JP6633311B2 - Reinforcement method of concrete structure - Google Patents

Reinforcement method of concrete structure Download PDF

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JP6633311B2
JP6633311B2 JP2015143010A JP2015143010A JP6633311B2 JP 6633311 B2 JP6633311 B2 JP 6633311B2 JP 2015143010 A JP2015143010 A JP 2015143010A JP 2015143010 A JP2015143010 A JP 2015143010A JP 6633311 B2 JP6633311 B2 JP 6633311B2
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reinforcing
insertion hole
rebars
concrete structure
rebar
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JP2017025514A (en
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平野 勝識
勝識 平野
笹谷 輝勝
輝勝 笹谷
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Fujita Corp
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本発明は、一つの鉄筋挿入用孔に複数の鉄筋を挿入してコンクリート構造体を補強する工法に関する。   The present invention relates to a method for reinforcing a concrete structure by inserting a plurality of rebars into one rebar insertion hole.

鉄筋を用いて既存のコンクリート構造体、例えば、コンクリート製の柱、壁、杭などを補強する場合、設計時に、鉄筋の外径と、鉄筋挿入箇所の個数が決定される。
この場合、設計された鉄筋の外径が大きい場合、その都度、大きい外径の鉄筋を手配するのでは、工期の短縮化を図り、また、コストの削減化を図る上で不利となる。
そこで、予め均一の外径の鉄筋を多数用意しておき、それら鉄筋を束ねた束ね鉄筋として使用できれば、大きい外径の鉄筋をその都度手配する必要がなくなる。
特許文献1には、複数本の鉄筋が、スパイラル鉄筋で巻回されて構成された束ね鉄筋が提案されている。
When reinforcing an existing concrete structure, for example, a concrete column, wall, pile, or the like using a reinforcing bar, the outer diameter of the reinforcing bar and the number of reinforcing bar insertion points are determined at the time of design.
In this case, if the designed outside diameter of the reinforcing bar is large, arranging a reinforcing bar having a large outside diameter each time is disadvantageous in shortening the construction period and reducing costs.
Therefore, if a large number of rebars having a uniform outer diameter are prepared in advance and the rebars can be used as a bundled rebar, it is not necessary to arrange a rebar having a larger outer diameter each time.
Patent Document 1 proposes a bundled reinforcing bar in which a plurality of reinforcing bars are wound around a spiral reinforcing bar.

特開平7−150630号公報JP-A-7-150630

しかしながらこのような束ね鉄筋は、複数本の鉄筋が、スパイラル鉄筋で締め付けられ、鉄筋相互の外周面が接触しているため、複数本の鉄筋の内側にコンクリートが行き渡り難い。したがって、設計された鉄筋の外径が大きく、用いる鉄筋の数が4本、5本、6本と増えるにつれ、各鉄筋の相互の隙間にコンクリートが行き渡り難いことから、定着長を確保する上で不利となる。
本発明は、上記のような課題を解決するためになされたもので、本発明は、一つの鉄筋挿入用孔に複数の鉄筋を挿入して既存のコンクリート構造体を補強する場合に、定着長を確保する上で有利なコンクリート構造体の補強工法を提供することを目的とする。
However, in such a bundled reinforcing bar, since a plurality of reinforcing bars are fastened with a spiral reinforcing bar and the outer peripheral surfaces of the reinforcing bars are in contact with each other, it is difficult for concrete to spread inside the plurality of reinforcing bars. Therefore, as the outer diameter of the designed rebar is large and the number of rebars to be used increases to four, five, and six, it is difficult for concrete to reach the gaps between the rebars. Disadvantageous.
The present invention has been made in order to solve the above-described problems, and the present invention has a fixing length when a plurality of reinforcing bars are inserted into one reinforcing-bar insertion hole to reinforce an existing concrete structure. It is an object of the present invention to provide a method of reinforcing a concrete structure that is advantageous in securing the concrete structure.

