JP2011026786A - Structure for reinforcing building - Google Patents

Structure for reinforcing building Download PDF

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JP2011026786A
JP2011026786A JP2009171070A JP2009171070A JP2011026786A JP 2011026786 A JP2011026786 A JP 2011026786A JP 2009171070 A JP2009171070 A JP 2009171070A JP 2009171070 A JP2009171070 A JP 2009171070A JP 2011026786 A JP2011026786 A JP 2011026786A
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column
steel plate
pillar
grout
enclosure
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JP5517516B2 (en
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Eiji Makitani
栄次 槇谷
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Eiji Makitani
栄次 槇谷
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure for reinforcing a building, which enables the building to be reinforced in a short period of time by simple construction work, while obtaining a sufficient reinforcing effect. <P>SOLUTION: A specific side surface of a column 1 with a quadrangular cross section is enclosed with an enclosure steel plate 7 for the column in such a manner as to maintain a predetermined interval. In a portion where the column 1 and a beam 6 cross each other, a surface of the column 1 and a surface of the beam 6 continuing into the column are enclosed with an enclosure steel plate 8 for the crossing portion, in which the enclosure steel plate for the column is integrally provided with an elongated portion for the beam, in such a manner as to maintain a predetermined interval; the enclosure steel plates 7 and 8 are arranged on the side of the same side surface of the specific column 1; the column 1 and the beam 6 are integrally surrounded by injecting a grout material 4 between the enclosure steel plates 7 and 8 and the surface of the column 1 and that of the beam 6; and a plurality of axial bars 5 in the axial direction of the column 1 are arranged in the grout material 4. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

この発明は、例えば、既存の建造物の断面が四角形の柱などを事後的に補強するのに適した補強構造に関する。   The present invention relates to a reinforcing structure suitable for, for example, retrofitting a pillar having a square cross section of an existing building.

例えば、建造物の耐震性を向上させるため、柱や壁を事後的に補強する構造として、特許文献1に示すものが知られている。この従来の補強構造は、断面が四角形の柱の全面を補強するものである。
具体的には、図6に示すように、断面四角形の柱1の周囲全ての面を、その柱1の長手方向に直交する面での断面をL字状にした4枚の囲い鋼板2で囲うが、各囲い鋼板2の直角部をそれぞれ柱1の4つの角に対応させて設置する。そして、図6に示すように、互いに隣接する一方の囲い鋼板2の一方の片に、他方の囲い鋼板2の他方の片が重ね合わされるようにする。このとき、各囲い鋼板2と柱1の側面との間には、ほぼ一定の間隔を設けておく。
For example, in order to improve the earthquake resistance of a building, a structure shown in Patent Document 1 is known as a structure for retrofitting columns and walls. This conventional reinforcing structure reinforces the entire surface of a column having a square cross section.
Specifically, as shown in FIG. 6, all the surfaces around the column 1 having a quadrangular section are formed by four enclosing steel plates 2 having a L-shaped cross section in a plane perpendicular to the longitudinal direction of the column 1. Although it is enclosed, the right-angled part of each enclosure steel plate 2 is installed corresponding to the four corners of the pillar 1, respectively. And as shown in FIG. 6, the other piece of the other enclosure steel plate 2 is made to overlap with one piece of the enclosure steel plate 2 adjacent to each other. At this time, a substantially constant interval is provided between each of the surrounding steel plates 2 and the side surface of the column 1.

上記のようにした囲い鋼板2の外周に帯状シート3を接着しながら巻きつけることによって、柱1を囲った囲い鋼板2を結束する。
上記のようにして帯状シート3で4枚の囲い鋼板2を結束したら、今度は、4枚の囲い鋼板2と柱1との間に形成した間隔にグラウト材4を充填する。そして、グラウト材4を柱1の側面に密着させてそれらを一体化する。
By winding the belt-like sheet 3 around the outer periphery of the enclosure steel plate 2 as described above, the enclosure steel plate 2 surrounding the column 1 is bound.
When the four enclosed steel plates 2 are bundled with the belt-like sheet 3 as described above, the grout material 4 is filled in the interval formed between the four enclosed steel plates 2 and the pillars 1. Then, the grout material 4 is brought into close contact with the side surface of the pillar 1 to integrate them.

