JP5623439B2 - Reinforcement method of existing building using reinforced steel plate - Google Patents

Reinforcement method of existing building using reinforced steel plate Download PDF

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JP5623439B2
JP5623439B2 JP2012010956A JP2012010956A JP5623439B2 JP 5623439 B2 JP5623439 B2 JP 5623439B2 JP 2012010956 A JP2012010956 A JP 2012010956A JP 2012010956 A JP2012010956 A JP 2012010956A JP 5623439 B2 JP5623439 B2 JP 5623439B2
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support bolt
formwork
hole
reinforcing
steel plate
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JP2013147902A (en
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阿部　秀幸
秀幸 阿部
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阿部　秀幸
秀幸 阿部
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging

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  • Working Measures On Existing Buildindgs (AREA)
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Description

この発明は、建造物の既設の柱や壁に補強鋼板を対向させ、それら補強鋼板と柱や壁との対向部間にグラウト材などの充填材を充填する補強鋼板を用いた既設建造物の補強方法に関する。 The present invention relates to an existing building using a reinforcing steel plate in which a reinforcing steel plate is opposed to an existing column or wall of a building, and a filler such as a grout material is filled between facing portions of the reinforcing steel plate and the column or wall. It relates to a reinforcing method .

この種の補強方法として、例えば特許文献１に示した従来の補強方法が知られている。この補強方法は、補強鋼板を柱や壁の既設体に対向させ、その対向間隔にグラウト材などの補強用充填材などを充填する構成にしている。
そして、上記のように補強用充填材を充填する際には、補強用充填材の充填圧で補強鋼板が既設の柱や壁から離れないようにするために、当該補強鋼板の周りを型枠で囲っていた。
なお、上記型枠は、補強用充填材が固まった段階で取り外されるものである。 As a reinforcing method of this type, for example, a conventional reinforcing method shown in Patent Document 1 is known. In this reinforcing method , a reinforcing steel plate is made to face an existing body of a pillar or wall, and a reinforcing filler such as a grout material is filled in the facing interval.
Then, when filling the reinforcing filler as described above, in order to prevent the reinforcing steel plate from being separated from the existing columns and walls by the filling pressure of the reinforcing filler, a mold is formed around the reinforcing steel plate. It was surrounded by.
The mold is removed when the reinforcing filler is solidified.

特許第３８６１０７９号公報Japanese Patent No. 3860791

上記のようにした従来の補強方法では、その施工時に型枠を用いなければならないが、この型枠を組み付けるために熟練者を必要とするとともに、組み付けのための作業時間も余計にかかるので、型枠を用いること自体が、かなりのコストアップ要因になっていた。
この発明の目的は、型枠を不要にした既設建造物の補強方法を提供することである。 In the conventional reinforcement method as described above, a formwork must be used at the time of construction, but an expert is required to assemble this formwork, and the work time for assembly also takes extra time, The use of the formwork itself has been a significant cost increase factor.
The objective of this invention is providing the reinforcement method of the existing building which made the formwork unnecessary.

