JP6095187B1 - Seismic reinforcement structure for concrete columns - Google Patents

Seismic reinforcement structure for concrete columns Download PDF

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JP6095187B1
JP6095187B1 JP2016094249A JP2016094249A JP6095187B1 JP 6095187 B1 JP6095187 B1 JP 6095187B1 JP 2016094249 A JP2016094249 A JP 2016094249A JP 2016094249 A JP2016094249 A JP 2016094249A JP 6095187 B1 JP6095187 B1 JP 6095187B1
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concrete column
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藤本　隆司
隆司 藤本
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株式会社フジモト
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Abstract

【課題】構造が簡単で組み立て作業が容易で、外周に配置する繊維シートの変形による損傷を無くすことが可能なコンクリート柱の耐震補強構造を提供することを目的とする。【解決手段】コーナー部を曲面とした断面コ字形又は断面半円形の本体部の上下に内側に水平に伸びる上下水平補強リブと、本体部の両端から前方に伸びる連結リブを形成し、コンクリート柱の一面側に上下方向に連設される補強部材と、コンクリート柱の一面側にコンクリート柱の補強長さを有しアンカーボルトで固定される一対のＬ字形の固定部材と、補強部材の両端の連結リブとコンクリート柱に固定された固定部材に連通して固定するタイロッドと、補強部材の外周に配置される繊維シートと、コンクリート柱の一面側と補強部材との間の空隙に充填される固化剤と、からなることを特徴とする。【選択図】 図４An object of the present invention is to provide a seismic reinforcement structure for a concrete column that is simple in structure, easy to assemble, and can eliminate damage caused by deformation of a fiber sheet disposed on the outer periphery. A concrete column is formed by forming upper and lower horizontal reinforcing ribs extending horizontally inwardly on the upper and lower sides of a U-shaped or semicircular section having a curved corner, and connecting ribs extending forward from both ends of the body. A reinforcing member continuously provided on one surface side in the vertical direction, a pair of L-shaped fixing members having a reinforcing length of the concrete column and fixed with anchor bolts on one surface side of the concrete column, and both ends of the reinforcing member Tie rods that are connected and fixed to the connecting ribs and fixing members fixed to the concrete columns, fiber sheets disposed on the outer periphery of the reinforcing members, and solidification that fills the gaps between the one side of the concrete columns and the reinforcing members And an agent. [Selection] Figure 4

Description

本発明は、コンクリート柱の耐震補強構造に関する。   The present invention relates to a seismic reinforcement structure for concrete columns.

従来、コンクリート柱の耐震補強構造として、前面部とこの前面部の両側における一対の側面部とを備えた枠体が、既存柱の幅方向に複数の鋼板を組み合わせて構成されるとともに、上記側面部を既存柱の上下方向に沿わせて、複数の上記枠体が既存柱の上下方向に積層され、上記前面部と既存柱の前面との間に上記側面部に相当する間隔が保たれており、この間隔にグラウト材を充填してなるコンクリート柱の補強構造において、既存柱の補強必要長さにほぼ対応する長さの一対のガイド部材を備えており、ガイド部材は、上記枠体の側面部に接触する鋼板接触面と、既存柱あるいは既存柱に隣接する既存壁等の既存の構造体に接触する構造体接触面とを備えており、上記鋼板接触面を上記枠体における上記一対の側面部の設置間隔に合わせて既存柱の上下方向に沿わせており、上下方向に積層された上記枠体のすべての側面部が上記鋼板接触面に接触しており、上記構造体接触面を既存柱又は既存柱に隣接する既存の構造体に固定してなるコンクリート柱の補強構造が提案されている。 Conventionally, as a seismic reinforcement structure for a concrete column, a frame having a front portion and a pair of side portions on both sides of the front portion is configured by combining a plurality of steel plates in the width direction of an existing column, and the side surface described above. A plurality of the frame bodies are stacked in the vertical direction of the existing column with the portion being along the vertical direction of the existing column, and a space corresponding to the side surface portion is maintained between the front surface portion and the front surface of the existing column. cage, in reinforcing structure of the concrete columns formed by filling the grout in this interval, Ri Contact comprises a pair of guide members substantially corresponding length reinforcement required length of an existing column, guide member, the frame A steel plate contact surface in contact with the side surface of the body and a structure contact surface in contact with an existing structure such as an existing column or an existing wall adjacent to the existing column, and the steel plate contact surface in the frame body Match the installation interval of the pair of side parts The side surfaces of the frame stacked in the vertical direction are in contact with the steel plate contact surface, and the structure contact surface is adjacent to the existing column or the existing column. A concrete column reinforcement structure is proposed which is fixed to an existing structure.

