Floor slab

Abstract

To provide a floor slab capable of improving shear resistance between adjacent joint component members along a longitudinal direction of an edge surface.SOLUTION: Rectangular plate-shaped reinforced concrete floor slabs 10 of the present invention are installed adjacent to each other on a bridge girder via joints and connected by a floor slab joint device, and on the side of an edge surface 11 adjacent to the joints, multiple joint component members (receiving members 2) constituting the floor slab joint device are provided at predetermined intervals along a longitudinal direction of the edge surface 11, and reinforcing members 9 installed between adjacent joint component members (receiving members 2) at predetermined intervals along the longitudinal direction of the edge surface 11 are provided.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to deck slabs that are installed adjacent to each other on a bridge girder via joints. [Background technology]

[0002] BACKGROUND ART There is known a rectangular plate-shaped deck made of reinforced concrete that is installed adjacent to each other on a bridge girder via joints and connected by a deck joint device (see Patent Document 1, etc.). The deck slab is configured with a plurality of joint component members that make up the deck slab joint device on the edge surface (end surface) side adjacent to the joint, spaced at predetermined intervals along the longitudinal direction of the edge surface. A deck joint device is a device for connecting one deck to the other, which are installed adjacent to each other on the girder of a bridge.It is composed of a support member as a joint component, such as a C-shaped metal fitting, which is installed on one deck, a support member as a joint component, such as a C-shaped metal fitting, which is installed on the other deck, and a connecting member that connects these support members, such as an H-shaped metal fitting. The receiving member as a joint component member includes an engaged portion as a joint functional portion having an engaging recess, and an anchoring member that is fixed to the concrete of the deck slab in order to fix the engaged portion to the concrete of the deck slab. The connecting member has one engaging portion that engages with the engaging recess of one of the receiving members, the other engaging portion that engages with the engaging recess of the other receiving member, and a connecting portion that connects the one engaging portion and the other engaging portion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-159233 Summary of the Invention [Problem to be solved by the invention]

[0004] The conventional deck slabs described above are configured with joint components spaced at predetermined intervals along the longitudinal direction of the edge surface, but since there is only concrete between adjacent joint components along the longitudinal direction of the edge surface, the larger the interval between adjacent joint components becomes, the smaller the shear resistance in that interval becomes, and as vehicle loads continue to be applied to the deck slab, shear cracks will progress in that interval, raising the risk of punching shear failure or the like. The present invention has been made in consideration of the above-mentioned problems, and provides a deck slab that can improve the shear strength between adjacent joint components along the longitudinal direction of the edge surface. [Means for solving the problem]

[0005] The deck slab of the present invention is a rectangular plate-shaped reinforced concrete deck slab that is installed adjacent to the bridge girder via joints and connected by a deck slab joint device, and is characterized in that on the edge surface side adjacent to the joints, it has a plurality of joint components that make up the deck slab joint device, spaced at predetermined intervals along the longitudinal direction of the edge surface, and is also equipped with reinforcing members provided between adjacent joint components spaced at predetermined intervals along the longitudinal direction of the edge surface. The reinforcing member is characterized in that it comprises a reinforcing portion and end-side engaging portions provided on both ends of the reinforcing portion, each end-side engaging portion engaging with each adjacent joint component member at a predetermined interval along the longitudinal direction of the edge surface, and the reinforcing portion is embedded in the concrete of the deck slab so as to extend between each adjacent joint component member at a predetermined interval along the longitudinal direction of the edge surface. According to the deck slab of the present invention, it is possible to improve the shear strength between adjacent joint components along the longitudinal direction of the edge surface, and it is possible to provide a deck slab that can suppress punching shear failure, etc. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 1 is a plan view showing the deck (first embodiment). [Figure 2]1A and 1B are diagrams showing a deck slab joint device, in which FIG. 1A is an exploded perspective view of the deck slab joint device, and FIG. 1B is a perspective view of the deck slab joint device (first embodiment). [Figure 3] 4A and 4B show a reinforcing member provided between each receiving member, in which FIG. 4A is a perspective view showing the reinforcing member before installation, and FIG. 4B is a perspective view showing the reinforcing member after installation (Embodiment 1). [Figure 4] (a) is a plan view of the reinforcing member seen from above the deck slab, and (b) is a view taken along the line AA in (a) (embodiment 1). DETAILED DESCRIPTION OF THE INVENTION