第１の発明の補強方法は次の手順を実行する点に特徴を有する。すなわち、先ず、建造物の柱や壁等の既設体に対向して複数の型枠兼用補強鋼板を組む。そして、上記型枠兼用補強鋼板の外側から穴あけ工具を用いて、上記型枠兼用補強鋼板における貫通孔と上記既設体の固定穴とを同時に形成する。このときには、上記貫通孔の内径を支持ボルトの外径よりも大きくして、型枠兼用補強鋼板を支持ボルトの軸方向に相対移動可能にしておく。
このように固定穴を同時に形成したら、上記貫通孔から注入器を挿入するとともに、この注入器内の樹脂製接着剤を上記固定穴に充填する。さらに、上記貫通孔から支持ボルトを挿入するとともに、この支持ボルトの先端を、固定穴に充填した樹脂製接着剤中に押し入れて、上記樹脂製接着剤で上記支持ボルトの先端を上記既設体に固定する。
次に、上記型枠兼用補強鋼板と上記既設体との上記間隔にグラウト材等の補強用充填材を充填するとともに、このときの補強用充填材の充填圧で当該型枠兼用補強鋼板を上記支持ボルトに設けた位置決め部に接触させる。 The reinforcing method of the first invention is characterized in that the following procedure is executed. That is, first, a plurality of formwork and reinforcing steel plates are assembled facing an existing body such as a pillar or wall of a building. And the through-hole in the said form-frame and reinforcement steel plate and the fixing hole of the said existing body are formed simultaneously using the drilling tool from the outer side of the said form-frame and reinforcement steel plate. At this time, the inner diameter of the through-hole is made larger than the outer diameter of the support bolt so that the reinforcing steel plate for mold and frame can be relatively moved in the axial direction of the support bolt.
When the fixing hole is formed at the same time as described above, an injector is inserted from the through hole, and a resin adhesive in the injector is filled in the fixing hole. Further, the support bolt is inserted from the through hole, and the tip of the support bolt is pushed into the resin adhesive filled in the fixing hole, and the tip of the support bolt is attached to the existing body with the resin adhesive. Fix it.
Next, a reinforcing filler such as a grout material is filled in the gap between the reinforcing steel sheet for formwork and the existing body, and the reinforcing steel sheet for formwork is used with the filling pressure of the reinforcing filler at this time. Contact the positioning part provided on the support bolt .

第２の発明は、上記支持ボルトに設けた頭部を上記位置決め部にした点に特徴を有する。 The second invention is characterized in that the head provided on the support bolt is the positioning portion .

第３の発明は、上記貫通孔の外方に支持ボルトの先端を突出させるとともに、その支持ボルトの突出部に上記位置決め部としてのナットをネジ嵌めした点に特徴を有する。 The third invention is characterized in that the tip of the support bolt protrudes outward from the through hole, and the nut as the positioning portion is screwed into the protrusion of the support bolt .

第４の発明は、上記支持ボルトの突出部に、ナットの位置を特定するための位置決めマークを設けた点に特徴を有する。 The fourth invention is characterized in that a positioning mark for specifying the position of the nut is provided on the protruding portion of the support bolt .

第５の発明は、上記既設体と上記型枠兼用補強鋼板との間に、スペーサを設けた点に特徴を有する。 5th invention has the characteristics in the point which provided the spacer between the said existing body and the said formwork and reinforcement steel plate .

第１の発明によれば、既設体に対して間隔を保った型枠兼用補強鋼板をボルトで位置決めできるので、型枠兼用補強鋼板の位置決めのための型枠が不要になる。型枠が不要なので、型枠を組み付ける手間も省けるし、熟練者も必要なくなり、工期の短縮とコストダウンとを図ることができる。
また、支持ボルトに対して型枠兼用補強鋼板が相対移動可能なので、支持ボルトの位置決め部の位置さえ正確に決めておけば、型枠兼用補強鋼板は、補強用充填材の注入圧によって、既設体との対向間隔が自動的に定まる。
したがって、型枠兼用補強鋼板の組み付け時には、それらの位置をあらかじめ正確に設定しなくてもよく、その分、作業性が向上する。
さらに、型枠兼用補強鋼板を貫通した支持ボルトの先端を、樹脂製接着剤を充填した固定穴に押し込むだけで、支持ボルトを既設体に固定できるので、その作業性が非常によくなる。
また、型枠兼用補強鋼板の貫通孔と、既設体の固定穴とを同時に形成したので、既設体に固定穴をあらかじめ形成する必要がなく、しかも、型枠兼用補強鋼板に形成した貫通孔と、既設体に形成した固定穴との位置合わせの必要もなくなる。 According to the first aspect of the present invention, the mold-frame / reinforcement steel sheet that is spaced from the existing body can be positioned with the bolts, so that the form-frame for positioning the mold-frame / reinforcement steel sheet becomes unnecessary. Since the formwork is unnecessary, the labor for assembling the formwork can be saved, and the skilled person is not needed, so that the construction period can be shortened and the cost can be reduced.
In addition, since the reinforcing steel sheet for molds can be moved relative to the support bolts, the reinforcing steel sheets for molds can be installed by the injection pressure of the reinforcing filler as long as the positioning position of the supporting bolts is accurately determined. The distance between the body and the body is automatically determined.
Therefore, when assembling the reinforcing steel sheet for formwork, it is not necessary to set the positions accurately in advance, and workability is improved accordingly.
Furthermore, since the support bolt can be fixed to the existing body simply by pushing the tip of the support bolt that penetrates the reinforcing steel plate for both the formwork into the fixing hole filled with the resin adhesive, the workability becomes very good.
In addition, since the through hole of the reinforcing steel sheet for formwork and the fixing hole of the existing body are formed at the same time, it is not necessary to previously form the fixing hole in the existing body, and the through hole formed in the reinforcing steel sheet for formwork and Further, it is not necessary to align with the fixing hole formed in the existing body.