特開２０１５−８６６９０号公報Japanese Patent Laying-Open No. 2015-86690

しかしながら、従来のコンクリート柱の耐震補強構造は、枠体が複数の鋼板を組み合わせて構成されているため組み立て作業に時間を要するという問題と、枠体が角部を有するため、枠体外周に繊維シートを配置する際、繊維シートが角部で損傷するという問題を有していた。   However, the conventional seismic reinforcement structure for concrete pillars has the problem that the frame body is composed of a plurality of steel plates, and the assembly work takes time, and the frame body has corners. When arranging the sheet, there was a problem that the fiber sheet was damaged at the corners.

本発明は、従来技術のもつ課題を解決する、構造が簡単で組み立て作業が容易で、外周に配置する繊維シートの変形による損傷を無くすことが可能なコンクリート柱の耐震補強構造を提供することを目的とする。   The present invention provides a seismic reinforcement structure for a concrete column that solves the problems of the prior art, has a simple structure, is easy to assemble, and can eliminate damage caused by deformation of a fiber sheet disposed on the outer periphery. Objective.

本発明のコンクリート柱の耐震補強は、前記課題を解決するために、コーナー部を曲面とした断面コ字形又は断面半円形の本体部の上下に内側に水平に伸びる上下水平補強リブと、本体部の両端から前方に伸び途中で直角に内側に折り曲げてさらに前方に伸びるように折り曲げた部分に固定ボルト用長孔を形成した連結リブを有し、コンクリート柱の一面側に上下方向に連設される補強部材と、コンクリート柱の一面側にコンクリート柱の補強長さを有しアンカーボルトで固定される一対のＬ字形の固定部材と、補強部材の連結リブに形成した固定ボルト用長孔とコンクリート柱に固定された固定部材に連通して固定するタイロッドと、補強部材の外周に配置される繊維シートと、コンクリート柱の一面側と補強部材との間の空隙に充填される固化剤と、からなることを特徴とする。
In order to solve the above-mentioned problems, the seismic reinforcement of the concrete pillar of the present invention has a vertical horizontal reinforcing rib extending horizontally inwardly on the upper and lower sides of a U-shaped or semicircular main body having a curved corner. It has connecting ribs with long holes for fixing bolts in the part that is bent inward at a right angle in the middle while extending forward from both ends, and is further extended forward. A reinforcing member, a pair of L-shaped fixing members having a reinforcing length of the concrete column on one side of the concrete column and fixed by anchor bolts, a fixing bolt long hole formed in the connecting rib of the reinforcing member, and the concrete A tie rod that is connected and fixed to a fixing member fixed to a pillar, a fiber sheet disposed on the outer periphery of the reinforcing member, and a space between the one side of the concrete pillar and the reinforcing member are filled. And solidifying agent, that consists of the features.

また、本発明の本発明のコンクリート柱の耐震補強構造は、前記補強部材の上下水平補強リブに複数の連結ボルト用孔を形成することを特徴とする。   Further, the seismic reinforcement structure for concrete pillars of the present invention is characterized in that a plurality of connecting bolt holes are formed in the upper and lower horizontal reinforcing ribs of the reinforcing member.