上記のように4枚の囲い鋼板2で柱1を囲うとともに、柱1と囲い鋼板2との間に形成される間隔にグラウト材4を充填するが、上記間隔内の四隅には、軸方向筋5を上記柱1の軸方向に平行もしくはほぼ平行に配置しておく。
これにより、軸方向筋5を内部に配置したグラウト材4が柱1と一体化して、柱1が補強されるというものである。
As described above, the four surrounding steel plates 2 surround the column 1 and the grout material 4 is filled in the interval formed between the column 1 and the surrounding steel plate 2, but the four corners in the interval have axial directions. The streak 5 is arranged in parallel or substantially parallel to the axial direction of the column 1.
Thereby, the grout material 4 which has arrange | positioned the axial direction stripe | line | column 5 inside is integrated with the pillar 1, and the pillar 1 is reinforced.

特開2008−240368号公報JP 2008-240368 A

上記従来の補強構造では、柱1の周囲全面に、所定の間隔を保った囲い鋼板2を対向させ、この間隔内にグラウト材4を充填するとともに、軸方向筋5を配置することによって、柱1の強度を高め、建造物を補強するものである。
このように、柱1の全面を囲い鋼板2で囲み、この囲い鋼板2と柱1の表面との間にグラウト材4を設ける構造では、使用する囲い鋼板2やグラウト材4の使用量が多くなるとともに、その工事が大掛かりになってしまう。
In the above-described conventional reinforcing structure, the surrounding steel plate 2 having a predetermined interval is made to face the entire periphery of the column 1, the grout material 4 is filled in this interval, and the axial streak 5 is arranged, whereby the column The strength of 1 is increased to reinforce the building.
In this way, in the structure in which the entire surface of the pillar 1 is surrounded by the surrounding steel plate 2 and the grout material 4 is provided between the surrounding steel plate 2 and the surface of the pillar 1, the amount of the surrounding steel plate 2 and grout material 4 to be used is large. At the same time, the construction becomes large.

そのため、上記従来の補強構造では、材料コストがかさむという問題や、工期が長くなってしまうという問題があった。このような補強工事は既存の建造物に対して行なうので、工期が長くなれば、住人などに長期間不便を強いることになる。
また、いわゆる壁付き柱の場合、壁が邪魔になって柱の全面を囲い鋼板2で囲うことが難しく、十分な補強ができないこともあった。
Therefore, the above-described conventional reinforcing structure has a problem that the material cost is increased and a construction period becomes long. Since such a reinforcement work is performed on an existing building, if the construction period becomes long, it will inconvenience residents for a long time.
In the case of a so-called walled column, it is difficult to enclose the entire surface of the column with the steel plate 2 because the wall becomes an obstacle, and sufficient reinforcement may not be possible.

この発明の目的は、十分な補強効果を得ながら、簡易な工事で短期間に補強ができる建造物の補強構造を提供することである。   An object of the present invention is to provide a reinforcing structure for a building that can be reinforced in a short period of time by simple construction while obtaining a sufficient reinforcing effect.

