JP2002054306A - Reinforcing structure and reinforcing method of structure member - Google Patents

Reinforcing structure and reinforcing method of structure member

Info

Publication number
JP2002054306A
JP2002054306A JP2000243017A JP2000243017A JP2002054306A JP 2002054306 A JP2002054306 A JP 2002054306A JP 2000243017 A JP2000243017 A JP 2000243017A JP 2000243017 A JP2000243017 A JP 2000243017A JP 2002054306 A JP2002054306 A JP 2002054306A
Authority
JP
Japan
Prior art keywords
reinforcing
fixing
concrete
building
members
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2000243017A
Other languages
Japanese (ja)
Inventor
Yoshitomo Hosoi
Kozo Kimura
Ken Miura
Seiichi Nishimura
憲 三浦
耕三 木村
義友 細井
清一 西村
Original Assignee
Ohbayashi Corp
Takemoru Kogyo Kk
タケモル工業株式会社
株式会社大林組
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ohbayashi Corp, Takemoru Kogyo Kk, タケモル工業株式会社, 株式会社大林組 filed Critical Ohbayashi Corp
Priority to JP2000243017A priority Critical patent/JP2002054306A/en
Publication of JP2002054306A publication Critical patent/JP2002054306A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0251Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
    • E04G2023/0262Devices specifically adapted for anchoring the fiber reinforced plastic elements, e.g. to avoid peeling off

Abstract

PROBLEM TO BE SOLVED: To provide the reinforcing structure and reinforcing method of a structure member, by which the fixing properties of a reinforcing member are improved by preventing the peeling of the reinforcing member while reducing the generation of noises, waste materials by minimizing the area of substrate treatment and enhancing anchorage properties of reinforcement members. SOLUTION: The reinforcing structure of the structure member is constituted by burying and installing fixing members 13, which are exposed onto the surface 10a of a concrete wall 10 and have shear strength higher than shear force working among the surface 10a and the reinforcing members 15 bonded with the surface 10a, while bonding the reinforcing members 15 with the exposed fixing members 13. The structure is executed in such a manner that the fixing members 13 are prepared while burying sections exposed to the surface 10a of the concrete wall 10 and used for burying the fixing members 13 are formed to the concrete wall 10, the burying sections are buried and the reinforcing members 15 are bonded with the fixing members 13 exposed onto the surface 10a of the concrete wall 10.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【発明の属する技術分野】本発明は、建築物や土木構造
物などを構成する構築物部材であって、例えば既存構造
物の構築物部材にシート状または板状の補強部材を接着
して、該既存構造物の強度を高めるようにした構築物部
材の補強構造および補強方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building member for constructing a building or civil engineering structure, for example, by bonding a sheet-like or plate-like reinforcing member to a building member of an existing structure. The present invention relates to a reinforcing structure and a reinforcing method for a building member that enhances the strength of a structure.
【0002】[0002]
【従来の技術】RC造構築物やSRC造構築物などの構
造物の補強方法の1つとして、FRPなどの高強度繊維
を用いた補強部材をシート状や板状に加工して構築物部
材の表面に接着する方法がある。このような補強部材を
既存構造物の構築物部材に接着する場合、まず、その構
築物部材の表面の仕上げ材をサンダー掛けなどにより除
去して、コンクリート躯体を露出させる下地処理が行わ
れる。その後、この下地処理したコンクリート躯体面に
接着剤を塗布して上記補強部材が貼り付けられる。
2. Description of the Related Art As one method of reinforcing structures such as RC structures and SRC structures, a reinforcing member using high-strength fiber such as FRP is processed into a sheet or a plate to form a surface of the building member. There is a method of bonding. When such a reinforcing member is bonded to a building member of an existing structure, first, a finishing material on the surface of the building member is removed by sanding or the like, and a foundation treatment for exposing the concrete skeleton is performed. Thereafter, an adhesive is applied to the surface of the concrete body that has been subjected to the base treatment, and the reinforcing member is attached.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、かかる
従来の既存構造物の補強方法にあっては、下地処理した
コンクリート躯体面に接着した補強部材に大きな引張り
せん断力が作用した場合に、該補強部材とコンクリート
躯体面との接合面で剥離が発生し易く、該補強部材が備
える高い引張り強度を十分に活用することができない。
つまり、コンクリートの表面に接着剤を介して補強部材
を貼り付けた場合、各部材の引張り剪断強度が補強部
材、接着剤、コンクリートの順に小さくなり、上記補強
部材に大きな引張り剪断力が作用するとコンクリートの
表層部で破壊が発生する。因みに、コンクリートの引張
り剪断強度は20〜30Kgf/cmであり、これは接着剤
の1/4〜1/5程度と小さい。このため、補強部材の
定着性を高めるためにこれの上からアンカーを打ち込ん
だり、また補強部材の上からさらに別の繊維シートを巻
き付けたり貼り付けたりするなどの後施工が必要となっ
て、多くの労力や時間および経費がかかってしまう。
However, in such a conventional method for reinforcing an existing structure, when a large tensile shearing force acts on the reinforcing member bonded to the surface of the concrete body subjected to the foundation treatment, the reinforcing member is not stiffened. Separation is likely to occur at the joint surface between the concrete member and the concrete body surface, and the high tensile strength of the reinforcing member cannot be fully utilized.
