JP6108958B2 - Reinforcement for concrete structures - Google Patents

Reinforcement for concrete structures Download PDF

Info

Publication number
JP6108958B2
JP6108958B2 JP2013110151A JP2013110151A JP6108958B2 JP 6108958 B2 JP6108958 B2 JP 6108958B2 JP 2013110151 A JP2013110151 A JP 2013110151A JP 2013110151 A JP2013110151 A JP 2013110151A JP 6108958 B2 JP6108958 B2 JP 6108958B2
Authority
JP
Japan
Prior art keywords
concrete structure
shaft portion
mortar
insertion shaft
reinforcing member
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.)
Active
Application number
JP2013110151A
Other languages
Japanese (ja)
Other versions
JP2014227771A (en
Inventor
修 南
修 南
Original Assignee
株式会社 南組
株式会社 南組
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 株式会社 南組, 株式会社 南組 filed Critical 株式会社 南組
Priority to JP2013110151A priority Critical patent/JP6108958B2/en
Publication of JP2014227771A publication Critical patent/JP2014227771A/en
Application granted granted Critical
Publication of JP6108958B2 publication Critical patent/JP6108958B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Revetment (AREA)

Description

本発明は、岸壁、堤防、ダムの突堤等のコンクリート製構造物に形成される亀裂が拡大するのを抑制し、構造物自体の損壊を未然に防止するコンクリート製構造物用補強具に関する。 The present invention relates to a reinforcing member for a concrete structure that suppresses the expansion of cracks formed in a concrete structure such as a quay, a dike, and a dam jetty, and prevents damage to the structure itself.

岸壁、堤防、ダムの突堤等のコンクリート製構造物は、コンクリートと鉄骨を組み合わせた構造からなるが、コンクリートは酸性雨や大気中の酸化物に接して次第にアルカリ化する。このコンクリートのアルカリ化に伴って鉄骨が発錆し、錆が更に拡大すると鉄骨は体積が約９％膨張することから終にはコンクリートが膨脹圧によって爆裂し、コンクリート構造物に亀裂や剥離が形成されてコンクリート構造物の強度性の低下を招くことになる。   Concrete structures such as quays, dikes, and dam jetty are composed of a combination of concrete and steel, but the concrete gradually becomes alkaline in contact with acid rain and atmospheric oxides. As the concrete is alkalized, the steel frame rusts, and when the rust expands further, the steel frame expands by about 9%. Finally, the concrete explodes due to the expansion pressure, and cracks and delamination form in the concrete structure. As a result, the strength of the concrete structure is lowered.

また、鉄筋を組み込んでいないコンクリート製構造物もアルカリ化を起因とする経年劣化によって亀裂が形成されるが、岸壁のように強い波浪力を受けると亀裂が拡大して岸壁自体が損壊してしまう事態も生じる。 In addition, cracks are also formed in concrete structures that do not incorporate reinforcing bars due to aging due to alkalinization, but if they are subjected to strong wave forces like quay walls, the cracks will expand and the quay walls themselves will be damaged. Things also happen.

このコンクリート構造物の亀裂を補修する方法として、従来は亀裂にモルタルを加圧充填する、或いは亀裂を含む周辺を凹状に切削してモルタルを充填するといった補修方法が行なわれている。また、堤防の補修方法として、五徳縫い水防工法があり、亀裂１の周囲の法面２に杭部材１０を打ち込む前に、管状部材２０を打ち込んで打ち込み用孔１９を形成し、その後杭部材１０を打ち込んで五徳縫い水防工法を実施する技術が提案されている（特許文献１）。 As a method for repairing a crack in the concrete structure, conventionally, a repair method has been performed in which a mortar is pressure-filled into the crack, or the periphery including the crack is cut into a concave shape to fill the mortar. In addition, as a repair method for the dike, there is a Gotoku stitch water-proof method. Before the pile member 10 is driven into the slope 2 around the crack 1, the tubular member 20 is driven to form the driving hole 19, and then the pile member 10. A technique for implementing the Gotoku sewing water-proofing method by driving in (Patent Document 1) has been proposed.