第1の発明は、柱及びこの柱と交差する梁を備えた建造物の補強構造であって、断面が四角形の柱の特定の側面を所定の間隔を保持して柱用囲い鋼板で囲うとともに、柱と梁との交差部は、柱用囲い鋼板に梁用延伸部を一体に設けた交差部用囲い鋼板で、上記柱の表面と、柱に連続する梁の表面とを所定の間隔を保持して囲う一方、これら柱用囲い鋼板と交差部用囲い鋼板とを特定の柱の同一側面側に配置させ、上記囲い鋼板と上記柱の表面及び梁の表面との間にグラウト材を注入して柱と梁とを一体的に囲み、上記グラウト材中に、上記柱の軸方向に沿った軸方向筋を複数配置した点に特徴を有する。   1st invention is the reinforcement structure of the structure provided with the pillar and the beam which cross | intersects this pillar, Comprising: While enclosing the specific side surface of the pillar with a square cross section with the predetermined space | interval, it is enclosed with the steel plate for pillars The intersection between the column and the beam is a cross-section enclosure steel plate in which an extension portion for the beam is integrally provided on the column enclosure steel plate, and a predetermined interval is provided between the surface of the column and the surface of the beam continuous to the column. While holding and enclosing, the enclosure steel plate for pillars and the enclosure steel plate for intersections are arranged on the same side of a particular column, and grout material is injected between the enclosure steel plate and the surface of the column and the surface of the beam Thus, the column and the beam are integrally surrounded, and a plurality of axial streaks along the axial direction of the column are arranged in the grout material.

第2の発明は、第1の発明を前提とし、上記囲い鋼板で囲われた柱及び梁の表面に、複数のアンカー部材を突出させた点を特徴とする。
第3の発明は、上記囲い鋼板を、スライド可能に組み合わせた一対の鋼板部材で構成するとともに、上記一対の鋼板部材の対向面を貫通し、その両端をそれぞれ、上記各対向面から外部に突出させるタイバーを設け、このタイバーの突出部に止め部材を取り付けることによって上記対向面間距離を保持する点に特徴を有する。
The second invention is premised on the first invention, and is characterized in that a plurality of anchor members protrude from the surfaces of the columns and beams surrounded by the surrounding steel plates.
3rd invention comprises the said surrounding steel plate with a pair of steel plate member which was combined so that sliding was possible, penetrated the opposing surface of a pair of said steel plate member, and the both ends each protruded outside from each said opposing surface It is characterized in that the distance between the opposed surfaces is maintained by providing a tie bar to be attached and attaching a stop member to the protruding portion of the tie bar.

上記第1〜第3の発明では、梁を結合した柱の特定の面と、柱と梁との交差部のみを、囲い鋼板で囲み、囲い鋼板で囲まれた空間にグラウト材と軸方向筋とを設けるようにしたので、柱の全側面をグラウト材で補強する従来の補強構造と比べてグラウト材など、使用する材料を少なくできるし、補強工事が容易で工期も短くできる。
なお、この発明によれば、柱と梁との交差部を補強して、両者の連結を強固なものにすることで、柱と梁の結合部の破断を防止できる。また、柱と梁との交差部の連結を強固なものにすればするほど、柱と梁とで外力を分担する機能が増し、その分、いっそうの補強効果を期待できることになる。
In the first to third aspects of the invention, only the specific surface of the column combined with the beam and the intersection between the column and the beam are surrounded by the surrounding steel plate, and the grout material and the axial streak are surrounded by the surrounding steel plate. As compared with the conventional reinforcing structure in which the entire side of the column is reinforced with a grout material, it is possible to use less material such as a grout material, and the reinforcement work is easy and the construction period can be shortened.
In addition, according to this invention, fracture | rupture of the connection part of a pillar and a beam can be prevented by reinforcing the intersection part of a pillar and a beam and making both connection firm. In addition, the stronger the connection between the intersections of the pillars and beams, the more the function of sharing the external force between the pillars and the beams, and the more reinforcing effect can be expected.

そのため、柱の補強は、柱の全面に対して行なわずに、壁などで覆われていない特定の側面のみを囲い鋼板及びグラウト材で囲むことでも、外力に対する柱の耐力を向上させることができる。そして、特定の側面のみを補強した柱と梁とを一体化する補強構造を、複数の箇所に設けることによって、建造物全体の耐震強度を従来の補強構造と同程度にすることができる。   Therefore, it is possible to improve the strength of the column with respect to external force by reinforcing only the specific side surface that is not covered with a wall or the like and surrounding it with a steel plate and grout material without reinforcing the column. . And the seismic strength of the whole building can be made comparable with the conventional reinforcement structure by providing the reinforcement structure which integrates the column and beam which reinforced only the specific side surface in several places.

