thickness direction (towards the rear side Db) from a position slightly inside the end on the front panel 61 side.

[0049] The recessed connecting portion 60 configured in this manner is arranged so that the front plate 61 is aligned with the side surface of the front side Df of the rear slab member 40. Therefore, the side plate 62 and the anchoring reinforcement 63 are embedded inside the rear slab member 40. An internal space 66 is formed, which is surrounded by the front plate 61 and the side plate 62 and protrudes further toward the rear side Db than the side plate 62 (see Figures 2 and 3).

[0050] As described above, the engagement slit 64, which is provided in the center of the front plate 61 of the concave connecting portion 60 and has an open lower side Hd, remains open even when the concave connecting portion 60 is disposed in the rear slab member 40. The concave connecting portions 60 are provided at two locations in the rear slab member 40 in the track direction R, spaced a predetermined distance apart.

[0051] The convex connecting portion 70 provided on the side surface of the rear side Db of the track side slab member 30 includes a locking bolt 71 consisting of a bolt shank 711 and a bolt head 712, a spring washer 72 fitted onto the bolt shank 711 of the locking bolt 71, and a screw anchor 73 embedded in the side surface of the rear side Db of the track side slab member 30 and into which the locking bolt 71 is screwed, as shown in Figures 3, 6 and 7.

[0052] The spring washer 72 is formed in a generally truncated cone shape in side view, having a small diameter portion and a large diameter portion, and is a washer that elastically deforms and generates a reaction force when a force is applied in the thickness direction, and multiple sheets are stacked together. In this embodiment, three spring washers 72 are stacked together, as shown in Figures 3 and 6(b). In this embodiment, three spring washers 72 are stacked in the same direction, as shown in the enlarged view of part b in Figure 3 and the enlarged view of part c in Figure 6(b), but they may also be stacked in a staggered manner, i.e., with their orientations changed.

[0053] The screw anchor 73 is an anchor having a threaded hole into which the bolt shank 711 of the locking bolt 71 screws, and is embedded in the track side slab member 30 so that the threaded hole is exposed from the side surface of the rear side Db of the track side slab member 30. As described above, the convex coupling portion 70 configured in this manner can be constructed by embedding the screw anchor 73 in the track-side slab member 30 so that the threaded hole is exposed from the side surface of the rear side Db of the track-side slab member 30, and screwing the bolt shank 711 onto the screw anchor 73 with the spring washer 72 fitted around the bolt shank 711. In this case, the bolt head 712 of the locking bolt 71 is positioned at a distance approximately equal to the combined thickness of the front plate 61 of the concave coupling portion 60 and the spring washer 72 from the side surface of the rear side Db of the track-side slab member 30.

[0054] A plurality of convex connecting portions 70 configured in this manner are provided at predetermined intervals in the height direction H. In this embodiment, two convex connecting portions 70 are provided as shown in Fig. 6(b). Furthermore, as described above, two convex connecting portions 70 are provided at positions corresponding to two concave connecting portions 60 provided at a predetermined interval in the track direction R.

[0055] Next, the connecting plate 80 that connects the slab members 30, 40 in the track direction R will be described. The connection plate 80 is a strip-shaped metal plate having a predetermined length in the track direction R, and has insertion holes for inserting fastening bolts (not shown) at positions approximately 1 / 4 of the total length from both ends.

[0056] In the home slab 10, in which each element is configured as described above, the track-side slab member 30 and the rear slab member 40 are arranged side by side in the depth direction D. At this time, the rear slab member 40 is arranged with the side surface with the concave connecting portion 60 facing the front side Df, and the track-side slab member 30 is arranged on the front side Df of the rear slab member 40 with the side surface with the convex connecting portion 70 facing the rear side Db.

[0057] By arranging the track side slab member 30 and the rear side slab member 40 in the orientation described above, the concave connecting portion 60 of the rear side slab member 40 and the convex connecting portion 70 of the track side slab member 30 engage with each other in the depth direction D to form the connecting hardware 50. More specifically, the bolt shank 711 of the locking bolt 71 protruding from the side surface of the rear side Db of the track-side slab member 30 is inserted into the engagement slit 64 of the front plate 61 exposed on the side surface of the front side Df of the rear slab member 40. At this time, as shown in FIG. 6 , the bolt head 712 and spring washer 72 of the locking bolt 71 are disposed in the internal space 66 on the back side (rear side Db) of the front plate 61 of the concave coupling portion 60, allowing the concave coupling portion 60 and the convex coupling portion 70 to be engaged in the depth direction D. Specifically, the spring washer 72 is disposed between the back side of the front plate 61 and the bolt head 712 while being biased in the depth direction D.