第２の発明によれば、支持ボルトの頭部を位置決め部にしているので、特別な位置決め部を設けなくてもよくなる。 According to the second invention, since the head portion of the support bolt is the positioning portion, it is not necessary to provide a special positioning portion.

第３の発明によれば、型枠兼用補強鋼板から外方に突出させた支持ボルトに、位置決め部としてのナットをネジ嵌めしたので、そのナットの位置に応じて、型枠兼用補強鋼板と既設体との対向間隔を調整できる。 According to the third invention, since the nut as the positioning portion is screw-fitted to the support bolt that protrudes outward from the steel sheet for both formwork and reinforcement, the steel sheet for both formwork and the existing steel sheet is installed according to the position of the nut. The distance between the body and the body can be adjusted.

第４の発明によれば、支持ボルトの突出部には、この突出部に嵌めたナットの位置を特定するための位置決めマークを設けたので、この位置決めマーク位置にナット止めておけば、型枠兼用補強鋼板と既設体との対向間隔を正確に特定できる。 According to the fourth aspect of the present invention, the protrusion of the support bolt is provided with the positioning mark for specifying the position of the nut fitted in the protrusion. The facing distance between the combined reinforcing steel plate and the existing body can be accurately specified .

第５の発明によれば、上記既設体と上記型枠兼用補強鋼板との間にスペーサを設けたので、型枠兼用補強鋼板と既設体との対向間隔は、このスペーサによって必然的に決められることになり、型枠兼用補強鋼板の組み付け作業が簡単になる。 According to the fifth aspect of the invention, since the spacer is provided between the existing body and the mold-frame reinforcing steel plate, the distance between the mold-frame reinforcing steel plate and the existing body is inevitably determined by the spacer. As a result, the work of assembling the formwork and reinforcing steel sheet is simplified.

図１は第１実施形態の要部の断面図である。FIG. 1 is a cross-sectional view of a main part of the first embodiment. 図２は参考例の要部の断面図である。FIG. 2 is a cross-sectional view of the main part of a reference example . 図３は第２実施形態の要部の断面図である。FIG. 3 is a cross-sectional view of a main part of the second embodiment. 図４は第２実施形態の支持ボルトの側面図である。FIG. 4 is a side view of the support bolt of the second embodiment.

図１に示した第１実施形態は、建造物の柱や壁等の既設体１に対向して複数の型枠兼用補強鋼板２を組み、これら型枠兼用補強鋼板と既設体１との間に所定の間隔を保つ。
ただし、このときに、上記型枠兼用補強鋼板２と既設体１との間にスペーサ３を設け、それらの間隔がスペーサ３の長さ分に保たれるようにしている。 In the first embodiment shown in FIG. 1, a plurality of formwork / reinforcement steel plates 2 are assembled facing an existing body 1 such as a pillar or wall of a building, and between these formwork / reinforcement steel plates and the existing body 1. Keep a predetermined interval.
However, at this time, a spacer 3 is provided between the above-mentioned reinforcing steel plate for both formwork 2 and the existing body 1 so that the distance between them is maintained by the length of the spacer 3.