[0007] Embodiment 1 As shown in FIG. 1, the deck 10 according to the first embodiment is a rectangular plate-shaped reinforced concrete deck that is installed adjacent to each other on a girder (not shown) via joints 12 along the bridge axis direction X of the bridge, for example, and is connected by a deck joint device 1. The deck 10 is configured to include a plurality of support members 2, 2... that are arranged adjacent to each other at a predetermined interval along the longitudinal direction of the edge surface 11, and a reinforcing member 9 that reinforces the concrete portion between the support members 2 that are adjacent to each other at a predetermined interval along the longitudinal direction of the edge surface 11. Note that Figure 1 is a plan view from above showing deck slabs 10, 10 arranged adjacent to each other on a girder along the bridge axis direction X of the bridge, with joints 12 between them, connected by a deck slab joint device 1, and this plan view is a plan view in a state where the joints 12 have not yet been filled with filler material. Furthermore, the reinforced concrete deck 10 is, for example, a deck containing reinforcing bars, or PC steel wires, or steel material, or two or more of these reinforcing bars, steel material, and PC steel wires. The receiving member 2 is a joint component member that constitutes the deck slab joint device 1.

[0008] That is, the deck slab 10 is configured to have a plurality of support members 2 constituting the deck slab joint device 1 on the edge surface 11 side adjacent to the joint 12, spaced at predetermined intervals along the longitudinal direction of the edge surface 11, and to have reinforcing members 9 provided between adjacent support members 2 spaced at predetermined intervals along the longitudinal direction of the edge surface 11. In addition, Figure 1 illustrates a deck slab 10 in which reinforcing members 9 are provided only in the long gap portions W between adjacent receiving members 2 spaced a predetermined distance apart along the longitudinal direction of the edge surface 11, but it is also possible to configure the deck slab 10 so that reinforcing members 9 are provided in all gap portions W, W... between adjacent receiving members 2 spaced a predetermined distance apart along the longitudinal direction of the edge surface 11. In other words, the deck slab 10 of embodiment 1 may be configured to have reinforcing members 9 in all gap portions W, W... between adjacent receiving members 2 spaced a predetermined distance apart along the longitudinal direction of the edge surface 11, or may be configured to have reinforcing members 9 in at least one gap portion W between adjacent receiving members 2 spaced a predetermined distance apart along the longitudinal direction of the edge surface 11 where it is desired to improve the shear strength.

[0009] The deck 10 is configured to include a plurality of one of the pair of receiving members 2, 2 . . . that make up the deck joint device 1, which are arranged at predetermined intervals along the longitudinal direction of the edge surface 11. That is, as shown in Figure 1, the deck slab 10 of embodiment 1 is configured to have one of a pair of receiving members 2, 2... that constitute the deck slab joint device 1 on the edge surface 11 side that extends along the direction Y perpendicular to the bridge axis of the bridge and is adjacent to the joint 12, and is provided with multiple receiving members 2 at predetermined intervals along the longitudinal direction of the edge surface 11 (direction Y perpendicular to the bridge axis).

[0010] An example of the deck slab joint device 1 will be described below. As shown in Figures 1 and 2, the deck joint device 1 is configured to include receiving members 2A(2), 2B(2) provided on the edge surfaces 11, 11 of adjacent decks 10, 10 along the bridge axis direction X of the bridge, and a connecting member 3 connecting the receiving members 2A(2), 2B(2) provided on the edge surfaces 11, 11 of adjacent decks 10, 10. That is, as shown in Figure 1, one receiving member 2A (2) installed on the edge surface 11 side of one adjacent deck slab 10 along the bridge axis direction X of the bridge is connected to the other receiving member 2B (2) installed on the edge surface 11 side of the other adjacent deck slab 10 by a connecting member 3, and thus one deck slab 10 and the other deck slab 10 arranged adjacent to each other are connected via a deck slab joint device 1.

[0011] As shown in FIG. 2, the receiving member 2 has an engaged portion 5 having an engaging recess 4 that engages with an engaging portion 7 provided on the connecting member 3, and an anchoring portion 6 that is anchored to the concrete of the deck slab 10. The receiving member 2 of the deck slab joint device 1 is made of an integrally molded product such as steel, in which the engaged portion 5 and the fixed portion 6 are integrally molded by pouring cast iron into a formwork, for example.