[0058] As described above, the track-side slab member 30 and the rear slab member 40, which are arranged in parallel in the depth direction D, are connected in the depth direction D by the connecting hardware 50, which engages the concave connecting portion 60 of the rear slab member 40 and the convex connecting portion 70 of the track-side slab member 30 in the depth direction D, thereby forming a connected slab 20.

[0059] Furthermore, multiple connecting slabs 20 formed by connecting slab members 30, 40 are arranged in the track direction R and connected by connecting plates 80. Specifically, the rear slab member 40 of another connecting slab 20 is arranged parallel to the track direction R of the rear slab member 40 that constitutes the connecting slab 20, and the track side slab member 30 of another connecting slab 20 is arranged parallel to the track direction R of the track side slab member 30.

[0060] At this time, the connecting groove 41 of the rear slab member 40 and the connecting groove 41 of the rear slab member 40 of another connecting slab 20 face each other in the track direction R, so the connecting plate 80 is positioned so as to straddle both connecting grooves 41, and fastening bolts (not shown) are screwed into the bolt holes provided in each connecting groove 41, thereby connecting the rear slab members 40 to each other in the track direction R.

[0061] Similarly, the connecting groove 31 of a track side slab member 30 and the connecting groove 31 of a track side slab member 30 of another connecting slab 20 face each other in the track direction R, so by positioning a connecting plate 80 so as to straddle both connecting grooves 31 and screwing fastening bolts (not shown) into the bolt holes provided in each connecting groove 31, the track side slab members 30 can be connected to each other in the track direction R.

[0062] Therefore, by arranging connecting slabs 20, each made up of a track-side slab member 30 and a rear-side slab member 40, in parallel in the track direction R and connecting them with a connecting plate 80, it is possible to form a platform slab 10 made up of a predetermined number of slab members 30, 40. Then, by installing a platform fence 2 along the track direction R on the front side Df of the platform slab 10, which connects the connecting slabs 20 in the track direction R, it is possible to form a platform structure 1.

[0063] The connecting hardware 50 connects the track-side slab member 30 and the rear slab member 40 in the depth direction D, and the connecting plate 80 connects the rear slab members 40 that make up the connecting slab 20 together and the track-side slab members 30 together. However, the connection between the track-side slab member 30 and the rear slab member 40 by the connecting hardware 50 means that they are connected in a state where an external force acting on one can be transmitted to the other, while the connection between the rear slab members 40 and the track-side slab members 30 by the connecting plate 80 means that they are connected in a state where an external force acting on one cannot be fully transmitted to the other.

[0064] Next, a method for constructing the home structure 1 will be described with reference to FIGS. First, in constructing the platform structure 1, a platform slab 10 is laid at an installation location on the ground 200 (laying step: step s1).

[0065] Specifically, the installation location in the ground 200 is excavated or banked to a predetermined height, and the roadbed 230 is laid with a predetermined unrolled thickness. Then, the roadbed 240 is further laid with a predetermined unrolled thickness on top of the roadbed 230, and level adjustment is performed to reach a predetermined height in order to place the slab members 30, 40 (level adjustment step: step s2).

[0066] As shown in Fig. 6(a), the track-side slab member 30 closest to the track 100, i.e., the track-side slab member on the near side Df, is installed on the level-adjusted roadbed 240 (track-side slab member installation step: step s3), and the locking bolt 71 with the spring washer 72 fitted around the bolt shank 711 is screwed onto the screw anchor 73 exposed on the side surface of the far side Db, as shown in Fig. 6(b), to form the convex connecting portion 70 (connecting bolt installation step: step s4). At this time, the track-side slab member 30 on the near side Df may be placed on the top surface of the H-shaped steel 220.

[0067] Next, the rear slab member 40 is installed on the track-side slab member 30 to which the locking bolts 71 and spring washers 72 have been attached (rear slab member installation process: step s5). Specifically, as shown in Figures 6(c), 7(a) and 8(a), the rear slab member 40 is positioned so that the side surface on the front side Df is above Hu the side surface on the rear side Db of the track-side slab member 30 that has already been installed, and then lowered downward Hd.

[0068] Then, the locking bolt 71 and spring washer 72 of the convex connecting portion 70 protruding from the side surface of the rear side Db to the rear side Db are inserted into the engagement slit 64 of the front plate 61 whose lower side Hd is open, as shown in the enlarged view of part d in Figure 6(d). At this time, the guide portion 65 is provided at the end of the lower side Hd of the engagement slit 64, so the locking bolt 71 can be smoothly inserted into the engagement slit 64.

[0069] Furthermore, the bolt head 712 of the locking bolt 71 arranged in the internal space 66 on the rear side Db of the front plate 61 is tightened to complete the connection by the connecting hardware 50 (connecting bolt tightening step: step s6), and the connecting slab 20 is formed.