特開２０１１−１１１８２５JP2011-111825A

上述した従来技術において、モルタルを亀裂や凹部に単に充填する補修方法では、亀裂が更に拡大するのを防止することは不可能であるし、亀裂に雨水が浸透し、或いは浸透した雨水や雪が凍結して亀裂が更に拡大する事態を防止することは出来ないという欠点がある。また、五徳縫い水防工法にあっては、法面に打ち込んだ複数本の杭部材の上端側を交差させて紐で締結し、締結部位より上側に重りとしての土嚢を乗せることから、垂直面や傾斜面の補修には施工出来ないという欠点、補修工事に手間が掛り、費用が嵩む、耐久性に欠けるという欠点がある。   In the above-described conventional technique, it is impossible to prevent the crack from further expanding by the repair method in which the mortar is simply filled in the crack or the recess, and rainwater penetrates into the crack, or the rainwater or snow that has penetrated freezes. Thus, there is a drawback that it is impossible to prevent the situation where the cracks further expand. In addition, in the Gotoku seaweed flood control method, the upper ends of a plurality of pile members driven into the slope are crossed and fastened with a string, and a sandbag as a weight is placed on the upper side from the fastening part. There are drawbacks in that it is impossible to perform repairs on inclined surfaces, troublesome repair work, increased costs, and lack of durability.

本発明は上述した従来技術の諸欠点に鑑みなされたもので、コンクリート製構造物に生じた亀裂が拡大するのを抑制し、コンクリート製構造物自体が損壊するのを未然に防止し、しかも補強作業を簡単、迅速、安価に行うことを可能にしたコンクリート製構造物用補強具（以下、補強具と称する。）を提供することを目的とする。   The present invention has been made in view of the above-mentioned drawbacks of the prior art, and suppresses the expansion of cracks generated in a concrete structure, prevents the concrete structure itself from being damaged, and reinforces it. An object of the present invention is to provide a reinforcing member for a concrete structure (hereinafter referred to as a reinforcing member) which can be easily, quickly and inexpensively performed.

上述した課題を解決するために構成した本発明の手段は、外周面に係止溝を有し、コンクリート製構造物に挿着する一対の挿着軸部と、軸方向両端が該一対の挿着軸部に連結し、前記コンクリート製構造物の亀裂を横断する架橋軸部とから略コ字型の形状からなり、前記一対の挿着軸部及び架橋軸部はモルタル成形により一体化したものからなる。   The means of the present invention configured to solve the above-described problem includes a pair of insertion shaft portions having a locking groove on the outer peripheral surface and inserted into a concrete structure, and both ends in the axial direction of the pair. It has a substantially U-shaped shape from a bridging shaft portion that is connected to the landing shaft portion and crosses the crack of the concrete structure, and the pair of insertion shaft portions and the bridging shaft portion are integrated by mortar molding. Consists of.

そして、前記係止溝は、前記挿着軸部に軸方向に離間して配設した複数の環状溝、又は軸方向に形成した螺旋状溝にするとよい。 The locking groove may be a plurality of annular grooves that are spaced apart from each other in the axial direction on the insertion shaft portion, or a spiral groove that is formed in the axial direction.

また、前記環状溝からなる複数の係止溝は、モルタル導入溝で連通させるとよい。 The plurality of locking grooves formed of the annular groove may be communicated with each other through a mortar introduction groove.

また、前記モルタル導入溝は、先端を前記挿着軸部の先端に開口した状態に形成するとよい。   Further, the mortar introduction groove may be formed in a state where the tip is opened at the tip of the insertion shaft portion.

更に、前記挿着軸部は、外周面に周方向及び軸方向に離間して複数の姿勢保持片を突設するとよい。   Furthermore, it is preferable that the insertion shaft portion is provided with a plurality of posture holding pieces protruding from the outer peripheral surface in the circumferential direction and the axial direction.

また、前記一対の挿着軸部及び架橋軸部にかけて高強度の非金属製材料からなる補強材を配設するとよい。   Moreover, it is good to arrange | position the reinforcing material which consists of a high intensity | strength nonmetallic material over a pair of said insertion shaft part and bridge | crosslinking shaft part.

