JPH10109369A - Structural member of fiber-reinforced synthetic resin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the crossectional rigidity of an FRP structural member by filling a cavity or a recessed part in a coated material with the cavity or the recessed part consisting of a fiber-reinforced synthetic resin material with a mortar or a concrete filler. SOLUTION: A coated material 11 which constitutes a beam member 101 is a member of fiber-reinforced rigid resin formed in a near T-shape hollow cylinder. The coated material 11 is, for example, manufactured by a drawing method. That is, a stack of filament 11b, mats 11c, 11d and protecting materials 11e, 11f is impregnated with a liquid thermosetting resin materix 11a, and this laminate is drawn into a mold and the matrix 11a is thermally set. A hollow cylindrical coated material 11 is molded by continuously drawing the coated material 11 from the mold by a puller under a state in which the matrix is thermally set. A filler 12 is packed into an almost T-shape cavity formed in the coated material 11, and is mortar such as light-weight concrete or a concrete filler blended so that it is unshrinkable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fiber-reinforced synthetic resin structural member in which a mortar-based or concrete-based filler is filled in a covering made of a fiber-reinforced synthetic resin material.

[0002]

2. Description of the Related Art Conventionally, there has been known a structural member made of fiber reinforced synthetic resin made of fiber reinforced synthetic resin (hereinafter, referred to as "FRP"; FRP: Fiber Reinforced Plastics) in which fibers such as glass fiber are arranged in synthetic resin. I have. This fiber-reinforced synthetic resin structural member was formed into a hollow cylindrical shape having a T-shaped cross section by FRP, and was used as a beam or the like in the structure. Such a hollow structural member made of FRP is lightweight and resistant to corrosion, and has been used in a beach area or the like where these functions are required.

[0003]

However, in the above-mentioned conventional hollow structural member made of FRP, sufficient strength could be secured and there was no particular problem, but the rigidity of the cross section could not be increased so much. For this reason, when used as a beam, for example, the amount of flexural deformation is large, and the function required for the structure may not be performed in some cases. This is presumably because the deformation constraint in the cross section is small and the corners of the cross section are weak points against the deformation.

In order to solve the above-mentioned problem, a measure is taken to provide a reinforcing rib in a hollow portion in a large-sized structural member having a large cross section, but even if such a measure is taken,
The deformation constraint in the cross section is not perfect, and it is difficult to increase the cross section rigidity against deformation.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an FRP structural member having a large sectional rigidity.

[0006]

In order to solve the above-mentioned problems, a fiber-reinforced synthetic resin structural member according to the present invention is formed of a fiber-reinforced synthetic resin material and has a shape having one or a plurality of cavities or recesses. It is characterized by comprising a covering material and a mortar-based or concrete-based filler filled in a part or the whole of the cavity or the concave portion.

In the above, preferably, the coating material is a long fiber made of glass, carbon or synthetic resin,
Alternatively, the reinforcing member is reinforced by any one of glass, carbon, or a synthetic resin, or an appropriate combination thereof.

[0008] In the above, preferably, the filler is mortar, concrete, or lightweight concrete mixed so as to have no shrinkage.

In the above, preferably, the filler is reinforced by any of short fibers, streak-like reinforcing material, steel frame, or an appropriate combination thereof.

In the above, preferably, the short fibers include any one of steel fibers, glass fibers, carbon fibers, and synthetic resin fibers, or an appropriate combination thereof.

In the above, preferably, the streak reinforcing material includes any one of a reinforcing steel bar and a fiber-reinforced synthetic resin reinforcing bar, or an appropriate combination thereof.

In the above, it is preferable that the long fiber or the flat reinforcing material and the flat reinforcing material in the coating material are between the filler and the filler. Between the outer surface of the coating material,
A protective material for preventing deterioration or corrosion of the long fiber or the flat reinforcing material is provided.

[0013] In the above, preferably, the protective material is formed of a nonwoven fabric made of a synthetic resin material.

In the above, preferably, the coating material is produced by a pultrusion molding method or an extrusion molding method.

[0015] In the above, preferably, the covering material is formed in a hollow cylindrical shape.

In the above, preferably, in the covering material, the cavity or the concave portion is divided into a plurality of chambers or portions by partition walls.

In the above, it is preferable that the coating material is formed in a hollow cylindrical shape having one end opened and the other end closed, and the unsolidified filler is filled from the open end and then solidified. Let it.