[0070] Here, if this is the first placement of the connecting slabs 20 (step s7: No) and the placement of the connecting slabs 20 in the track direction R has not been completed (step s9: No), return to the level adjustment process (step s2) and perform the above-mentioned process as shown in Figure 9(a) to arrange the connecting slabs 20 side by side in the track direction R.

[0071] After the connecting bolt tightening process (step s6) is completed, it becomes necessary to connect to another connecting slab 20 that has already been installed in the track direction R (step s7: Yes), and as shown in Figure 9(b), the track side slab members 30 and the rear side slab members 40 that are arranged side by side in the track direction R are connected with connecting plates 80 (connecting plate installation process: step s8).

[0072] This is repeated for the required extension length in the track direction R, and when connecting slabs 20 for the required extension length have been constructed and connected with connecting plates 80 (step s9: Yes), construction of the platform slab 10 is completed, and decorative panels 11 are laid on the top surface of the platform slab 10 (decorative panel installation process: step s10), and platform fences 2 are installed (platform fence installation process: step s11), and construction of the platform structure 1 is completed.

[0073] The platform slab 10 constructed in this manner and the platform structure 1 using the platform slab 10 are constructed on the ground 200 as described above, and the platform fence 2 that prevents intrusion onto the track 100 is provided on the platform slab 10 to form a platform. The direction along the track 100 is the track direction R, and the direction perpendicular to the track direction R and the height direction H is the depth direction D. The platform slab 10 is arranged on the side of the track 100 and is provided with the platform fence 2. The platform slab 10 is made up of a track-side slab member 30 having a predetermined thickness, and a rear-side slab member 40 that is arranged on the rear side Db in the depth direction D with respect to the track-side slab member 30 and has a predetermined thickness. A connecting hardware 50 is provided that connects the track-side slab member 30 and the rear slab member 40 in the depth direction D, and a plurality of connecting hardware 50 are provided at predetermined intervals in the track direction R, and are provided on the side of the track-side slab member 30 on the opposing sides of the slab members 30, 40, and are each provided with a convex connecting portion 70 that has a bolt head 712 that protrudes toward the rear side Db and engages with it, and a concave connecting portion 60 that is provided on the opposing side of the rear slab member 40 and has an engaging slit 64 that is concave and engages with the bolt head 712, so that the platform fence 2 can be constructed with high workability and can withstand external forces acting on the platform fence 2.

[0074] More specifically, platform fences 2 that prevent intrusion onto the track 100, which is constructed on the ground 200, are provided on the platform slab 10, and the platform slab 10 of the platform structure 1 that constitutes the platform is arranged on the side of the track 100 and is provided with the platform fences 2, and is provided with track-side slab members 30 that have a predetermined thickness and rear-side slab members 40 that are arranged on the rear side Db in the depth direction D relative to the track-side slab members 30 and have a predetermined thickness, as well as connecting hardware 50 that connects the track-side slab members 30 and the rear-side slab members 40 in the depth direction D. Therefore, the platform slab 10 can be made smaller than when constructed from a single home slab, and workability when constructing the platform slab 10 can be improved.

[0075] The connecting hardware 50 is provided on the side surface of the track-side slab member 30, one of the opposing side surfaces of the slab members 30, 40, and is equipped with a convex connecting portion 70 having a bolt head 712 that protrudes toward the rear side Db and engages therewith, and a concave connecting portion 60 on the side surface of the rear slab member 40, having a concave engagement slit 64 into which the bolt head 712 engages. Therefore, the track-side slab member 30 is placed on the ground 200 in advance, and when the rear slab member 40 is placed, the bolt head 712 of the convex connecting portion 70 on the side surface of the track-side slab member 30 is engaged with the engagement slit 64 of the concave connecting portion 60 on the side surface of the rear slab member 40, thereby connecting the track-side slab member 30 and the rear slab member 40 in the depth direction D and integrating them.

[0076] Furthermore, since the connecting hardware 50 is provided on the opposing side surfaces of the track-side slab member 30 and the rear slab member 40, the track-side slab member 30 and the rear slab member 40 can be easily connected with the connecting hardware 50 by placing the rear slab member 40 on the track-side slab member 30 that has been placed in advance on the ground 200 so that the opposing sides on which the connecting hardware 50 is provided face each other. Furthermore, since multiple connecting hardware 50 are provided at predetermined intervals in the track direction R, the track side slab member 30 and the rear side slab member 40 can be more firmly connected in the depth direction D.

