JPH09184203A - Method and device for fixing metal member to concrete, and anchor bolt and shear bearing ring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixing method and device and also associate anchor bolts and shear bearing rings for use in the method, whereby it is possible to suppress dislocation of each anchor bolt relative to a metal member when the anchor bolt is to be installed thereto, allow fixation of metal member such as steel material of a steel building simply, easily and accurately, and increase the fixing strength of the metal member through reinforcing of the shearing force of anchor bolt. SOLUTION: A shearing force reinforcing member 3 is installed on each anchor member 2, which is installed on a concrete foundation 1 so that one end face of the member 3 is flush with the surface of the concrete. The anchor bolt 2 is inserted through a hole 5 provided in a steel material 4 so that it is attached to the surface of the concrete foundation 1. A nut 6 is fitted on the threaded portion 2a of the anchor bolt 2, and a metal member 4 such as steel material is pinched fast between this nut and the shearing force reinforcing member 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for fixing a metal member to concrete, a fixing device therefor, and an anchor bolt used for fixing the same.

[0002]

2. Description of the Related Art FIG. 14 is an explanatory view of a conventional base plate fixing method for a steel frame building.
Is a concrete foundation, and 102 is an anchor bolt that is installed on the concrete foundation 101 by projecting the screw part of the end portion to the outside. The anchor bolt 102 is made of ordinary steel (S).
S400). Reference numeral 103 is a base plate of a steel frame as a steel material, 104 is a hole through which the anchor bolt 102 provided in the base plate 103 is inserted, and 105 is a double nut screwed into the screw portion 102a of the anchor bolt 102.

The anchor bolts 102 are installed on the concrete foundation 101 with accurate positioning before placing concrete. But the anchor bolt 1
No. 02 receives a pressing force from the concrete during the concrete pouring and causes a bending displacement as shown by the dotted line in FIG. 11, and the anchor bolt 10 is inserted into the hole 104 of the base plate 103 attached to the surface where the concrete foundation 1 is formed.
There was a difficulty in assembling that it was difficult or impossible to insert 2.

Therefore, conventionally, in order to eliminate the difficulty in assembling due to the displacement of the anchor bolt, Anchor bolt 10 provided on the base plate 103
The diameter of the second insertion hole 104 is larger than the diameter of the anchor bolt 102 so that the anchor bolt 102 can be inserted as it is even if the anchor bolt 102 is slightly bent, and a clearance of, for example, 17 to 29 mm is provided.

[0005] As shown in FIG. 15, the concrete 101a around the anchor bolt 102 is removed, the anchor bolt 102 is exposed to a gas flame to correct the bent position of the dotted line state to the solid line state, and then the removed concrete 101a is filled. Put it back and fix it.

[0006] As shown in FIG. 16, the anchor bolt 102 is used to form an anchor frame 106, and the tip screw portion 102a of the anchor bolt 102 is projected from the steel material 106a on the end surface of the anchor frame. The wound of iron wire 107 this anchor frame over arm 106 around the net, and performs concreting is positioned, anchor frame 106 in the concrete under construction, i.e. the anchor bolt 102 causing the position deviation There is no.

[0007]

Since the conventional method for fixing a metal member to concrete is constructed as described above, in the above means, the hole diameter is larger than the diameter of the anchor bolt and a gap is generated between them. Therefore, the anchor bolt cannot directly receive the lateral displacement of the base plate (column base) of the steel frame, the initial displacement deformation is large with respect to the shearing force, the displacement rigidity is small, and the deformation is large even under a small load.
Since the maximum shearing force is determined by the destruction of concrete, it is less than the maximum shearing force of the anchor bolt. Therefore, when the shearing force (lateral displacement) of the base plate acts on the anchor bolt during an earthquake, the shearing force acting on the anchor bolt acts on the concrete and destroys the concrete.

