JP2000336944A - High-durable structure buried type formwork method - Google Patents
High-durable structure buried type formwork methodInfo
- Publication number
- JP2000336944A JP2000336944A JP11152235A JP15223599A JP2000336944A JP 2000336944 A JP2000336944 A JP 2000336944A JP 11152235 A JP11152235 A JP 11152235A JP 15223599 A JP15223599 A JP 15223599A JP 2000336944 A JP2000336944 A JP 2000336944A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- long nut
- nut member
- screwed
- section
- 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.)
- Granted
Links
Landscapes
- Bridges Or Land Bridges (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高耐久性構造埋設
型枠工法に係り、特に床版、スラブ、橋脚、その他コン
クリート構造物の劣化部を補修して補強する高耐久性構
造埋設型枠工法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of burying a highly durable structure, and more particularly to a method of burying a highly durable structure which repairs and reinforces a slab, a slab, a pier, and other deteriorated portions of a concrete structure. Concerning the construction method.
【０００２】[0002]
【従来の技術】例えば海洋に懸かる床版橋のコンクリー
ト床版あるいはその下面のコンクリート製梁等の下面
は、経年によりコンクリートが劣化して所要の強度が低
下することがあり、したがって適時に補修を行なって補
強することが必要となる。2. Description of the Related Art For example, the concrete floor of a deck bridge or a lower surface of a concrete beam on the lower surface of a deck slab hanging on the ocean may deteriorate with aging and the required strength may be reduced. It is necessary to reinforce it.
【０００３】このような橋梁の下面の補修には、従来図
７にコンクリート床版１の下面を補修する場合を示すよ
うに、水中に建て込まれた支柱２，２…間に梁材３を懸
け渡して足場４を構築し、この足場４上からコンクリー
ト床版１の下面の劣化部をハツリにより削落したのち前
記梁材３上に多数本の仮柱５，５…を設立して支保工を
組み、仮柱５，５…の上端に型枠６を保持してこの型枠
６とコンクリート床版１の下面のハツリ面との間にモル
タル等の充填材７を充填し、その硬化を待って仮柱５，
５…および型枠６を撤去したのちその補修面に鋼板、炭
素繊維、アラミド繊維などの補強材を付設し、これに防
水塗装を行なって補修を完了するようになされている。In order to repair the lower surface of such a bridge, as shown in FIG. 7 which shows a case where the lower surface of the concrete floor slab 1 is repaired, a beam member 3 is interposed between columns 2, 2,. A scaffold 4 is constructed by suspending the scaffold 4. A deteriorated portion of the lower surface of the concrete floor slab 1 is scraped off from the scaffold 4 with a razor, and then a large number of temporary pillars 5, 5. , And a filler 6 such as mortar is filled between the form 6 and the bottom surface of the concrete floor slab 1 by holding the form 6 at the upper ends of the temporary columns 5, 5,. Wait for the temporary column 5,
After removing the mold 5 and the mold 6, a reinforcing material such as a steel plate, carbon fiber, or aramid fiber is attached to the repaired surface, and waterproofing is performed on the reinforcing material to complete the repair.
【０００４】前記支柱２，２…を使用しない場合は、コ
ンクリート床版１の下面の梁８，８の側面にブラケット
を取り付け、これらブラケット間に梁材を懸け渡して支
保工を組み、この梁材上に型枠を保持して前記と同様に
モルタルを充填するようになされている。When the above-mentioned columns 2, 2,... Are not used, brackets are attached to the side surfaces of the beams 8, 8 on the lower surface of the concrete slab 1, and beam members are suspended between these brackets to assemble supports. The mortar is filled in the same manner as described above while holding the mold on the material.
【０００５】またコンクリート床版１の梁８の部分の補
修には、図８にその一部を示すように、前記と同様にし
て架設された足場上から梁８の鉄筋９，９が露出するま
でハツリ、次いで仮柱５，５…により支保工を組んで型
枠６，６ａを保持し、この型枠６，６ａとハツリ面との
間にモルタルを充填するようになされている。[0005] In repairing the beam 8 portion of the concrete floor slab 1, as shown in FIG. 8, the reinforcing bars 9, 9 of the beam 8 are exposed from the scaffold erected in the same manner as described above. , And the temporary columns 5, 5,... Are used to hold the formwork 6, 6a, and the mortar is filled between the formwork 6, 6a and the filet surface.
