KR102024476B1 - Method for manufacturing anchor bolt carrying out and an anchor bolt - Google Patents

Abstract

The present invention relates to a construction method for an anchor bolt and an anchor bolt and, more specifically, to a bolt separation type anchor bolt capable of simply performing the work of placing concrete by fixing a bolt by an adhesive after the concrete is placed while the bolt connected to the upper part of a metal support rod embedded in the concrete is separated. According to the present invention, the anchor bolt (10) fixes a steel frame structure (4) by being embedded in a concrete foundation (1). The anchor bolt (10) comprises: the metal support rod (11) embedded in the concrete foundation (1) and having a bent hanging unit (11b) in the lower part; and the bolt (12) and a closure (13), inserted into a connection hole (11a) vertically bored in the upper part of the metal support rod (11). The closure (13) is connected to the connection hole (11a) when the concrete is poured. After the concrete is poured, the bolt (12) is inserted into the connection hole (11a) separated from the closure (13). Also, the bolt (12) inserted into the connection hole (11a) is fixed by the adhesive (20).

Description

Construction method of anchor bolt and anchor bolt {Method for manufacturing anchor bolt carrying out and an anchor bolt}

The present invention relates to an anchor bolt (anchor bolt) construction method and anchor bolt, and more specifically, after the concrete is poured in the state of separating the bolt coupled to the upper part of the metal support rod embedded in the concrete bolt By allowing the adhesive to be fixed by the adhesive, it relates to a bolt-type anchor bolt that is configured to be made very easy to cast concrete.

In general, anchor bolts are embedded in the foundation of concrete to fix steel structures such as telegraph poles, bridge railings, and soundproof walls. Mostly anchor bolts are embedded in the base of concrete and bolted to the upper part of the steel frame structure. Is fixed by a nut.

The anchor bolt is welded and fixed to the reinforcing bar coupled in the form of the inside of the formwork, the bolt portion has a structure that only the bolt protrudes over the concrete structure when the concrete is placed in the formwork in the state protruded to the upper formwork.

However, in the case of a small structure such as a concrete structure for fixing the telephone pole, the anchor bolt can be protruded by injecting concrete into the formwork by hand, but concrete structures such as railings or soundproof walls formed long along the road automatically Significant problems arose due to the bolts protruding into the formwork as they were cast.

In other words, the concrete structure that is formed along the road is to be placed in the formwork while moving by using the automatic pourer installed in the vehicle, the concrete injection hole to the top of the formwork to inject the correct amount of concrete into the formwork. Only the closest can prevent the end of the concrete from overflowing the formwork, so that the correct amount can be injected.However, if the anchor bolt protrudes to the top of the formwork, the concrete nozzle cannot close the top of the formwork. Closures such as overflowing were generated, and the work efficiency was significantly reduced.

Recently, in view of the above-mentioned problems, after the concrete is poured and cured, a method of drilling holes using an air hammer drill and inserting anchor bolts and fixing them with an adhesive is used. Due to the cumbersome work process of inserting anchor bolts, the efficiency of work could not be increased.

As a conventional technology for anchor bolts, there is a registered patent No. 10-0684707 (February 13, 2007), the prior art also has the above problems as it is.

The present invention has been made in view of the above-described problems, the object of which is to be able to fix the bolt with an adhesive after pouring concrete in a state in which the bolt is coupled to the upper portion of the metal support rod embedded in concrete By doing so, it is to provide a bolt-type anchor bolt configured so that the concrete can be placed very easily.

A feature of the present invention for achieving the above object is, embedded in the concrete foundation (1) to bury the anchor bolt 10 for fixing the steel structure (4), embedded in the concrete foundation (1), the lower part It includes a metal support rod (11) formed with a bent engaging portion (11b); Consists of a bolt 12 and a stopper 13 inserted into the coupling hole (11a) vertically drilled from the upper portion of the metal support rod 11, when the concrete is poured into the coupling hole (11a) of the metal support rod (11) The stopper 13 is coupled to, and after pouring concrete, the stopper 13 is achieved by the anchor bolt, characterized in that the bolt 12 is inserted into the coupling hole (11a) is separated and fixed with an adhesive (20). It can be.