[0012] The connecting member 3 has one engaging portion 7 that engages with the engaged portion 5 of one receiving member 2, the other engaging portion 7 that engages with the engaged portion 5 of the other receiving member 2, and a connecting portion 8 that connects the one engaging portion 7 and the other engaging portion 7. That is, the connecting member 3 is composed of a pair of engaging portions 7,7 that engage with the respective engaging recesses 4,4 of the respective engaged portions 5,5 of the receiving members 2,2 installed on each edge surface 11 of each adjacent deck slab 10, and a connecting portion 8 that connects the pair of engaging portions 7,7. The connecting member 3 is formed, for example, from a steel integrally molded product in which the pair of engaging portions 7, 7 and the connecting portion 8 are integrally molded by pouring cast iron into a mold.

[0013] The engaged portion 5 as a joint functional portion has, for example, a bottom plate 51, a gable wall 52, a side wall 53 and an engaging wall 54, and has an engaging recess 4 surrounded by these bottom plate 51, gable wall 52, side wall 53 and engaging wall 54. That is, the engaged portion 5 comprises a bottom plate 51, a gable wall 52 provided to rise from the bottom plate 51, left and right side walls 53, 53 extending from both the left and right sides of the gable wall 52 and provided to rise from the bottom plate 51, and an engaging wall 54 extending from the extended ends 53e, 53e of the left and right side walls 53, 53 and provided to rise from the bottom plate 51. In addition, in order to increase the adhesion between the engaged portion 5 and the concrete of the deck slab 10 and to improve punching shear resistance, uneven portions 59, 59... are provided on the outer surfaces of the left and right side walls 53, 53.

[0014] The engagement recess 4 has an engagement portion insertion opening 41 which is an upper opening facing the bottom plate 51 and serves as an insertion port for inserting the engagement portion 7 into the engagement recess 4, and a connecting portion insertion opening 42 which is an opening facing the end wall 52 and serves as an insertion groove for inserting the connecting portion 8. The opening 41 for inserting the engagement portion is an opening surrounded by the upper end of the end wall 52, the upper ends of the left and right side walls 53, 53, and the upper end of the engagement wall 54, and is formed by an opening that allows the engagement portion 7 of the connecting member 3 to be inserted into the engagement recess 4 from above. The opening 42 for inserting the connecting part is a groove formed in the center between the left and right sides of the engagement wall 54 and extending continuously from the opening 41 for inserting the engaging part toward the bottom plate 51, and is formed with a groove width that allows the connecting part 8 of the connecting member 3 to be inserted from above.

[0015] The fixing portion 6 of the receiving member 2 embedded on the edge surface 11 side of the deck slab 10 is configured to include, for example, two fixing members 60A, 60A such as fixing reinforcements protruding from the left and right end sides of the outer surface of the gable wall 52 of the engaged portion 5 and spaced apart in a direction (horizontal (left and right) direction) H along the board surface of the deck slab 10, and an end connecting member 60B connecting the ends of these fixing members 60A, 60A.

[0016] The engaging portion 7 of the connecting member 3 is configured, for example, to have an outer peripheral wall facing the inner peripheral wall of the engaging recess 4, and is configured to have a fixing portion 72 with an outer wall surface 71 facing the inner wall surface of the gable wall 52 and the inner wall surfaces of the left and right side walls 53, 53, and a wall portion 74 with an engaging wall surface 73 facing the inner wall surface 54u of the engaging wall 54.

[0017] The fixing portion 72 of the engaging portion 7 is formed with a bolt insertion hole 75 for fixing the fixing portion 72 to the bottom plate 51 of the engaged portion 5 with fixing means such as a bolt (not shown). In this case, the bolt insertion hole 75 is configured, for example, with a recess for accommodating and fastening the bolt head formed on the upper side of the fixing portion 72, and a bolt shaft fastening hole (internal thread hole) formed on the bottom surface of the recess. It should be noted that the fixing portion 72 and the bolts used as fixing means may not be used. For example, the engaging portion of the connecting member and the engaged portion of the receiving member may be fixed by using, for example, a wedge-shaped inserting member (not shown) as a fixing means between the inner wall surface of the engaging wall of the engaged portion 5 and the inner wall surface of the wall portion of the engaging portion.In short, any configuration is acceptable as long as it is possible to fix the engaging portion of the connecting member and the engaged portion of the receiving member.