【０００６】[0006]
【発明が解決しようとする課題】しかるに上記従来の補
修工法では、補修用の充填材（モルタル）の重量を支え
るに足る高強度の支保工を立ち上げるように組み立てる
必要があることから、これらに要する大型でかつ重量の
大きい資材の搬入、組み立て、搬出を要し、そのため予
備的作業が容易でないものであった。However, in the above-mentioned conventional repairing method, it is necessary to assemble a high-strength support enough to support the weight of the filler (mortar) for repair. It required carrying in, assembling, and unloading the necessary large and heavy materials, which made preliminary work difficult.
【０００７】また小面積の補修であっても前述の支保工
を組まなければならないためコスト高になり、きわめて
不経済であった。このほか補修用充填材は水分が８％以
下での施工となるので、乾燥期間を必要とし、脱型枠ま
でに長期間を要することになって工期が長びくという問
題があり、さらに海洋構造物の場合、潮位により作業時
間が拘束されるため、この点からも工期が長くなるなど
の種々の問題点があった。[0007] Further, even for repairing a small area, the above-mentioned support work must be assembled, which increases the cost and is extremely uneconomical. In addition, since the repairing filler material has a moisture content of 8% or less, it requires a drying period and a long period of time until the demolding frame, which increases the construction period. In this case, since the work time is restricted by the tide, there are various problems such as a longer construction period.
【０００８】本発明は上記従来の技術の諸問題を解決す
ることを課題としてなされたもので、作業用の足場のみ
を確保することによりすべての作業ができ、かつ型枠の
撤去を不要として工期の大幅な短縮を図り、低コストで
の補修施工を可能とする高耐久性構造埋設型枠工法を提
供するものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and all works can be performed by securing only a work scaffold, and the formwork is not required to be removed. The present invention aims to provide a method of burying a highly durable buried formwork, which can significantly reduce the time required for repair work.
【０００９】[0009]
【課題を解決するための手段】上記課題を解決する手段
として本発明は、補修すべきコンクリート構造物の劣化
部を削落し、該コンクリート構造物の劣化部削落面にス
クリューアンカーをその一端が該削落面から若干突出す
るよう抜出不能に埋設し、このスクリューアンカーの突
出端に長ナット部材の一半部を螺合してその長ナット部
材の他半部に支持用スクリューの一端を螺挿し、この支
持用スクリューに炭素繊維内蔵セメントモルタル複合板
を挿通するとともにこれを支える支持部材を挿通してナ
ットで固定したのち前記コンクリート構造物の劣化部削
落面と前記複合板との間にモルタル等の充填材を充填
し、充填材の硬化後支持用スクリューを長ナット部材か
ら外して前記支持部材を撤去し、これに代えて固定用ボ
ルトを長ナット部材に螺挿締着して前記複合板を固定す
ることを特徴とする。As a means for solving the above-mentioned problems, the present invention removes a deteriorated portion of a concrete structure to be repaired, and attaches a screw anchor to a cut surface of the deteriorated portion of the concrete structure. One half of the long nut member is screwed into the projecting end of the screw anchor, and one end of the support screw is screwed into the other half of the long nut member so as to protrude slightly from the cut surface. After inserting the carbon fiber built-in cement mortar composite plate into this support screw and inserting the support member that supports it and fixing it with a nut, between the deteriorated part scraped surface of the concrete structure and the composite plate After filling the filler such as mortar, after the filler is cured, the support screw is removed from the long nut member and the support member is removed, and a fixing bolt is replaced with a long nut member. And threadedly 挿締 wear, characterized in that to fix the composite plate.
【００１０】こうしたことにより、充填材を支えるため
の大掛りな支保工を立ち上げる必要がないとともに充填
材の硬化の待ち時間が不要となり、脱型枠作業も不要と
なって大幅な工期の短縮およびコストダウンを図ること
ができる。[0010] As a result, it is not necessary to start a large-scale support for supporting the filler, and the waiting time for the curing of the filler is not required. In addition, cost can be reduced.