The present invention, while fixing the metal support rod in the state of the bolt detached to the internal reinforcing bar of the formwork to fix the support rod does not protrude to the top of the formwork, and after coupling the rubber stopper to the upper coupling hole of the support rod to move the concrete pourer mounted on the vehicle While the concrete injection hole can be poured by pouring concrete into the form as close as possible to the upper part of the formwork, it is possible to effectively prevent the closed end such as the concrete overflowing out of the formwork and to always inject the correct amount of concrete into the formwork. In addition, it is possible to maximize the efficiency of concrete pouring work, and when the concrete is finished, it is necessary to remove the rubber stopper attached to the joining hole of the metal support rod and insert the bolt to fix it with adhesive. Is done quickly and easily. Various problems of the related art are completely solved, so that the external competitiveness of the anchor bolt can be maximized.

1 is an exploded perspective view illustrating an embodiment of the present invention.
Figure 2 is a perspective view illustrating a state in which the bolt is coupled to the metal support rod according to the present invention.
Figure 3 is a perspective view illustrating a state in which the rubber stopper is coupled to the metal support rod according to the present invention.
4 is a partial cross-sectional view illustrating a state in which the metal structure is coupled to the anchor bolt according to the present invention.
5a to 5e are sectional views sequentially illustrating a process in which the anchor bolt according to the present invention is installed on a concrete foundation.
6A to 6C are cross-sectional views sequentially illustrating a process in which a glass tube in which an adhesive is injected is inserted into an upper coupling hole of a metal support rod according to the present invention and then bolts are fixed.

Hereinafter, described in detail by the accompanying drawings a preferred embodiment for achieving the above object is as follows.

1 to 4, the anchor bolt 10 is embedded in the concrete foundation 1, and the anchor bolt 10 penetrates the holes drilled in the frame 4a of the steel structure 4. It is firmly fixed by the nut 12a which is inserted and screwed in.

However, the configuration of the above-described anchor bolt is a known technical idea known. However, the most important feature in the configuration of the present invention is that the bolt 12 is inserted into the upper coupling hole (11a) of the metal support rod 11 is fixed with an adhesive 20 to configure the anchor bolt 10 in a separate type. .

That is, the metal support rod 11 is embedded in the concrete foundation 1, the lower portion of the support rod 11 "L" shaped engaging portion 11b is formed bent to the metal support rod 11 is the concrete foundation (1) ) So that it does not escape from

Of course, the bar 11b is shown in the form bent in the form of "L" in the lower portion of the metal support rod 11, but in some cases the hooking portion (11b) in the "U" shape or other polygons It may be formed.

A coupling hole 11a is vertically drilled in an upper portion of the metal support rod 11, and the coupling hole 11a is configured such that a bolt 12 may be screwed or a rubber stopper 13 may be fitted thereto. The anchor bolt 10 according to the present invention is a metal support rod 11, the bolt 12 and the rubber stopper 13 forms a set.

The outer diameter of the bolt 12 is formed smaller than the inner diameter of the coupling hole (11a) is to be fixed by injecting the adhesive 20 in these gaps.

The adhesive 20 is a strong adhesive force, it is preferable to use a polymer synthetic resin such as epoxy resin or polyester resin that is cured within a quick time, and the liquid adhesive 20 mainly by injection gun (gun) Is injected into the inside of the coupling hole 11a, and then the bolt 12 is inserted into the bolt 12 and the metal support rod 11 when the adhesive 20 is cured in the gap between the bolt 12 and the coupling hole 11a. It is firmly fixed to the top of the).

In some cases, unsaturated polyester resin (21a) and silica sand (21b) are injected into the glass tube (21), and the curing accelerator (22a) is injected into the inner container (22) inside the glass tube (21). The adhesive ampoule is inserted into the coupling hole 11a of the metal support rod 11, and then hits the glass tube 21 with the bolt 12 to destroy the glass tube 21 and the quick container 22 while The curing accelerator 22a injected into the 22 is mixed with the polyester resin 21a and the silica sand 21b at one time and starts to harden rapidly. After about 10 minutes, the bolt 12 is inside the coupling hole 11a. It can also be used so that it is firmly fixed at.

At this time, the unsaturated polyester resin 21a solidifies rapidly by the curing accelerator 22a to generate strong adhesive force and cohesive force to fix the bolt 12, and to destroy the glass tube 21 and the quick container 22. The generated glass fragments and silica sand 21b serve to increase the adhesive strength by acting as aggregates as a base material.