In other words, when a reinforcing member is adhered to the surface of concrete via an adhesive, the tensile shear strength of each member decreases in the order of the reinforcing member, the adhesive, and the concrete. Destruction occurs at the surface layer of. Incidentally, the tensile shear strength of concrete is 20 to 30 kgf / cm 2 , which is as small as about 4 to 5 of the adhesive. For this reason, post-installation such as driving an anchor from above the reinforcing member in order to enhance the fixing property of the reinforcing member, or winding or attaching another fiber sheet from above the reinforcing member is required, Labor, time and money.
【0004】また、下地処理を、補強部材を張り付ける
箇所全面に亘って広範に行う必要があり、仕上げ材を除
去する際の騒音が長期に亘って発生されるとともに、大
量の廃材が発生してその処分にも多くの労力や時間およ
び経費がかかってしまう。
In addition, it is necessary to perform the base treatment widely over the entire area where the reinforcing member is to be attached, so that the noise when removing the finishing material is generated for a long time and a large amount of waste material is generated. Disposal also requires a great deal of labor, time and money.
【0005】更に、下地処理する際のサンダー掛けの処
理面積が広いため、必然的に粉塵の発生量も増加してし
まう。このように粉塵が多量に発生した場合、既存構造
物内での補強工事が該構造物内で営まれる通常の生活や
仕事と平行して行われる場合は、工事区域を板囲いなど
で覆って粉塵が外方に漏れるのを防止する対策がとられ
る。このため、板囲いなどの養生を必要とし、特に粉塵
が多いことにより板囲いの密閉性をより高める必要があ
り、粉塵対策に多くの経費が費やされてしまう。
[0005] Further, since the processing area for sanding in the base treatment is large, the amount of generated dust necessarily increases. When a large amount of dust is generated in this way, if the reinforcement work in the existing structure is performed in parallel with the normal life and work performed in the structure, cover the work area with a board enclosure or the like. Measures are taken to prevent dust from leaking out. For this reason, it is necessary to cure the board enclosure and the like. Particularly, since there is a large amount of dust, it is necessary to further improve the hermeticity of the board enclosure.
【0006】そこで、本発明はかかる従来の課題に鑑み
て成されたもので、補強部材の剥離を防止して補強部材
の定着性を高めるとともに、下地処理の面積を最小限に
して騒音や廃材および粉塵の発生を低減することができ
る構築物部材の補強構造および補強方法を提供すること
を目的とする。
Accordingly, the present invention has been made in view of the above-mentioned conventional problems, and it is intended to prevent the peeling of the reinforcing member to enhance the fixing property of the reinforcing member, and to minimize the area of the base treatment to reduce noise and waste material. It is another object of the present invention to provide a reinforcement structure and a reinforcement method for a building member capable of reducing generation of dust.
【0007】[0007]
【課題を解決するための手段】かかる目的を達成するた
めに本発明の構築物部材の補強構造は、構築物部材の表
面に補強部材を接着するようにした構築物部材の補強構
造において、上記構築物部材にその表面に露出させて、
当該表面とこれに接着された上記補強部材との間に作用
する剪断力以上の剪断強度を有する定着部材を埋め込ん
で設けるとともに、露出させた上記定着部材に上記補強
部材を接着することを特徴とする。
According to the present invention, there is provided a reinforcing member for a building member, wherein the reinforcing member is bonded to a surface of the building member. Exposed on the surface,
Embedding and providing a fixing member having a shear strength equal to or greater than the shearing force acting between the surface and the reinforcing member bonded thereto, and bonding the reinforcing member to the exposed fixing member. I do.