According to the above means, the strength of the anchor bolt becomes low, and the anchor bolt becomes slanted, so that the resistance to the shearing force (lateral displacement) becomes weak.

According to the above-mentioned means, since the anchor bolt which directly applies the shearing force to the anchor bolt is of a type that is eccentric from the center of the hole of the base plate and directly applies lateral pressure to the peripheral wall of the hole, the anchor bolt has a high pressure. When using a high-strength bolt (a bolt that is fixed by a strong frictional force due to surface contact) made of a high-strength material (equivalent to F10T or F8T), it cannot be said to be a method of using the feature.

[0010] The means for filling the gap between the hole 104 of the base plate 103 and the anchor bolt 102 with an adhesive or mortar cannot check the degree of deterioration over time of the adhesive or mortar, the degree of shrinkage of different materials, and the degree of injection. And other issues.

The present invention has been made in order to solve the above problems, and suppresses the positional displacement of the anchor bolt to the metal member at the time of installation, and easily fixes the metal member such as the steel material of the steel frame building. -To obtain a fixing method that can be easily and accurately performed and can enhance the shearing force of the anchor bolt to increase the fixing strength of the metal member, a fixing device therefor, and an anchor bolt and a shear bearing ring used for the fixing. The purpose is to

[0012]

According to a method for fixing a metal member to concrete according to the present invention, an anchor bolt assembled with a shearing force reinforcing member has one end surface of the shearing force reinforcing member substantially flush with the concrete surface. As described above, a step of mounting the metal member on the concrete surface by passing the anchor bolt through a hole provided in the metal member, and a nut is screwed into the thread portion of the anchor bolt penetrating the hole of the metal member. And a step of sandwiching and fixing the metal member between the nut and the shearing force reinforcing member.

Further, in the method of fixing a metal member to concrete according to the present invention, an anchor bolt assembled with a shearing force reinforcing member is so constructed that one end surface of the shearing force reinforcing member is substantially flush with the concrete surface. A step of installing on concrete, a step of mounting a metal member on the concrete surface by passing the anchor bolt through a hole provided in the metal member, and a lateral displacement in a gap between the anchor bolt penetrating the hole of the metal member and the hole A step of press-fitting a prevention member, and a step of screwing a nut to a threaded portion of an anchor bolt penetrating a hole of the metal member, and sandwiching and fixing the metal member between the nut and the shearing force reinforcing member; It is characterized by consisting of.

An apparatus for fixing a metal member to concrete according to the present invention comprises an anchor bolt installed on concrete such that one end surface of the assembled shearing force reinforcing member is flush with the concrete surface, and the anchor bolt. The steel material attached to the concrete surface through a hole formed in the steel material, and the steel material is sandwiched between the shearing force reinforcing member by being screwed into the thread portion of the anchor bolt penetrating the hole of the steel material. It is characterized in that it consists of a nut to be fixed.

Further, the device for fixing a metal member to concrete according to the present invention comprises an anchor bolt installed on a concrete foundation so that one end surface of the assembled shearing force reinforcing member is substantially flush with the concrete surface, A metal member that is attached to the concrete surface by passing the anchor bolt through the hole, a lateral slip prevention member that is press-fitted into a gap between the anchor bolt that penetrates the hole of the metal member and the hole, and a hole that penetrates the metal member. And a nut that is screwed into the threaded portion of the anchor bolt and clamps and fixes the metal member between the shearing force reinforcing member and the shearing force reinforcing member.

The lateral deviation prevention member in each of the fixing methods and fixing devices described above has an outer peripheral shape that is inclined from the one end side to the other end side and has a reduced diameter. And on its outer surface,
It is equipped with a cutting blade that penetrates while shaving the hole wall surface of the metal member. Further, it is characterized in that it is provided with a toothed or rib-shaped projection having a groove portion into which a cutting piece carved by a cutting blade is inserted. Further, the lateral deviation prevention member is one or two having different diameters.
It is characterized by two eccentric rings. The metal member is a base plate or a steel plate of a steel frame.