また、本発明のコンクリート柱の耐震補強構造は、下部構造と接する補強部材の下水平補強リブの連結ボルト用孔の上部に溶接で固定されるナットとナットに螺着される不陸調整用ボルトを備えることを特徴とする。   Further, the seismic reinforcement structure for concrete pillars according to the present invention includes a nut fixed by welding at the upper part of the connecting bolt hole of the lower horizontal reinforcing rib of the reinforcing member in contact with the lower structure, and a non-land adjustment bolt screwed to the nut. It is characterized by providing.

また、本発明のコンクリート柱の耐震補強構造は、コンクリート柱に上下方向に所定間隔あけてあと施工アンカーをその突出部がタイロッドと干渉しない位置に配置することを特徴とする。   Moreover, the seismic reinforcement structure for a concrete column according to the present invention is characterized in that the post-construction anchor is disposed at a position where the projecting portion does not interfere with the tie rod with a predetermined interval in the vertical direction of the concrete column.

また、本発明のコンクリート柱の耐震補強構造は、前記補強部材の上下方向の連結部外周に配置される重ね繊維シートを備えることを特徴とする。   Moreover, the earthquake-proof reinforcement structure of the concrete pillar of this invention is provided with the laminated fiber sheet arrange | positioned at the connection part outer periphery of the up-down direction of the said reinforcement member.

コーナー部を曲面とした断面コ字形又は断面半円形の本体部の上下に内側に水平に伸びる上下水平補強リブと、本体部の両端から前方に伸び途中で直角に内側に折り曲げてさらに前方に伸びるように折り曲げた部分に固定ボルト用長孔を形成した連結リブを有し、コンクリート柱の一面側に上下方向に連設される補強部材と、コンクリート柱の一面側にコンクリート柱の補強長さを有しアンカーボルトで固定される一対のＬ字形の固定部材と、補強部材の連結リブに形成した固定ボルト用長孔とコンクリート柱に固定された固定部材に連通して固定するタイロッドと、補強部材の外周に配置される繊維シートと、コンクリート柱の一面側と補強部材との間の空隙に充填される固化剤と、からなることで、組み立てが容易で補強部材の外周に配置される繊維シートが補強部材に角部が無いので引張応力により損傷することがなく、上下の水平補強リブが固化剤と一体化して耐震性能を向上することが可能になり、本体部の両端から前方に伸び途中で直角に内側に折り曲げてさらに前方に伸びるように折り曲げた部分に固定ボルト用長孔を形成した連結リブとことにより、固定ボルトの位置合わせが容易になり、固定状態での部材の外側への突出量を減少させることが可能となる。
補強部材の上下水平補強リブに複数の連結ボルト用孔を形成することで、上下方向への補強部材の連設が容易に実施することが可能となる。
下部構造に接する補強部材の下水平補強リブの連結ボルト用孔の上部に溶接で固定されるナットとナットに螺着される不陸調整用ボルトを備えることで、下部構造に多少の不陸が存在しても正確に補強部材を上下方向に連設することが可能となる。
コンクリート柱に上下方向に所定間隔あけてあと施工アンカーをその突出部がタイロッドと干渉しない位置に配置することで、コンクリート柱と固化剤の一体化を向上させ耐震性能を向上させることが可能となる。
補強部材の上下方向の連結部外周に配置される重ね繊維シートを備えることで、連結部にも切れ目なく繊維シートを配置されるので減衰性、引張強度がより向上する。 A vertical horizontal reinforcing rib that extends horizontally inward on the top and bottom of a U-shaped or semicircular cross-section with a curved corner, and extends forward from both ends of the main body and then bends inward at a right angle and extends further forward. has so bent connecting ribs form a fixing bolt long hole in the portion, and a reinforcing member provided continuously in the vertical direction on one side of the concrete column, the reinforcing length of the concrete pillars on one side of the concrete column A pair of L-shaped fixing members fixed by anchor bolts, a fixing bolt long hole formed in the connecting rib of the reinforcing member, a tie rod fixed in communication with the fixing member fixed to the concrete pillar, and the reinforcing member The fiber sheet disposed on the outer periphery of the concrete column and the solidifying agent filled in the gap between the one side of the concrete column and the reinforcing member are easy to assemble and disposed on the outer periphery of the reinforcing member. Without fiber sheet is being damaged by a tensile stress because there is no corner portion in the reinforcing member, it is possible to improve seismic performance above and below the horizontal reinforcing ribs integral with the solidifying agent, from both ends of the body portion By connecting the ribs with the fixing bolt long holes in the bent part so that it is bent inward at a right angle while extending forward, it is easy to align the fixing bolt, and the member in the fixed state It is possible to reduce the amount of protrusion to the outside.
By forming a plurality of connecting bolt holes in the upper and lower horizontal reinforcing ribs of the reinforcing member, the reinforcing members can be easily connected in the vertical direction.
By providing a nut fixed by welding to the upper part of the connecting bolt hole of the lower horizontal reinforcing rib of the reinforcing member in contact with the lower structure and a non-land adjusting bolt screwed to the nut, there is some unevenness in the lower structure. Even if it exists, the reinforcing member can be accurately arranged in the vertical direction.
By placing the post-installed anchor at a position where the projecting part does not interfere with the tie rods at a predetermined interval in the vertical direction in the concrete column, it becomes possible to improve the integration of the concrete column and the solidifying agent and improve the seismic performance. .
By providing the laminated fiber sheet disposed on the outer periphery of the connecting portion in the up-down direction of the reinforcing member, the fiber sheet is disposed without any break in the connecting portion, so that the damping property and the tensile strength are further improved.