【００１１】上記炭素繊維内蔵セメントモルタル複合板
を構成する炭素繊維シートにアクリル弾性塗装（または
ウレタン系、フッソ系樹脂塗料による塗装）を施せば、
美感および耐候性を高めるうえで好ましい。If the carbon fiber sheet constituting the carbon fiber-containing cement mortar composite board is subjected to acrylic elastic coating (or coating with urethane-based or fluorine-based resin paint),
It is preferable for enhancing aesthetics and weather resistance.
【００１２】[0012]
【発明の実施の形態】以下、本発明を図面に示す実施の
形態を参照し、図７、図８と共通する部材にはこれと同
一符号を用いて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the embodiments shown in the drawings by using the same reference numerals for members common to FIGS.
【００１３】図１（Ａ），（Ｂ）および図２は、コンク
リート床版橋の下面の補修を想定した場合の一実施形態
を示すもので、図１（Ａ），（Ｂ）は補修作業工程途中
の状態を、図２は補修作業終了時の状態をそれぞれ一部
の断面図として示している。FIGS. 1A, 1B and 2 show an embodiment in which repair of the lower surface of a concrete floor slab is assumed. FIGS. 1A and 1B show repair work. FIG. 2 is a partial cross-sectional view showing a state during the process and FIG. 2 showing a state at the time of completion of the repair work.
【００１４】上記補修作業の工程としては、まず補修す
べき対象であるコンクリート床版１の下面の劣化してい
る部分のコンクリートを「ハツリ」により内部の鉄筋
９，９が一部露出するまで削落し、その削落面１ａに穿
孔機により穴１０を１ｍピッチ程度の間隔をおいて穿設
し、これに所要長さのスクリューアンカー１１をその下
端が若干下方に突出する深さまで挿入し、この穴１０と
スクリューアンカー１１との間に樹脂接着剤１２（ケミ
カルアンカー）を充填固化させることにより抜出不能に
埋設する。このスクリューアンカー１１としては全長に
わたってネジを有する全ネジ構造のものを用いることが
既設コンクリートとの結合を強化するうえで好ましい。
また削落により露出した部分の鉄筋９，９の外周面には
防錆ペースト１３を塗布して防錆策を施す。In the repairing process, first, the degraded portion of the concrete on the lower surface of the concrete slab 1 to be repaired is cut with a razor until the internal reinforcing bars 9, 9 are partially exposed. A hole 10 is drilled in the shaved surface 1a with a punch at an interval of about 1 m pitch, and a screw anchor 11 having a required length is inserted into the hole 10 to a depth at which the lower end thereof projects slightly downward. A resin adhesive 12 (chemical anchor) is filled and solidified between the hole 10 and the screw anchor 11 so that the resin adhesive 12 cannot be removed. As the screw anchor 11, it is preferable to use an all-screw structure having a screw over the entire length in order to strengthen the connection with the existing concrete.
A rust preventive measure is applied by applying a rust preventive paste 13 on the outer peripheral surfaces of the reinforcing bars 9, 9 exposed by the shaving.
【００１５】次いで前記スクリューアンカー１１の下端
の突出端部に図１（Ａ）に示すように長ナット部材１４
の一半部を螺合し、この長ナット部材１４の他半部に図
１（Ｂ）に示すように支持用スクリュー１５の上端を螺
挿する。Next, as shown in FIG. 1A, a long nut member 14 is attached to the projecting end of the lower end of the screw anchor 11.
And the upper end of the support screw 15 is screwed into the other half of the long nut member 14 as shown in FIG. 1 (B).
【００１６】上記支持用スクリュー１５にワッシャ１
６、永久型枠として機能する炭素繊維内蔵セメントモル
タル複合板１７（以下単に複合板という）、桟木１８、
チャンネル鋼材等で支保工として機能する支持部材１９
の順に挿通し、最後にワッシャ２０を介してナット２１
で締着する（図１（Ｂ））。A washer 1 is attached to the supporting screw 15.