The anchor bolt of the present invention used for fixing a metal member such as a steel material of the steel frame building is characterized in that a deformed rebar as an anchor portion and a high stress bolt as a screw portion are integrated. .

In the shear bearing ring of the present invention used for fixing the metal member, a part of the cylinder is cut away in parallel with the axis to have a C-shaped cross section, and the thickness of both sides of the C-shape is opened. It is characterized in that the layers are formed thinly toward the edges.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.

Embodiment 1 FIG. 1 is an explanatory view of a steel material fixing method for a steel frame building showing Embodiment 1 of the present invention. In FIG. 1, 1 is a concrete foundation and 2 is a screw portion 2a at an end. Of the anchor bolt projecting outwardly and installed on the concrete foundation 1, 3 is a nut as a shearing force reinforcing member previously attached to the anchor bolt, 4 is a base plate made of steel frame as steel material, and 5 is provided on the base plate 4. A hole through which the anchor bolt 2 is inserted, 6 is a tightening nut that is screwed into the threaded portion 2a of the anchor bolt 2 and clamps and fixes the base plate 4 to the concrete foundation, and 10 and 11 are fitted to the anchor bolt 2 so as to sandwich the base plate 4. It is a washer.

Next, the operation will be described. When the anchor bolt 2 is installed on the concrete foundation 1, first, the nut 3 is attached to the anchor bolt 2 in advance, and the anchor bolt 2 is accurately positioned so that the end surface of the nut 3 is substantially flush with the concrete surface. Place concrete. In this case, a nut 3 having a large diameter is assembled in the vicinity of the concrete surface on which the maximum shearing force of the anchor bolt 2 acts, and the nut 3 increases the contact area with the concrete, thereby increasing the shearing rigidity and shearing strength. It is possible to minimize the positional deviation of the anchor bolt 2 when pouring concrete.

As a result, the base plate 4 as a steel material
The anchor bolt 2 can be inserted into the hole 5 without any positional deviation correction and can be placed on the concrete foundation. The screw portion 2a of the anchor bolt 2 inserted through the hole 5
By screwing the tightening nut 6 onto the base plate 4, the base plate 4 can be easily and quickly fixed to the concrete foundation 1. Further, since the contact area of the anchor bolt 2 with the concrete is increased by the screwed nut 3, even if a shearing force is generated between the anchor bolt 2 and the base plate 4, the concrete is less likely to be destroyed.

Embodiment 2 FIG. 2 is an explanatory view of a steel material fixing method for a steel frame building showing Embodiment 2 of the present invention. In FIG. 2, 7 is a washer 10 and a base plate in Embodiment 1 described above. 4 is a shear bearing washer as a shearing force reinforcing member that is located between the anchor bolt 2 and the anchor bolt 2, and its outer peripheral shape is a sloped surface from one end side to the other end side and has a reduced diameter. 8 is the washer 11 and the base plate 4 in the first embodiment.
Is a shear bearing washer which is positioned between the anchor bolt 2 and the anchor bolt 2 and has the same shape as the shear bearing washer 7, and the other configurations are the same as those of the first embodiment, and therefore, the same portions are denoted by the same reference numerals. The duplicate description is omitted.

According to the second embodiment, since the outer surface area of the shear bearing washer 7 is larger than that of the nut 3, the contact area with concrete is increased and the contact area with the base plate 4 as a steel material is also increased. Large shear rigidity and shear strength are obtained. As a result, it is possible to suppress the positional displacement of the anchor bolt 2 at the time of pouring concrete, and to further prevent the concrete from being broken by the shearing force acting between the anchor bolt 2 and the base plate.