The adhesive 20 is a mixture of silica sand, a polyester resin, a curing accelerator, and the curing accelerator 22a injected into the inner container 22 is a benzoyl peroxide, calcined gypsum, calcium carbonate, magnesium carbonate, which is a curing agent. And a mixture of strontium carbonate.

Among the components of the curing accelerator 22a, calcined gypsum gives stability to benzoyl peroxide, which is a curing agent, calcium carbonate disperses to increase diffusion rate, strontium carbonate enhances durability, and magnesium carbonate promotes curing. Plays the role of.

The interaction between the components of the curing accelerator 22a can cure the polyester resin 21a in about 10 minutes, and since the adhesive components of such a structure are widely used as construction adhesives and the like, the detailed description is omitted.

Hereinafter, the method of constructing the anchor bolt 10 according to the present invention on the concrete foundation 1 is as follows.

Installing the formwork (2) for the concrete foundation, the step of binding and installing the reinforcing bar (3) to form a lattice in the form of the inside of the formwork (2), metal support rods bent to the "L" shape (11) The upper end of the support rod 11 is maintained at the same height as the upper portion of the formwork 2 while welding them to the reinforcing bar 3, the stopper of the rubber material in the upper coupling hole (11a) of the metal support rod (11) 13) combining, pouring concrete into the formwork (2) in the state in which the injection port (5) as close as possible to the upper portion of the formwork (2) while moving using the concrete pourer installed in the vehicle, formwork (2) When the casting of the concrete is completed inside, separating the rubber stopper (13) coupled to the coupling hole (11a) of the metal support rod (11), the stopper (13) with a polymer synthetic resin inside the coupling hole (11a) separated Injecting the adhesive 20, and the adhesive 20 is injected After the bolt 12 is inserted into the coupling hole 11a, the adhesive bolt 20 is cured so that the bolt 12 is fixed to the upper coupling hole 11a of the metal support rod 11. 10) is to be achieved by the construction method of the anchor bolt, characterized in that the installation to be completed on the concrete foundation (1).

If described in detail by the accompanying drawings a preferred embodiment by the above-described anchor bolt construction method as follows.

When constructing a concrete foundation 1 such as a railing or a soundproof wall of a bridge that is formed along a road, as shown in FIG. 5A, after the formwork 2 is formed of a housing so that the concrete can be trapped, the formwork Inside (2), reinforcing bars (3) were formed to bind together to form a lattice in the vertical and horizontal direction.

Subsequently, as shown in FIG. 5B, the upper portions of the supporting rods 11 are maintained at the same height as the upper portion of the formwork 2 while welding and fixing the metal supporting rods 11 bent to the “L” shape to the reinforcing bars 3. It was.

Subsequently, as illustrated in FIG. 5C, a foreign material such as concrete or dust is introduced into the coupling hole 11a by coupling the stopper 13 made of rubber material to the coupling hole 11a formed at the upper portion of the metal support rod 11. Not to.

Subsequently, when concrete was poured into the formwork 2 while the sprayer 5 was moved as close as possible to the upper portion of the formwork 2 while moving the concrete placing machine installed in the vehicle, the concrete was prevented from being closed out of the formwork. A large amount of concrete could be poured by pouring it into the formwork (2).

Subsequently, after completing the casting of concrete in the formwork, as shown in FIG. 5D, the rubber stopper 13 coupled to the coupling hole 11a of the metal support rod 11 is separated and then an adhesive ( 20) was injected.

Of course, the adhesive 20 is an ampoule-type adhesive 20 into which the unsaturated polyester resin 21a, the silica sand 21b, and the curing accelerator 22a are injected into the glass tube 21 of the coupling hole 11a. It can also be inserted inside.

Subsequently, as shown in FIG. 5E, the bolt 12 is inserted into the coupling hole 11a into which the adhesive 20 is injected, so that the adhesive 20 is cured, and the bolt 12 is inside the coupling hole 11a. It was firmly fixed by the adhesive 20 solidified at.

Therefore, the bolt 12 is adhesively fixed to the upper coupling hole (11a) of the support rod 11 was able to easily install the anchor bolt 10 on the concrete foundation (1).

On the other hand, in the present invention, the bolt 12 is particularly concerned with the problem that the portion exposed to the outside of the coupling hole (11a) of the metal support rod 11, such as corrosion due to rain, invasion, or broken by scratches, impacts, etc. In particular, in view of the fact that the anchor bolt according to the present invention is exposed to the outdoor environment for a long time during the construction of the anchor bolt, the solution to the problem is more urgent.