本発明は上述の如く構成したから下記の諸効果を奏する。
（１）補強具は、架橋軸部が亀裂を横断した状態でコンクリート製構造物に挿着する構成にしたから、亀裂の拡大を抑えることができる。
（２）補強具は、コンクリート製構造物に穿設した挿入孔にモルタルを充填して挿着するだけの作業で設置できるから作業性に優れている。
（３）補強具はモルタル成形により製作して金属材料は一切用いない構成にしたから、発錆したアンカーボルトや固定用金属片の体積増加によってコンクリート製構造物が爆裂し、また強度が低下するという従来の問題を完全に解消してコンクリート構造物の耐久性を大幅に高めることができる。
（４）補強具は、挿着軸部の外周面にモルタルが流入する複数の係止溝又は螺旋状溝を形成したから、コンクリート製構造物の挿入孔に確実かつ強固に挿着することができる。
（５）軸方向に離間する複数の環状係止溝はモルタル導入溝で連通させたから、全ての環状係止溝内にモルタルを充填させることができ、コンクリート製構造物により強固に固着することができる。
（６）モルタル導入溝はその先端を挿着軸部の先端に開口させたから、係止溝内にモルタルを速やかに導入させることができる。
（７）挿着軸部の外周面に周方向及び軸方向に離間して複数の姿勢保持片を突設したから、摺動性に欠けるコンクリート製構造物に容易に挿入することができ、しかも各姿勢保持片は硬化したモルタルに係着するので、補強具はコンクリート製構造物に強固に固着することができる。
（８）補強具は、一対の挿着軸部から架橋軸部にかけて高強度の非金属製材料からなる補強材を配設して高い強度性を持たせたから、コンクリート製構造物の亀裂の拡大を可及的に防止することができる。 Since the present invention is configured as described above, the following effects can be obtained.
(1) Since the reinforcing tool is configured to be inserted into the concrete structure with the bridging shaft portion crossing the crack, the expansion of the crack can be suppressed.
(2) The reinforcing tool is excellent in workability because it can be installed only by filling and inserting the mortar into the insertion hole formed in the concrete structure.
(3) Since the reinforcement is made by mortar molding and no metal material is used, the concrete structure explodes and the strength decreases due to the increase in volume of rusted anchor bolts and fixing metal pieces. It is possible to completely improve the durability of the concrete structure by completely eliminating the conventional problem.
(4) Since the reinforcing tool is formed with a plurality of locking grooves or spiral grooves into which the mortar flows on the outer peripheral surface of the insertion shaft portion, the reinforcing tool can be securely and firmly inserted into the insertion hole of the concrete structure. it can.
(5) Since the plurality of annular locking grooves spaced apart in the axial direction are communicated with each other through the mortar introduction groove, mortar can be filled in all the annular locking grooves and can be firmly fixed by the concrete structure. it can.
(6) Since the tip of the mortar introduction groove is opened at the tip of the insertion shaft portion, the mortar can be quickly introduced into the locking groove.
(7) Since a plurality of posture holding pieces protruded from the outer peripheral surface of the insertion shaft portion in the circumferential direction and the axial direction, it can be easily inserted into a concrete structure lacking slidability, Since each posture holding piece is engaged with the cured mortar, the reinforcing tool can be firmly fixed to the concrete structure.
(8) Since the reinforcing tool is provided with a reinforcing material made of a high-strength non-metallic material from the pair of insertion shaft portions to the bridging shaft portion, it has high strength, so that the crack of the concrete structure is expanded. Can be prevented as much as possible.

本発明の実施の形態に係るコンクリート製構造物用補強具の正面図である。It is a front view of the reinforcement tool for concrete structures concerning an embodiment of the invention. 補強具の部分拡大斜視図である。It is a partial expansion perspective view of a reinforcement tool. 補強具の使用状態を示す外観斜視図である。It is an external appearance perspective view which shows the use condition of a reinforcement tool. 補強具の他の使用状態を示す断面図である。It is sectional drawing which shows the other use condition of a reinforcement tool.