In this case, by sandwiching the base plate 4 between the shear bearing washers 7 and 8, stress is transmitted by friction between the shear bearing washers 7 and 8 and the base plate 4, and this stress F is F = μ × A XW. Here, μ: friction coefficient A: friction area of shear bearing washer 7 W: axial force of anchor bolt 2

Third Embodiment FIG. 3 is an explanatory view of a steel material fixing method for a steel building showing a third embodiment of the present invention. In FIG. 3, 9 is an anchor bolt formed on a base plate 4 as a steel material. Two
It is a shear bearing ring as a lateral deviation prevention member that is press-fitted into a gap between the hole 5 through which it passes and the anchor bolt 2 that passes through it. Since other configurations are the same as those of the second embodiment, the same portions are denoted by the same reference numerals. Will be attached and redundant description will be omitted.

As shown in FIG. 4, the shear bearing ring 9 can be easily press-fitted by reducing the diameter of the outer peripheral shape from the one end side to the other end side with a slope. Further, if a cutting blade 9a is provided on the outer peripheral surface of the steel material, the cutting blade 9a penetrating while shaving the hole wall surface of the steel material.

In this case, as shown in FIGS. 5 and 6, if a tooth-shaped or rib-shaped projection having a groove portion into which a cutting piece generated when entering while scraping is provided is provided, the penetration can be facilitated while scraping. You can If this tooth profile is a chevron, it will be easier to cut, and the tooth profile will be in the lateral direction for each row (Fig. 5).
Alternatively, the shear bearing ring 9 can easily enter by shifting the vertical direction (FIG. 6) by a small amount t. Several types of shear bearing rings 9 are prepared in advance, and when the steel hole 5 and the anchor bolt 2 are misaligned as shown in FIGS. 7A and 7B, a size close to the extent of misalignment is selected. To use.

FIG. 8 shows a modification of FIG. 7, and in this case, as a method for filling the gap between the bolt hole 5 and the bolt 2, it is achieved by combining two large and small rings with different eccentric diameters. That is, when the bolt 2 is eccentric to the left with respect to the bolt hole 5 as shown in FIG.
The large-diameter ring 9b that is eccentric to the left side of FIG.
By combining with the eccentric small diameter ring of (c), it is possible to eliminate the gap at any bolt 2 position.

According to the third embodiment, the shear bearing ring 9 is press-fitted into the gap between the anchor bolt 2 and the hole wall, which is inserted into the bolt hole 5 of the base plate 4, so that the lateral displacement between the two can be eliminated. In combination with the increase in the contact area between the base plate 4 and concrete,
Greater shear stiffness and strength are obtained. As a result,
The displacement of the anchor bolt 2 at the time of placing concrete can be suppressed, and the concrete can be less broken by the shearing force acting between the anchor bolt 2 and the base plate.

Fourth Embodiment FIG. 9 is a front view showing the structure of an anchor bolt 2 used in a steel material fixing method and a fixing device for a steel building according to the present invention. In the first embodiment, the conventionally used anchor bolt made of ordinary steel may be used, but when the shear bearing washer 7 is used as in the second and third embodiments, the threaded portion of the anchor bolt 2 is Must be a high stress bolt. On the other hand, it is desirable that the shaft part of the anchor bolt installed in the concrete foundation is a deformed reinforcing bar in order to strengthen the adhesive force of the concrete.

In this case, when the deformed bar is threaded, there are ribs and nodes, the cores do not match, and the threading is difficult. In addition, it is costly to use a high stress bolt whose entire length is threaded. Then, the end faces of the deformed rebar 2b as the anchor part and the high stress bolt 2c as the screw part are brought into contact with each other, and the abutting part 2d is made to have strength equivalent to that of the deformed rebar 2a by means such as welding or adhesion. Integrated,
The anchor bolt 2 is configured.

By using this anchor bolt 2, the effect of the deformed bar 2b is obtained in contact with concrete, and the shearing force applied to the base plate is transmitted to the washer by the friction between the base plate and the washer, Through to the concrete foundation. Therefore, the bolt will fulfill its function if the tightening force for the steel material is strengthened, and the effect of the high stress bolt 2c can be applied to the tightening and fixing of the base plate 4, and this kind of metal member can be applied to concrete. It is extremely effective as a fixing method and fixing device.