（ａ）（ｂ）（ｃ）本発明の実施形態を示す図である。(A) (b) (c) It is a figure which shows embodiment of this invention. 本発明の実施形態を示す図である。It is a figure which shows embodiment of this invention. （ａ）（ｂ）本発明の実施形態を示す図である。(A) (b) It is a figure which shows embodiment of this invention. 本発明の実施形態を示す図である。It is a figure which shows embodiment of this invention. 本発明の実施形態を示す図である。It is a figure which shows embodiment of this invention. （ａ）（ｂ）本発明の実施形態を示す図である。(A) (b) It is a figure which shows embodiment of this invention.

本発明のコンクリート柱の耐震補強構造の実施形態を図により説明する。図１（ａ）（ｂ）（ｃ）は、コンクリート柱の耐震補強構造に用いる補強部材１の上面図、正面図、側面図である。   Embodiments of the seismic reinforcement structure for concrete columns of the present invention will be described with reference to the drawings. FIGS. 1A, 1B, and 1C are a top view, a front view, and a side view of a reinforcing member 1 used in a seismic reinforcing structure for a concrete column.

補強部材１は、半円形の本体部２の上下に水平に内側に伸びる上水平補強リブ３と下水平補強リブ４が形成される。上水平補強リブ３と下水平補強リブ４には、連結ボルト用孔６が複数形成される。上水平補強リブ３には複数の位置決め用爪８が固定される。位置決め用爪８は、補強部材１を上下方向に連設する際正確に位置決めする。   The reinforcing member 1 is formed with an upper horizontal reinforcing rib 3 and a lower horizontal reinforcing rib 4 that extend horizontally inwardly above and below the semicircular main body 2. A plurality of connecting bolt holes 6 are formed in the upper horizontal reinforcing rib 3 and the lower horizontal reinforcing rib 4. A plurality of positioning claws 8 are fixed to the upper horizontal reinforcing rib 3. The positioning claws 8 are accurately positioned when the reinforcing member 1 is continuously provided in the vertical direction.