In the above, preferably, the coating material is formed in a hollow cylindrical shape with both ends closed and has a filling hole, and after the unsolidified filler is filled from the filling hole, it is solidified. Let it.

Further, in the above, it is preferably used for a guide wheel running path constituting a guideway of a magnetic levitation railway.

[0020]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a view showing a configuration of a beam member which is a first embodiment of a fiber-reinforced synthetic resin structural member according to the present invention. FIG. 1 (A) is a perspective view showing the entire configuration, and FIG. () Shows a partially enlarged perspective view showing the configuration of the covering material. As shown in FIG. 1 (A), this beam member 101 is composed of a covering material 11 and a filling material 1.
2 is provided.

The coating material 11 is a member made of a fiber-reinforced synthetic resin and formed in a substantially "T" -shaped hollow cylindrical shape. As shown in FIG. 1 (B), the covering material 11 includes a long fiber 11b, mats 11c and 11c in a base material 11a made of a synthetic resin.
d is arranged and reinforced. The mat 11c is disposed on the filler side of the long fiber 11b in the base material 11a,
The mat 11d is arranged on the outer surface side of the long fiber 11b in the base material 11a. In the base material 11a, a protective material 11e is arranged on the filler side of the mat 11c, and a protective material 11f is arranged on the outer surface side of the mat 11d.

As the base material 11a, a thermosetting resin, a thermoplastic resin, a general-purpose resin, engineering plastics, or the like can be used. For example, unsaturated polyester, phenol resin, epoxy resin, ABS resin, polyacetal, polyamide resin and the like can be mentioned.

As the long fibers 11b, glass fibers, carbon fibers, synthetic resin fibers and the like can be used. Examples of the synthetic resin fiber include an aromatic polyamide resin (aramid resin) fiber and the like.

The mats 11c and 11d include:
A woven cloth (cloth) or nonwoven cloth made of glass fiber, carbon fiber, synthetic resin fiber, or the like can be used. Examples of the synthetic resin fiber include an aromatic polyamide resin fiber and the like. The mats 11c and 11d correspond to flat members.

The arrangement of the long fibers and the mat in the covering material 11 may be reversed from the above. For example, the long fibers may be arranged on the upper and lower sides of the mat so as to sandwich the mat. Further, the mat may be arranged on only one of the filler side of the long fiber and the outer surface side of the long fiber. Alternatively, either long fiber or mat,
Alternatively, both may be arranged in a plurality of layers.

The protective material 11e is
It is arranged on the filler side of the mat 11c. This protective material 11
In the case where the filler 12 is a cement-based material such as cement mortar or cement concrete, the filler e shows alkalinity, and is arranged to prevent the mat 11c from being chemically altered or corroded. is there. In the case where the long fibers 11b are arranged near the filler in the covering material 11, the protective material 11e may be arranged on the filler side of the long fibers 11b.

The protective material 11f is arranged in the covering material 11 on the outer surface side of the mat 11d. The protective member 11f is provided to prevent environmental conditions such as ultraviolet rays from chemically changing or corroding the mat 11d. In the case where the long fibers 11b are arranged near the outer surface in the covering material 11, the protective material 11f may be arranged on the outer surface side of the long fibers 11b.

The protective materials 11e and 11f include:
A nonwoven fabric made of a synthetic resin material such as polyester can be used. In addition, these protective materials 11e and 11f are:
Depending on the material of the filler and the external environmental conditions of the covering material, it is not necessary to provide the filler.

The above-described coating material 11 is manufactured by, for example, a “pultruding method”. In this pultrusion molding method, a thermosetting resin is used as the base material 11a, the long fibers 11b, the mats 11c and 11d, and the protective materials 11e and 11f are superimposed and impregnated with a liquid base material 11a, and a mold (not shown) is used. And the base material 11a is hardened by heating. In the cured state, the coating material 11 in the mold is pulled by a puller (not shown)
By continuously pulling the hollow cylindrical covering material 11
Is molded.

The coating material 11 can also be manufactured by an "extrusion molding method" using a thermoplastic resin as the base material 11a.

The filler 12 is filled in a substantially “T” -shaped cavity in the covering material 11. As the filler 12, mortar or concrete such as cement mortar mixed to have no shrinkage, cement concrete mixed to have no shrinkage, lightweight concrete mixed to have no shrinkage Fillers of the system can be used.