[0077] Furthermore, the concave connecting portion 60 extends in the height direction H and has an engagement slit 64 that is open at the bottom Hd. Therefore, by inserting the convex connecting portion 70 having the bolt head 712 into the engagement slit 64 from the open portion at the bottom Hd, the convex connecting portion 70 can be engaged with the engagement slit 64 and connected.

[0078] In addition, a guide portion 65 is formed at the lower end of the engagement slit 64, the groove width of which gradually widens toward the end.The guide portion 65 guides the convex connecting portion 70, making it possible to easily insert the convex connecting portion 70 having the bolt head 712 into the engagement slit 64.

[0079] In addition, the convex connecting portion 70 is provided in two locations so as to engage with the engagement slit 64 at a predetermined distance in the height direction H, so that it can more reliably resist external forces acting on the platform fence 2. In detail, the two convex connecting portions 70 are inserted into the engagement slits 64 at a predetermined distance in the height direction H and engaged therewith. Therefore, even if an external force is applied that causes the home slab 10 to rise or sink, the bolt heads 712 of the two convex connecting portions 70 inserted into the engagement slits 64 at a predetermined distance will engage with the engagement slits 64, thereby more efficiently resisting the external forces described above.

[0080] In addition, the concave connecting portion 60 forms part of the opposing side of the rear slab member 40, and has a front panel 61 with an engagement slit 64, and side panels 62 provided on both widthwise sides of the front panel 61 and protruding toward the inside of the home slab 10, and an internal space 66 protruding further to the rear Db than the side panels 62 is formed inside the home slab 10, so that the convex connecting portion 70 having a bolt head 712 can be easily inserted into the engagement slit 64, and the bolt head 712 can be engaged and connected.

[0081] In addition, the side plates 62 are formed so that the spacing between them increases toward the upper Hu, making it easy to adjust the engagement condition of the bolt head 712 of the convex connecting portion 70 that engages with the engagement slit 64.

[0082] Furthermore, the convex connecting portion 70 is composed of a screw anchor 73 provided on the opposing side surface and a locking bolt 71 that screws into the screw anchor 73, and the bolt head 712 of the locking bolt 71 functions as a locking claw that locks into the engagement slit 64, so by screwing the locking bolt 71 into the side surface of the track-side slab member 30, it is possible to easily provide the convex connecting portion 70 that protrudes from the side surface of the track-side slab member 30 toward the far side Db. Furthermore, because the bolt head 712 of the locking bolt 71 functions as a locking claw, it is possible to form a locking claw that can lock into the engagement slit 64 more easily than if a locking claw were to be formed separately.

[0083] Furthermore, a spring washer 72 is provided that fits over the bolt shank 711 of the locking bolt 71 and is positioned between the back side of the front plate 61 and the bolt head 712 in the locked state, thereby stabilizing the fastening state of the locking bolt 71. Therefore, the track-side slab member 30 and the rear-side slab member 40 can be stably connected.

[0084] Furthermore, the spring washer 72 is formed in a generally truncated cone shape in side view, having a small diameter portion and a large diameter portion, and multiple spring washers 72 are stacked and arranged. Therefore, the spring washers 72, which are formed in a generally truncated cone shape in side view, become flattened by the axial force, allowing an axial repulsive force to act on the front plate 61. Furthermore, by stacking and arranging multiple spring washers 72, the axial repulsive force can be adjusted by the number of sheets. Therefore, a predetermined repulsive force can be applied to the front plate 61.

[0085] In addition, multiple connecting slabs 20 connecting the track side slab members 30 and the rear side slab members 40 are arranged along the track direction R, and connecting plates 80 are provided to connect the track side slab members 30 to each other and the rear side slab members 40 to each other in the track direction R, so that a home slab 10 that is long in the track direction R can be constructed. Furthermore, since the platform slab 10 is made of precast concrete, workability can be improved compared to when the platform slab 10 is constructed by pouring concrete at the construction site.

[0086] In the above explanation, a concave connecting portion 60 having an engagement slit 64 with an open lower side Hd is provided on the front side Df of the rear slab member 40, and the locking bolt 71 of the convex connecting portion 70 protruding from the side surface of the rear side Db of the track side slab member 30 installed on the front side Df to the rear side Db is inserted into the engagement slit 64 to form a connecting hardware 50 that locks in the depth direction D, and the track side slab member 30 and the rear side slab member 40 are connected in the depth direction D to construct the home slab 10 (connecting slab 20).

[0087] Alternatively, the engagement slit 64 in the concave coupling portion 60 may be configured to be open at the upper side Hu. Specifically, the concave coupling portion 60a of the second embodiment shown in Fig. 12 has an engagement slit 64a with an open upper side Hu provided in the center in the width direction of the front plate 61a, which has the same inverted trapezoidal shape as the front plate 61 when viewed from the front.