In a further embodiment of the present invention for this purpose, the present invention is characterized in that the protective film may be provided by the application and curing of the protective agent on the outer surface of the bolt (12).

Such a protective film should be easily provided, have excellent adhesion, and further have improved antiseptic, fire resistance, and rust resistance, and in addition, it is necessary to have improved manufacturability due to rapid curing and improved water resistance through water repellent treatment. .

The protective agent composition for the protective film of the present invention to provide the above effect is 100 parts by weight of phenoxyethyl acrylate, 150 to 250 parts by weight of polyester acrylate, 30 to 40 parts by weight of 2,4,6-trimethylbenzoyldiphenylphosphine oxide Parts, 50 to 100 parts by weight of polyvinylacetate, 1 to 5 parts by weight of 2-methyl-4-isothiazolin-3-one, 25 to 35 parts by weight of silica aerogel, and 10 to 3-glycidoxypropylmethyldimethoxysilane 25 parts by weight, sodium silicate 30-50 parts by weight, hydroxyethyl acrylate 10-70 parts by weight, ethyl silicate 30-60 parts by weight, ethylenediamine tetraacetate 1-5 parts by weight, tetraethoxysilane 0.5-2.5 parts by weight Contains wealth.

For each composition, first, (Phenoxyethylacrylate) phenoxyethylacrylate was used as an acrylate monomer, and it was confirmed that it was most suitable for the present composition among various acrylate monomers because it had proper flowability and excellent heat resistance properties. The amount of each composition to be described later will be described based on 100 parts by weight of this phenoxyethyl acrylate.

Next, (Polyesteracrylate) polyester acrylate is used as an acrylate oligomer, and has been found to be most suitable for the present composition among various acrylate oligomers because it has appropriate adhesion, strength and durability. It is preferable that 150 to 250 parts by weight of the polyester acrylate is used, but when used outside the numerical range, it was confirmed that the adhesion, strength and durability of the protective film are significantly reduced. As a result of repeated experiments, the most preferable amount was found to be 200 parts by weight.

Next, (2,4,6-Trimethylbenzoyldiphenylphosphineoxide) 2,4,6-trimethylbenzoyldiphenylphosphine oxide is used as an initiator, and when used with the phenoxyethyl acrylate and polyester acrylate described above among various initiators It was confirmed that the best physical properties can be secured. Such 2,4,6-trimethylbenzoyldiphenylphosphine oxide is preferably used 30 to 40 parts by weight, when used less than 30 parts by weight is difficult to form a sufficient radical, when used in excess of 40 parts by weight This remarkably lowered, and noticeable drop in physical properties was observed especially when used outside the composition range in curing time and flowability. As a result of repeated experiments, the most preferable amount was found to be 35 parts by weight.

Next, (Polyvinylacetate) polyvinylacetate is used as a fixing agent to improve the fixing strength of the protective agent, the amount is preferably 50 to 100 parts by weight. For example, when used in less than 50 parts by weight, there is a problem that the protective agent is not well fixed due to the decrease in flexibility of the coating film, there is a problem that the dryness of the protective agent is lowered when used in excess of 100 parts by weight. As a result of repeated experiments, the optimum amount of use was found to be 70 parts by weight.

Next, (2-Methyl-4-Isothiazoline-3-one) 2-methyl-4-isothiazolin-3-one is used as a preservative, and the usage amount is preferably 1 to 5 parts by weight. When it is used out of the composition range, no obvious problem appeared, but the repeated experiments showed the most significant effect in the composition range.

Next, (Silica Aerogel) silica aerogel is a composition that serves to enhance the fire resistance and heat insulation based on the diffused pores, it is used as a fire-retardant and heat insulation. This silica airgel is a material with a large specific surface area having a porosity of 80 to 99.87% and a pore size of 1 to 50 nm. It is a transparent ultra low density material, and has high light transmittance and low thermal conductivity. Have When the silica airgel absorbs moisture, the gel structural properties and physical properties are lowered, so that the surface is preferably hydrophobized, and the amount thereof is preferably 25 to 35 parts by weight. When used out of the composition range there is a problem that can not secure the optimum physical properties, especially when used in excess of 35 parts by weight causes a problem of economic deterioration. As a result of repeated experiments, it was confirmed that the most preferable amount was 30 parts by weight.