The non-shrinkable cement mortar can be produced by mixing and kneading an expanding material, an admixture, an admixture, etc. in addition to cement, water and sand. In addition, non-shrinkable cement concrete is produced by mixing and kneading an expanding material, an admixture, and an admixture in addition to cement, water, fine aggregate (sand), and coarse aggregate (gravel). Can be. The non-shrinkable lightweight concrete can be produced by using a porous artificial lightweight aggregate or the like as the coarse aggregate in the non-shrinkable concrete.

Further, in the above-mentioned non-shrink mortar, non-shrink concrete, and non-shrink lightweight concrete, in addition to the above composition, a polymer admixture such as styrene-butadiene rubber latex or an emulsion of ethylene vinyl acetate and polyacrylate is further added. By mixing, a polymer cement mortar or polymer cement concrete using both cement and polymer as a binder may be obtained. Alternatively, a polymer mortar or a polymer concrete may be used in which a thermosetting resin or a thermoplastic resin is used as a binder and the aggregates are bound together without using cement at all. In addition, cement mortar after curing,
Alternatively, a polymer-impregnated mortar or polymer-impregnated concrete in which a monomer or the like is impregnated in cement concrete and integrated with a polymer may be used.

The filler 12 is prepared by mixing and kneading the materials.
It is formed by filling and solidifying the hollow portion of the coating material 11 in an unsolidified fluid state.

The filler 12 may be reinforced by mixing short fibers. When the filler 12 is cement concrete, fiber reinforced concrete (FRC: Fiber Re
inforced Concrete). As this short fiber,
Short fibers made of steel, glass, carbon, synthetic resin and the like can be used. Examples of the synthetic resin fiber include an aromatic polyamide resin fiber and the like. Not only these short fibers alone, but also an appropriate combination of these short fibers can be used.

The filler 12 may be reinforced by embedding a streak reinforcing material inside. As the streak reinforcing member, a reinforcing bar, a member formed of a fiber-reinforced synthetic resin in a reinforcing bar shape (hereinafter, referred to as “FRP bar”), or the like can be used.
The FRP streaks are formed by reinforcing long fibers (not shown) in a longitudinal direction inside a streaked base material (not shown) made of a synthetic resin such as an aromatic polyamide resin. As synthetic resin, the same as 11a, but as long fiber,
11b can be used. In the case where the filler 12 is cement concrete and the reinforcing member is a reinforcing bar, reinforced concrete (RC: Reinforced Concrete) is used.
e). The above-mentioned streaky reinforcing material includes a long-fiber member made of a synthetic resin such as an aromatic polyamide resin.

The filler 12 may be reinforced by embedding a steel frame therein. As the steel frame, for example, a mold steel such as an H-shaped steel or an angle steel, or a member obtained by combining these mold steels by welding or the like can be used. When the filler 12 is cement concrete, it becomes steel frame concrete (SRC: Steel Reinforced Concrete). Further, the reinforcement may be performed not only by the short fiber, the streak reinforcing material, or the steel frame alone, but also by an appropriate combination of these.

Next, FIG. 2 shows the results of a test in which a load was applied to the beam member 101 shown in FIG. FIG. 2A shows the beam member 1.
FIG. 2 is a load-displacement curve diagram when a load P is applied to FIG.
(B) shows the loading conditions of the load P, respectively. As shown in FIG. 2B, the beam member 10 used for the loading test was used.
1 has a total length of 1760 mm and is simply supported, and a load of P / 2 is applied to a point 587 mm from both fulcrums. The displacement was measured at the center point c of the beam member.

The results of the loading test are shown in FIG.
(Curve connecting white square points). For comparison, the same loading was performed on a member (hereinafter, referred to as an “unfilled beam member”) in which only the covering material 11 was removed from the beam member 101 except for the filler 12, and FIG.
The curve shown by b in FIG. 7A (curve connecting black triangle points) was obtained.

As can be seen from the results, in the case of the unfilled beam member, the displacement increases rapidly when the load P becomes about 4t. On the other hand, in the case of the beam member 101 of the present embodiment, the rate of increase of the displacement with respect to the load is substantially constant until the load is about 18 t, and is smaller than the rate of increase of the displacement of the unfilled beam member. In addition, the displacement at the point (bending point) immediately before a sharp change occurs in the load-displacement curve of the unfilled beam member of FIG. 2A is about 7.5 mm when the load is about 4.0 t, In the beam member 101 of the present embodiment, the displacement becomes about 7.5 mm when the load is about 10.5 t. As described above, the beam member 101 of the present embodiment is different from the case where only the unfilled covering material is used.
It can be seen that the amount of flexural deformation with respect to the load is small and the cross-sectional rigidity of the beam is increased.