以下、本発明の実施の形態を図面に基づき詳述する。図において、１はモルタルで成形したコンクリート製構造物用補強具（以下、補強具１という。）を示し、コンクリート製構造物、例えば岸壁２１に穿設した挿入孔２２に挿着するものである。２、２は該補強具１を構成する一対の挿着軸部を示す。該各挿着軸部２はモルタルで円柱状に成形し、外周面２Ａに軸方向に離間して断面略凵状の環状係止溝３、３、３が３個形成してある。４は挿着軸部２の軸方向に形成したモルタル導入溝で、該モルタル導入溝４は各環状係止溝３に連通し、先端４Ａが挿着軸部２の先端２Ｂに開口している。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the figure, reference numeral 1 denotes a concrete structure reinforcing tool (hereinafter referred to as the reinforcing tool 1) formed of mortar, which is inserted into a concrete structure, for example, an insertion hole 22 drilled in a quay 21. . Reference numerals 2 and 2 denote a pair of insertion shaft portions constituting the reinforcing tool 1. Each insertion shaft portion 2 is formed into a cylindrical shape with mortar, and three annular locking grooves 3, 3, 3 having a substantially bowl-shaped cross section are formed on the outer peripheral surface 2 </ b> A so as to be axially separated. Reference numeral 4 denotes a mortar introduction groove formed in the axial direction of the insertion shaft portion 2, and the mortar introduction groove 4 communicates with each annular locking groove 3, and the tip 4 </ b> A is open to the tip 2 </ b> B of the insertion shaft portion 2. .

５は岸壁２１の表面２１Ａや裏面２１Ｂに形成された亀裂２３、２３を横断する円柱状の架橋軸部を示す。該架橋軸部５は軸方向両端が湾曲して前記一対の挿着軸部２、２の後端に連結して形成してある。
かくして、補強具１は一対の挿着軸部２、２と架橋軸部６とをモルタルによって略コ字状に成形したものからなる。なお、挿着軸部２及び架橋軸部６の長さは亀裂２３の幅と長さがコンクリート製構造物によって種々異なるものであるから、複数種のサイズのものを用意しておくとよい。 Reference numeral 5 denotes a columnar bridge shaft that crosses the cracks 23, 23 formed on the front surface 21 </ b> A and the back surface 21 </ b> B of the quay 21. The bridging shaft portion 5 is formed such that both ends in the axial direction are curved and connected to the rear ends of the pair of insertion shaft portions 2 and 2.
Thus, the reinforcing tool 1 is composed of a pair of insertion shaft portions 2 and 2 and a bridging shaft portion 6 formed into a substantially U shape by mortar. In addition, since the length of the insertion shaft part 2 and the bridge | crosslinking shaft part 6 differs in the width | variety and length of the crack 23 with concrete structures, it is good to prepare the thing of several types of sizes.

また、架橋軸部５から両挿着軸部２、２にかけて略コ字状に非金属製材料からなる補強材、例えばＦＲＰを埋設して補強具１の強度性をより高くするとよい。   Further, a reinforcing material made of a non-metallic material, for example, FRP, may be embedded in a substantially U shape from the bridging shaft portion 5 to both the insertion shaft portions 2 and 2 to increase the strength of the reinforcing tool 1.

６、６、・・は前記各環状係止溝３の間に位置して外周面２Ａに周方向及び軸方向に離間して突設した姿勢保持片を示す。該各姿勢保持片６は挿入孔２２の軸線に挿着軸部２の中心線が沿うように保持するためのもので、上面６Ａを前端から後端に向けて上り傾斜面に形成して挿入孔２２に挿入し易いようにしてある。 6, 6,... Are posture holding pieces that are located between the annular locking grooves 3 and project from the outer peripheral surface 2A so as to be spaced apart in the circumferential direction and the axial direction. Each of the posture holding pieces 6 is for holding the axis of the insertion hole 22 so that the center line of the insertion shaft portion 2 is along the axis, and the upper surface 6A is formed in an upward inclined surface from the front end toward the rear end. It is designed to be easily inserted into the hole 22.