FIG. 10 shows the experimental results of the steel material fixing method of the first to third embodiments and the conventional steel material fixing method, and the curve A is the experimental result of the first embodiment and the load 17 (t ), The concrete is broken, and the curve B is the experimental result of the second embodiment. The base plate 4 slides sideways with a load of 20.5 (t), and a load larger than that starts to be applied to the concrete, and a load of 34.5 (t). Concrete breaks, curve C is the experimental result of the third embodiment, and load 34
Concrete is destroyed at (t), and curve D is an experimental result of the conventional steel material fixing method, and concrete is destroyed at a load of 11.2 (t) lower than that of each embodiment of the present invention. As is clear from the experimental results, in each of the embodiments of the present invention, since the shear bolt reinforcing member is attached to the anchor bolt 2 to increase the contact area with the concrete, a large shear rigidity and shear strength can be obtained. , There is less destruction of concrete.

In each of the above-described embodiments, the drawings show only the case of the base plate of the steel frame building in which the anchor bolts are installed in the vertical direction. However, the present invention shows that the anchor bolts are transverse to the concrete surface in the vertical direction. Needless to say, this also includes the case of steel plates installed in the direction. Furthermore, in each of the above-described embodiments, the steel material such as the base plate of the steel building was described, but what is fixed to the concrete is not limited to the steel material, and may be a metal member containing aluminum. .

Fifth Embodiment FIG. 11 shows a specific embodiment of the shear bearing ring shown in FIG. 7 (b) for press-fitting into the gap between the hole of the base plate 4 and the anchor bolt 2 to prevent lateral displacement. The shear bearing ring 10 is formed by cutting out a part of a cylinder 10a in parallel with the axis to have a C-shaped cross section, and the thicknesses of the C-shaped both side edges 10b, 10c are successively thinned toward the opening end. Is. The shear bearing ring 10 is formed by mechanical working such as plastic working or cutting, or by press-molding metal powder into a predetermined shape in a mold. The opening end parallel to the axis has a proper thickness. It's good and very easy to create.

FIG. 12 shows the shear bearing ring 9 shown in FIG. 8 and the shear bearing ring 10 of this embodiment.
It is a contrast view of the use state with. When the shear bearing ring 9 is used for the anchor bolt 2 having the eccentricity e, the anchor bolt insertion hole of the base plate 4 requires a hole diameter D as shown in FIG. In the shear bearing ring 10 of FIG.
As shown in FIG. 5, the anchor bolt insertion hole of the base plate 4 is sufficient with the hole diameter d. Therefore, the hole diameter provided in the base plate 4 can be made smaller by D−d = α when the shear bearing ring 10 according to the present embodiment is used, and the strength reduction of the base plate 4 can be prevented accordingly.

As a result, the base plate 4 need only have an appropriate thickness. In addition, if the hole diameter of the base plate 4 is small, the shear bearing washer with a small diameter and thin suffices. Therefore, the concrete foundation does not have to be large, and the entire structure can be made compact.

On the other hand, when the anchor bolt 2 is not eccentric, when the shear bearing ring is press-fitted into the gap between the anchor bolt 2 and the hole of the base plate 4, as shown in FIG. The shear bearing rings 101 and 102 may be used by combining them in a cylindrical shape.

[0040]

As described above, according to the present invention, since the shearing force reinforcing member is attached to the anchor bolt and installed in the concrete, a large shearing rigidity and shearing strength can be obtained, and the anchoring bolt can be used during concrete pouring. Even if the bolts are displaced, the bolt holes in the metal member such as the base plate can be made larger, and it is not necessary to correct the positions of the anchor bolts after placing concrete. Therefore, it is not necessary to use an expensive anchor frame, and the metal member can be fixed to the concrete easily at low cost and quickly. Moreover, there is an effect that a fixing method and a fixing device can be obtained in which shearing force is generated between the metal member and the metal member after fixing the metal member and concrete destruction is less likely to occur even if a load is applied to the anchor bolt.