6. Cement mortar composite board 17 incorporating carbon fiber functioning as a permanent form (hereinafter simply referred to as composite board), pier 18,
Support member 19 functioning as a support with channel steel etc.
And finally the nut 21 through the washer 20
(FIG. 1B).
【００１７】これによりコンクリート床版１の下面の削
落面１ａと複合板１７との間に前記鉄筋９，９が内在す
る空隙２２（空隙高さは１３０ｍｍ程度）が形成され、
この空隙２２内にモルタル等の充填材２３を充填する。
したがって前記鉄筋９，９はもとよりスクリューアンカ
ー１１の突出端、長ナット部材１４、ワッシャ１６は、
すべて充填材２３内に埋設される。As a result, a gap 22 (having a gap height of about 130 mm) in which the reinforcing bars 9, 9 are present is formed between the scraped surface 1a on the lower surface of the concrete floor slab 1 and the composite plate 17.
The space 22 is filled with a filler 23 such as mortar.
Therefore, the protruding end of the screw anchor 11, the long nut member 14, and the washer 16 as well as the reinforcing bars 9, 9 are provided.
All are buried in the filler 23.
【００１８】前記空隙２２に充填された充填材２３（モ
ルタル）の硬化を待って支持用スクリュー１５に螺合さ
れているナット２１を外し、ワッシャ２０、支持部材１
９、桟木１８を順次抜き取ったのち図２のように前記長
ナット部材１４に固定用ボルト２４をワッシャ２５を介
在して締着することにより複合板１７は充填材２３に密
着した状態で固定され、補修を完了する。After the filling material 23 (mortar) filled in the space 22 is hardened, the nut 21 screwed to the support screw 15 is removed, and the washer 20 and the support member 1 are removed.
9. After the barges 18 are sequentially removed, the composite plate 17 is fixed in a state in which the composite plate 17 is in close contact with the filler 23 by tightening a fixing bolt 24 to the long nut member 14 with a washer 25 interposed therebetween as shown in FIG. Complete the repair.
【００１９】前記複合板１７としては、図３に平面図を
示すように例えば長辺Ｌ１ の長さ１８００ｍｍ、短辺
Ｌ２ の長さ９００ｍｍの矩形板状に形成され、図４に
拡大断面図を示すようにセメントモルタル製の基板２６
（厚さ４ｍｍ程度）の一面にこれと同大の炭素繊維シー
ト２７（厚さ０．７〜１．０ｍｍ程度）を接着等の手段
により固着し、その外面にアクリル弾性塗装２８（厚さ
１ｍｍ程度）が施され、また基板２６の他面には充填材
２３との接着強度を出すためガラス繊維２９（厚さ０．
３ｍｍ）が積層され、さらにその表面に必要により下地
調整材３０が塗布されたものが用いられる。なおこの複
合板１７は工場において製造される。[0019] Examples of composite plate 17, the length 1800mm for example the long sides L 1 as shown in the plan view of FIG. 3, is formed in a rectangular plate-shaped length 900mm short side L 2, enlarged sectional view of FIG. 4 As shown in the figure, a substrate 26 made of cement mortar
A carbon fiber sheet 27 (approximately 0.7 to 1.0 mm thick) of the same size is fixed to one surface (approximately 4 mm thick) by bonding or the like, and an acrylic elastic coating 28 (1 mm thick) is applied to the outer surface thereof. ), And glass fibers 29 (with a thickness of 0.1 mm) are provided on the other surface of the substrate 26 in order to increase the adhesive strength with the filler 23.
3 mm) are laminated, and the surface thereof is coated with a base adjustment material 30 as necessary. The composite plate 17 is manufactured in a factory.
【００２０】前記基板２６、炭素繊維シート２７、およ
びガラス繊維２９はアクリル弾性塗装２８および下地調
整材３０の塗布面より四辺が幅１００ｍｍ程度大きく、
この部分が接着代３１とされており、隣位の複合板１７
との接合時に図５に示すように該接着代３１に跨がるよ
う現場で接続用炭素繊維シート３２を重ねて接着するこ
とにより継ぎ目を覆い、その上にアクリル弾性塗装３３
を塗布して接続部を施工する。このアクリル弾性塗装に
代え、ウレタン系塗料、フッソ樹脂系塗料であってもよ
く、美感および耐候性の向上を図ることができるもので
あればよい。The substrate 26, the carbon fiber sheet 27, and the glass fiber 29 have four sides larger than the application surface of the acrylic elastic coating 28 and the base adjustment material 30 by about 100 mm in width.