半円形の本体部２の両端から前方に伸びる連結リブ５が形成される。連結リブ５には、固定ボルト用孔７が形成される。固定ボルト用孔７は、固定ボルトの位置合わせを容易にするために長孔とする。連結リブ５は、前方に伸び途中で内側にほぼ直角に折り曲がる部分を形成し、内側に折り曲がった部分に固定ボルト用孔７を形成し、固定状態での部材の外側への突出量を減少させることが可能になる。また、連結リブ５の角部も曲面状にすることが望ましい。   Connecting ribs 5 extending forward from both ends of the semicircular main body 2 are formed. A fixing bolt hole 7 is formed in the connecting rib 5. The fixing bolt hole 7 is a long hole to facilitate the positioning of the fixing bolt. The connecting rib 5 forms a part that is bent forward and is bent at a substantially right angle while extending forward, and a fixing bolt hole 7 is formed in the bent part so that the protruding amount of the member to the outside in the fixed state is increased. It becomes possible to decrease. Also, it is desirable that the corners of the connecting ribs 5 be curved.

図２は、補強部材１の他の実施形態を示す図である。この実施形態では、本体部２が断面コ字形の角部を曲面状にしたもので他の構成は図１に示される補強部材と同様であるので説明を省略する。   FIG. 2 is a view showing another embodiment of the reinforcing member 1. In this embodiment, the main body 2 has a U-shaped corner with a curved surface, and the other configuration is the same as that of the reinforcing member shown in FIG.

補強部材１は、低価格で加工が容易で一定の強度を有する鋼等の金属や繊維補強樹脂等の樹脂で形成される。   The reinforcing member 1 is formed of a metal such as steel or a resin such as a fiber reinforced resin that is inexpensive and easy to process and has a certain strength.

図３（ａ）（ｂ）は、コンクリート柱９に固定される固定部材１０の実施形態を示す図である。コンクリート柱９の一面側に補強対象長さに渡って一対の平行に伸びる断面Ｌ字形の固定部材１０がアンカーボルト１１で固定される。一対の断面Ｌ字形の固定部材９を連結部材１２で連結することで平行を維持した状態でコンクリート柱９の一面側に一対の固定部材９を固定することが可能となる。固定部材９にはタイロッド挿通孔１３が形成される。   FIGS. 3A and 3B are views showing an embodiment of the fixing member 10 fixed to the concrete pillar 9. A pair of L-shaped fixing members 10 extending in parallel over the length to be reinforced are fixed by anchor bolts 11 on one side of the concrete pillar 9. The pair of fixing members 9 can be fixed to one surface side of the concrete column 9 in a state where the parallelism is maintained by connecting the pair of L-shaped fixing members 9 with the connecting member 12. A tie rod insertion hole 13 is formed in the fixing member 9.

図４は、コンクリート柱９の一面側に補強部材１を固定部材１０に固定した状態を示す上面図であり、図５は、補強部材１と固定部材１０の固定状態の拡大図である。補強部材１の本体部２の外周には繊維シート１４が接着剤を介して配置される。繊維シート１４の両端はフリーの状態にする。 FIG. 4 is a top view showing a state in which the reinforcing member 1 is fixed to the fixing member 10 on one surface side of the concrete pillar 9, and FIG. 5 is an enlarged view of the fixing state of the reinforcing member 1 and the fixing member 10. A fiber sheet 14 is disposed on the outer periphery of the main body 2 of the reinforcing member 1 via an adhesive. Both ends of the fiber sheet 14 are in a free state.