【0008】また、本発明の構築物部材の補強方法は、
構築物部材の表面に補強部材を接着するようにした構築
物部材の補強方法において、上記構築物部材の表面とこ
れに接着された上記補強部材との間に作用する剪断力以
上の剪断強度を有する定着部材を用意するとともに、上
記構築物部材に、その表面に露出させて上記定着部材を
埋め込むための埋め込み部を形成し、その後、該埋め込
み部に埋め込んで上記構築物部材の表面に露出させた上
記定着部材に上記補強部材を接着することを特徴とす
る。
[0008] The method for reinforcing a building member according to the present invention comprises the steps of:
In a method for reinforcing a building member, wherein a reinforcing member is bonded to a surface of the building member, a fixing member having a shear strength equal to or higher than a shearing force acting between the surface of the building member and the reinforcing member bonded thereto. Along with preparing the building member, an embedding portion for embedding the fixing member is formed by exposing the fixing member on the surface thereof, and then the fixing member is embedded in the embedding portion and exposed on the surface of the building member. The reinforcing member is bonded.
【0009】[0009]
【発明の実施の形態】以下、本発明の実施形態を添付図
面を参照して詳細に説明する。図1から図5は本発明の
構築物部材の補強構造および補強方法の一実施形態を示
し、図1から図4はそれぞれ(a)に縦断面図(b)に
正面図として示す施工工程を順を追って示す構成図、図
5は補強部材に作用する引張り剪断力に対する荷重分布
を示す説明図である。
Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 5 show an embodiment of a reinforcing structure and a reinforcing method of a building member according to the present invention, and FIGS. 1 to 4 respectively show construction steps shown in (a) as a longitudinal sectional view and (b) as front views. FIG. 5 is an explanatory view showing a load distribution with respect to a tensile shearing force acting on the reinforcing member.
【0010】図1から図4には、コンクリート壁10を
補修する場合が例示されている。本実施形態では既存構
造物としてRC造構築物である場合を例にとって示す
が、新設構造物の補強にも適用できることは言うまでも
ない。本実施形態は基本的には、構築物部材、例えばコ
ンクリート壁10にその表面10aに露出させて、当該
表面10aとこれに接着された補強部材15との間に作
用する剪断力以上の剪断強度を有する定着部材13,2
0を埋め込んで設けるとともに、露出させた定着部材1
3,20に補強部材15を接着して構成され、この構造
は、コンクリート壁10の表面10aとこれに接着され
た補強部材15との間に作用する剪断力以上の剪断強度
を有する定着部材13,20を用意するとともに、コン
クリート壁10に、その表面10aに露出させて定着部
材13,20を埋め込むための埋め込み部17を形成
し、その後、埋め込み部17に埋め込んでコンクリート
壁10の表面10aに露出させた定着部材13,20に
補強部材15を接着することによって施工されることに
なる。
FIGS. 1 to 4 show a case where a concrete wall 10 is repaired. In the present embodiment, the case where the existing structure is an RC structure is shown as an example, but it is needless to say that the present invention can be applied to reinforcement of a new structure. The present embodiment basically exposes a building member, for example, a concrete wall 10, to its surface 10a to provide a shear strength equal to or greater than the shear force acting between the surface 10a and the reinforcing member 15 bonded thereto. Fixing members 13 and 2 having
0 is embedded and provided, and the exposed fixing member 1 is provided.
This structure is formed by bonding a reinforcing member 15 to the reinforcing members 15 and 20. The fixing member 13 has a shear strength not less than the shear force acting between the surface 10a of the concrete wall 10 and the reinforcing member 15 bonded thereto. , 20 are prepared, and an embedding portion 17 for embedding the fixing members 13 and 20 is formed on the concrete wall 10 by exposing the surface 10a thereof. This is performed by bonding the reinforcing member 15 to the exposed fixing members 13 and 20.