[0088] In the following explanation, if the elements have the same configuration as the slab members 30, 40 that make up the above-mentioned home slab 10, and the concave connecting portion 60 and convex connecting portion 70 that make up the connecting hardware 50, the same symbols will be used and their explanation will be omitted.

[0089] 12, the concave connecting portion 60a having the engagement slit 64a with an open upper side Hu closes the bottom surfaces of the front plate 61a and the side plate 62 and has a bottom surface 67 that protrudes in the thickness direction. The bottom surface 67 forms the bottom surface of the internal space 66.

[0090] In the concave connecting portion 60a configured in this manner, the upper Hu of the engagement slit 64a is open, so that the locking bolt 71 that constitutes the convex connecting portion 70 is inserted into the engagement slit 64a. Therefore, since the convex connecting portion 70 is inserted into the concave connecting portion 60a that has been installed in advance, the concave connecting portion 60a is provided on the front side Df in the depth direction D and on the side surface of the rear side Db of the track side slab member 30a that will be installed first, and the convex connecting portion 70 is provided on the rear side Db in the depth direction D and on the side surface of the front side Df of the rear side slab member 40a that will be installed later.

[0091] Therefore, in constructing the platform structure 1a using the platform slab 10a made up of slab members 30a and 40a, the track-side slab member 30a provided with the concave connecting portion 60a is installed in advance (installation process of the track-side slab member: step s3). Then, as shown in Figure 13(a), a locking bolt 71 with a spring washer 72 fitted around the bolt shank 711 is screwed onto and attached to a screw anchor 73 exposed on the side surface of the front side Df to form a convex connecting portion 70 (connecting bolt installation process: step s4).The rear slab member 40a is positioned so that the side surface of the front side Df of the rear slab member 40a is above Hu of the side surface of the rear side Db of the track side slab member 30a that has already been installed, and is lowered downward Hd to install the rear slab member 40a against the track side slab member 30a (rear slab member installation process: step s5).

[0092] Then, the locking bolt 71 and spring washer 72 of the convex connecting portion 70 protruding from the side surface of the front side Df of the rear slab member 40a toward the front side Df are inserted into the engagement slit 64a of the front plate 61a with the upper Hu opened. At this time, the guide portion 65 is provided at the end of the upper Hu of the engagement slit 64a, so the locking bolt 71 can be smoothly inserted into the engagement slit 64a. The other steps are the same as the steps for connecting the slab members 30, 40 to form the home slab 10, and therefore the explanation thereof will be omitted.

[0093] The home slab 10a constructed in this manner and the home structure 1a using the home slab 10a can achieve the same functions and effects as the home slab 10 and the home structure 1 using the home slab 10 described above.

[0094] As described above, in the configuration of the present invention and the correspondence between the configuration and the above-mentioned embodiment, the ground of the present invention corresponds to the ground 200, Similarly, The orbit corresponds to orbit 100, The platform fence corresponds to platform fence 2, The slab corresponds to the home slab 10, 10a, The home structure corresponds to home structure 1 and 1a. The orbital direction corresponds to the orbital direction R, The vertical direction corresponds to the height direction H, The orthogonal direction corresponds to the depth direction D, The first slab corresponds to the track-side slab members 30, 30a, The opposite side of the orbit corresponds to the far side Db, The second slab corresponds to the rear slab members 40, 40a, The connecting means corresponds to the connecting hardware 50, The locking claw corresponds to the bolt head 712, The convex connecting body corresponds to the convex connecting portion 70, The engagement recesses correspond to the engagement slits 64, 64a, The concave connecting bodies correspond to the concave connecting portions 60, 60a, The guide corresponds to the guide 65; The main surface portion corresponds to the front plate 61, 61a, The side portions correspond to the side plates 62; The space formed inside the slab corresponds to the interior space 66; The screw recess is compatible with the screw anchor 73. The bolt corresponds to the locking bolt 71, The bolt head corresponds to bolt head 712; The bolt shank corresponds to the bolt shank 711, The spring washer corresponds to spring washer 72, The connecting plate corresponds to the connecting plate 80, but is not limited to the above embodiment.

[0095] For example, the ground 200 includes an embankment, a bedding surface that has been excavated and bedding, a laying surface on which ballast or the like has been laid, or the ground 200 that is separated by a stone wall or retaining wall or the like. Furthermore, although the bolt head 712 of the locking bolt 71 is used as the locking claw portion that is locked in the engagement slits 64, 64a, the locking claw portion is not limited to this as long as it can be locked in the state where it is inserted into the engagement slits 64, 64a. For example, it may be a member that is hook-shaped or T-shaped in plan view. Furthermore, the two locking bolts 71 constituting the convex connecting portion 70 arranged at a predetermined distance in the height direction H are both identical, but one may be a bolt with a larger diameter than the other.