固定部材１０に形成したタイロッド挿通孔１３と連結リブ５に形成した固定ボルト孔７に両端に雄ネジを形成したタイロッド１５を挿入する。タイロッド１５の両端雄ネジには、固定部材側ナット１６が螺着される。繊維シート１４の両端にはタイロッド挿通孔が形成され、タイロッド１５が挿入された繊維シート１４に張力を加えて押えプレート１７で押え、連結リブ側ナット１８を螺着する。繊維シート１４の両端に張力を付加するので、連結リブ５の角部も曲面にしておくことが望ましい。繊維シート１４が張力を付加されて固定されるので、補強部材１の引張強度が向上する。   A tie rod 15 having male screws formed at both ends is inserted into a tie rod insertion hole 13 formed in the fixing member 10 and a fixing bolt hole 7 formed in the connecting rib 5. A fixing member side nut 16 is screwed to both ends of the tie rod 15. Tie rod insertion holes are formed at both ends of the fiber sheet 14, tension is applied to the fiber sheet 14 with the tie rod 15 inserted therein, and the fiber plate 14 is pressed by the presser plate 17, and the connecting rib side nut 18 is screwed. Since tension is applied to both ends of the fiber sheet 14, it is desirable that the corners of the connecting ribs 5 be curved. Since the fiber sheet 14 is fixed with tension, the tensile strength of the reinforcing member 1 is improved.

コンクリート柱９には、上下方向に所定間隔であと施工アンカー１９が配置される、あと施工アンカー１９の配置は、あと施工アンカー１９の突出部がタイロッド１５と干渉しない位置にする。あと施工アンカー１９は、コンクリート柱９と補強部材１の間の空間に充填されるコンクリート等の固化剤との定着性を向上させ、耐久性を向上することが可能となる。   The concrete anchor 9 is provided with construction anchors 19 arranged at predetermined intervals in the vertical direction. The post-construction anchor 19 is placed at a position where the protruding portion of the post-construction anchor 19 does not interfere with the tie rod 15. The post-construction anchor 19 can improve the fixing property with a solidifying agent such as concrete filled in the space between the concrete column 9 and the reinforcing member 1 and improve the durability.

補強部材１とコンクリート柱９で囲まれた空間に軸方向筋２０を配筋する。必要に応じてフープ筋、副筋を配筋しても良い。軸方向筋２０の下端は下部構造に埋設固定する。   An axial streak 20 is arranged in a space surrounded by the reinforcing member 1 and the concrete pillar 9. You may arrange hoop muscles and accessory muscles as necessary. The lower end of the axial streak 20 is embedded and fixed in the lower structure.

図６（ａ）（ｂ）は、補強部材１をコンクリート柱９の一面側に固定し上方向に連設していく状態を示す側面図と一部拡大図である。最下部に位置する補強部材１の下水平補強リブ４に形成した連結ボルト用孔６の上にナット２２を溶着する。ナット２２に不陸調整用ボルト２３に螺着する。不陸調整ボルト２３は、下部構造２１の表面に不陸が存在する場合でも最下部に位置する補強部材１の水平度を正確に調整する。水平度を調整した補強部材１をタイロッド１５により固定部材１０に固定する。   FIGS. 6A and 6B are a side view and a partially enlarged view showing a state in which the reinforcing member 1 is fixed to one surface side of the concrete column 9 and continuously provided upward. A nut 22 is welded onto the connecting bolt hole 6 formed in the lower horizontal reinforcing rib 4 of the reinforcing member 1 located at the lowermost part. The nut 22 is screwed to the unevenness adjusting bolt 23. The unevenness adjusting bolt 23 accurately adjusts the level of the reinforcing member 1 located at the lowermost part even when unevenness exists on the surface of the lower structure 21. The reinforcing member 1 with the adjusted level is fixed to the fixing member 10 with a tie rod 15.

