JP2015110860A - Floor material and floor structure of road surface in combination with floor material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor material which is made using highly corrosive FRP, and can be produced simply and in a short period and secures sufficient strength.SOLUTION: A floor material of the invention has an FRP-made top plate, and an FRP-made lattice member supporting the top plate below the top plate. The top plate and the lattice member are integrally molded. A base plate supporting the lattice member below the lattice member is provided, and the base plate is coupled to the lattice member. Concrete is put on the top plate.

Description

  The present invention relates to a flooring material that can be manufactured easily and in a short period of time and can secure sufficient strength while using FRP (fiber reinforced plastic) having high corrosion resistance.

  The floor structure of buildings and structures is generally made of steel, concrete slabs, precast concrete, etc., but in recent years, the weight of the frame and the rationalization of construction, life cycle costs and material recycling perspectives Therefore, social needs to use various new materials as floor materials are increasing.

  In particular, in recent years, large-scale disasters such as the Great East Japan Earthquake and a powerful typhoon have occurred frequently, and many bridges have collapsed. Although it is central, steel and concrete are heavy and inevitably require a strong foundation, leading to large-scale foundation work, a large amount of construction materials, and a longer construction period. In addition, the maintenance cost is high due to high corrosivity.

  On the other hand, as shown in Patent Document 1 and Patent Document 2, various building materials using FRP (fiber reinforced plastic) as a raw material have been studied as floor materials. This is because FRP is advantageous in that it is overwhelmingly superior in light weight and corrosion resistance as compared with steel and concrete.

  However, conventionally, when FRP is used as a flooring material, precast concrete has been replaced with FRP panels as they are, but in the case of joining FRP panels, there are problems of durability and prolongation of construction time. Was not solved. Therefore, the development of FRP bridges and FRP temporary bridges aimed at disaster recovery had to be sluggish.

JP-A-11-198264 JP 2001-253001 A

  The present invention provides a flooring material that has been created in view of the above circumstances and that can be manufactured easily and in a short period of time while ensuring sufficient strength while using FRP having high corrosion resistance. For the purpose.

  In order to achieve the above object, according to the first aspect of the present invention, an FRP top plate and an FRP lattice member (hereinafter referred to as a “lattice member”) carrying the top plate below the top plate are provided. And a flooring in which the top plate and the lattice member are integrally molded.

  Since the present invention is a flooring made of FRP, it has higher corrosion resistance than a flooring made of steel or a flooring made of concrete, and can be reduced in weight. In addition, FRP was considered to have low rigidity, low shear resistance, low bending resistance, and high coefficient of thermal expansion as a material, so that it was not highly applicable to flooring. As a result, it has been found that the rigidity becomes high and the coefficient of thermal expansion becomes low, and the applicability to the flooring becomes high. Further, when a lattice-like FRP is employed, the material can be reduced, which is favorable in terms of cost. Further, in the present flooring material, in addition to the lattice-shaped FRP, an FRP panel is provided on the top plate, and this is manufactured by integral molding with the lattice-shaped FRP. Accordingly, the rigidity is further increased, and the durability at the joint portion is high due to the integral molding.

  Further, it is preferable that the present floor material includes a bottom plate that supports the lattice member below the lattice member, and the bottom plate is connected to the lattice member.

  As described above, in the present flooring material, the lattice-shaped FRP and the top plate FRP are integrally molded, but here, the bottom plate is further connected below the lattice-shaped FRP. This further increases the rigidity. The bottom plate may be FRP or a plate member made of other materials.

  In addition, concrete may be laid on the top of the top board to be laid.

  When a plate-like FRP top plate is joined to a grid-like FRP, if a load is applied to the top plate or vibration is generated, the joint between the top plate and the lattice portion is likely to concentrate stress and local displacement is also caused. Prone to occur. This can be a factor that degrades the durability performance. If concrete is placed on the top surface of the top plate, the concrete has high bending resistance, so that the displacement of the joint portion can be suppressed, so that the durability of the flooring can be further improved.