上記目的を達成するために、請求項1記載の発明は、コンクリート構造体の補強工法であって、前記コンクリート構造体に鉄筋挿入用孔を形成し、前記鉄筋挿入用孔に同一の外径の複数本の鉄筋を挿入し、前記複数本の鉄筋を、前記鉄筋挿入用孔内でそれらの外周面を離間させて配置し、前記鉄筋挿入用孔にコンクリートよりも大きい引張強度を有する接着剤を充填し硬化させるに際して、前記鉄筋の外径に対応した大きさの網目を有し前記鉄筋挿入用孔に挿入可能な外径の金網を複数用意し、前記複数本の鉄筋の長手方向両端に前記金網をそれぞれ配置し、それら鉄筋の両端を前記金網の網目に挿入し、前記複数本の鉄筋を、それらの外周面の相互を離間させた状態に位置関係を定めて一体化させておき、前記金網により位置関係が定められ一体化された前記複数本の鉄筋を前記金網と共に前記鉄筋挿入用孔に挿入するようにしたことを特徴とする。
請求項記載の発明は、前記鉄筋挿入用孔に鋼管を挿入し、前記鉄筋挿入用孔への前記複数本の鉄筋の挿入は、前記複数本の鉄筋を前記鋼管に挿入することで行ない、前記接着剤は、前記鋼管の内側と外側の双方に充填することを特徴とする。
請求項記載の発明は、前記鋼管には、その外周面と内周面とを貫通する複数の孔が形成されていることを特徴とする。
請求項記載の発明は、前記コンクリートよりも大きい引張強度を有する接着剤は、エポキシ樹脂系接着剤であることを特徴とする。
In order to achieve the above object, the invention according to claim 1 is a method for reinforcing a concrete structure, wherein a hole for inserting a reinforcing bar is formed in the concrete structure, and a hole having the same outer diameter as the hole for inserting a reinforcing bar is provided. Insert a plurality of rebars, arrange the plurality of rebars with their outer peripheral surfaces spaced apart in the rebar insertion hole, and apply an adhesive having a tensile strength greater than concrete to the rebar insertion hole. filled Runisaishite cured the wire mesh can be inserted an outer diameter to the reinforcing bar insertion hole has a mesh size corresponding to the outer diameter of the reinforcing bar preparing a plurality in the longitudinal ends of said plurality of reinforcing bars Arrange the wire mesh, insert both ends of the rebar into the mesh of the wire mesh, and integrate the plurality of rebars by defining their positional relationship in a state where their outer peripheral surfaces are separated from each other, The positional relationship is determined by the wire mesh An integrated said plurality of reinforcing bars was characterized by being adapted to insert into the reinforcing bar insertion hole together with the wire mesh.
The invention according to claim 2 , wherein a steel pipe is inserted into the reinforcing-bar insertion hole, and the plurality of reinforcing bars are inserted into the reinforcing-bar insertion hole by inserting the plurality of reinforcing bars into the steel pipe, The adhesive may fill both inside and outside of the steel pipe.
The invention according to claim 3 is characterized in that the steel pipe is formed with a plurality of holes penetrating the outer peripheral surface and the inner peripheral surface.
The invention according to claim 4 is characterized in that the adhesive having a higher tensile strength than concrete is an epoxy resin-based adhesive.

請求項1記載の発明によれば、同一外径の多数の鉄筋を用意しておけば、既存のコンクリート構造体を補強する際、設計された鉄筋の外径が大きい場合、その都度、大きい外径の鉄筋を手配する必要がなくなり、工期の短縮化を図り、また、コストの削減化を図る上で有利となる。
また、既存のコンクリート構造体を補強する際、工期の短縮化を図り、また、コストの削減化を図る上で有利となる。
また、定着性を確保する上で有利となる。
請求項記載の発明によれば、鋼管を用いて複数の鉄筋を位置決めする上で有利となり、また、コンクリート構造体の補強強度を高める上で有利となる。
請求項記載の発明によれば、鋼管と複数の鉄筋の定着性を確保する上で有利となる。
請求項記載の発明によれば、市販品を用いて既存のコンクリート構造体を補強でき、工期の短縮化を図り、また、コストの削減化を図る上で有利となる。
According to the first aspect of the present invention, when a large number of reinforcing bars having the same outer diameter are prepared, when reinforcing the existing concrete structure, if the outer diameter of the designed reinforcing bar is large, a large outer bar is required each time. There is no need to arrange a reinforcing bar having a diameter, which is advantageous in shortening the construction period and reducing costs.
Further, when reinforcing an existing concrete structure, it is advantageous in shortening the construction period and reducing costs.
Further, it is advantageous in securing the fixing property.
According to the second aspect of the present invention, it is advantageous in positioning a plurality of rebars using a steel pipe, and is advantageous in increasing the reinforcing strength of a concrete structure.
According to the third aspect of the present invention, it is advantageous in securing the fixing property between the steel pipe and the plurality of reinforcing bars.
According to the invention as set forth in claim 4, an existing concrete structure can be reinforced by using a commercially available product, which is advantageous in shortening the construction period and reducing costs.