[0096] 16 to 18, a recessed countersunk groove 68 into which a part of a spring washer 72 fits may be provided along the engaging slit 64 on the rear side of the engaging slit 64 of the concave connecting portion 60. As shown in FIG. FIG. 16(a) shows an enlarged view of the main part of the rear slab member 40b having a recessed connecting portion 60b with a countersink 68, and FIG. 16(b) shows a cross-sectional view taken along the line AA in FIG. 16(a).

[0097] Figure 17(a) shows a cross-sectional view of a key portion of the track side slab member 30b, which has a convex connecting portion 70b that fits into the concave connecting portion 60b, Figure 17(b) shows a side view of a key portion of the track side slab member 30b, which has a convex connecting portion 70b that fits into the concave connecting portion 60b, Figure 18(a) shows a cross-sectional view of a key portion of the connecting slab 20b in a state before it is connected by the connecting hardware 50b, and Figure 18(b) shows a cross-sectional view of a key portion of the connecting slab 20b in a connected state by the connecting hardware 50b.

[0098] The following describes a configuration in which a concave connecting portion 60b with a countersink 68 is provided in the rear slab member 40b and a convex connecting portion 70b is provided in the track-side slab member 30b, but it may also be a configuration in which a concave connecting portion 60b with a countersink 68 is provided in the track-side slab member 30b and a convex connecting portion 70b is provided in the rear slab member 40b, as shown in Figure 12 above.

[0099] First, as shown in Figure 16, the countersunk grooves 68 provided in the recessed connecting portion 60b of the rear slab member 40b are provided in two locations spaced a predetermined distance apart in the height direction H. Specifically, the distance in the height direction H corresponds to the distance between the two locking bolts 71 that make up the protruding connecting portion 70b, and the countersunk grooves 68 are provided at positions where the locking bolts 71 are locked in the connected state. Specifically, the countersunk groove 68a located on the upper Hu is formed at the end of the upper Hu of the engagement slit 64, and the countersunk groove 68b on the lower Hd is located slightly below the center of the engagement slit 64 in the height direction H.

[0100] The countersunk grooves 68 are formed on the rear side of the front plate 61 so as to be concave toward the front side along the edge of the engagement slit 64. Although the countersunk grooves 68 are generally circular in rear view, because they are formed along the engagement slit 64, the countersunk grooves 68a on the upper Hu are formed in the shape of approximately three-quarters of a circle, and the countersunk grooves 68b are formed in the shape of arcs that straddle the engagement slit 64 and face each other in the width direction.

[0101] The countersink 68 is a recessed portion having a generally truncated cone shape corresponding to the small diameter side of the spring washer 72, which is formed in a generally truncated cone shape in side view and has a small diameter portion and a large diameter portion. In this way, the convex connecting portion 70b that engages with the concave connecting portion 60b having the countersink 68 uses multiple stacked spring washers 72 that are formed in a roughly truncated cone shape in side view and have a small diameter portion and a large diameter portion, as shown in Figure 17.

[0102] More specifically, an even number of spring washers 72 are stacked so that the small diameter portions or large diameter portions of adjacent spring washers 72 face each other in the axial direction. The spring washers are also arranged so that both axial ends are small diameter portions. Alternatively, an odd number of spring washers 72 may be stacked, with the large diameter portion positioned at the end closest to the bolt head 712.

[0103] The connecting hardware 50b configured in this manner connects the concave connecting portion 60b and the convex connecting portion 70b by engaging the locking bolt 71 with the engagement slit 64 so that the spring washer 72 is positioned between the bolt head 712 of the locking bolt 71 and the front plate 61 of the concave connecting portion 60b, as shown in Figure 18.

[0104] In the connected state shown in Figure 18(b), the small diameter portion of the spring washer 72 arranged between the bolt head 712 of the locking bolt 71 and the front plate 61 of the concave connecting portion 60b fits into the countersunk groove 68 provided along the engagement slit 64.

[0105] As described above, the countersunk groove 68, which is a recessed portion into which the small diameter portion of the spring washer 72 fits in the connected state, is provided along the engagement slit 64 on the back side of the front plate 61, so that in the connected state, the small diameter portion of the spring washer 72 fits into the countersunk groove 68 with a repulsive force acting thereon. Therefore, even if the locking bolt 71 engaged in the engagement slit 64 tries to inadvertently come out of the engagement slit 64, the small diameter portion of the spring washer 72 fits into the countersunk groove 68, so that the locking bolt 71 can be prevented from inadvertently coming out of the engagement slit 64.