上記のようにスペーサ３を介在させつつ型枠兼用補強鋼板２を既設体１に対向させた状態で、例えばドリル等の穴あけ工具を用いて、型枠兼用補強鋼板２の外側から貫通孔４を形成するとともに、この貫通孔４から上記対向間隔内に突出した穴あけ工具の先端を既設体１の位置まで到達させ、その位置において当該穴あけ工具を用いて既設体１に固定穴５を形成する。   As described above, with the spacer 3 interposed, the mold / combination reinforcing steel plate 2 is opposed to the existing body 1 and, for example, using a drilling tool such as a drill, the through hole 4 is formed from the outside of the mold / combination reinforcing steel plate 2. At the same time, the tip of the drilling tool protruding from the through hole 4 within the above-described interval is made to reach the position of the existing body 1, and the fixing hole 5 is formed in the existing body 1 using the drilling tool at that position.

固定穴５を上記のようにして形成したら、上記貫通孔４から図示していない注入器の先端を挿入するとともに、この注入器内の樹脂製接着剤６を上記固定穴５に充填する。
そして、この発明の位置決め部である頭部７ａを設けた支持ボルト７を、上記貫通孔４から挿入するとともに、その先端を、固定穴５に充填した樹脂製接着剤６内に押し込み、その樹脂製接着剤６で支持ボルト７の先端を固定する。 When the fixing hole 5 is formed as described above, the tip of an injector (not shown) is inserted from the through hole 4 and the resin adhesive 6 in the injector is filled into the fixing hole 5.
And while inserting the support bolt 7 which provided the head part 7a which is a positioning part of this invention from the said through-hole 4, the front-end | tip is pushed in into the resin adhesive 6 with which the fixing hole 5 was filled, and the resin The tip of the support bolt 7 is fixed with an adhesive 6.

このとき、スペーサ３で既設体１との間で間隔を保たれた型枠兼用補強鋼板２に、支持ボルト７の頭部７ａを接触させるようにする。
したがって、型枠兼用補強鋼板２と既設体１との間にスペーサ３を介在させていなくても、上記頭部７ａを所定の位置に保持しておけば、型枠兼用補強鋼板２を頭部７ａに接触させて、型枠兼用補強鋼板２と既設体１との間を目的の間隔に保つことができる。 At this time, the head 7 a of the support bolt 7 is brought into contact with the reinforcing steel plate 2 for both the formwork and the spacer 3, which is spaced from the existing body 1.
Therefore, even if the spacer 3 is not interposed between the reinforcing steel sheet 2 for both the formwork and the existing body 1, the reinforcing steel sheet 2 for both the formwork can be used as long as the head 7a is held in a predetermined position. 7a can be kept in contact with the formwork and reinforcing steel plate 2 and the existing body 1 at a desired distance.

なお、上記貫通孔４は、その内径を支持ボルト７の外径よりも少し大きくし、型枠兼用補強鋼板２が、支持ボルト７の軸方向に相対移動可能にしている。   Note that the inner diameter of the through-hole 4 is slightly larger than the outer diameter of the support bolt 7, so that the mold and reinforcing steel plate 2 is relatively movable in the axial direction of the support bolt 7.

そして、支持ボルト７の先端を固定穴５内に固定するときに頭部７ａを所定の位置に保っておけば、型枠兼用補強鋼板２と既設体１との対向間隔にグラウト材等の補強用充填材８を充填したとき、そのときの補強用充填材８の充填圧で、型枠兼用補強鋼板２が上記頭部７ａの位置まで移動し、当該型枠兼用補強鋼板２を頭部７ａに接触したところで位置決めすることができる。
なお、図中符号９はワッシャーで、頭部７ａと型枠兼用補強鋼板２との間に介在させるものである。 And if the head 7a is kept at a predetermined position when the tip of the support bolt 7 is fixed in the fixing hole 5, the reinforcement such as a grout material is provided at the facing interval between the form-stiffened reinforcing steel plate 2 and the existing body 1. When the filling material 8 is filled, the mold / combination reinforcing steel plate 2 is moved to the position of the head 7a by the filling pressure of the reinforcing filler 8 at that time, and the mold / combination reinforcing steel plate 2 is moved to the head 7a. It can be positioned when it touches.
In addition, the code | symbol 9 is a washer in the figure, and is interposed between the head 7a and the reinforcement steel plate 2 for a formwork.