(A)〜(D)は第1の実施の形態の補強工法の説明図である。(A)-(D) is explanatory drawing of the reinforcement method of 1st Embodiment. 第2の実施の形態の補強工法の説明図で、鉄筋挿入用孔に挿入された鋼管および複数の鉄筋と、充填されたエポキシ樹脂系接着剤の平面図である。It is explanatory drawing of the reinforcement method of 2nd Embodiment, Comprising: It is a top view of the steel pipe and several reinforcement which were inserted in the hole for reinforcement insertion, and the filled epoxy resin adhesive. 第3の実施の形態の補強工法の説明図で、鉄筋挿入用孔に挿入された鋼管および複数の鉄筋と、充填されたエポキシ樹脂系接着剤の平面図である。It is an explanatory view of a reinforcing method of a third embodiment, and is a plan view of a steel pipe and a plurality of reinforcing bars inserted into a reinforcing-bar insertion hole, and a filled epoxy resin-based adhesive.

次に、本発明の実施の形態について図面を参照して説明する。
(第1の実施の形態)
図1に示すように、補強すべきコンクリート構造体は、例えば、コンクリート製の壁10である。
図1(A)に示すように、コンクリート製の壁10には既に複数の鉄筋12が2列で設けられている。
本実施の形態では、2列の鉄筋1612の両側に、それぞれ鉄筋挿入用孔14を複数形成し、図1(B)、(C)に示すように、各鉄筋挿入用孔14に複数の鉄筋16を挿入することでコンクリート製の壁10を補強する。
各鉄筋挿入用孔14に挿入する複数の鉄筋16は、同一の外径であり、同一の長さを有している。
鉄筋挿入用孔14に複数の鉄筋16を挿入後、図1(C)に示すように、鉄筋挿入用孔14に、コンクリートよりも引張強度の高い接着剤を充填し、硬化させる。
このような接着剤として、例えば、市販品のエポキシ樹脂系接着剤18を用いることができる。エポキシ樹脂系接着剤18は、液状樹脂に硬化剤を混合し、硬化させて用いるものである。
液状樹脂に硬化剤を混合した硬化前のエポキシ樹脂系接着剤18は流動性に優れるため、鉄筋挿入用孔14に充填されると、複数の鉄筋16の隙間および周囲にわたって充填され、硬化することで鉄筋挿入用孔14の内周面と複数の鉄筋16とが一体化される。
Next, embodiments of the present invention will be described with reference to the drawings.
(First Embodiment)
As shown in FIG. 1, the concrete structure to be reinforced is, for example, a concrete wall 10.
As shown in FIG. 1A, a plurality of reinforcing bars 12 are already provided in two rows on a concrete wall 10.
In the present embodiment, a plurality of reinforcing bar insertion holes 14 are formed on both sides of two rows of reinforcing bars 1612, and as shown in FIGS. Inserting 16 reinforces the concrete wall 10.
The plurality of reinforcing bars 16 inserted into each reinforcing-bar insertion hole 14 have the same outer diameter and the same length.
After inserting the plurality of rebars 16 into the rebar insertion holes 14, as shown in FIG. 1 (C), the rebar insertion holes 14 are filled with an adhesive having higher tensile strength than concrete, and cured.
As such an adhesive, for example, a commercially available epoxy resin-based adhesive 18 can be used. The epoxy resin adhesive 18 is used by mixing a liquid resin with a curing agent and curing the mixture.
The epoxy resin-based adhesive 18 obtained by mixing a liquid resin with a curing agent is excellent in fluidity, so that when it is filled in the reinforcing-bar insertion hole 14, it is filled and hardened over the gaps and surroundings of the plurality of reinforcing bars 16. Thus, the inner peripheral surface of the reinforcing bar insertion hole 14 and the plurality of reinforcing bars 16 are integrated.