本実施の形態からなる補強具１は上述の構成からなるが、次にその作用について説明する。例えば、岸壁２１に亀裂２３が形成された場合、この亀裂２３の両側にドリルで挿入孔２２、２２、・・を穿設する。挿入孔２２の数は亀裂２３の長さに応じて適宜決めるとよい。次に、各挿入孔２２及び亀裂２３に注入ガンによってモルタル２４を充填し、架橋軸部５が亀裂２３を横断するようにして挿着軸部２、２を挿入孔２２、２２に押圧しながら差し込む。そして、モルタル２４が硬化することによって、補強具１は岸壁２１に強固に固定することができる。このようにして、図３に示すように複数個の補強具１、１、１を亀裂２３の全長に亘って適宜の間隔で岸壁２１に挿着することにより、亀裂２３の拡大を抑制することができる。   Although the reinforcing tool 1 which consists of this Embodiment consists of the above-mentioned structure, the effect | action is demonstrated below. For example, when a crack 23 is formed in the quay wall 21, insertion holes 22, 22,... Are drilled on both sides of the crack 23 with a drill. The number of insertion holes 22 may be appropriately determined according to the length of the crack 23. Next, each insertion hole 22 and crack 23 are filled with mortar 24 with an injection gun, and the insertion shaft portions 2 and 2 are pressed against the insertion holes 22 and 22 so that the bridging shaft portion 5 crosses the crack 23. Plug in. And the hardening tool 1 can be firmly fixed to the quay 21 by hardening the mortar 24. In this way, as shown in FIG. 3, the expansion of the crack 23 is suppressed by inserting the plurality of reinforcing tools 1, 1, 1 into the quay wall 21 at appropriate intervals over the entire length of the crack 23. Can do.

本実施の形態によれば、亀裂２３を横断する架橋軸部５が亀裂２３の幅方向両側位置に挿入固着した挿着軸部２、２を連結した状態で保持するから、亀裂２３の幅が拡大する事態を防止できる。また、挿着軸部２にモルタル導入溝４を形成したから挿入孔２２にモルタル２４を充填した状態で挿着軸部２を挿入した場合、モルタル２４がモルタル導入溝４を介して全ての環状係止溝３に流入するので、補強具１は岸壁２１に強固に固着することができる。   According to the present embodiment, since the bridging shaft portion 5 that crosses the crack 23 holds the insertion shaft portions 2 and 2 that are inserted and fixed to both sides of the crack 23 in the width direction, the width of the crack 23 is reduced. Can prevent the situation from expanding. Further, since the mortar introduction groove 4 is formed in the insertion shaft portion 2, when the insertion shaft portion 2 is inserted in a state where the insertion hole 22 is filled with the mortar 24, the mortar 24 is inserted into the entire annular shape via the mortar introduction groove 4. Since it flows into the locking groove 3, the reinforcing tool 1 can be firmly fixed to the quay wall 21.

また、上記作用において、摺動性に欠けるコンクリート構造物である岸壁２１に摺動性の悪いモルタル製の挿着軸部２を無理なく挿入可能にするために、挿入孔２２は挿着軸部２の直径より幾分大径に設定して穿設してある。しかし、かくしては架橋軸部５の重みによって挿着軸部２は挿入孔２２に対して傾いた状態で岸壁２１に固定されてしまうことになり、岸壁２１が受ける波浪等の外力に対して十分な強度性を発揮できない事態が生じる。
そこで、挿着軸部２の外周面２Ａに複数の姿勢保持片６を周方向及び軸方向に離間して設け、各姿勢保持片６が挿入孔２２の内面に接することで挿着軸部２自体の接触面を可及的に小さくしたから、挿着軸部２は挿入孔２２に容易に挿入することができる。しかも、各姿勢保持片６は硬化するモルタル２４に食い込むことにより、補強具１は岸壁２１により強固に固着した状態にできる。 In addition, in the above operation, the insertion hole 22 is formed in the insertion shaft portion so that the insertion shaft portion 2 made of mortar having poor sliding property can be inserted into the quay 21 which is a concrete structure lacking slidability without difficulty. The diameter is set to be slightly larger than the diameter of 2. However, the insertion shaft portion 2 is thus fixed to the quay wall 21 in a state of being inclined with respect to the insertion hole 22 due to the weight of the bridging shaft portion 5, and is sufficient for external forces such as waves received by the quay wall 21. The situation that cannot show the sufficient strength occurs.
Therefore, a plurality of posture holding pieces 6 are provided on the outer peripheral surface 2A of the insertion shaft portion 2 so as to be spaced apart in the circumferential direction and the axial direction, and each posture holding piece 6 is in contact with the inner surface of the insertion hole 22 so that the insertion shaft portion 2 is provided. Since the contact surface of itself is made as small as possible, the insertion shaft portion 2 can be easily inserted into the insertion hole 22. In addition, the reinforcing tool 1 can be firmly fixed to the quay 21 by biting each posture holding piece 6 into the mortar 24 to be cured.