上記のようにした型枠兼用補強鋼板２は、複数の型枠兼用補強鋼板２を順に積み上げていくもので、それらを積み上げた状態で、型枠兼用補強鋼板２と既設体１との間に間隔を保持する。このときには、型枠兼用補強鋼板２と既設体１との対向間隔に複数のスペーサ３を介在させておく。   The mold / combination reinforcing steel plate 2 is formed by sequentially stacking a plurality of mold / combination reinforcing steel plates 2 in a state where they are stacked, and between the mold-combination reinforcing steel plate 2 and the existing body 1. Hold the interval. At this time, a plurality of spacers 3 are interposed in the facing interval between the reinforcing steel plate 2 for both the formwork and the existing body 1.

上記のようにして複数の型枠兼用補強鋼板２を積み上げる過程で、各型枠兼用補強鋼板２にドリル等の穴あけ工具を用いて貫通孔４を形成するとともに、その穴あけ工具で既設体１に固定穴５も同時に形成する。
固定穴５を上記のようにして形成したら、今度は、樹脂製接着剤６を入れた注入器の注入口を貫通孔４から挿入して、上記固定穴５に樹脂製接着剤６を充填する。 In the process of stacking a plurality of formwork / reinforced steel sheets 2 as described above, through holes 4 are formed in each formwork / reinforced steel sheet 2 using a drilling tool such as a drill, and the existing body 1 is formed with the drilling tool. The fixing hole 5 is also formed at the same time.
When the fixing hole 5 is formed as described above, the injection port of the injector containing the resin adhesive 6 is inserted through the through hole 4 and the resin adhesive 6 is filled in the fixing hole 5. .

そして、貫通孔４から挿入した支持ボルト７を挿入するとともに、その先端を固定穴５に充填した樹脂製接着剤６に押し込み、支持ボルト７の先端を固定穴５内に固定する。
固定穴５内の樹脂製接着剤６が完全に固まったら、型枠兼用補強鋼板２と既設体１との間に上記補強用充填材８を充填する。このとき、貫通孔４と支持ボルト７との間に隙間が形成されているが、上記したようにワッシャー９を設けているので、補強用充填材８が貫通孔４から漏れ出ることはない。 And while inserting the support bolt 7 inserted from the through-hole 4, the front-end | tip is pushed into the resin adhesive 6 with which the fixing hole 5 was filled, and the front-end | tip of the support bolt 7 is fixed in the fixing hole 5. FIG.
When the resin adhesive 6 in the fixing hole 5 is completely hardened, the reinforcing filler 8 is filled between the mold-frame reinforcing steel plate 2 and the existing body 1. At this time, a gap is formed between the through hole 4 and the support bolt 7, but since the washer 9 is provided as described above, the reinforcing filler 8 does not leak from the through hole 4.

上記のようにして型枠兼用補強鋼板２と既設体１との対向間隔に補強用充填材８を充填した後には、この型枠兼用補強鋼板２の表面に、例えば靭性を保った帯状連続シートを貼り付けるとともに、その帯状連続シートの上にさらに仕上げ材を塗布する。ただし、帯状連続シートを貼り付けずに、当該型枠兼用補強鋼板２に直接仕上げ材を塗布してもよい。
いずれにしても、上記型枠兼用補強鋼板２は、それが取り除かれず、そのまま補強鋼板として既設体１と一体化され、建造物に対して補強部材として機能する。 After the reinforcing filler 8 is filled into the facing distance between the mold-purpose reinforcing steel plate 2 and the existing body 1 as described above, a continuous belt-like sheet that maintains, for example, toughness on the surface of the mold-purpose reinforcing steel plate 2 And a finishing material is further applied on the continuous belt-like sheet. However, you may apply | coat a finishing material directly to the said formwork and reinforcing steel plate 2 without affixing a strip | belt-shaped continuous sheet.
In any case, the above-mentioned reinforcing steel plate for formwork 2 is not removed but is integrated as it is with the existing body 1 as a reinforcing steel plate, and functions as a reinforcing member for the building.