  The second aspect of the present invention provides a road floor structure in which floor materials are combined. According to the present floor structure, each floor material has a shape that allows the floor materials to be fitted to each other at an end portion (for example, a side portion in an embodiment described later) of the floor structure. And the said floor structure fits and connects each said flooring material in the state which filled the adhesive agent to the advancing side edge part of this flooring material.

  According to the present floor structure, the floor materials described above are connected, and the floor materials are connected to each other to connect one floor structure. In particular, when this FRP flooring is used for a bridge or the like, a shearing force acts from above the road surface, and a large bending moment acts because the road surface is long in the traveling direction. Therefore, the connection technology in the traveling direction of the road surface is important. In the case of the present floor structure, the floor material is shaped so that the end faces can be fitted to each other, and the gap is filled with an adhesive in the fitted state. In the case of this connection method, a floor structure having high shear resistance can be provided.

  Further, in the floor structure of the main road surface, each floor material is provided with a concave portion at an end portion on the traveling direction side of the floor structure, and the floor structure is positioned so that the concave portions of the floor materials face each other. It may be connected by filling the concave portion with an adhesive.

  In the present floor structure, a concave portion is provided on the end surface in the traveling direction of each floor material, and these are combined. In the above-described floor structure, they are combined so as to be fitted to each other, but here, the concave portion and the concave portion are connected to face each other. Therefore, although there is no coupling force in a state where the adhesive is not filled, the adhesive can be reliably filled in a certain amount or more, and in that respect, the coupling force, particularly the shear resistance can be increased.

  Further, in the present floor structure, the floor materials can be connected to each other by bolt fastening at the end of the floor structure on the traveling direction side.

  In the case of this floor structure, since it is fastened with bolts, it is inferior in shear resistance as compared with the above two floor structures, but on the other hand, it can provide a connection method with a large bending resistance.

  The floor material of the present invention and the road surface structure combined with the floor material provide a floor material that can be manufactured easily and in a short period of time and that can secure sufficient strength while using FRP having high corrosion resistance. be able to.

1 shows a schematic configuration of a flooring 1 according to a first embodiment of the present invention, where (a) is a front view of the flooring 1 and (b) is a plan view of the flooring 1 (line AA in (a)). (View), (c) is sectional drawing along line B-Bni of (a), (d) has shown the right view of the flooring 1. FIG. A sectional view taken along line B-Bni in FIG. The perspective view of a lattice member is shown, (a) is the whole perspective view, (b) is an enlarged view of dotted line field X. The modification of the flooring shown in FIGS. 1-2 is shown, The front view of a flooring, (b) is a top view (line AA view of (a)), (c) is a flooring A right side view of the material is shown. A sectional view in the height direction of the flooring is shown. 1A is a cross-sectional view taken along line BB in FIG. 1C, FIG. 1B is a cross-sectional view taken along line B′-B ′ in FIG. 4C, and FIG. A variation is shown. (A) is the figure which expanded the dotted line area Y of FIG.5 (c), (b) is the figure which expanded the dotted line area Z of (a). An example of the lattice shape of the lattice member is shown, (a) shows the square lattice shape in FIGS. 1 to 6, (b) is a triangular lattice shape, and (c) is a hexagonal lattice shape. , (D) shows a round lattice shape. The connection method of the advancing direction of the road surface between flooring materials is illustrated. The floor material of (a) has a stepped shape in which the side portions are fitted to each other, and the floor material 1 of (b) has a rectangular uneven shape in which the side portions' are fitted to each other. Further, the floor material 1 of (c) has a hemispherical concavo-convex shape in which the side portions are fitted to each other. The other connection method of the side part of flooring materials is illustrated. As an example of a method for connecting other flooring materials 1 to each other, an example of connecting by bolt fastening is shown.

  The embodiment about the flooring of this invention and the floor structure which combined this is described.