本実施の形態では、複数の鉄筋16は、鉄筋挿入用孔14内においてそれらの外周面の相互が離間して配置され、各鉄筋16の外周面の全域にエポキシ樹脂系接着剤18が位置しており、複数の鉄筋16と鉄筋挿入用孔14の内周面との一体化がより強固になされる。
なお、本発明では鉄筋挿入用孔14内において複数の鉄筋16の外周面相互を接触させて配置してもよい。複数の鉄筋16の外周面相互が接触している場合であっても、硬化剤を混合した液状のエポキシ樹脂系接着剤18は流動性に優れるため、複数の鉄筋16相互の隙間に確実に充填され一体化される。しかしながら、複数の鉄筋16の外周面の相互を離間して配置した方が、複数の鉄筋16と鉄筋挿入用孔14の内周面とを一体化する上で有利となり、定着長を確保する上で有利となる。
なお、鉄筋16としてねじ節鉄筋16を用いると、複数の鉄筋16と鉄筋挿入用孔14の内周面とを一体化する上で有利となり、定着長を確保する上で有利となる。
In the present embodiment, the plurality of reinforcing bars 16 are arranged such that their outer peripheral surfaces are separated from each other in the reinforcing-bar insertion hole 14, and the epoxy resin adhesive 18 is located over the entire outer peripheral surface of each reinforcing bar 16. As a result, the integration of the plurality of rebars 16 with the inner peripheral surface of the rebar insertion hole 14 is further strengthened.
In the present invention, the outer peripheral surfaces of the plurality of rebars 16 may be arranged in contact with each other in the rebar insertion hole 14. Even when the outer peripheral surfaces of the plurality of reinforcing bars 16 are in contact with each other, the liquid epoxy resin-based adhesive 18 mixed with the curing agent has excellent fluidity, so that the gap between the plurality of reinforcing bars 16 is reliably filled. And integrated. However, arranging the outer circumferential surfaces of the plurality of reinforcing bars 16 apart from each other is advantageous in integrating the plurality of reinforcing bars 16 with the inner circumferential surface of the reinforcing bar insertion hole 14, and in securing the fixing length. Is advantageous.
The use of the threaded reinforcing bar 16 as the reinforcing bar 16 is advantageous in integrating the plurality of reinforcing bars 16 and the inner peripheral surface of the reinforcing bar insertion hole 14, and is advantageous in securing the fixing length.

鉄筋挿入用孔14内において複数の鉄筋16をそれらの外周面の相互を離間して配置するには、例えば、鉄筋16の外径に対応した大きさの網目を有し鉄筋挿入用孔14に挿入可能な外径の金網を用意する。
そして、複数の鉄筋16の長手方向両端に金網をそれぞれ配置し、それら鉄筋16の両端を一対の金網の網目に挿入し、複数の鉄筋16を、それらの外周面の相互を離間させた状態に位置関係を定め一体化させておく。
そして、一対の金網により位置関係が定められ一体化された複数の鉄筋16を鉄筋挿入用孔14に挿入する。
これにより鉄筋挿入用孔14内において複数の鉄筋16がそれらの外周面の相互を離間して配置される。
In order to arrange the plurality of rebars 16 in the rebar insertion hole 14 so that their outer peripheral surfaces are spaced apart from each other, for example, a mesh having a size corresponding to the outer diameter of the rebar 16 is provided in the rebar insertion hole 14. Prepare a wire mesh with an insertable outer diameter.
Then, wire meshes are respectively arranged at both ends in the longitudinal direction of the plurality of reinforcing bars 16, and both ends of the reinforcing bars 16 are inserted into a mesh of a pair of wire meshes. The positional relationship is determined and integrated.
Then, a plurality of rebars 16 whose positional relationship is determined by a pair of wire meshes and integrated are inserted into the rebar insertion holes 14.
Thereby, the plurality of rebars 16 are arranged in the rebar insertion hole 14 with their outer peripheral surfaces separated from each other.

本実施の形態のコンクリート構造体の補強工法によれば、エポキシ樹脂系接着剤18が複数の鉄筋16の隙間からそれら鉄筋16の外周にわたって充填され、鉄筋挿入用孔14の内周面と一体化される。
したがって、太い一本の鉄筋と同様の補強効果を得る上で有利となる。
また、複数の鉄筋16相互は、エポキシ樹脂系接着剤18により一体化されているので、複数の鉄筋16に設計通りの定着長を確保する上で有利となる。
また、エポキシ樹脂系接着剤18は、コンクリートよりも引張強度が高いため、複数の鉄筋16の定着長を確保する上で有利となる。
また、複数の鉄筋16は同一の外径を有しているので、補強強度の計算を簡単に行なえ、コンクリート製の壁10を簡単に補強する上で有利となる。
According to the concrete structure reinforcing method of the present embodiment, the epoxy resin adhesive 18 is filled from the gaps between the plurality of reinforcing bars 16 to the outer periphery of the reinforcing bars 16 and integrated with the inner circumferential surface of the reinforcing bar insertion hole 14. Is done.
Therefore, it is advantageous in obtaining the same reinforcing effect as a single thick reinforcing bar.
Further, since the plurality of reinforcing bars 16 are integrated with each other by the epoxy resin-based adhesive 18, it is advantageous in securing the designed fixing length of the plurality of reinforcing bars 16.
Further, since the epoxy resin adhesive 18 has a higher tensile strength than concrete, it is advantageous in securing the fixing length of the plurality of reinforcing bars 16.
Further, since the plurality of reinforcing bars 16 have the same outer diameter, the calculation of the reinforcing strength can be easily performed, which is advantageous for easily reinforcing the concrete wall 10.