なお、上記実施形態では、固定穴５を貫通孔４と同時に形成するようにしたが、貫通孔４と固定穴５とを別々に形成し、型枠兼用補強鋼板２を積み上げていくときに、それら貫通孔４と固定穴５との位置を合わせて、両者を対応させるようにしてもよい。   In the above embodiment, the fixing hole 5 is formed at the same time as the through hole 4. However, when the through hole 4 and the fixing hole 5 are formed separately and the reinforcing steel plates 2 for both the formwork are stacked, You may make it match | combine the position of these through-holes 4 and the fixing holes 5, and may match both.

図２に示した参考例は、既設体１に雌ネジ部材１０をあらかじめ埋め込み、貫通孔４から挿入した支持ボルト７の先端に形成した雄ネジ部７ｂを、上記雌ネジ部材１０にネジ止めするものである。
したがって、この参考例では、型枠兼用補強鋼板２を積み上げていくときに、その貫通孔４と雌ネジ部材１０とを対応させておかなければならない。 In the reference example shown in FIG. 2, the female screw member 10 is embedded in the existing body 1 in advance, and the male screw portion 7 b formed at the tip of the support bolt 7 inserted from the through hole 4 is screwed to the female screw member 10. Is.
Therefore, in this reference example , when stacking the formwork and reinforcing steel plates 2, the through holes 4 and the female screw members 10 must correspond to each other.

図３，４に示した第２実施形態は、支持ボルト７を第１実施形態と相違させたもので、その他の構成は、第１実施形態と同じである。
すなわち、第２実施形態の支持ボルト７は、型枠兼用補強鋼板２の貫通孔４から外方に突出する突出部７ｃに雄ネジを形成し、この突出部７ｃの雄ネジに、この発明の位置決め部であるナット１１をネジ止めしたものである。 In the second embodiment shown in FIGS. 3 and 4, the support bolt 7 is different from that of the first embodiment, and other configurations are the same as those of the first embodiment.
That is, the support bolt 7 of the second embodiment forms a male screw on the protruding portion 7c protruding outward from the through hole 4 of the reinforcing steel plate 2 also serving as a formwork, and the male screw of the protruding portion 7c A nut 11 as a positioning portion is screwed.

しかも、支持ボルト７の突出部７ｃには、図４に示すように、位置決めマーク１２を表示し、この位置決めマーク１２のところにナット１１を位置させることによって、第１実施形態の頭部７ａと同じ位置決め機能が発揮されるようにしている。   In addition, as shown in FIG. 4, a positioning mark 12 is displayed on the protruding portion 7 c of the support bolt 7, and the nut 11 is positioned at the positioning mark 12, so that the head 7 a of the first embodiment is The same positioning function is exhibited.

なお、この第２実施形態では、上記のようにナット１１を位置決めマーク１２のところに位置させることによって、型枠兼用補強鋼板２の間隔を保つようにしたので、スペーサ３を用いなくても、当該型枠兼用補強用鋼板２の位置を保つことができる。
ただし、この第２実施形態においても、スペーサ３を用いてもよいことは当然である。 In the second embodiment, the nut 11 is positioned at the position of the positioning mark 12 as described above, so that the interval between the reinforcing steel sheets 2 for both the formwork and the spacer 3 is not used. The position of the steel sheet 2 for reinforcing a formwork can be maintained.
However, as a matter of course, the spacer 3 may also be used in the second embodiment.

既存の建造物を補強するのに最適である。   Ideal for reinforcing existing buildings.