【0011】コンクリート壁10は、構造体本体である
コンクリート躯体11と、このコンクリート躯体11の
表面に施工された仕上げ材12とから構成される。コン
クリート躯体11の表面に施工された仕上げ材12は、
モルタル層やモルタル層表面に施工される塗装,クロス
などの表面装飾材などがあり、補修工事を実施する際に
は、まず、図1に示したように二点鎖線で示す帯状の補
強部分Sおよびその近傍に存在する仕上げ材12を除去
してコンクリート躯体11のフレッシュ面を露出させ
る。この仕上げ材12の除去は、浮き上がり状態にある
ものはハンマーなどで打撃したり、へらでそぎ取ったり
し、また、必要に応じてサンダー掛けすることにより行
われる。そして、仕上げ材12が除去されたコンクリー
ト躯体11の補強部分Sに上記定着部材13の埋め込み
点Pを所定間隔(例えば500mmピッチ)をもって複数
箇所マーキング16する。
The concrete wall 10 is composed of a concrete body 11 which is a main body of the structure and a finishing material 12 applied to the surface of the concrete body 11. The finishing material 12 constructed on the surface of the concrete skeleton 11
There are mortar layers and surface decoration materials such as paints and cloths applied to the surface of the mortar layer. When performing repair work, first, as shown in FIG. And the finishing material 12 existing in the vicinity thereof is removed to expose the fresh surface of the concrete skeleton 11. The removal of the finishing material 12 is performed by hitting the floating material with a hammer or the like, shaving off the material with a spatula, or sanding as necessary. Then, the embedding points P of the fixing member 13 are marked at a plurality of locations 16 at predetermined intervals (for example, at a pitch of 500 mm) in the reinforcing portion S of the concrete skeleton 11 from which the finishing material 12 has been removed.
【0012】次に、図2に示したように上記埋め込み点
Pに定着部材13の埋め込み部17を所定深さdをもっ
て穿設する。本実施形態ではこの埋め込み部17の直径
をほぼ50mm程度としてある。そして、図3に示したよ
うに該埋め込み部17に、表面10aとこれに接着され
る補強部材15との間に作用する剪断力以上の高い引張
り剪断強度を発揮する樹脂モルタル、例えば充填用エポ
キシ樹脂を充填し、これが硬化することにより上記定着
部材13となる。この定着部材13の露出される先端面
13aは補強部分Sと同一面となるように平坦に処理さ
れる。
Next, as shown in FIG. 2, an embedding portion 17 of the fixing member 13 is formed at the embedding point P with a predetermined depth d. In the present embodiment, the diameter of the buried portion 17 is about 50 mm. Then, as shown in FIG. 3, a resin mortar exhibiting a high tensile shear strength higher than the shear force acting between the surface 10a and the reinforcing member 15 adhered to the embedding portion 17, such as a filling epoxy, is provided. The fixing member 13 is formed by filling a resin and curing the resin. The exposed end surface 13a of the fixing member 13 is flattened so as to be flush with the reinforcing portion S.
【0013】次に、図4に示すように上記補強部分Sに
帯状の補強部材15を接着剤14を介して接着する。こ
のとき、補強部材15は上記定着部材13の先端面13
aにも同時に接着される。上記補強部材15としては、
シート状の高強度繊維または板状に加工した高強度繊維
強化プラスチック(FRP)が用いられ、この場合の高
強度繊維としては、例えば炭素繊維、アラミド繊維、ス
チール繊維、ガラス繊維などを用いることができる。シ
ート状に加工した補強部材15は可撓性を備えるため、
特に表面10aが湾曲している場合などに適し、また、
板状に加工した剛性の高い補強部材15は表面10aが
平坦な場合に適している。
Next, as shown in FIG. 4, a belt-shaped reinforcing member 15 is bonded to the reinforcing portion S via an adhesive 14. At this time, the reinforcing member 15 is connected to the distal end surface 13 of the fixing member 13.
a. As the reinforcing member 15,
A sheet-like high-strength fiber or a plate-like high-strength fiber-reinforced plastic (FRP) is used. As the high-strength fiber in this case, for example, carbon fiber, aramid fiber, steel fiber, glass fiber, or the like may be used. it can. Since the reinforcing member 15 processed into a sheet shape has flexibility,
Especially suitable when the surface 10a is curved,
The highly rigid reinforcing member 15 processed into a plate shape is suitable when the surface 10a is flat.