This portion is used as the bonding allowance 31, and the adjacent composite plate 17
At the time of joining, as shown in FIG. 5, the connecting carbon fiber sheet 32 is overlapped and adhered on site so as to straddle the bonding allowance 31 to cover the joint, and the acrylic elastic coating 33
Is applied to form the connection. Instead of the acrylic elastic coating, a urethane-based coating or a fluorine resin-based coating may be used, as long as it can improve the beauty and weather resistance.
【００２１】炭素繊維シート２７は、１方向繊維、直交
する２方向クロス繊維のいずれであってもよく、また基
板２６は曲げに対しても表面にひび割れを生じない曲げ
強度および剪断強度を有するものがよい。なお図１、図
２において符号３４は、補修施工前において削落面１ａ
に滲透させる浸透性防錆剤浸透域を示している。The carbon fiber sheet 27 may be a unidirectional fiber or an orthogonal two-way cross fiber, and the substrate 26 has a bending strength and a shearing strength which do not cause cracks on the surface even when bending. Is good. In FIGS. 1 and 2, reference numeral 34 denotes a cut surface 1a before the repair work.
The figure shows a permeation area of a permeable rust preventive agent that allows seepage through.
【００２２】図６はコンクリート床版１の下面の梁８の
下面から側面にかけて補修を行なう場合の一例を示す一
部の断面図を示すもので、梁８の下部のコンクリートの
劣化した部分を鉄筋９，９が露出するまで削落し、前記
コンクリート床版１の場合と同様にして複合板１７を取
り付ける。隣位の複合板１７との接続は接続用炭素繊維
シート３２を用いて接続する。FIG. 6 is a partial cross-sectional view showing an example of the case where repair is performed from the lower surface to the side surface of the beam 8 on the lower surface of the concrete floor slab 1. The composite board 17 is attached in the same manner as in the case of the concrete slab 1 by scraping off until 9, 9 is exposed. The connection with the adjacent composite board 17 is performed using the connection carbon fiber sheet 32.
【００２３】梁８の場合は下面から側面にかけて補修す
ることになるので、その角部では複合板１７を９０゜屈
曲させ、削落面１ａと複合板１７との間の空隙に充填材
２３を充填するようにすればよい。また複合板１７同士
の接合部は図５で示したと同様にして施工すればよい。In the case of the beam 8, since the repair is performed from the lower surface to the side surface, the composite plate 17 is bent by 90 ° at its corner, and the filler 23 is filled in the gap between the cut surface 1a and the composite plate 17. What is necessary is just to fill it. The joint between the composite plates 17 may be constructed in the same manner as shown in FIG.
【００２４】[0024]
【発明の効果】以上説明したように本発明によれば、型
枠を保持するための支保工を組み上げる必要がなく、補
修対象のコンクリート構造物自体に保持させて施工する
ので、従来のような大掛りな足場が不要となり、作業者
による作業用足場のみ確保すればよいことと補修面積に
応じた範囲のみ作業用足場を組めばよいことによって足
場の架設に要する経費が著しく廉価にでき、また型枠を
撤去する必要がなく、これらにより安価で短かい工期で
の補修作業を行なうことができる。As described above, according to the present invention, there is no need to assemble a shoring for holding the formwork, and the work is carried out while being held on the concrete structure itself to be repaired. Extensive scaffolds are not required, and only the work scaffolds for the workers need to be secured and the work scaffolds can be assembled only in a range corresponding to the repair area, so that the cost required for erection of the scaffold can be significantly reduced, and There is no need to remove the formwork, which makes it possible to perform repair work inexpensively and with a short construction period.