なお、本実施の形態では、挿着軸部２に係止溝として環状係止溝３を形成したが、軸方向に伸長する螺旋状係止溝にしてもよい。   In the present embodiment, the annular locking groove 3 is formed as a locking groove in the insertion shaft portion 2, but it may be a helical locking groove extending in the axial direction.

また、本発明において補強具１をモルタル成形する際、セメントにグラスファイバーやカーボンファイバー等の高強度の非金属製材料からなる補強材を配設して強度性を高めるとよい。   In addition, when the reinforcing tool 1 is mortar molded in the present invention, it is preferable to increase the strength by arranging a reinforcing material made of a high-strength non-metallic material such as glass fiber or carbon fiber in the cement.

１ 補強具
２ 挿着軸部
２Ａ 外周面
３ 環状係止溝
４ モルタル導入溝
４Ａ 先端
５ 架橋軸部
６ 姿勢保持片
２１ 岸壁（コンクリート製構造物）
２３ 亀裂
２４ モルタル DESCRIPTION OF SYMBOLS 1 Reinforcement tool 2 Insertion shaft part 2A Outer peripheral surface 3 Annular locking groove 4 Mortar introduction groove 4A Tip 5 Bridged shaft part 6 Posture maintenance piece 21 Quay wall (concrete structure)
23 Crack 24 Mortar

Claims (6)

外周面に係止溝を有し、コンクリート製構造物に挿着する一対の挿着軸部と、軸方向両端が該一対の挿着軸部に連結し、前記コンクリート製構造物の亀裂を横断する架橋軸部とから略コ字型の形状からなり、前記一対の挿着軸部及び架橋軸部はモルタル成形により一体化したものであるコンクリート製構造物用補強具。   A pair of insertion shafts having locking grooves on the outer peripheral surface and inserted into the concrete structure, and both ends in the axial direction are connected to the pair of insertion shafts, crossing the cracks in the concrete structure A reinforcing member for a concrete structure made of a substantially U-shape from a bridging shaft portion to be formed, wherein the pair of insertion shaft portions and the bridging shaft portion are integrated by mortar molding. 前記係止溝は、前記挿着軸部に軸方向に離間して配設した複数の環状溝、又は軸方向に形成した螺旋状溝からなることを特徴とする請求項１記載のコンクリート製構造物用補強具。 2. The concrete structure according to claim 1, wherein the locking groove includes a plurality of annular grooves disposed in the insertion shaft portion so as to be spaced apart from each other in the axial direction, or a spiral groove formed in the axial direction. Stiffener for things. 前記環状溝からなる複数の係止溝は、モルタル導入溝で連通させてあることを特徴とする請求項２記載のコンクリート製構造物用補強具。 The reinforcing member for a concrete structure according to claim 2, wherein the plurality of locking grooves formed of the annular grooves are communicated with each other by mortar introduction grooves. 前記モルタル導入溝は、先端が前記挿着軸部の先端に開口した状態に形成してあることを特徴とする請求項３記載のコンクリート製構造物用補強具。   The reinforcing member for a concrete structure according to claim 3, wherein the mortar introduction groove is formed in a state in which a tip is opened at a tip of the insertion shaft portion. 前記挿着軸部は、外周面に周方向及び軸方向に離間して複数の姿勢保持片を突設してあることを特徴とする請求項１記載のコンクリート製構造物用補強具。   The reinforcing member for a concrete structure according to claim 1, wherein the insertion shaft portion is provided with a plurality of posture holding pieces protruding from the outer peripheral surface in the circumferential direction and the axial direction. 前記一対の挿着軸部及び架橋軸部にかけて高強度の非金属製材料からなる補強材を配設してあることを特徴とする請求項１記載のコンクリート製構造物用補強具。   The reinforcing member for a concrete structure according to claim 1, wherein a reinforcing member made of a non-metallic material having high strength is disposed between the pair of insertion shaft portions and the bridging shaft portion.
JP2013110151A 2013-05-24 2013-05-24 Reinforcement for concrete structures Active JP6108958B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013110151A JP6108958B2 (en) 2013-05-24 2013-05-24 Reinforcement for concrete structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013110151A JP6108958B2 (en) 2013-05-24 2013-05-24 Reinforcement for concrete structures