Next, a second embodiment of the fiber-reinforced synthetic resin structural member according to the present invention will be described. FIG. 3 shows a floor slab member according to a second embodiment of the present invention and the above-described beam member 1.
It is a perspective view which shows the civil engineering structure comprised using No. 01. As shown in FIG. 3, the floor slab member 102 includes a covering material 21 and a filler 22.

The covering material 21 is a member made of a fiber-reinforced synthetic resin and formed in a flat, substantially “b” -shaped hollow cylindrical shape.
The covering material 21 has the same configuration as the covering material 11 in the beam member 101, and is manufactured by a similar method. The filler 22 is a mortar-based or concrete-based filler that fills a substantially “U” -shaped cavity in the covering material 21, and has the same configuration and composition as in the case of the beam member 101.

Referring to FIG.
The beam members 101 are arranged at a predetermined interval on the beam member, a beam fixing bolt 202A is inserted into a bolt hole (15 in FIGS. 5 and 6) provided in advance in the beam member 101, and a beam fixing nut 202B is fastened. 101 is fixed to pedestal concrete 203. Further, floor slab fixing bolts 201A are attached to the beam members 101 in advance, and after the floor slab fixing bolts 201A are inserted into bolt holes (not shown) provided at corresponding positions of the floor slab members 102 in advance. The slab fixing nut 201B is fastened to fix the slab member 102 to the beam member 101. Thus, the floor slab structure can be formed. Such a structure is suitable for a corrosive environment such as a beach area.

Next, FIG. 4 shows an example in which the above-mentioned beam member 101 is used for a guide wheel running path of a magnetic levitation type railway guideway. FIG. 4A is a cross-sectional view of a high-speed traverser branching device of a magnetic levitation type railway guideway, and the left and right sides of the figure show different cross sections. FIG.
FIG. 4B is a cross-sectional view of a general portion of the guide wheel traveling path, and FIG.
Indicates cross sections of the support device portion of the guide wheel traveling path.

As shown on the left side of FIG. 4A, the guide way 204A includes a coil 205A for levitation and propulsion of a magnetic levitation type vehicle, a support device 206A, and a beam member 101 which is a guide wheel traveling path. It has a support pin 207A.
At the position of the beam member 101 corresponding to the support device 206A,
A pin hole 13 is provided, a support pin 207A is inserted into the pin hole 13, and the beam member 101 is supported by a support device 206A installed on an upper side wall of the guideway 204A. In the vicinity of the pin hole 13,
As shown in FIG. 4C, a reinforcing plate 208 is attached.

The guideway 20 shown on the right side of FIG.
4B also has the same configuration as the guideway 204A, and a levitation / propulsion coil 205B of the magnetic levitation type vehicle.
, A support device 206B, a beam member 101 that is a guide wheel traveling path, and a support pin 207B.

When the beam member 101 is used for the guide wheel running path of the magnetic levitation type railway guideway as described above, a reinforcing member provided inside the filler so as not to hinder the magnetic levitation force or the magnetic propulsion force of the coil. It is desirable that the short fibers and the streaky reinforcing material are made of a low magnetic material such as a synthetic resin or a low magnetic steel.

Next, a method for forming the above-described beam member 101 will be described. FIG. 5 is a perspective view showing a forming method when the beam member 101 is formed by a precast method. In this manufacturing method, the covering material 11 is formed in a hollow cylindrical shape in which the right end of the drawing is opened and the left end (not shown) of the drawing is closed. In addition, the covering material 11 is provided on the receiving beams 210 transferred on the receiving stands 209A and 209B having different heights.
It is placed in an inclined state such that the right end is high and the left end is low. A hole 14 for venting air is provided on the left side of the covering material 11.
Is provided. In this state, the unsolidified filler 12 is filled into the internal cavity from the opened right end and solidified to form the beam member 101. In FIG.
Is a hole for inserting a bolt for fixing to the pedestal concrete 203 or the like in FIG. Also, 201
A is a bolt for fixing the floor slab member 102 and the like in FIG.