[0106] In addition, two locking bolts 71 are provided at a predetermined interval in the height direction H, and the countersunk grooves 68 are provided at positions corresponding to the two locking bolts 71. Therefore, the two locking bolts 71 arranged at a predetermined interval in the height direction H are both locked into the engagement slits 64, and can resist bending of the track side slab member 30b and the rear side slab member 40b in the connected state.

[0107] The above-described countersunk grooves 68 are formed to have the same size and are spaced apart by a predetermined distance in the height direction H, but as shown in FIGS. 19 to 21, the countersunk groove 68a may be formed to have a larger diameter than the countersunk groove 68b. 19(a) shows an enlarged view of a main part of the rear slab member 40c having a recessed connecting portion 60c with a countersink 68, and FIG. 19(b) shows a cross-sectional view taken along the arrow BB in FIG. 19(a).

[0108] Figure 20(a) shows a cross-sectional view of a key portion of the track side slab member 30c having a convex connecting portion 70c that fits into the concave connecting portion 60c, Figure 20(b) shows a side view of a key portion of the track side slab member 30c having a convex connecting portion 70c that fits into the concave connecting portion 60c, Figure 21(a) shows a cross-sectional view of a key portion of the connecting slab 20c in a state before being connected by the connecting hardware 50c, and Figure 21(b) shows a cross-sectional view of a key portion of the connecting slab 20c in a connected state by the connecting hardware 50c.

[0109] The following describes a configuration in which a concave connecting portion 60c with a countersink 68 is provided in the rear slab member 40c and a convex connecting portion 70c is provided in the track-side slab member 30c, but it may also be a configuration in which a concave connecting portion 60c with a countersink 68 is provided in the track-side slab member 30c and a convex connecting portion 70c is provided in the rear slab member 40c, as shown in Figure 12 above.

[0110] First, as shown in Figure 20, of the two locking bolts 71 provided in the height direction H, the locking bolt 71 located on the upper Hu, which is the rear side of the engagement slit 64 when connected, is referred to as the rear locking bolt 71a, and the locking bolt 71 located on the lower Hd, which is the front side of the engagement slit 64, is referred to as the front locking bolt 71b.

[0111] The spring washer 72 fitted onto the rear locking bolt 71a has a larger diameter on the front plate 61 side, and the spring washer 72 fitted onto the front locking bolt 71b has a smaller diameter on the front plate 61 side. Specifically, the spring washer 72 fitted to the front locking bolt 71b is arranged so that both axial ends have small diameter portions, similar to the spring washer 72 fitted to the locking bolt 71 of the convex connecting portion 70b described above. In contrast, the spring washer 72 fitted to the rear locking bolt 71a is stacked in an even number so that adjacent spring washers 72 in the axial direction face each other with their small diameter portions or their large diameter portions facing each other, but is arranged so that both axial ends have large diameter portions. Note that an odd number of spring washers 72 may be stacked, but it is sufficient that the spring washer 72 fitted to the rear locking bolt 71a has a large diameter portion on the side opposite the bolt head 712, and the spring washer 72 fitted to the front locking bolt 71b has a small diameter portion on the side opposite the bolt head 712.

[0112] The concave connecting portion 60c to which the locking bolt 71 of the convex connecting portion 70c configured in this manner is connected is formed so that, as shown in Figure 19, of the two countersunk grooves 68 provided at a predetermined distance in the height direction H, the countersunk groove 68a to which the rear locking bolt 71a is locked has a larger diameter than the countersunk groove 68b to which the front locking bolt 71b is locked.

[0113] Specifically, the countersunk hole 68b into which the front locking bolt 71b is locked has the same configuration as the countersunk hole 68 of the above-mentioned recessed connecting portion 60b. In contrast, the countersunk hole 68a formed by the rear locking bolt 71a has a diameter that allows the large diameter portion of the spring washer 72 to fit into, and is formed with a uniform depth.

[0114] The connecting hardware 50c configured in this manner connects the concave connecting portion 60c and the convex connecting portion 70c by engaging the locking bolt 71 with the engagement slit 64 so that the spring washer 72 is positioned between the bolt head 712 of the locking bolt 71 and the front plate 61 of the concave connecting portion 60c, as shown in Figure 21.

[0115] In the connected state shown in Figure 21(b), the large diameter portion of the spring washer 72 arranged between the bolt head 712 of the rear locking bolt 71a and the front plate 61 of the concave connecting portion 60c fits into the countersink 68a, and the small diameter portion of the spring washer 72 arranged between the bolt head 712 of the front locking bolt 71b and the front plate 61 of the concave connecting portion 60c fits into the countersink 68b.