For flooring First, a description will be given of a first embodiment of the flooring material 1. 1-2, the schematic structure of the flooring 1 of 1st Embodiment is shown, (a) is a front view of the flooring 1, (b) is a top view of the flooring 1 ((a). Line A-A), (c) shows a right side view of the flooring 1. FIG. 2 is a cross-sectional view taken along line BB in FIG. In FIG. 2, the lattice member 3 is shown, but the number of lattices is reduced and displayed for easy viewing.

  As shown to Fig.1 (a), as for the flooring 1, the top plate 2 and the lattice member 3 are integrally couple | bonded from the upper direction. The top plate 2 is a plate-like member made of FRP and having a broad width (width Wp> length Lp). When the top plate 2 of the flooring 1 is used as a road surface, the longitudinally long Lp direction is used as the traveling direction of the road surface. Each lattice width (Wc, Lc) of the lattice member 3 is arbitrary. The lattice member 3 will be further described in detail.

  FIG. 3 shows a perspective view of the lattice member 3, (a) is a simplified perspective view of the whole, and (b) is an enlarged view of a dotted line region X. The lattice member 3 includes a plurality of vertical walls 3a and a plurality of horizontal walls 3b substantially orthogonal to the vertical walls 3a. The vertical wall 3a and the horizontal wall 3b are integrally provided at the intersection 3c. The vertical wall 3a is plate-shaped, and is arranged at intervals in the horizontally long direction (Wp direction). The horizontal wall 3b is also a plate-like member, and is arranged at intervals in the longitudinally long direction (Lp direction). In the flooring 1, the lattice member 3 has the vertical wall 3a and the horizontal wall 3b orthogonal to each other, thereby avoiding the disadvantage of FEP that the bending resistance is small. Further, since the flooring 1 is provided with the top plate 2 made of FRP integrally formed above the lattice member 3, the shear resistance is enhanced.

  Referring to FIG. 4, a modification 1 ′ of the flooring 1 shown in FIGS. 1 to 2 is shown. As in FIG. 1, (a) is a front view of the flooring 1 ′, and (b) is a floor. A plan view of the material 1 ′ (viewed along the line AA in (a)), (c) shows a right side view of the flooring 1 ′. In the flooring 1 ′, a bottom plate 4 is provided below the lattice member 3 in addition to the flooring 1. The bottom plate 4 is a plate member. Not only FRP but also non-FRP such as a steel plate may be used. The bottom plate 4 is the same as the top plate 2 and the lattice member 3 in the longitudinal length Lp and the width length Wp. The height Tp of the flooring 1 ′ is longer than the flooring 1 by the thickness of the bottom plate 4 (Tp ′> Tp). Since the flooring 1 ′ has the bottom plate 4, the shear resistance and bending resistance are further increased.

  FIG. 5 shows a sectional view in the height direction of the flooring 1, 1 ′ and other flooring. (A) is a cross-sectional view taken along line BB in FIG. 1 (c), (b) is a cross-sectional view taken along line B′-B ′ in FIG. 4 (c), and (c) Further, (a) and (b) are shown as modifications. Although the flooring materials 1 and 1 'in FIG. 5A are as described above, the flooring material 1 "in FIG. 5C has concrete 6 on the top plate 2 in addition to the flooring material 1 in FIG. 5C, precast concrete is used as the concrete 6, and one segment thereof is placed on the top board 2. The concrete 6 includes cement concrete, asphalt concrete, resin. It includes concrete, etc. Resin concrete is known as a road surface with high impact absorption from above.

  The concrete 6 and the top plate 2 are bonded together with an adhesive 5 for concrete. The adhesive 5 is a moisture curing type epoxy resin adhesive that is filled between the lower surface of the concrete 6 and the upper surface of the top plate 2 and is cured by moisture in the atmosphere. The floor material 1 "in FIG. 5 (c) not only has higher shear resistance than the floor material 1 in FIG. 5 (a), but also a connecting portion (lattice member 3) between the top plate 2 and the grid member 3. The local destruction in the vicinity of the intersection 3c) can also be suppressed, which will be described with reference to FIG.