FIG. 6 is a perspective view showing a forming method when the beam member 101 is formed on site. In this production method, the covering material 11 is hollow cylindrical and both ends are closed by the lids 17. Further, the covering material 11 is supported by a support structure such as a reinforced concrete structure. A hole 16 for filling is provided on the right side of the covering material 11. In this state, the unsolidified filler 12 is filled into the internal cavity from the filling hole 16 and solidified to form the beam member 101. In FIG. 6, reference numeral 15 denotes a hole for inserting a bolt for fixing to the cradle concrete 203 or the like in FIG. Further, 201A is a bolt for fixing the floor slab member 102 and the like in FIG.

Next, a third embodiment of the fiber-reinforced synthetic resin structural member according to the present invention will be described. FIG. 7 is a perspective view illustrating a configuration of a beam member according to a third embodiment of the present invention. As shown in the figure, this beam member 103 is
And a filler 32.

The covering material 31 includes an upper plate 31A and an I-shaped girder 31.
B and 31C, and a lower plate 31D, which are combined so as to form a substantially "b" -shaped hollow cylindrical shape as a whole, and are fixed by bonding or a coupling tool such as a bolt or a nut. The upper plate 31A, the I-shaped beams 31B and 31C, and the lower plate 31
D is a member made of a fiber-reinforced synthetic resin, and is a beam member 101.
Has the same configuration as that of the coating material 11 and is manufactured by the same method. The filler 32 is a mortar-based or concrete-based filler that fills a substantially “U” -shaped cavity in the covering material 31.
Is the same as

As in the third embodiment, the present invention can be realized by forming a covering material by combining a plurality of members, instead of the integrally formed covering material.

Next, a fourth embodiment of the fiber-reinforced synthetic resin structural member according to the present invention will be described. FIG. 8 is a perspective view illustrating a configuration of a beam member according to a fourth embodiment of the present invention. As shown in FIG.
, A filler 42, and a connecting member 43.

The covering material 41 is substantially “T” having an open top.
A partition 45 is provided in a vertical portion of the U-shaped groove-shaped member, and has a substantially “T” -shaped concave portion and a substantially “B” -shaped cavity. The covering material 41 is a member made of fiber reinforced synthetic resin, has the same configuration as the covering material 11 in the beam member 101, and is manufactured by the same method.

The filler 42 is a mortar-based or concrete-based filler that is filled in the substantially “T” -shaped concave portion and the substantially “B” -shaped cavity of the covering material 41. This is the same as the case of the member 101. As described above, when the partition 45 is provided to partition the cavity inside the covering material 41 into a plurality of chambers, the partition 45 functions as a reinforcing rib, and the rigidity of the entire beam member 104 can be increased. Further, as shown in the figure, the filler 42 may be reinforced by embedding a reinforcing bar 44 or the like inside.

The connecting member 43 is disposed near the upper opening of the covering member 41 and prevents the covering member 41 and the filling member 42 in the substantially "T" -shaped horizontal portion from being deformed.

As in the fourth embodiment, the present invention can be realized even if the filling material is filled not in the cavity inside the coating material but in the concave portion formed by the coating material. In this case, if necessary, a separation preventing device such as a dowel for preventing the filler from separating from the coating material may be provided.

The present invention is not limited to the above embodiments. The above embodiment is an exemplification, and has substantially the same configuration as the technical idea described in the scope of the claims of the present invention. It is included in the technical scope of the invention.

For example, in each of the above embodiments, the beam member and the floor slab member have been described as examples of the structural member made of the fiber-reinforced synthetic resin. However, the present invention is not limited to this. Structural members, such as column members, wall members,
It may be used as another reinforcing member or a stiffening member. Further, as the external force supported by the fiber-reinforced synthetic resin structural member, besides each of the tensile force, the compressive force, the bending, the shearing, and the torsion, an appropriate combination of these may be applied. .

In each of the above embodiments, an example in which the coating material is manufactured by a pultrusion molding method (or an extrusion molding method) has been described. However, the present invention is not limited to this, and the manufacturing method is not limited thereto. May be. For example, a "hand processing method (hand lay-up method)" in which a glass mat or glass cloth impregnated with a synthetic resin is placed on a mold and formed into a shape according to the shape by a human hand, or impregnated with the synthetic resin "Vacuum molding method" in which a glass mat, glass cloth, etc. is placed on a mold and adhered to the mold by suction using a vacuum pump, etc., and molded into the shape according to the mold, glass mats, glass cloth, etc. impregnated with synthetic resin `` Pressure bag molding method '' that puts on a mold and blows compressed air to make it adhere to the mold and mold it into the shape according to the mold, put a glass mat or glass cloth impregnated with synthetic resin on the lower mold "Matched die molding method", in which the upper mold is pressed to mold to the exact shape, a glass mat, glass cloth, etc. And "spray-up molding method" and the like to be formed into the shape of the mold as by blowing a mixture of agents.