水平度が調整された補強部材１上に別の補強部材１を配置する。上に位置する補強部材１の位置決めは、下に位置する補強部材１の上水平補強リブ３に固定した位置決め用爪８により正確に位置決めする。下に位置する補強部材１の上水平補強リブ３に形成した連結ボルト用孔６と上に位置する補強部材１の下水平補強リブ５に形成した連結ボルト用孔６に連結ボルト２４を挿通して固定する。次いで、上に位置する補強部材１をタイロッド１５で固定部材に固定する。   Another reinforcing member 1 is arranged on the reinforcing member 1 whose horizontality is adjusted. The upper reinforcing member 1 is positioned accurately by the positioning claws 8 fixed to the upper horizontal reinforcing rib 3 of the lower reinforcing member 1. The connecting bolt 24 is inserted into the connecting bolt hole 6 formed in the upper horizontal reinforcing rib 3 of the lower reinforcing member 1 and the connecting bolt hole 6 formed in the lower horizontal reinforcing rib 5 of the upper reinforcing member 1. And fix. Next, the reinforcing member 1 positioned above is fixed to the fixing member with the tie rod 15.

下に位置する補強部材１と上に位置する補強部材１の連結部外周に重ね繊維シート２５を接着剤で固定する。連結部に重ね繊維シート２５を配置することにより、補強部材１の外周に配置される繊維シート１４の連続性が維持され、エネルギー減衰性と引張強度が向上する。   The overlapping fiber sheet 25 is fixed to the outer periphery of the connecting portion between the lower reinforcing member 1 and the upper reinforcing member 1 with an adhesive. By arranging the laminated fiber sheet 25 in the connecting portion, the continuity of the fiber sheet 14 arranged on the outer periphery of the reinforcing member 1 is maintained, and the energy attenuation and the tensile strength are improved.

上記工程を順次実施し、コンクリート柱９の補強対象まで補強部材の連設固定が完了すると型枠を設置し、コンクリート柱９と補強部材１に囲まれた空間にコンクリート等の固化剤を充填し固化させ、コンクリート柱９と補強部材１を一体化する。   The above steps are carried out in sequence, and when the continuous fixing of the reinforcing members to the reinforcement target of the concrete pillar 9 is completed, the formwork is installed, and the space surrounded by the concrete pillar 9 and the reinforcing member 1 is filled with a solidifying agent such as concrete. The concrete pillar 9 and the reinforcing member 1 are integrated by solidifying.

以上のように、本発明のコンクリート柱の耐震補強構造によれば、組み立てが容易で補強部材の外周に配置される繊維シートが補強部材に角部が無いので引張応力により損傷することがなく、上下の水平補強リブが固化剤と一体化して耐震性能を向上することが可能になる。   As described above, according to the seismic reinforcement structure of a concrete column of the present invention, the fiber sheet disposed on the outer periphery of the reinforcing member is easy to assemble and is not damaged by tensile stress because the reinforcing member has no corners. The upper and lower horizontal reinforcing ribs can be integrated with the solidifying agent to improve seismic performance.

１：補強部材、２：本体部、３：上水平補強リブ、４：下水平補強リブ、５：連結リブ、６：連結ボルト用孔、７：固定ボルト用孔、８：位置決め用爪、９：コンクリート柱、１０：固定部材、１１：アンカーボルト、１２：連結部材、１３：タイロッド挿通孔、１４：繊維シート、１５：タイロッド、１６：固定部材側ナット、１７：押えプレート、１８：連結リブ側ナット、１９：あと施工アンカー、２０：軸方向筋、２１：下部構造、２２：ナット、２３：不陸調整用ボルト、２４：連結ボルト、２５：重ね繊維シート   1: reinforcing member, 2: main body, 3: upper horizontal reinforcing rib, 4: lower horizontal reinforcing rib, 5: connecting rib, 6: connecting bolt hole, 7: fixing bolt hole, 8: positioning claw, 9 : Concrete pillar, 10: fixing member, 11: anchor bolt, 12: connecting member, 13: tie rod insertion hole, 14: fiber sheet, 15: tie rod, 16: nut on the fixing member side, 17: presser plate, 18: connecting rib Side nut, 19: Post-construction anchor, 20: Axial streak, 21: Substructure, 22: Nut, 23: Uneven adjustment bolt, 24: Connection bolt, 25: Multilayer fiber sheet

Claims (5)