【0014】そして、上記補強部材15を接着すること
により補強されたコンクリート躯体11は、最終的に該
補強部材15を埋設するように表面10a全体を、図4
中二点鎖線で示すようにモルタル層18で仕上げし、更
にその上から表面装飾材などが必要に応じて施される。
The concrete body 11 reinforced by bonding the reinforcing member 15 is entirely covered with the surface 10a so that the reinforcing member 15 is finally buried in FIG.
As shown by the two-dot chain line, the mortar layer 18 is finished, and a surface decoration material or the like is further applied as necessary.
【0015】以下、本実施形態の作用を述べると、接着
剤14を介して補強部分Sに接着された補強部材15
は、コンクリート躯体11に接着されると同時に定着部
材13の先端面13aにも接着される。
The operation of the present embodiment will be described below. The reinforcing member 15 bonded to the reinforcing portion S via the adhesive 14 will be described.
Is adhered to the concrete body 11 and also to the front end surface 13a of the fixing member 13.
【0016】そして、図5に示すように地震やその他の
外力により補強部材15に大きな引張り剪断力Fが作用
した場合に、補強部材15から加わるこの剪断力Fによ
って表面10aが破壊して補強部材15とコンクリート
躯体11との接着部分で剥離が発生したとしても、該補
強部材15は定着部材13によってコンクリート躯体1
1に定着されることになる。
As shown in FIG. 5, when a large tensile shearing force F acts on the reinforcing member 15 due to an earthquake or other external force, the surface 10a is broken by the shearing force F applied from the reinforcing member 15 and the reinforcing member 15 is broken. Even if peeling occurs at the bonding portion between the concrete skeleton 15 and the concrete skeleton 11, the reinforcing member 15 is fixed by the fixing member 13 to the concrete skeleton 1.
1 will be fixed.
【0017】この場合に補強部材15から定着部材13
に上記引張り剪断力Fが入力されると、該定着部材13
の埋設部分13bはコンクリート躯体11内部に所定深
さdをもって係合されているため、該引張り剪断力Fは
定着部材13の埋設部分13bと埋め込み部17の内側
との間に圧縮力Qとして作用する。このとき、コンクリ
ートは引張り力や剪断力に比較して圧縮力に対しては著
しく大きな強度を備えているため、上記引張り剪断力F
を、定着部材13に対するコンクリート躯体11の支圧
作用で十分に支持することができる。従って、補強部材
15はコンクリート躯体11に対して適切に定着され、
該補強部材15による補強効果を十分に発揮させること
ができる。
In this case, from the reinforcing member 15 to the fixing member 13
When the above-mentioned tensile shear force F is input to the fixing member 13
Embedded in the concrete body 11 with a predetermined depth d, the tensile shearing force F acts as a compressive force Q between the embedded portion 13b of the fixing member 13 and the inside of the embedded portion 17. I do. At this time, since the concrete has a remarkably large strength against the compressive force as compared with the tensile force and the shear force, the above-mentioned tensile shear force F
Can be sufficiently supported by the supporting action of the concrete skeleton 11 against the fixing member 13. Therefore, the reinforcing member 15 is properly fixed to the concrete skeleton 11, and
The reinforcing effect by the reinforcing member 15 can be sufficiently exhibited.
【0018】また、本実施形態では補強部材15が定着
部材13に接着されることによりその定着性が確保され
ることになり、少なくとも該定着部材13の埋め込みを
確実に行うことにより補強部材15の定着性を確保でき
ることになる。従って、補強部材15とコンクリート躯
体11との強い接着力は必ずしも必要とはせず、このた
め本実施形態では下地処理は埋め込み点Pおよびその近
傍に存在する仕上げ材12の除去に止め、この下地処理
の面積を最小限度としてある。従って、仕上げ材12の
除去面積を減少できるため、下地処理段階での騒音発生
時間を短縮することができるとともに、下地処理に伴う
廃材の発生量を減少することができる。また、このこと
はサンダー掛けを少なくさせて粉塵の発生を減少させる
ことができる。
In the present embodiment, the fixing property of the reinforcing member 15 is secured by bonding the reinforcing member 15 to the fixing member 13. Fixing property can be secured. Therefore, a strong adhesive force between the reinforcing member 15 and the concrete skeleton 11 is not always necessary. Therefore, in the present embodiment, the base treatment is limited to the removal of the embedding point P and the finishing material 12 existing in the vicinity thereof. The processing area is minimized. Therefore, since the area of the finishing material 12 to be removed can be reduced, the noise generation time in the base treatment step can be shortened, and the amount of waste material generated due to the base treatment can be reduced. This can also reduce sanding and reduce the generation of dust.