In each of the above embodiments, the shape of the hollow inside the covering material or the shape of the concave portion provided in the covering material is exemplified by a substantially “T” -shaped cross section and a substantially “B” -shaped cross section. However, the present invention is not limited to this,
Other cross-sectional shapes, for example, a substantially “I” -shaped cross-section, a substantially “L” -shaped cross-section, a substantially “H” -shaped cross-section, a substantially “U-shaped” cross-section,
A circular cross section, a polygonal cross section, or the like may be used.

In the above-described fourth embodiment,
Although the example in which the cavity inside the coating material is divided into a plurality of chambers by the partition wall has been described, the present invention is not limited thereto.
The recess provided in the covering material may be divided into a plurality of portions by a partition.

Further, in each of the above embodiments, the case where the number of the cavity formed inside the covering material or the number of the concave portion provided in the covering material is one has been described as an example. The present invention is not limited to this, and one or more partition walls or the like may be appropriately provided to form a plurality of cavities or concave portions. In addition, all of the one or more cavities or recesses may be filled with a filler, or some of them, that is, a part of one cavity or recess, or some of the plurality of cavities or recesses. May be filled with a filler. If only a part of the cavity or the concave portion is filled in this way, it is possible to further reduce the weight of the fiber-reinforced synthetic resin structural member. Further, a part or all of the cavity or the concave portion filled with the filler may be reinforced by short fibers, streak reinforcing members, steel frames, or an appropriate combination thereof.

In the embodiment shown in FIG. 5,
An example in which one end of the coating material is opened and the other end is closed, and in the embodiment shown in FIG. 6, an example in which both ends of the coating material are closed, are shown, but the present invention is not limited to this. Instead, both ends of the covering material are opened, and only one or both ends of the covering material are closed with a temporary lid or the like only at the time of filling with the filler,
The lid may be removed after the filler has solidified.

[0065]

As described above, according to the present invention,
Since the mortar-based or concrete-based filler is used to fill part or all of the cavity or recess of the covering material formed of a fiber-reinforced synthetic resin material and having one or more cavities or recesses, it is lightweight. And resistant to corrosion,
In addition, the cross-sectional rigidity of the fiber-reinforced synthetic resin structural member can be increased. As a result, it is possible to increase the deformation constraint in the cross section, and when used as a beam, it is possible to reduce the amount of flexural deformation and to sufficiently exhibit the function required for the structure. There are advantages.
In addition, thereby, it is effective as a structural member requiring low magnetism or a member applied to an environment that is easily corroded,
There is also an advantage that the fiber-reinforced synthetic resin structural member can be used as a formwork when casting concrete.

[Brief description of the drawings]

FIG. 1 is a view showing a configuration of a beam member according to a first embodiment of the present invention. FIG. 1 (A) is a perspective view showing an overall configuration, and FIG. 1 (B) is a view showing a configuration of a covering material. Part enlarged perspective views are shown, respectively.

2A and 2B are diagrams showing the results of a loading test of the beam member shown in FIG. 1. FIG. 2A is a load-displacement curve diagram when a load is applied to the beam member shown in FIG. B) shows the loading condition of the load P, respectively.

FIG. 3 is a perspective view illustrating a civil structure including a floor slab member according to a second embodiment of the present invention and the beam members illustrated in FIG. 1;

FIG. 4 is a diagram showing an example in which the beam member shown in FIG. 1 is used for a guide wheel running path of a magnetic levitation type railway guideway.
FIG. 4A is a cross-sectional view showing a configuration of a magnetic levitation type railway guideway, and FIG. 4B is a cross-sectional view of a general portion of a guide wheel traveling path.
FIG. 4C shows a cross section of the support device portion of the guide wheel traveling path.

FIG. 5 is a perspective view showing a production method when the beam member shown in FIG. 1 is produced by a precast method.

FIG. 6 is a perspective view showing a creation method when the beam member shown in FIG. 1 is created by on-site construction.