  6A is an enlarged view of the dotted area Y in FIG. 5C, and FIG. 6B is an enlarged view of the dotted area Z in FIG. The top plate 2 is deformed when a load in the vertical direction or the like is applied to the floor material 1 ″. In FIG. 6A, the deformation state of the floor material 2 is indicated by a dotted line 2 ′. In FIG.6 (b), if the top plate 2 'deform | transforms large as shown in FIG.6 (b), stress will concentrate easily in the junction part of top plate 2' and the vertical wall 3a of a lattice member. This is because the connecting portion with the vertical wall 3a often becomes a point of variation, and can become a vibration node in a vibration state, so that when fatigue progresses, the connecting portion between the top plate 2 and the lattice member 3 Cracks and the like are likely to occur in the vicinity 2′a and 2′b, and there is a possibility that breakage may occur from these portions 2′a and 2′b.

  On the other hand, when the concrete 6 is arrange | positioned through the adhesive agent 5 above the top plate 2, the motion of the top plate 2 is suppressed by the concrete 6. FIG. Thereby, local fatigue and destruction at the intersection 3c of the top plates 2'a and 2'b can be suppressed. In this sense, the durability of the flooring 1 "can be further enhanced. In addition, FIG. 6C shows a flooring 1" in which the bottom plate 4 does not exist as a modification of (a). The flooring material 1 ″ of (c) can also be applied as a modified example of (b).

  1 to 6 have been described on the assumption that the lattice shape of the lattice member 3 is a quadrangle, the lattice shape is not limited to this. FIG. 7 shows an example of the lattice shape of the lattice member 3, (a) shows the rectangular lattice shape in FIGS. 1 to 6, (b) is a triangular lattice shape, and (c) is A hexagonal lattice shape is shown, and (d) shows a round lattice shape.

Will be described embodiments of the floor structure of the next invention combines flooring for floor structure.
FIG. 8 exemplifies a method for connecting the road surfaces in the traveling direction between floor materials. Here, as the flooring material, the case of the flooring material 1 ′ of FIG. In FIG. 8, floor materials 1 ′ are connected to each other on the side portion (side surface) in the traveling direction of the road surface, and this side portion serves as a fitting portion to connect the floor material 1 ′. Specifically, in FIG. 4B, the side 3d1 on the side indicated by the upper side and the side 3d2 indicated by the lower side are connected.

  In the flooring 1 ′ of FIG. 8 (a), the side portions 3d1, 3d2 have a stepped shape that fits together, and in the flooring 1 ′ of (b), the side portions 3d1 ′, 3d2 ′ fit together. It has a hemispherical uneven shape. Further, the floor material 1 ′ of (c) has a rectangular uneven shape in which the side portions 3 d 1 ″ and 3 d 2 ″ are fitted to each other.

  Each flooring 1 'is mutually connected by the connection method of flooring 1' of FIG. 8, and forms one floor structure (not shown). In the case of this connection method, other shapes may be used as long as the flooring materials 1 ′ can fit the side portions 3 d 1, 3 d 2, etc., and the gap 7 is filled with the adhesive 7 in a state of being fitted respectively. . The adhesive 7 is an epoxy resin adhesive or the like. In the case of this connection method, a floor structure having high shear resistance can be provided.

  FIG. 9 shows a connection method other than the connection method in which the side portions 3d1, 3d2 and the like of the flooring materials 1 ′ are fitted and bonded as shown in FIG. The flooring material here is also the flooring material 1 ′ of FIG. 4 having the bottom surface 4 in the same manner as in FIG. 8, and the flooring materials 1 ′ are connected to the side portion (side surface) in the traveling direction of the road surface. The side portions are opposed to each other to connect the flooring 1 '. Specifically, as in FIG. 8, the side portion 3d1 on the side indicated by the upper side in FIG. 4B and the side portion 3d2 indicated by the lower side are connected. In the connecting method of FIG. 9, both (a) and (b) are connected by providing concave portions on the side portions 3d1 and 3d2 of the flooring 1 ′ and filling the gap with an adhesive facing each other.