コーナー部を曲面とした断面コ字形又は断面半円形の本体部の上下に内側に水平に伸びる上下水平補強リブと、本体部の両端から前方に伸び途中で直角に内側に折り曲げてさらに前方に伸びるように折り曲げた部分に固定ボルト用長孔を形成した連結リブを有し、コンクリート柱の一面側に上下方向に連設される補強部材と、
コンクリート柱の一面側にコンクリート柱の補強長さを有しアンカーボルトで固定される一対のＬ字形の固定部材と、
補強部材の連結リブに形成した固定ボルト用長孔とコンクリート柱に固定された固定部材に連通して固定するタイロッドと、
補強部材の外周に配置される繊維シートと、
コンクリート柱の一面側と補強部材との間の空隙に充填される固化剤と、
からなることを特徴とするコンクリート柱の耐震補強構造。 A vertical horizontal reinforcing rib that extends horizontally inward on the top and bottom of a U-shaped or semicircular cross-section with a curved corner, and extends forward from both ends of the main body and then bends inward at a right angle and extends further forward. A reinforcing member having a connecting rib in which a long hole for a fixing bolt is formed in the bent portion in such a manner and continuously provided on one side of the concrete column in the vertical direction;
A pair of L-shaped fixing members having a reinforcing length of the concrete column on one side of the concrete column and fixed by an anchor bolt;
A tie rod that is fixed in communication with a fixing bolt that is formed in the connecting rib of the reinforcing member and a fixing member that is fixed to the concrete column;
A fiber sheet disposed on the outer periphery of the reinforcing member;
A solidifying agent filled in a gap between one side of the concrete column and the reinforcing member;
An anti-seismic reinforcement structure for concrete columns. 前記補強部材の上下水平補強リブに複数の連結ボルト用孔を形成することを特徴とする請求項１に記載のコンクリート柱の耐震補強構造。   The seismic reinforcement structure for a concrete column according to claim 1, wherein a plurality of connecting bolt holes are formed in the upper and lower horizontal reinforcing ribs of the reinforcing member. 下部構造に接する補強部材の下水平補強リブの連結ボルト用孔の上部に溶接で固定されるナットとナットに螺着される不陸調整用ボルトを備えることを特徴とする請求項２に記載のコンクリート柱補強構造。   3. A non-land adjustment bolt screwed to the nut and a nut fixed to the upper portion of the connecting bolt hole of the lower horizontal reinforcing rib of the reinforcing member in contact with the lower structure. Concrete column reinforcement structure. コンクリート柱の上下方向に所定間隔あけその突出部が前記タイロッドと干渉しない位置に配置されるあと施工アンカーを備えることを特徴とする請求項１ないし３のいずれか１項に記載のコンクリート柱の耐震補強構造。   The earthquake resistance of a concrete column according to any one of claims 1 to 3, further comprising a post-construction anchor that is disposed at a position where the projecting portion does not interfere with the tie rod with a predetermined interval in the vertical direction of the concrete column. Reinforced structure. 前記補強部材の上下方向の連結部外周に配置される重ね繊維シートを備えることを特徴とする請求項１ないし４のいずれか１項に記載のコンクリート柱の耐震補強構造。   The seismic reinforcement structure for a concrete column according to any one of claims 1 to 4, further comprising a laminated fiber sheet disposed on the outer periphery of the connecting portion in the vertical direction of the reinforcing member.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04106267A (en) * 1990-08-23 1992-04-08 Okabe Co Ltd Form device of column
JPH0476867U (en) * 1990-11-15 1992-07-06
JPH10331436A (en) * 1997-05-28 1998-12-15 Taisei Corp Earthquake-resisting reinforcing structure for beam-column in existing structure
JPH11159152A (en) * 1997-11-27 1999-06-15 Tonen Corp Reinforcing method for concrete columnar body
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JP2014136924A (en) * 2013-01-17 2014-07-28 Sanyo-Home Co Ltd Reinforcement structure of concrete column with wall
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