FIG. 7 is a perspective view illustrating a configuration of a beam member according to a third embodiment of the present invention.

FIG. 8 is a perspective view illustrating a configuration of a beam member according to a fourth embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 11 coating material 11a base material 11b long fiber 11c, 11d mat 11e, 11f protective material 12 filling material 13 pin hole 14 air vent hole 15 bolt hole 16 filling hole 17 lid 21 covering material 22 filling material 31 covering material 31A upper plate 31B, 31C I type girder 31D Lower plate 32 Filler 41 Covering material 42 Filler 43 Connecting material 44 Reinforcing bar 45 Partition wall 101, 103, 104 Beam member 102 Floor member 201A Floor fixing bolt 201B Floor fixing nut 202A Beam fixing bolt 202B Beam Fixing nut 203 Cradle concrete 204A, 204B Guide way 205A, 205B Coil 206A, 206B Support device 207A, 207B Support pin 208 Reinforcement plate 209A, 209B Cradle 210 Receiving beam 211 Support structure

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Naoji Sato 1-5-5 Minamihonmachi, Joetsu-shi, Niigata Inside Arisawa Manufacturing Co., Ltd.

Claims (14)

[Claims] 1. A covering material formed of a fiber-reinforced synthetic resin material and formed in a shape having one or a plurality of cavities or concave portions, and a mortar-based or concrete-based filling filled in a part or all of the cavities or concave portions. And a structural member made of fiber-reinforced synthetic resin. 2. The structural member made of fiber-reinforced synthetic resin according to claim 1, wherein the covering material is a long fiber made of glass, carbon, or synthetic resin, or a flat reinforcing material made of glass, carbon, or synthetic resin. Characterized in that the structural member is reinforced by any one of the above or an appropriate combination thereof. 3. The structural member made of a fiber-reinforced synthetic resin according to claim 1 or 2, wherein the filler is mortar, concrete or lightweight concrete compounded so as to have no shrinkage. A structural member made of fiber-reinforced synthetic resin. 4. The structural member made of a fiber-reinforced synthetic resin according to claim 1, wherein the filler is any one of a short fiber, a streak reinforcing member, and a steel frame. Or a fiber-reinforced synthetic resin structural member reinforced by an appropriate combination thereof. 5. The structural member made of a fiber-reinforced synthetic resin according to claim 4, wherein the short fiber is any one of a steel fiber, a glass fiber, a carbon fiber, and a synthetic resin fiber, or an appropriate combination thereof. A structural member made of a fiber-reinforced synthetic resin, comprising: 6. The structural member made of fiber reinforced synthetic resin according to claim 4, wherein the streak reinforcing material includes any one of a reinforcing bar and a fiber reinforced synthetic resin bar, or an appropriate combination thereof. A structural member made of a fiber-reinforced synthetic resin, characterized by the following. 7. The structural member made of fiber reinforced synthetic resin according to claim 2, wherein the long fiber or the flat reinforcing material in the covering material and the filler and the filler in the covering material. A fiber reinforcement, wherein a protective material for preventing deterioration or corrosion of the long fibers or the flat reinforcing material is disposed between the long fibers or the flat reinforcing material and the outer surface of the covering material. Structural member made of synthetic resin. 8. The fiber-reinforced synthetic resin structural member according to claim 7, wherein the protective material is formed of a nonwoven fabric made of a synthetic resin material. 9. The fiber-reinforced synthetic resin structural member according to claim 1, wherein the covering material is manufactured by a pultrusion molding method or an extrusion molding method. Structural members. 10. The fiber-reinforced synthetic resin structural member according to claim 1, wherein the covering material is formed in a hollow cylindrical shape. . 11. The fiber-reinforced synthetic resin structural member according to claim 1, wherein said cavity or recess is divided into a plurality of chambers or portions by partition walls. Resin structural member. 12. The fiber-reinforced synthetic resin structural member according to claim 10, wherein the covering material is formed in a hollow cylindrical shape having one end opened and the other end closed, and the unsolidified filler is provided. And solidifying after filling from the open end. 13. The fiber-reinforced synthetic resin structural member according to claim 10, wherein the covering material is formed in a hollow cylindrical shape with both ends closed, has a filling hole, and is not solidified. Is solidified after filling from the filling hole. 14. The fiber-reinforced synthetic resin structural member according to claim 1, wherein the structural member is used for a guide wheel running path constituting a guideway of a magnetically levitated railway. Resin structural member.