【0019】ところで、本実施形態では補強部材15と
コンクリート躯体11との接着力も稼ぐため、上記補強
部分Sを下地処理して仕上げ材12を除去した場合を開
示したが、上述したように定着部材13の埋め込みを確
実に行う限りにおいて、この下地処理は必ずしも必要と
はしない。そして、このように下地処理を少なくするこ
とにより、工期の短縮化をも図ることができるようにな
る。
By the way, in this embodiment, the case where the finishing material 12 is removed by performing the ground treatment on the reinforcing portion S in order to increase the adhesive strength between the reinforcing member 15 and the concrete frame 11 is disclosed. This base treatment is not always necessary as long as the embedding 13 is performed reliably. By reducing the number of underlayer treatments, it is possible to shorten the construction period.
【0020】また、本実施形態では上記補強部分Sでは
コンクリート躯体11を露出した場合を開示したが、該
コンクリート躯体11の仕上げ層としてモルタルが塗布
されている場合、このモルタル層を含めて定着部材13
を埋め込むこともできる。
In this embodiment, the case where the concrete body 11 is exposed at the reinforcing portion S is disclosed. However, when the mortar is applied as a finishing layer of the concrete body 11, the fixing member including the mortar layer is included. 13
Can be embedded.
【0021】図6は他の実施形態を示し、上記実施形態
と同一構成部分に同一符号を付して重複する説明を省略
して述べる。この実施形態が上記実施形態と主に異なる
点は定着部材20をアンカー付き鋼板によって構成した
ことにある。即ち、該定着部材20は鋼板で形成される
円盤状頭部20aと、この円盤状頭部20aの下面中央
部から垂設されるアンカーピン20bとで構成され、こ
の定着部材20のアンカーピン20bをマーキングした
埋め込み点P(図1参照)に打ち込むようになってい
る。そして、後は上記実施形態と同様に補強部分Sに補
強部材15を接着剤14を介して貼り付けられる。該定
着部材20の頭部は円盤状である必要はなく、矩形等、
補強部材15に適した形状のものを用いることができる
ことは言うまでもない。
FIG. 6 shows another embodiment, in which the same components as those in the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted. This embodiment is mainly different from the above embodiment in that the fixing member 20 is formed of a steel plate with an anchor. That is, the fixing member 20 is composed of a disk-shaped head 20a formed of a steel plate and an anchor pin 20b vertically provided from the center of the lower surface of the disk-shaped head 20a. At the embedding point P (see FIG. 1) marked with. Then, the reinforcing member 15 is attached to the reinforcing portion S via the adhesive 14 in the same manner as in the above embodiment. The head of the fixing member 20 does not need to be disk-shaped,
It goes without saying that a shape suitable for the reinforcing member 15 can be used.
【0022】従って、この実施形態にあっても補強部材
15と定着部材20の鋼板で形成された円盤状頭部20
aとの接着により、該補強部材15に作用する引張り剪
断力Fは該定着部材20のアンカーピン20bを介して
コンクリート躯体11の内部に伝達される。このとき、
上記実施形態に示した定着部材20の埋設部分13bと
同様に、上記引張り剪断力Fはアンカーピン20bとコ
ンクリート躯体11との間に発生する圧縮力Qによって
支持されるため、補強部材15はコンクリート躯体11
に対する定着力が増大して補強効果が向上する。従っ
て、この実施形態にあっても上記実施形態と同様に下地
処理面積を少なくして、騒音、廃材、粉塵の発生を抑制
することができる。
Therefore, even in this embodiment, the disk-shaped head 20 made of the steel plate of the reinforcing member 15 and the fixing member 20 is provided.
Due to the adhesion with the member a, the tensile shearing force F acting on the reinforcing member 15 is transmitted to the inside of the concrete skeleton 11 via the anchor pin 20b of the fixing member 20. At this time,
Similar to the buried portion 13b of the fixing member 20 shown in the above embodiment, the tensile shearing force F is supported by the compressive force Q generated between the anchor pin 20b and the concrete frame 11, so that the reinforcing member 15 is made of concrete. Frame 11
And the reinforcing effect is improved. Therefore, even in this embodiment, similarly to the above-described embodiment, it is possible to reduce the area of the base treatment and suppress generation of noise, waste material, and dust.