[0116] In this way, of the two locking bolts 71, the locking bolt 71 located on the far side of the engagement slit 64 in the coupled state is designated as the far-side locking bolt 71a, and the locking bolt 71 located on the near side of the engagement slit 64 is designated as the front-side locking bolt 71b, the spring washer 72 fitted onto the far-side locking bolt 71a has a larger diameter on the side facing the front plate 61, and the spring washer 72 fitted onto the front-side locking bolt 71b has a smaller diameter on the side facing the front plate 61, and the countersink 68a corresponding to the far-side locking bolt 71a is formed with a larger diameter than the countersink 68b corresponding to the front-side locking bolt 71b. Therefore, the spring washer 72 fitted onto the far-side locking bolt 71a does not get caught in the countersink 68b into which the spring washer 72 fitted onto the front-side locking bolt 71b gets caught, allowing for smooth coupling. [Explanation of symbols]

[0117] 1,1a...Home structure 2...Platform fence 10,10a...Home slab 30, 30a... Track side slab member 40, 40a...Back slab member 50,50a...Connecting hardware 60, 60a...Concave connecting portion 61,61a…front plate 62...Side panel 64, 64a...Engagement slits 65…Information Department 66...Interior space 68,68a,68b…Zabori 70...Convex connecting part 71...Locking bolt 71a...Rear locking bolt 71b...Front locking bolt 72...Spring washer 73...Nejianka 80...Connecting plate 100... Orbit 200...ground 711...Bolt shaft 712...Bolt head D: Depth direction Db...back side H: Height R…Trajectory direction

Claims

1. A platform structure constructed on the ground, in which a platform fence for preventing intrusion onto the track is provided on a slab, and which constitutes a platform, a direction along the track is defined as a track direction, and a direction perpendicular to the track direction and the up-down direction is defined as an orthogonal direction; The slab is a first slab having a predetermined thickness, which is disposed on the track side and on which the platform fence is provided; a second slab having a predetermined thickness and disposed on an opposite side of the track in the orthogonal direction from the first slab; A connecting means is provided to connect the first slab and the second slab in the orthogonal direction, The connecting means is A plurality of the sensors are provided at predetermined intervals in the track direction, a convex connecting body provided on one of the opposing side surfaces of the first slab and the second slab, the convex connecting body having a locking claw portion that protrudes toward the other side surface and locks; a concave connecting body provided on the other of the opposing side surfaces and having a locking recess into which the locking claw portion is locked, The concave connector is The engagement recess is configured as a slit extending in the vertical direction and having at least one of its upper and lower ends open. Home structure.

2. A guide portion is formed at the open end of the slit, the groove width of which gradually widens toward the end. The home structure of claim 1 .

3. The convex connecting bodies are provided in plurality so as to be engaged with the slits at predetermined intervals in the vertical direction. The home structure of claim 1 .

4. The concave connector is A space is formed inside the slab. The ... The home structure of claim 1 .

5. The side portions are formed so that the spacing between them increases upward. The home structure according to claim 4.

6. The convex connecting body is The screw recess is provided on the opposing side surface, and a bolt is screwed into the screw recess, The locking claw portion is formed by the bolt head of the bolt. The home structure according to claim 4.

7. The bolt is fitted onto the bolt shank, A spring washer is provided between the back side of the main surface portion and the bolt head in the locked state. The home structure according to claim 6.

8. The spring washer is formed in a generally truncated cone shape in a side view, having a small diameter portion and a large diameter portion, A plurality of the spring washers are stacked and arranged. The home structure according to claim 7.

9. A recessed portion into which at least a part of the spring washer in a connected state is fitted is provided along the slit on the back side of the main surface portion. The home structure according to claim 8.

10. The bolts are provided in pairs at a predetermined interval in the vertical direction, The recessed portions are provided at positions corresponding to the two bolts. The home structure according to claim 9.

11. Of the two bolts, the bolt that is arranged on the far side of the slit in the connected state is referred to as a far-side locking bolt, and the bolt that is arranged on the near side of the slit is referred to as a near-side locking bolt, The spring washer fitted onto the rear locking bolt has a larger diameter on the side of the main surface portion, and the spring washer fitted onto the front locking bolt has a smaller diameter on the side of the main surface portion, The recessed portion corresponding to the rear locking bolt is formed with a larger diameter than the recessed portion corresponding to the front locking bolt. The home structure of claim 10.

12. The first slab and the second slab are arranged in plurality along the track direction, and connecting plates are provided to connect the first slabs to each other and the second slabs to each other in the track direction. A home structure according to any one of claims 1 to 11.

13. The slab is made of precast concrete A home structure according to any one of claims 1 to 11.

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