Further, since the lateral deviation preventing member is press-fitted in the gap between the hole of the metal member and the anchor bolt passed through the hole, lateral deviation of the metallic member can be prevented and, in addition, the shear force reinforcing member can be prevented. Thus, there is an effect that a fixing method and a fixing device capable of further improving the shear rigidity and the shear strength can be obtained.

Further, since the above-mentioned anchor bolt is constructed by integrally forming the deformed rebar as the anchor part and the high stress bolt as the screw part with the same strength as the strength of the deformed rebar, the fixing method and the fixing device of the present invention are provided. There is an effect that a suitable anchor bolt can be obtained at low cost.

Further, a shear bearing ring for preventing lateral displacement of the metal member has a C-shaped cross section by cutting a part of the cylinder in parallel with the axis, and the thickness of both sides of the C-shape is taken as the opening end. Since the structure is made thinner successively, the bolt holes of the metal member can be made to have an appropriate size, and the strength of the metal member can be prevented from lowering. Further, there is an effect that the strength of the metal member can be prevented from being lowered, and that the metal member can be easily produced at low cost.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a steel material fixing method for a steel frame building showing Embodiment 1 of the present invention.

FIG. 2 is an explanatory diagram of a steel material fixing method for a steel frame building showing Embodiment 2 of the present invention.

FIG. 3 is an explanatory diagram of a steel material fixing method for a steel frame building showing Embodiment 3 of the present invention.

FIG. 4 is an explanatory diagram of a press-fitting process of the shear bearing ring.

FIG. 5 is a front view of the shear bearing ring.

FIG. 6 is a front view of the shear bearing ring.

FIG. 7 is an explanatory diagram showing a press-fitted state of a shear bearing ring.

FIG. 8 is an explanatory diagram of a case where two eccentric rings having different diameters are combined and press-fitted into a gap between bolt holes.

FIG. 9 is a front view showing a configuration of an anchor bolt.

FIG. 10 is a graph showing the experimental results by the steel material fixing method according to each embodiment of the present invention and the conventional steel material fixing method.

FIG. 11 is a perspective view showing another embodiment of the shear bearing ring.

FIG. 12 is an explanatory diagram showing a usage state of two types of shear bearing rings.

FIG. 13 is an explanatory view showing a combined use state of two shear bearing rings having different diameters.

FIG. 14 is an explanatory diagram of a conventional steel material fixing method for a steel frame building.

FIG. 15 is an explanatory diagram of a table repair.

FIG. 16 is a perspective view of an anchor frame for placing concrete.

[Explanation of symbols]

 1 Concrete Foundation 2 Anchor Bolt 2a Screw Part 2b Deformed Bar 2c High Stress Bolt 3 Nut (Shear Force Reinforcement Member) 4 Base Plate (Metal Member) 5 Hole 6 Tightening Nut 7 Shear Bearing Washer (Shear Force Reinforcement Member) 9 Shear Bearing Ring ( Side slip prevention member) 10,11 Washer

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Suomi Ogata 1413-2 Kamiyaki, Matsudo-shi, Chiba Prefecture (72) Inventor Eiji Suzuki 9 (72) Inventor, 129 Komagaki, Nagareyama City, Chiba Prefecture Shoichi Takahashi Tokyo 2-6-2 Otemachi, Chiyoda-ku Tokogyo Co., Ltd. (72) Inventor Masayuki Kato 1-33-1 Takadanobaba, Shinjuku-ku, Tokyo Masayuki Kato Building Research Institute, Inc.