【0023】ところで、上記各実施形態ではRC造構築
物を既存構造物として示した場合を開示したが、これ以
外にも木造建築物、更には建築物以外の構築物にあって
も本発明を適用することができる。また、補強部材15
の形状は帯状に限ることなく面状とすることもでき、ま
た、定着部13,20は補強部材15の端部や中間部の
任意の部位に設けることができ、要求される補強強度に
応じてそれぞれの組み合わせを任意に行うことができ
る。
By the way, in each of the above embodiments, the case where the RC structure is shown as an existing structure is disclosed. However, the present invention is also applied to a wooden structure and further to a structure other than a building. be able to. Also, the reinforcing member 15
The shape of the fixing member 13 and 20 can be provided at an arbitrary portion such as an end portion or an intermediate portion of the reinforcing member 15 depending on a required reinforcing strength. Each combination can be performed arbitrarily.
【0024】[0024]
【発明の効果】以上説明したように本発明の構築物部材
の補強構造および補強方法では、構築物部材に埋め込ん
で設けた定着部材が構築物部材の表面とこれに接着され
た補強部材との間に作用する剪断力以上の剪断強度を有
するため、構築物部材の表面に接着剤を介して補強部材
を接着した際、補強部材に作用する剪断力で構築物部材
の表面が破壊し当該補強部材が構築物部材から剥離して
も、当該剪断力を上記定着部材を介して構築物部材自体
で支持することができる。このため、補強部材の構築物
部材に対する定着力が増大して該補強部材に十分な補強
効果を発揮させることができる。
As described above, in the structure and method for reinforcing a building member according to the present invention, the fixing member embedded in the building member acts between the surface of the building member and the reinforcing member bonded thereto. Since the reinforcing member has a shear strength of not less than the shearing force, when the reinforcing member is bonded to the surface of the building member via an adhesive, the shearing force acting on the reinforcing member destroys the surface of the building member and the reinforcing member is Even when peeled, the shearing force can be supported by the building member itself via the fixing member. For this reason, the fixing force of the reinforcing member to the building member is increased, and the reinforcing member can exhibit a sufficient reinforcing effect.
【0025】また、上記補強部材の定着性は上記定着部
材により確保されるため、下地処理面積を最小限に止め
ることができ、これによって下地処理段階で発生する騒
音を抑えることができるとともに、下地処理に伴う廃材
の発生量を減少することができ、更にはサンダー掛けが
少なくなることにより粉塵の発生を減少することがで
き、環境保全に大いに貢献することができる。更に、下
地処理を少なくできることは工期の短縮化をも図ること
ができる。
Further, since the fixing property of the reinforcing member is ensured by the fixing member, it is possible to minimize the area of the undercoating process, thereby suppressing the noise generated in the undercoating processing stage, and The amount of waste generated during the treatment can be reduced, and the amount of dust can be reduced by reducing sanding, which can greatly contribute to environmental conservation. Furthermore, the fact that the base treatment can be reduced can also shorten the construction period.
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明の一実施形態を示す下地処理状態および
定着部材の埋め込み点をマーキングした状態の説明図で
ある。
FIG. 1 is an explanatory view showing a base processing state and a state where an embedding point of a fixing member is marked, showing an embodiment of the present invention.
【図2】本発明の一実施形態を示す定着部材の埋め込み
部を穿孔した状態の説明図である。
FIG. 2 is an explanatory view showing a state in which an embedding portion of a fixing member is perforated, showing one embodiment of the present invention.
【図3】本発明の一実施形態を示す定着部材を埋め込ん
だ状態の説明図である。
FIG. 3 is an explanatory diagram of a state in which a fixing member according to an embodiment of the present invention is embedded.
【図4】本発明の一実施形態を示す補強部材を接着した
状態の説明図である。
FIG. 4 is an explanatory view of a state in which a reinforcing member according to an embodiment of the present invention is bonded.
【図5】本発明の一実施形態を示す補強部材に作用する
引張り剪断力に対する荷重分布を示す説明図である。
FIG. 5 is an explanatory diagram showing a load distribution with respect to a tensile shear force acting on a reinforcing member according to an embodiment of the present invention.