  In the flooring 1 ′ of FIG. 9A, both the side portions 3d1-1 and 3d2-1 form a hemispherical concave portion and are positioned so that the openings face each other. The side portions 3d-1, 3d2 1 is filled with an adhesive. Moreover, in flooring 1 'of FIG.9 (b), both side part 3d1-2, 3d2-2 forms a rectangular recessed part, and it positions so that mutual opening may oppose, side part 3d-2, 3d2 -2 is filled with an adhesive.

  Similarly to FIG. 8, the floor materials 1 ′ are connected to each other by the connecting method of the floor materials 1 ′ in FIG. 9 to form one floor structure (not shown). In the case of this connection method, the flooring materials 1 ′ only need to have a shape having a concave portion on the side portions 3 d 1-1, 3 d 2-1, etc., and various shapes can be considered for the concave portion. The adhesive 7 is an epoxy resin adhesive or the like as in FIG. Also in this connection method, a floor structure with high shear resistance can be provided.

  FIG. 10 illustrates a connection method by bolt fastening as a method for connecting other floor materials 1 ′. FIG. 10 (a) connects the side portions 3d1-3 and 3d-2-3 of the flooring 1 ′ with bolts 8 and nuts 9 penetrating in the traveling direction of the road surface (left and right direction in the drawing). This connection method is a connection method between floor materials 1 'having a large bending resistance. 10B, the side portions 3d1-4 and 3d2-4 are connected via the upper and lower brackets 10 overlapping the end portions of the top plate 2 and the bottom portion 4, and the space between the brackets 10 is connected. The bolt 11 and the nut 12 are connected so as to be sandwiched.

  As mentioned above, although the embodiment about the flooring in this invention and the floor structure of the road surface which combined this flooring, its concept, and peripheral technology were demonstrated, this invention is not limited to this, Claim and specification It will be understood by those skilled in the art that other variations and modifications can be obtained without departing from the spirit and teaching described in the book.

1, 1 'Floor material 2, 2' Top plate 3 Lattice member 3a Vertical wall 3b Horizontal wall 3c Intersection 3d Side (end)
4 Bottom plate 5 Adhesive 6 Concrete (Precast concrete)
7 Adhesive 8 Bolt 9 Nut 10 Bracket 11 Bolt 12 Nut

Claims (6)

  A flooring material comprising an FRP top plate and an FRP lattice member supporting the top plate below the top plate, wherein the top plate and the lattice member are integrally molded.   The flooring according to claim 1, further comprising a bottom plate that supports the lattice member below the lattice member, and the bottom plate is connected to the lattice member.   The flooring according to claim 1, wherein concrete is disposed on the top plate. A floor structure of a road surface combining the flooring according to any one of claims 1 to 3,
Each of the flooring materials has a shape capable of fitting the flooring materials to each other at an end portion on the traveling direction side of the floor structure,
The floor structure is a road floor structure in which floor materials are combined, wherein the floor materials are coupled and connected in a state in which an adhesive is filled at the advancing side end of the floor material. A floor structure of a road surface combining the flooring according to any one of claims 1 to 3,
Each flooring is provided with a concave portion at the end of the floor structure on the traveling direction side,
The floor structure is positioned so that the concave portions of the respective floor materials are opposed to each other, and is connected by filling the concave portions with an adhesive. Construction. A floor structure of a road surface combining the flooring according to any one of claims 1 to 3,
The floor structure of a road surface combined with floor materials, wherein the floor materials are connected to each other by bolt fastening at an end portion on the traveling direction side of the floor structure.

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