【００２５】さらに型枠としての複合板の下に支保がな
いので作業用スペースを十分にとることができ、海洋構
造物であっても潮位に関係なく作業を進めることができ
る利点がある。Further, since there is no support under the composite plate as a formwork, a sufficient working space can be secured, and even if the structure is an offshore structure, there is an advantage that the work can proceed regardless of the tide level.
【図１】（Ａ），（Ｂ）は本発明をコンクリート床版の
下面の補修に実施する場合の工程の一形態を示す一部の
断面図。1 (A) and 1 (B) are partial cross-sectional views showing one embodiment of a process when the present invention is applied to repair of a lower surface of a concrete floor slab.
【図２】同、補修完了時の状態を示す一部の断面図。FIG. 2 is a partial cross-sectional view showing a state at the time of completion of the repair.
【図３】図１において用いる炭素繊維内蔵セメントモル
タル複合板の一形態を示す平面図。FIG. 3 is a plan view showing one embodiment of a carbon fiber-containing cement mortar composite plate used in FIG.
【図４】図３のＡ−Ａ拡大断面図。FIG. 4 is an enlarged sectional view taken along the line AA of FIG. 3;
【図５】図３の複合板の接合部の処理の仕方を示す断面
図。FIG. 5 is a cross-sectional view showing a method of processing a joint portion of the composite board of FIG. 3;
【図６】コンクリート床版の梁部の補修例を示す一部の
断面図。FIG. 6 is a partial cross-sectional view showing an example of repairing a beam portion of a concrete floor slab.
【図７】従来のコンクリート床版下面の補修の施工技術
を示す説明図。FIG. 7 is an explanatory view showing a conventional technique for repairing the lower surface of a concrete floor slab.
【図８】従来の梁部の補修の施工技術を示す説明図。FIG. 8 is an explanatory view showing a conventional construction technique for repairing a beam portion.
１ コンクリート床版 １ａ 削落面 ２ 支柱 ３ 梁材 ４ 足場 ５ 仮柱 ６ 型枠 ７ 充填材 ８ 梁 ９ 鉄筋 １０ 穴 １１ スクリューアンカー １２ 樹脂接着剤 １３ 防錆ペースト １４ 長ナット部材 １５ 支持用スクリュー １６，２０，２５ ワッシャ １７ 複合板（炭素繊維内蔵セメントモルタル複合板） １８ 桟木 １９ 支持部材 ２１ ナット ２２ 空隙 ２３ 充填材（モルタル） ２４ 固定用ボルト ２６ 基板 ２７ 炭素繊維シート ２８，３３ アクリル弾性塗装 ２９ ガラス繊維 ３０ 下地調整材 ３１ 接着代 ３２ 接続用炭素繊維シート ３４ 浸透性防錆剤浸透域 DESCRIPTION OF SYMBOLS 1 Concrete floor slab 1a Shaved surface 2 Prop 3 Beam 4 Scaffold 5 Temporary column 6 Formwork 7 Filler 8 Beam 9 Reinforcing bar 10 Hole 11 Screw anchor 12 Resin adhesive 13 Rust prevention paste 14 Long nut member 15 Support screw 16 , 20, 25 washer 17 composite board (carbon fiber built-in cement mortar composite board) 18 crosspiece 19 support member 21 nut 22 void 23 filler (mortar) 24 fixing bolt 26 substrate 27 carbon fiber sheet 28, 33 acrylic elastic coating 29 glass Fibers 30 Base adjustment material 31 Adhesion allowance 32 Carbon fiber sheet for connection 34 Permeable rust preventive agent permeation area
───────────────────────────────────────────────────── フロントページの続き (71)出願人 591055791 旭ケミテック株式会社 東京都渋谷区渋谷１丁目14番８号 宮益Ｓ Ｋビル４階 (72)発明者 坂 本 全 布 東京都新宿区西新宿一丁目25番１号 大成 建設株式会社内 (72)発明者 仲 野 定 東京都中央区日本橋人形町二丁目31番11号 ニッシンボウ・エンジニアリング株式会 社内 (72)発明者 中 岡 敬 造 東京都港区新橋五丁目８番３号 株式会社 アスクエンジニアリング内 (72)発明者 山 田 信 一 東京都渋谷区渋谷一丁目14番８号 旭ケミ テック株式会社内 Ｆターム(参考） 2D059 AA03 DD15 GG40 2E176 AA03 BB29 ────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 591055791 Asahi Chemitec Co., Ltd. 1-14-8 Shibuya, Shibuya-ku, Tokyo Miyamasu SK Building 4th floor (72) Inventor Zenfuku Sakamoto Nishishinjuku, Shinjuku-ku, Tokyo 1-25-1, Taisei Corporation (72) Inventor Sada Nakano 2-31-11, Nihonbashi-Ningyocho, Chuo-ku, Tokyo Nissinbo Engineering Co., Ltd.In-house (72) Inventor Keizo Nakaoka Port of Tokyo 5-8-3 Shinbashi-ku, ASK Engineering Co., Ltd. (72) Inventor Shinichi Yamada 1-14-8, Shibuya, Shibuya-ku, Tokyo F-term in Asahi Chemi-Tech Corporation 2D059 AA03 DD15 GG40 2E176 AA03 BB29