Claims (15)

[Claims] 1. A step of installing an anchor bolt, to which a shearing force reinforcing member is assembled, in concrete such that one end surface of the shearing force reinforcing member is substantially flush with the concrete surface,
Attaching a metal member to the surface of the concrete foundation by passing the anchor bolt through a hole provided in the metal member, and screwing a nut to the threaded portion of the anchor bolt that penetrates the hole of the metal member, and the nut and the shearing force. A method of fixing a metal member to concrete, comprising a step of sandwiching and fixing the metal member with a reinforcing member. 2. A step of installing an anchor bolt, to which a shearing force reinforcing member is assembled, in concrete such that one end surface of the shearing force reinforcing member is substantially flush with the concrete surface.
Attaching a metal member to the surface of the concrete through the anchor bolt through a hole provided in the metal member;
A step of press-fitting a lateral shift prevention member into a gap between the anchor bolt penetrating the hole of the metal member and the hole; and a nut screwed to the threaded portion of the anchor bolt penetrating the hole of the metal member, And a step of sandwiching and fixing the metal member between the shearing force reinforcing member and the shearing force reinforcing member. 3. The method for fixing a metal member to concrete according to claim 2, wherein an outer peripheral shape of the lateral deviation prevention member is a sloped surface from one end side to the other end side and has a reduced diameter. 4. The method for fixing a metal member to concrete according to claim 2, wherein the lateral deviation prevention member includes a cutting blade that penetrates while shaving a hole wall surface of the metal member. 5. The metal member according to claim 4, wherein the lateral deviation prevention member includes a tooth-shaped or rib-shaped projection having a groove portion into which a cutting piece carved by the cutting blade is inserted. Fixing method. 6. The lateral shift prevention member is one or two eccentric rings having different diameters.
A method for fixing the described metal member to concrete. 7. An anchor bolt installed in concrete such that one end surface of the assembled shearing force reinforcing member is substantially flush with the concrete surface, and the anchor bolt is passed through a hole formed in a steel material, It is composed of a metal member attached to a concrete surface, and a nut that is screwed into a threaded portion of an anchor bolt penetrating a hole of the metal member to sandwich and fix the metal member between the shearing force reinforcing member. An apparatus for fixing a metal member to concrete, which is characterized in that 8. An anchor bolt installed on concrete such that one end surface of the assembled shearing force reinforcing member is substantially flush with the concrete surface, and the anchor bolt is attached to the surface of the concrete through a hole. The metal member, an anchor bolt penetrating the hole of the metal member, and a lateral slip prevention member press-fitted into a gap between the hole, and the threaded portion of the anchor bolt penetrating the hole of the metal member. A fixing device for a metal member to concrete, comprising a nut for sandwiching and fixing the metal member between the force reinforcing member and the force reinforcing member. 9. The fixing device for a metal member to concrete according to claim 8, wherein an outer peripheral shape of the lateral deviation prevention member is a sloped surface from the one end side to the other end side and has a reduced diameter. 10. The fixing device for fixing a metal member to concrete according to claim 8, wherein the lateral deviation prevention member includes a cutting blade that penetrates while shaving a hole wall surface of the base plate. 11. The metal member according to claim 10, wherein a tooth shape or a rib-shaped projection having a groove portion into which a cutting piece cut by the cutting blade is inserted is provided on an outer peripheral surface of the lateral deviation prevention member. Fixing device for concrete. 12. The lateral deviation prevention member is one or two eccentric rings having different diameters.
A device for fixing the described metal member to concrete. 13. The fixing device for a metal member to concrete according to claim 7, wherein the metal member is a base plate or a steel plate of a steel frame building. 14. An anchor bolt used for fixing a metal member to concrete, characterized in that a deformed reinforcing bar as an anchor part and a high stress bolt as a screw part are integrated. 15. A metal, characterized in that a part of a cylinder is cut away in parallel with an axis to have a C-shaped cross section, and the thickness of both sides of the C-shape is successively reduced toward the opening end. Shear bearing ring used for fixing members to concrete.