Publications (2)

Publication Number Publication Date
JP2014227771A JP2014227771A (en) 2014-12-08
JP6108958B2 true JP6108958B2 (en) 2017-04-05

Family

ID=52127884

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013110151A Active JP6108958B2 (en) 2013-05-24 2013-05-24 Reinforcement for concrete structures

Country Status (1)

Country Link
JP (1) JP6108958B2 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6050945B2 (en) * 1981-03-09 1985-11-11 ナス工業株式会社 How to repair mortar walls in 2″ x 4″ wooden buildings
JPS63142158A (en) * 1986-12-02 1988-06-14 小林　直彦 Method for injecting repairing chemical liquid in wall surface part of concrete building
JPH0355714Y2 (en) * 1987-03-06 1991-12-12
US5771557A (en) * 1996-11-21 1998-06-30 Contrasto; Sam Concrete internal metal stitching
DE19712425A1 (en) * 1997-03-25 1998-10-01 Upat Max Langensiepen Kg Xings
JP3532441B2 (en) * 1999-03-17 2004-05-31 蓮太郎 難波 REINFORCEMENT STRUCTURE AND METHOD FOR REINFORCING AT CONNECTION BETWEEN STRUCTURAL MATERIALS
MXPA02006894A (en) * 2000-01-13 2004-08-12 Dow Chemical Co Composites of reinforcing fibers and thermoplastic resins as external structural supports.
JP2002213424A (en) * 2001-01-17 2002-07-31 Yoshicon Co Ltd Concrete made bolt and nut and manufacturing device thereof
JP2005016572A (en) * 2003-06-24 2005-01-20 Sumitomo Osaka Cement Co Ltd Screw component and manufacturing method therefor

Also Published As

Publication number Publication date
JP2014227771A (en) 2014-12-08

Similar Documents

Publication Publication Date Title
JP4659513B2 (en) A method for reinforcing a hollow columnar object.
KR101216391B1 (en) Segment structure of shield tunnel making use of a prestressed steel wire and segment lining method fixing the segment therewith
KR100749012B1 (en) Wedge-point-tip permanent anchor sets
US9631336B2 (en) Screw anchor pile for earth reinforcement and manufacturing method for the same
JP4927662B2 (en) Repair method for existing lining
KR101626395B1 (en) Method for Repairing or Reinforcing Concrete Structure
KR101043666B1 (en) Reparing method of inner side of aged drains
KR100797800B1 (en) Fixing device of permanent anchor
JP5965778B2 (en) Long mirror bolt method
JP6108958B2 (en) Reinforcement for concrete structures
KR101029320B1 (en) Rock bolt and fixation method the rock bolt
RU2592083C2 (en) Extensible anchor bolt
KR101079075B1 (en) Reinforce Unit For Grouting And Grouting Reinforce Method Using The Same
JP5078816B2 (en) How to attach a bag to a shield tunnel segment and a shield tunnel segment body
JP2017186801A (en) Lock bolt
JP2016148231A (en) Reduction method of peripheral frictional resistance force in drilled hole of ground anchor free length section
JP2009510288A (en) Packer for repairing cracks in concrete structures
JP4017766B2 (en) Hollow cylindrical body and its construction method
KR101864857B1 (en) Construction method of foundation pile with reinforced casing structure
KR200407613Y1 (en) Precast concrete box with bolt connecting structure
JP6286882B2 (en) Construction method of seawall, double steel pipe and superstructure
JP6195732B2 (en) Concrete structure repair tool
KR101393728B1 (en) Construction anchor for soft ground and ground reinforcement method using the same
KR100871467B1 (en) Ground pressure anchor and constructing method thereof
JP2006265868A (en) Segment joint structure

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20160518

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20170207

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20170208

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20170307

R150 Certificate of patent or registration of utility model

Ref document number: 6108958

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250