Claims (2)
削落し、該コンクリート構造物の劣化部削落面にスクリ
ューアンカーをその一端が該削落面から若干突出するよ
う抜出不能に埋設し、このスクリューアンカーの突出端
に長ナット部材の一半部を螺合してその長ナット部材の
他半部に支持用スクリューの一端を螺挿し、この支持用
スクリューに炭素繊維内蔵セメントモルタル複合板を挿
通するとともにこれを支える支持部材を挿通してナット
で固定したのち前記コンクリート構造物の劣化部削落面
と前記複合板との間にモルタル等の充填材を充填し、充
填材の硬化後支持用スクリューを長ナット部材から外し
て前記支持部材を撤去し、これに代えて固定用ボルトを
長ナット部材に螺挿締着して前記複合板を固定すること
を特徴とする高耐久性構造埋設型枠工法。1. A deteriorated portion of a concrete structure to be repaired is cut off, and a screw anchor is buried in a cut surface of the deteriorated portion of the concrete structure so that one end thereof protrudes slightly from the cut surface so as not to be pulled out. Then, one half of the long nut member is screwed into the projecting end of the screw anchor, and one end of a support screw is screwed into the other half of the long nut member, and the carbon fiber built-in cement mortar composite plate is inserted into the support screw. After inserting the supporting member that supports it and fixing it with a nut, a filler such as mortar is filled between the cut surface of the deteriorated portion of the concrete structure and the composite board, and the filler is supported after curing. The fixing screw is removed from the long nut member and the supporting member is removed, and instead, a fixing bolt is screwed and fastened to the long nut member to fix the composite plate. Sex structure buried Form System.
は、セメントモルタル製の基板の一面に炭素繊維シート
が固着され、この炭素繊維シートに美感および耐候性向
上のためのアクリル弾性塗装が施された構造を有する請
求項１記載の高耐久性構造埋設型枠工法。2. The cement mortar composite board containing carbon fibers has a carbon fiber sheet fixed to one surface of a substrate made of cement mortar, and this carbon fiber sheet is coated with an acrylic elastic coating for improving aesthetics and weather resistance. The method for burying a highly durable structure according to claim 1 having a structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15223599A JP4137287B2 (en) | 1999-05-31 | 1999-05-31 | High durability structure embedded formwork method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15223599A JP4137287B2 (en) | 1999-05-31 | 1999-05-31 | High durability structure embedded formwork method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000336944A true JP2000336944A (en) | 2000-12-05 |
| JP4137287B2 JP4137287B2 (en) | 2008-08-20 |
Family
ID=15536051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15223599A Expired - Fee Related JP4137287B2 (en) | 1999-05-31 | 1999-05-31 | High durability structure embedded formwork method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4137287B2 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002275927A (en) * | 2001-03-13 | 2002-09-25 | Shimizu Corp | Method for strengthening reinforced concrete structure, and additionally strengthened reinforced concrete structure |
| JP2008133725A (en) * | 2008-03-06 | 2008-06-12 | Public Works Research Institute | Reinforced concrete pier |
| JP2010270584A (en) * | 2009-04-24 | 2010-12-02 | Komai Tekko Kk | Bridge pier reinforcing construction method with steel plate lining |
| JP2011099216A (en) * | 2009-11-04 | 2011-05-19 | Tokyu Construction Co Ltd | Method of repairing existing concrete structure |