[0018] As shown in Figure 4, the receiving member 2 is embedded in the edge surface 11 of the deck slab 10 with the engaging portion 5 embedded in the edge surface 11 of the deck slab 10, with the engaging portion insertion opening 41 and the connecting portion insertion opening 42 of the engaging recess 4 exposed to the outside, and the fixing portion 6 extended from the gable wall 52 toward the center of the deck slab 10 is embedded in the deck slab 10. That is, the receiving member 2 is placed in a formwork for forming the deck 10 (not shown) so that the opening 41 for inserting the engaging part and the opening 42 for inserting the connecting part of the engaging recess 4 of the receiving member 2 are exposed to the outside and the other parts are buried in the concrete of the deck 10, and then concrete is poured into the formwork and allowed to harden, thereby forming the deck 10 with the receiving member 2 installed on the edge surface 11 side. In other words, as shown in Figure 4, the receiving member 2 is embedded in the concrete of the deck slab 10 so that the opening 41 for inserting the engaging portion and the upper surface 2t around the opening 41 for inserting the engaging portion are exposed, and the opening 42 for inserting the connecting portion and the outer wall surface 54f of the engaging wall 54 are exposed, and above this exposed upper surface 2t, an upper opening space 16 is formed which functions as a space for inserting the connecting member 3 and a space for filling with filler material.

[0019] 3 and 4, the reinforcing member 9 provided between adjacent receiving members 2 spaced a predetermined distance apart along the longitudinal direction of the peripheral surface 11 of 10 is configured to include a reinforcing plate portion 91 as a reinforcing part made of, for example, a flat steel plate, and end-side engaging portions 92, 92 provided on both ends of the reinforcing plate portion 91. The end-side engaging portions 92, 92 are formed, for example, by bending both ends in the longitudinal direction of a flat steel plate. The reinforcing member 9 is installed so that each end engagement portion 92, 92 is inserted into the engagement recesses 4, 4 of each adjacent receiving member 2, 2 at a predetermined interval along the longitudinal direction of the edge surface 11 and engages with the inner wall surface 53u of the side wall 53, so that the reinforcing plate portion 91 is arranged to extend between each adjacent receiving member 2, 2 at a predetermined interval along the longitudinal direction of the edge surface 11 and is embedded in the concrete of the deck slab 10, thereby constructing a deck slab 10 in which the concrete portion between adjacent receiving members 2 and 2 at a predetermined interval along the longitudinal direction of the edge surface 11 is reinforced.

[0020] The deck slab 10 is manufactured, for example, as follows. After each receiving member 2, 2... is installed at a predetermined position within the formwork for forming the deck slab (a position along the edge surface of the deck slab), a reinforcing member 9 is installed between each adjacent receiving member 2, 2 at a predetermined distance, and steel bars, etc. are placed. Thereafter, by filling the formwork with concrete, a deck slab 10 can be produced in which reinforcing members 9 are embedded between adjacent receiving members 2, 2 at a predetermined interval along the longitudinal direction of the edge surface 11. That is, the deck 10 is constructed such that the receiving members 2, 2 . . . and the reinforcing members 9 are positioned below the upper edge 11t of the peripheral surface 11 and the upper surface 10t of the deck 10 and are embedded in concrete.

[0021] Next, the joint structure of the deck slab 10 will be described. For example, as shown in Fig. 1, deck slabs 10, 10 are installed adjacent to each other on girders (not shown) along the bridge axis direction X of the bridge via joints 12. Then, from above the respective engagement recesses 4, 4 of receiving members 2, 2 embedded on the edge surfaces 11, 11 of the adjacent deck slabs 10, 10 via the joints 12, the engagement portions 7, 7 of the connecting member 3 are inserted into the respective engagement recesses 4, 4 via the engagement portion insertion openings 41 at the top of the respective engagement recesses 4, 4, and the connecting portion 8 of the connecting member 3 is inserted into the connecting portion insertion openings 42 of the respective engagement recesses 4, 4, so that, for example, the pair of engagement portions 7, 7 are inserted into the respective engagement recesses 4, 4 while the respective engagement wall surfaces 73, 73 of the pair of engagement portions 7, 7 are guided by the inner wall surfaces 54u, 54u of the left and right engagement walls 54, 54 (see Fig. 2). Furthermore, by fixing the engaging portion 7 inserted into the engaging recess 4 with a fixing means, the engaging portion 7 of the connecting member 3 and the engaged portion 5 of the receiving member 2 are fixed together. As a result of the above, the adjacent deck slabs 10, 10 are connected to each other by the deck slab joint device 1. After adjacent deck slabs 10, 10 are connected with the deck joint device 1, the joints 12 between the edge surfaces 11, 11 of each adjacent deck slab 10, 10 and the upper opening space 16 are filled with a filler such as mortar or concrete. As a result of the above, a deck slab joint structure is formed in which the deck slabs 10, 10 adjacent to each other along the bridge axis direction X of the bridge are joined together by the deck slab joint device 1 and the filler material.