Next, (3-Glycidoxypropylmethyldimethoxysilane) 3-glycidoxypropylmethyldimethoxysilane is used as a coupling agent to improve the physical properties of each composition, especially polymer compositions to improve the physical properties, the amount of the use is 10 to 25 parts by weight desirable. When used outside the composition ratio, the binding force between the compositions is not effectively expressed. As a result of repeated experiments, the most preferable amount was found to be 20 parts by weight.

Next, (Sodiumsilicate) sodium silicate is added as a rust inhibitor, and has the advantage of being relatively economical among various rust inhibitor compositions. The preferred amount of such sodium silicate is 30 to 50 parts by weight, for example, when used less than 30 parts by weight, it is difficult to guarantee the rust prevention ability, when used in excess of 50 parts by weight there is a problem that the economic efficiency is lowered. The optimum amount of use considering both economic efficiency and rust prevention ability is 40 parts by weight.

Next, (Hydroxyethylacrylate) hydroxyethyl acrylate is added as an adhesion promoter, and hydroxyethyl acrylate has been employed in particular because of its excellent curability. The preferred amount of use is 10 to 70 parts by weight, for example, when used less than 10 parts by weight, the adhesion promoting effect is not properly expressed, and when used in excess of 70 parts by weight, there is a problem in that the toxicity is increased and the toxicity is increased. As a result of repeated experiments, it was confirmed that the most preferable amount was 40 parts by weight.

Next, (Ethylsiliconate) ethylsiliconate is added as a strength enhancer to increase the corrosion resistance, impact resistance, scratch resistance (tolerant to scratch / scratch) and surface hardness of the protective film, and the average particle size is 10 to 20 nm. Preferably, the usage-amount is 30-60 weight part. For example, when used in less than 30 parts by weight, sufficient strength cannot be obtained, and when used in excess of 60 parts by weight, the possibility of cracking after construction increases due to excessive rigidity. As a result of repeated experiments, it was confirmed that the most preferable amount was 40 parts by weight.

Next, (Ehtylenediaminetetracetate) ethylenediaminetetraacetate is used as an adsorbent strengthening agent, and enhances the adsorbing power during the initial construction of the protective film, resulting in improved adhesion. The preferred amount of ethylenediaminetetraacetate is 1 to 5 parts by weight, and when used out of the above composition range, the adsorption enhancing effect is not properly expressed.

Next, (Tetraethoxysilane) tetraethoxysilane is hydrolyzed and condensed to add waterproofness and water repellency of the protective film and is added to improve the antiseptic property, and it is preferable that 0.5 to 2.5 parts by weight is used, when used in less than 0.5 parts by weight. Water resistance, water repellency and antiseptic improvement effect is insignificant, when used in excess of 2.5 parts by weight there is a problem that the workability is reduced. As a result of repeated experiments, the most preferable amount was found to be 2 parts by weight.

The protective film of the present invention having the above-mentioned constitution and composition range is not required to limit the drying temperature, and since the curing is performed quickly without flowability, the protective film is easily provided, and further, excellent adhesion and fire resistance and fire resistance are improved. It has the advantage that it is provided with rust prevention property, and also excellent in water resistance.

EXAMPLE

In order to test the effect of the protective composition and the protective film formed thereby according to the present invention, the protective agents (500g) mixed in each of the composition ratios of Examples 1 to 3 were applied to the test block, and then cured by UV curing After the protective film was formed on the outer surface of the block, experiments were conducted according to Experimental Examples 1 to 4 using the respective test blocks.

[Component List]

Experimental Example 1

Examples 1 to 3 As a result of measuring the UV curing time of each test block, Example 1 was measured for about 1 minute, Example 2 for about 1 minute and 30 seconds, and Example 3 for 2 minutes. Therefore, the total curing time of Examples 1 to 3 all belong to a short side, and in particular, all three examples were able to confirm that rapid curing proceeded without flowability.

Experimental Example 2

As a result of performing cross-cut to each test block of Examples 1 to 3, all of Examples 1 to 3 did not peel at all within 1% of an error range (less than 1% of peeling rate).

Subsequently, as a result of scraping through a scratcher having an irregular protrusion on the outer surface of each test block of Examples 1 to 3, most of the protective film was broken, and in Examples 2 and 3, the error range was 5%. The breakage of the protective film did not occur at all (less than 5% of the damage rate).

Therefore, it was confirmed that Examples 2 and 3 are superior to the protective film in the adhesion and strength compared to Example 1.