１ 既設体
２ 型枠兼用補強鋼板
３ スペーサ
４ 貫通孔
５ 固定穴
６ 樹脂製接着剤
７ 支持ボルト
７ｃ 突出部
８ 補強用充填材
１０ 雌ネジ部材
１１ ナット
１２ 位置決めマーク DESCRIPTION OF SYMBOLS 1 Existing body 2 Reinforcing steel plate for formwork 3 Spacer 4 Through hole 5 Fixing hole 6 Resin adhesive 7 Support bolt 7c Protruding part 8 Reinforcing filler 10 Female screw member 11 Nut 12 Positioning mark

Claims (5)

建造物の柱や壁等の既設体に対向して複数の型枠兼用補強鋼板を組み、
上記型枠兼用補強鋼板の外側から穴あけ工具を用いて、上記型枠兼用補強鋼板における貫通孔と上記既設体における固定穴とを同時に形成するとともに、上記貫通孔の内径を支持ボルトの外径よりも大きくして、型枠兼用補強鋼板を支持ボルトの軸方向に相対移動可能にし、
さらに上記貫通孔から挿入した注入器の先端を上記固定穴に挿入するとともに、この注入器内の樹脂製接着剤を上記固定穴に充填し、
この固定穴に充填した上記樹脂製接着剤中に上記貫通孔を貫通した上記支持ボルトの先端を押し入れて、上記樹脂製接着剤で上記支持ボルトの先端を上記既設体に固定し、
上記型枠兼用補強鋼板と上記既設体との上記間隔にグラウト材等の補強用充填材を充填するとともに、
このときの補強用充填材の充填圧で当該型枠兼用補強鋼板を上記支持ボルトに設けた位置決め部に接触させる既設建造物の補強方法。 Combining multiple formwork and reinforcing steel plates facing existing structures such as pillars and walls of buildings ,
Using a drilling tool from the outside of the steel sheet for both formwork and reinforcement, simultaneously forming a through hole in the steel sheet for both formwork and reinforcement and a fixing hole in the existing body, and the inner diameter of the through hole from the outer diameter of the support bolt To make the steel plate that is also used as a formwork relatively movable in the axial direction of the support bolt,
Furthermore, while inserting the tip of the injector inserted from the through hole into the fixing hole, the resin adhesive in the injector is filled into the fixing hole,
Pushing the tip of the support bolt penetrating the through hole into the resin adhesive filled in the fixing hole, fixing the tip of the support bolt to the existing body with the resin adhesive ,
While filling a reinforcing filler such as a grout material in the gap between the above- mentioned reinforcing steel sheet for both formwork and the existing body ,
A method for reinforcing an existing building , wherein the reinforcing steel plate for both formwork and the positioning portion provided on the support bolt is brought into contact with the filling pressure of the reinforcing filler at this time . 上記支持ボルトに設けた頭部を上記位置決め部にした請求項１に記載の既設建造物の補強方法。 Already設建creation method of the reinforcement according to claim 1, wherein the head portion provided on said support bolt and to the positioning unit. 上記貫通孔の外方に支持ボルトの先端を突出させるとともに、その突出させた支持ボルトの突出部に上記位置決め部としてのナットをネジ嵌めしてなる請求項１に記載の既設建造物の補強方法。 Are made to protrude from the distal end of the support bolt outwardly of the through hole, the reinforcing already設建creation according nuts as the positioning portion to the protrusion of the protruded so support bolt in claim 1 formed by fitting screws Way . 上記支持ボルトの突出部には、ナットの位置を特定するための位置決めマークを設けた請求項３に記載の既設建造物の補強方法。 The projecting portion of the support bolt, already設建creation method of the reinforcement according to claim 3 in which a positioning mark for determining the position of the nut. 上記既設体と上記型枠兼用補強鋼板との間にスペーサを介在させた請求項１〜４のいずれかに記載の既設建造物の補強方法。 Already設建creation method of the reinforcement according to any one of claims 1 to 4, the spacer is interposed between the existing body and the mold serves reinforcing steel.
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