[0022] In summary, the deck slab 10 according to the first embodiment is configured as follows. The deck slab 10 is configured such that a plurality of receiving members 2, 2... are provided at predetermined intervals along the longitudinal direction of the edge surface 11, and a reinforcing member 9 is provided between adjacent receiving members 2 at predetermined intervals along the longitudinal direction of the edge surface 11. The receiving member 2 has an engaged portion 5 with which the connecting member 3 engages, and an anchoring portion 6 that extends rearward from the engaged portion 5 and is anchored to the concrete of the deck slab 10, and is embedded on the edge surface 11 side of the concrete of the deck slab 10. The engaged portion 5 comprises an engagement wall 54 with which the connecting member 3 engages, a bottom plate 51 extending rearward from the lower end of the engagement wall 54, side walls 53, 53 extending rearward from the left and right sides of the engagement wall 54, and a gable wall 52 extending from the rear ends of the bottom plate 51 and the side walls 53, 53, as well as an engagement recess 4 with an upper opening surrounded by the bottom plate 51, gable wall 52, side walls 53, 53 and engagement wall 54. The reinforcing member 9 comprises a reinforcing plate portion 91 as a reinforcing portion and end side engaging portions 92, 92 provided on both ends of the reinforcing plate portion 91, and each end side engaging portion 92, 92 engages with each engaging recess 4, 4 of each adjacent receiving member 2, 2 at a predetermined interval along the longitudinal direction of the edge surface 11, and the reinforcing plate portion 91 is embedded in the concrete of the deck slab 10 so as to extend between each engaging recess 4, 4 of each adjacent receiving member 2, 24 at a predetermined interval along the longitudinal direction of the edge surface 11, thereby forming a deck slab 10 in which the concrete portion between adjacent receiving members 2 and 2 at a predetermined interval along the longitudinal direction of the edge surface 11 is reinforced.

[0023] According to the deck slab 10 of embodiment 1, the configuration is provided with a reinforcing member 9 provided between adjacent receiving members 2 at a predetermined interval along the longitudinal direction of the edge surface 11 adjacent to the joint 12, thereby improving the shear strength between adjacent receiving members 2 along the longitudinal direction of the edge surface 11. Therefore, it has become possible to provide a deck slab 10 that can suppress the progression of shear cracks and punching shear failure and the like that accompany the progression of the shear cracks.

[0024] Embodiment 2 Also, for example, half-section construction (lane-specific deck replacement work) is known, in which the bridge is divided into two phases: a first phase in which the direction perpendicular to the bridge axis Y of the bridge is divided into two equal parts, and the deck slabs for the driving lanes are lined up and connected along the bridge axis direction (vehicle travel direction) X, and a second phase in which the deck slabs for the passing lanes are lined up and connected along the bridge axis direction (vehicle travel direction) X. In other words, in this half-section construction in which the deck slab is replaced for each lane, it is necessary to arrange the receiving members of the deck slab joint device on the edge surface side of the deck slab along the direction perpendicular to the bridge axis Y, at a predetermined interval along the longitudinal direction of the edge surface, and also on the edge surface side of the deck slab along the bridge axis direction X, at a predetermined interval along the longitudinal direction of the edge surface. Therefore, in this half-section construction, it is sufficient to use a deck structure in which a reinforcing member 9 is provided between adjacent receiving members 2 at a predetermined interval along the longitudinal direction of the edge surface along the direction perpendicular to the bridge axis Y, and a reinforcing member 9 is provided between adjacent receiving members 2 at a predetermined interval along the longitudinal direction of the edge surface along the direction of the bridge axis X.