したがって、同一外径の多数の鉄筋16を用意しておけば、既存のコンクリート製の壁10を補強する際、設計された鉄筋の外径が大きい場合、その都度、大きい外径の鉄筋を手配する必要がなくなり、工期の短縮化を図り、また、コストの削減化を図る上で有利となる。   Therefore, if a large number of reinforcing bars 16 having the same outer diameter are prepared, when reinforcing the existing concrete wall 10, if the outer diameter of the designed reinforcing bar is large, a reinforcing bar having a large outer diameter is arranged each time. This is advantageous in shortening the construction period and reducing costs.

(第2の実施の形態)
図2に示すように、第2の実施の形態は、鉄筋挿入用孔14に鋼管20を挿入し、鉄筋挿入用孔14への複数本の鉄筋16の挿入を、複数本の鉄筋16を鋼管20に挿入することで行ない、エポキシ樹脂系接着剤18を、鋼管20の内側と外側の双方に充填するようにしたものである。
鉄筋挿入用孔14の内周面と複数の鉄筋16とは、エポキシ樹脂系接着剤18および鋼管20を介して一体化される。
第2の実施の形態によれば、第1の実施の形態と同様に、既存のコンクリート構造体を補強する際、設計された鉄筋の外径が大きい場合、その都度、大きい外径の鉄筋を手配する必要がなくなり、工期の短縮化を図り、また、コストの削減化を図る上で有利となる。
また、鉄筋挿入用孔14内において、鋼管20を用いて複数の鉄筋16を位置決めする上で有利となり、また、コンクリート製の壁10を、複数の鉄筋16と鋼管20との双方により補強できるので、コンクリート製の壁10の補強強度を高める上で有利となる。
(Second embodiment)
As shown in FIG. 2, in the second embodiment, a steel pipe 20 is inserted into a reinforcing-bar insertion hole 14, a plurality of reinforcing bars 16 are inserted into the reinforcing-bar insertion hole 14, and the plurality of reinforcing bars 16 are The epoxy resin-based adhesive 18 is filled in both the inside and the outside of the steel pipe 20 by inserting it into the steel pipe 20.
The inner peripheral surface of the reinforcing bar insertion hole 14 and the plurality of reinforcing bars 16 are integrated via an epoxy resin adhesive 18 and a steel pipe 20.
According to the second embodiment, similarly to the first embodiment, when reinforcing an existing concrete structure, if the designed rebar has a large outer diameter, a reinforcing bar having a larger outer diameter is used each time. This eliminates the need for arrangement, which is advantageous in shortening the construction period and reducing costs.
Further, it is advantageous in positioning the plurality of rebars 16 using the steel pipes 20 in the rebar insertion holes 14, and the concrete wall 10 can be reinforced by both the plurality of rebars 16 and the steel pipes 20. This is advantageous in increasing the reinforcing strength of the concrete wall 10.

(第3の実施の形態)
図3に示すように、第3の実施の形態は、第2の実施の形態で用いた鋼管20に、その外周面と内周面とに貫通する孔2002を鋼管20の周方向および長手方向に間隔をおいて複数形成したものである。
第3の実施の形態によれば、第2の実施の形態と同様な効果が奏されることは無論のこと、複数の孔2002により鉄筋挿入用孔14の内周面と鋼管20との付着性が高まり、複数の鉄筋16および鋼管20の定着性を確保する上で有利となる。
(Third embodiment)
As shown in FIG. 3, in the third embodiment, a steel pipe 20 used in the second embodiment is provided with holes 2002 penetrating through the outer peripheral surface and the inner peripheral surface thereof in the circumferential direction and the longitudinal direction of the steel pipe 20. Are formed at intervals.
According to the third embodiment, it is needless to say that the same effect as that of the second embodiment is exerted. The plurality of holes 2002 allow the inner peripheral surface of the reinforcing bar insertion hole 14 to adhere to the steel pipe 20. This is advantageous in securing the fixing properties of the plurality of rebars 16 and the steel pipes 20.