| CN105863294A (en) * | 2016-05-31 | 2016-08-17 | 浙江大学 | Composite anchor rod device and method for fastening cross section by using anchor rod device in anchoring manner |
| CN106013833A (en) * | 2016-05-31 | 2016-10-12 | 浙江大学 | Anchor rod device and method for reinforcing section through anchoring of anchor rod device |
| CN106049893A (en) * | 2016-05-31 | 2016-10-26 | 浙江大学 | Extendable anchor rod device and method for reinforcing section through anchoring of anchor rod device |
| CN108374354A (en) * | 2018-04-12 | 2018-08-07 | 中国十七冶集团有限公司 | A method of using pre-stressed carbon fiber plate reinforcement bridge |
| CN109505305A (en) * | 2018-11-23 | 2019-03-22 | 绍兴大明电力设计院有限公司 | High-pressure rotary-spray formula Screw Anchor composite foundation and preparation method thereof |
| JP2019112815A (en) * | 2017-12-22 | 2019-07-11 | ショーボンド建設株式会社 | Reinforcement tool and method of reinforcing reinforced concrete structure using the same |
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-
1999
- 1999-05-31 JP JP15223599A patent/JP4137287B2/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002275927A (en) * | 2001-03-13 | 2002-09-25 | Shimizu Corp | Method for strengthening reinforced concrete structure, and additionally strengthened reinforced concrete structure |
| JP2008133725A (en) * | 2008-03-06 | 2008-06-12 | Public Works Research Institute | Reinforced concrete pier |
| JP4743644B2 (en) * | 2008-03-06 | 2011-08-10 | 独立行政法人土木研究所 | Reinforced concrete pier |
| JP2010270584A (en) * | 2009-04-24 | 2010-12-02 | Komai Tekko Kk | Bridge pier reinforcing construction method with steel plate lining |
| JP2011099216A (en) * | 2009-11-04 | 2011-05-19 | Tokyu Construction Co Ltd | Method of repairing existing concrete structure |
| CN106013833A (en) * | 2016-05-31 | 2016-10-12 | 浙江大学 | Anchor rod device and method for reinforcing section through anchoring of anchor rod device |
| CN105863294A (en) * | 2016-05-31 | 2016-08-17 | 浙江大学 | Composite anchor rod device and method for fastening cross section by using anchor rod device in anchoring manner |
| CN106049893A (en) * | 2016-05-31 | 2016-10-26 | 浙江大学 | Extendable anchor rod device and method for reinforcing section through anchoring of anchor rod device |
| JP2019112815A (en) * | 2017-12-22 | 2019-07-11 | ショーボンド建設株式会社 | Reinforcement tool and method of reinforcing reinforced concrete structure using the same |
| JP7077010B2 (en) | 2017-12-22 | 2022-05-30 | ショーボンド建設株式会社 | Reinforced structure of reinforced concrete structure and reinforcement method of reinforced concrete structure |
| CN108374354A (en) * | 2018-04-12 | 2018-08-07 | 中国十七冶集团有限公司 | A method of using pre-stressed carbon fiber plate reinforcement bridge |
| CN109505305A (en) * | 2018-11-23 | 2019-03-22 | 绍兴大明电力设计院有限公司 | High-pressure rotary-spray formula Screw Anchor composite foundation and preparation method thereof |
| CN111622130A (en) * | 2020-04-22 | 2020-09-04 | 山东大学 | Bridge reinforcing device, bridge reinforcing method and obtained bridge |
| CN111622130B (en) * | 2020-04-22 | 2021-09-28 | 山东大学 | Concrete bridge prestress distributed anchoring device and method |
| CN111719435A (en) * | 2020-07-14 | 2020-09-29 | 中国十七冶集团有限公司 | Device beneficial to mounting and dismounting bridge bent cap template |
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