Experimental Example 3

Examples 1 to 3 Experiments of directly injecting a flame for 10 minutes through a torch on the outer surface of each test block resulted in some combustion and melting in Examples 1 and 2, but some sooting occurred in Example 3. Only the protective film was not burned at all.

Therefore, it was confirmed that Example 3 is excellent in fire resistance and heat insulation compared to Examples 1 and 2.

Experimental Example 4

Examples 1 to 3 After spraying water on the outer surface of each test block for 6 hours, after removing the protective film and inspecting the internal invasiveness of the test block, a small amount of moisture was detected in Examples 1 and 2, Example 3 Moisture was not detected at all.

Therefore, it was confirmed that Example 3 is excellent in water resistance compared to Examples 1 and 2.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described embodiments without departing from the spirit of the present invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such modifications are intended to fall within the scope of the appended claims.

1: concrete foundation 2: formwork
3: rebar 4: steel structure
4a: frame 5: nozzle
10: anchor bolt 11: support rod
11a: coupling hole 11b: locking portion
12: bolt 12a: nut
13: stopper 20: adhesive
21 glass tube 21a polyester resin
21b: silica sand 22: inner container
22a: curing accelerator

Claims (4)

In constructing the anchor bolt 10 is embedded in the concrete foundation (1) to fix the steel structure (4),
A metal support rod 11 embedded in the concrete foundation 1, the lower end of which has a bent hook portion 11b;
A bolt 12 and a stopper 13 inserted into the coupling hole 11a vertically drilled from the upper portion of the metal support rod 11;
When the concrete is poured, the stopper 13 is coupled to the coupling hole 11a of the metal support rod 11, and after the concrete is poured, the bolt 12 is inserted into the coupling hole 11a from which the stopper 13 is separated. Fixed with adhesive 20,
The adhesive 20 is bonded to the unsaturated polyester resin 21a and the silica sand 21b is injected into the glass tube 21, and the curing accelerator 22a is injected into the inner container 22 inside the glass tube 21. Consisting of ampoules,
The adhesive 20 is composed of a mixture of silica sand, polyester resins, curing accelerators,
The curing accelerator 22a injected into the inner container 22 is composed of a mixture of benzoyl peroxide, calcined gypsum, calcium carbonate, magnesium carbonate and strontium carbonate, which are curing agents.
The outer surface of the bolt 12 is provided with a protective film by applying and curing a protective agent,
The protective agent is 100 parts by weight of phenoxyethyl acrylate, 200 parts by weight of polyester acrylate, 35 parts by weight of 2,4,6-trimethylbenzoyldiphenylphosphine oxide, 70 parts by weight of polyvinylacetate, 2-methyl-4 1 to 5 parts by weight of isothiazolin-3-one, 30 parts by weight of silica airgel, 20 parts by weight of 3-glycidoxypropylmethyldimethoxysilane, 40 parts by weight of sodium silicate, 40 parts by weight of hydroxyethyl acrylate, ethyl An anchor bolt comprising 40 parts by weight of silicon, 1 to 5 parts by weight of ethylenediaminetetraacetate, and 2 parts by weight of tetraethoxysilane.
delete delete In the construction method of the anchor bolt according to claim 1,
Installing the formwork 2 for the concrete foundation, and binding and installing the reinforcing bars 3 to form a lattice in the cross-section inside the formwork 2;
Welding the metal supporting rods 11 bent to the "L" shape to the reinforcing bars 3 and fixing the upper ends of the supporting rods 11 at the same height as the upper portion of the formwork 2;
Coupling a stopper (13) of rubber material to the upper coupling hole (11a) of the metal support bar (11);
Placing concrete into the formwork 2 in a state in which the injection hole 5 is as close as possible to the upper portion of the formwork 2 while moving using the concrete placing apparatus installed in the vehicle;
Separating the rubber stopper 13 coupled to the coupling hole 11a of the metal support rod 11 when the casting of the concrete is completed in the formwork 2;
Injecting the adhesive 20 made of a polymer synthetic resin into the coupling hole 11a in which the stopper 13 is separated;
The bolt 12 is inserted into the coupling hole 11a into which the adhesive 20 is injected, and then the adhesive 20 is cured so that the bolt 12 is fixed to the upper coupling hole 11a of the metal support rod 11. step;
Anchor bolt (10) by the installation method of the anchor bolt, characterized in that the installation to be completed on the concrete foundation (1).

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