なお、実施の形態では、鉄筋挿入用孔14に挿入する複数の鉄筋16の外径が同一である場合について説明したが、複数種類の外径の鉄筋16を多数用意した場合、鉄筋挿入用孔14に、複数の外径の鉄筋16を組み合わせて挿入するなど任意である。   In the embodiment, the case where the outer diameters of the plurality of reinforcing bars 16 to be inserted into the reinforcing bar insertion holes 14 are the same is described. It is optional, such as inserting a plurality of reinforcing bars 16 having a plurality of outer diameters in combination.

10 コンクリート製の壁
14 鉄筋挿入用孔
16 鉄筋
18 エポキシ樹脂系接着剤
20 鋼管
2002 孔
REFERENCE SIGNS LIST 10 Concrete wall 14 Rebar insertion hole 16 Reinforcement 18 Epoxy resin adhesive 20 Steel pipe 2002 Hole

Claims (4)

コンクリート構造体の補強工法であって、
前記コンクリート構造体に鉄筋挿入用孔を形成し、
前記鉄筋挿入用孔に同一の外径の複数本の鉄筋を挿入し、
前記複数本の鉄筋を、前記鉄筋挿入用孔内でそれらの外周面を離間させて配置し、
前記鉄筋挿入用孔にコンクリートよりも大きい引張強度を有する接着剤を充填し硬化させるに際して、
前記鉄筋の外径に対応した大きさの網目を有し前記鉄筋挿入用孔に挿入可能な外径の金網を複数用意し、
前記複数本の鉄筋の長手方向両端に前記金網をそれぞれ配置し、それら鉄筋の両端を前記金網の網目に挿入し、前記複数本の鉄筋を、それらの外周面の相互を離間させた状態に位置関係を定めて一体化させておき、
前記金網により位置関係が定められ一体化された前記複数本の鉄筋を前記金網と共に前記鉄筋挿入用孔に挿入するようにした、
ことを特徴とするコンクリート構造体の補強工法。
A method of reinforcing a concrete structure,
Forming a reinforcing bar insertion hole in the concrete structure,
Insert a plurality of rebars of the same outer diameter into the rebar insertion hole,
The plurality of rebars are arranged with their outer peripheral surfaces spaced apart in the rebar insertion hole,
Runisaishite cured filled with an adhesive having a greater tensile strength than the concrete to the steel bar insertion hole,
Prepare a plurality of outer diameter wire mesh having a mesh of a size corresponding to the outer diameter of the rebar, which can be inserted into the rebar insertion hole,
The wire meshes are arranged at both ends in the longitudinal direction of the plurality of rebars, and both ends of the rebars are inserted into the mesh of the wire mesh. Establish relationships and unify them,
The plurality of rebars whose positional relationship was determined and integrated by the wire mesh were inserted into the rebar insertion hole together with the wire mesh,
A method for reinforcing a concrete structure, characterized in that:
前記鉄筋挿入用孔に鋼管を挿入し、
前記鉄筋挿入用孔への前記複数本の鉄筋の挿入は、前記複数本の鉄筋を前記鋼管に挿入することで行ない、
前記接着剤は、前記鋼管の内側と外側の双方に充填する、
ことを特徴とする請求項記載のコンクリート構造体の補強工法。
Insert a steel pipe into the rebar insertion hole,
Inserting the plurality of rebars into the rebar insertion hole is performed by inserting the plurality of rebars into the steel pipe,
The adhesive fills both the inside and the outside of the steel pipe,
The method for reinforcing a concrete structure according to claim 1, wherein:
前記鋼管には、その外周面と内周面とを貫通する複数の孔が形成されている、
ことを特徴とする請求項記載のコンクリート構造体の補強工法。
The steel pipe is formed with a plurality of holes penetrating the outer peripheral surface and the inner peripheral surface,
3. The method for reinforcing a concrete structure according to claim 2, wherein:
前記コンクリートよりも大きい引張強度を有する接着剤は、エポキシ樹脂系接着剤である、
ことを特徴とする請求項1〜の何れか1項記載のコンクリート構造体の補強工法。
The adhesive having a greater tensile strength than the concrete is an epoxy resin-based adhesive,
The method for reinforcing a concrete structure according to any one of claims 1 to 3 , wherein:
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