[0025] Embodiment 3 In embodiments 1 and 2, an example of a deck joint device 1 is shown, which is configured to include one support member such as a C-shaped metal fitting provided on one deck slab 10 arranged adjacent to the bridge girder, another support member such as a C-shaped metal fitting provided on the other deck slab 10 arranged adjacent to the bridge girder, and a connecting member such as an H-shaped metal fitting that connects the one support member and the other support member.However, the deck joint device used in the deck of the present invention may be a deck joint device of other configurations, for example, a deck joint device of the following configuration.

[0026] For example, the deck joint device may be configured to include one receiving member having a recess called a bolt box provided on one deck slab that is installed adjacent to the bridge girder, another receiving member having a recess called a bolt box provided on the other deck slab that is placed adjacent to the bridge girder, and a connecting bolt that is installed across the one bolt box and the other bolt box and serves as a connecting member connecting the one receiving member to the other receiving member. In this case, the deck slab of the present invention may be configured to have a reinforcing member between adjacent receiving members having recesses, such as bolt boxes, spaced a predetermined distance apart along the longitudinal direction of the edge surface.

[0027] The deck joint device may also be a deck joint device configured to include a receiving member, such as a C-shaped metal fitting, provided on one deck slab that is installed adjacent to the bridge girder, and a connecting member, such as a T-shaped metal fitting, provided on the other deck slab that is installed adjacent to the bridge girder, and to connect adjacent deck slabs by engaging the connecting member with a recess in the receiving member. In this way, the deck joint device may be configured to include a receiving member provided on one deck slab and a connecting member provided on the other deck slab and connected to the receiving member provided on the one deck slab. In this case, the deck slab of the present invention may be configured to have a plurality of receiving members such as the above-mentioned C-shaped metal fittings or connecting members such as the above-mentioned T-shaped metal fittings on the edge surface side adjacent to the joint, spaced at a predetermined interval along the longitudinal direction of the edge surface, and to have reinforcing members between adjacent receiving members spaced at a predetermined interval along the longitudinal direction of the edge surface, or between adjacent connecting members spaced at a predetermined interval along the longitudinal direction of the edge surface.

[0028] In other words, the joint component members such as receiving members provided on the deck slab of the present invention can be of any configuration as long as they are joint component members configured to be able to connect deck slabs installed adjacent to each other.

[0029] Embodiment 4 Furthermore, in the above, an example of the reinforcing member 9 is given in which the reinforcing member is made of steel material having a reinforcing plate portion 91 made of a flat steel plate or the like and end engagement portions 92, 92 provided on both ends of the reinforcing plate portion, but the reinforcing member may be any type that is provided between adjacent joint component members spaced a predetermined distance apart along the longitudinal direction of the edge surface of the deck slab and can improve the shear strength of the gap portion W. For example, the deck may be configured to have reinforcing members such as steel rods, angle steel, channel steel, I-beams, H-beams, T-beams, corrugated steel, etc., or members made of other materials, which are arranged between adjacent joint components at a predetermined distance along the longitudinal direction of the edge surface, and which have one end joined to one of the joint components by a joining means such as welding or bolts, and the other end joined to the other joint component by a joining means such as welding or bolts. [Explanation of symbols]

[0030] 1 Deck joint device, 2 receiving member (joint component), 10 deck, 9 reinforcing member, 11 edge surface of deck slab, 12 joint, 91 reinforcing plate portion (reinforcing portion), 92 end side engagement portion, X direction of the bridge axis, Y direction perpendicular to the bridge axis.

Claims

1. A rectangular plate-shaped reinforced concrete deck slab that is installed adjacent to the bridge girder via joints and connected by a deck joint device, A deck characterized in that the edge surface side adjacent to the joint has a plurality of joint components that constitute a deck slab joint device, spaced at a predetermined interval along the longitudinal direction of the edge surface, and a reinforcing member is provided between adjacent joint components that are spaced at a predetermined interval along the longitudinal direction of the edge surface.

2. The reinforcing member includes a reinforcing portion and end-side engaging portions provided on both end sides of the reinforcing portion, A deck as described in claim 1, characterized in that each end side engagement portion is engaged with each adjacent joint component member at a predetermined interval along the longitudinal direction of the edge surface, and the reinforcing portion is embedded in the concrete of the deck so as to extend between each adjacent joint component member at a predetermined interval along the longitudinal direction of the edge surface.

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