【図6】本発明の他の実施形態を示す補強部材に作用す
る引張り剪断力に対する荷重分布を示す説明図である。
FIG. 6 is an explanatory diagram showing a load distribution with respect to a tensile shearing force acting on a reinforcing member according to another embodiment of the present invention.
【符号の説明】[Explanation of symbols]
10 コンクリート壁 10a 表面 11 コンクリート躯体 12 仕上げ材 13,20 定着部材 14 接着剤 15 補強部材 17 埋め込み部 S 補強部分 DESCRIPTION OF SYMBOLS 10 Concrete wall 10a Surface 11 Concrete frame 12 Finishing material 13, 20 Fixing member 14 Adhesive 15 Reinforcement member 17 Embedded part S Reinforcement part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 三浦 憲 大阪府大阪市中央区北浜東4番33号 株式 会社大林組本店内 (72)発明者 細井 義友 東京都北区十条仲原2丁目12番6号 (72)発明者 西村 清一 埼玉県所沢市山口1646−3 Fターム(参考) 2E164 AA05 BA06 CA15 EA05 2E176 AA01 AA07 BB29  ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Ken Miura 4-33 Kitahama Higashi, Chuo-ku, Osaka, Osaka Inside Obayashi-gumi head office (72) Inventor Yoshitomo Hosoi 2--12-6 Jujo Nakahara, Kita-ku, Tokyo (72) Inventor Seiichi Nishimura 1646-3 Yamaguchi, Tokorozawa-shi, Saitama F-term (reference) 2E164 AA05 BA06 CA15 EA05 2E176 AA01 AA07 BB29

Claims (2)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 構築物部材の表面に補強部材を接着する
    ようにした構築物部材の補強構造において、上記構築物
    部材にその表面に露出させて、当該表面とこれに接着さ
    れた上記補強部材との間に作用する剪断力以上の剪断強
    度を有する定着部材を埋め込んで設けるとともに、露出
    させた上記定着部材に上記補強部材を接着することを特
    徴とする構築物部材の補強構造。
    1. A reinforcing structure for a building member in which a reinforcing member is bonded to a surface of the building member, wherein the reinforcing member is exposed to the surface of the building member so as to be between the surface and the reinforcing member bonded thereto. A reinforcing member having a shear strength equal to or higher than the shearing force acting on the fixing member embedded therein, and bonding the reinforcing member to the exposed fixing member.
  2. 【請求項2】 構築物部材の表面に補強部材を接着する
    ようにした構築物部材の補強方法において、上記構築物
    部材の表面とこれに接着された上記補強部材との間に作
    用する剪断力以上の剪断強度を有する定着部材を用意す
    るとともに、上記構築物部材に、その表面に露出させて
    上記定着部材を埋め込むための埋め込み部を形成し、そ
    の後、該埋め込み部に埋め込んで上記構築物部材の表面
    に露出させた上記定着部材に上記補強部材を接着するこ
    とを特徴とする構築物部材の補強方法。
    2. A method for reinforcing a building member in which a reinforcing member is bonded to a surface of the building member, wherein a shear force equal to or greater than a shear force acting between the surface of the building member and the reinforcing member bonded thereto. Along with preparing a fixing member having strength, the building member is exposed to the surface to form an embedding portion for embedding the fixing member, and then embedded in the embedding portion and exposed to the surface of the building member. A method of reinforcing a building member, comprising bonding the reinforcing member to the fixing member.
JP2000243017A 2000-08-10 2000-08-10 Reinforcing structure and reinforcing method of structure member Pending JP2002054306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000243017A JP2002054306A (en) 2000-08-10 2000-08-10 Reinforcing structure and reinforcing method of structure member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000243017A JP2002054306A (en) 2000-08-10 2000-08-10 Reinforcing structure and reinforcing method of structure member

Publications (1)

Publication Number Publication Date
JP2002054306A true JP2002054306A (en) 2002-02-20

Family

ID=18733939

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104213717A (en) * 2014-07-10 2014-12-17 上海市建筑科学研究院(集团)有限公司 Integrated reconstruction method for multi-storey residential

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104213717A (en) * 2014-07-10 2014-12-17 上海市建筑科学研究院(集团)有限公司 Integrated reconstruction method for multi-storey residential
CN104213717B (en) * 2014-07-10 2016-08-24 上海市建筑科学研究院(集团)有限公司 Multi-storey building integration transformation method of construction

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