また、上記柱用囲い鋼板と交差部用囲い鋼板とを、柱に対して同一側面側に設けるので、囲い鋼板の設置や、グラウト材の充填作業を同じ側面から行なうことができ、補強工事の作業性効率が向上する。
さらに、柱の特定の側面のみを囲う柱用囲い鋼板と、交差部用囲い鋼板とを同一面側に設ければ、柱用囲い鋼板の内側に充填したグラウト材内に配置する軸方向筋を、交差部用鋼板の内側のグラウト材内に貫通させ、多層にわたって軸方向筋を連続させることができる。そのため、従来のように柱の全面を補強する構造と同様に、柱の曲げ耐力を維持することができる。
In addition, since the steel plate for the column and the steel plate for the intersection are provided on the same side with respect to the column, the installation of the steel plate and the filling work of the grout material can be performed from the same side, Work efficiency is improved.
Furthermore, if the column enclosing steel plate that surrounds only a specific side surface of the column and the crossing enclosing steel plate are provided on the same surface side, the axial streaks arranged in the grout material filled inside the column enclosing steel plate It is possible to penetrate through the grout material inside the steel sheet for crossing and make the axial streak continuous over multiple layers. Therefore, the bending strength of the column can be maintained as in the conventional structure in which the entire surface of the column is reinforced.

また、柱の一つの側面のみを補強するので、従来のように柱の全面を補強するものよりも、1本の柱だけを見れば、従来のものよりも強度が多少劣るかもしれない。しかし、建造物には複数の柱が存在するが、それら柱の機能は全て同じとはいえず、大きな荷重を支えるものもあれば、小さな荷重を支えるものもある。従って、例えば、大きな荷重を支える柱を中心にして、それらの補強本数を多くすれば、建造物全体の補強効果は十分に得られるが、この点は、本出願人の長年の研究により判明したことである。   In addition, since only one side of the pillar is reinforced, the strength may be slightly inferior to that of the conventional one when only one pillar is seen as compared with the conventional case of reinforcing the entire surface of the pillar. However, there are multiple pillars in the building, but the functions of these pillars are not all the same. Some of them support large loads and others support small loads. Therefore, for example, if the number of reinforcements is increased around a pillar that supports a large load, the reinforcement effect of the entire building can be sufficiently obtained, but this point has been found by the applicant's long-term research. That is.

しかも、従来のように柱の全面を補強する場合でも、1本の柱だけの補強で足りることはほとんどなく、常に複数本の柱を補強しなければならないのが実情であり、そこにおけるグラウト材の全体の使用量もかなり多くなる。
一方、本願発明の補強構造でも、上記のように補強すべき柱の本数を増やしたとき、それだけグラウト材の使用量も増えるが、従来と同じ補強効果を得る場合、柱の全面を補強する場合に比べて、グラウト材の使用量は少なくてすむことが、実験により明らかになった。
グラウト材は通常かなり高価なので、使用量の僅かな節約でもそのコストダウンに対する効果が大きなものになる。
Moreover, even when reinforcing the entire surface of a pillar as in the past, it is rarely necessary to reinforce only one pillar, and it is a fact that a plurality of pillars must always be reinforced. The overall amount of use will also be considerably higher.
On the other hand, even in the reinforcing structure of the present invention, when the number of columns to be reinforced is increased as described above, the amount of grout used increases accordingly, but when the same reinforcing effect as the conventional one is obtained, the entire column is reinforced Experiments have shown that less grout can be used compared to.
Grout materials are usually quite expensive, so even a small saving in usage can have a significant effect on cost reduction.

第2の発明によれば、囲い鋼板で囲われた空間に充填されたグラウト材が、柱及び梁の表面から突出したアンカー部材を介してより強く結合し、建造物の補強効果が高まる。
第3の発明によれば、タイバーによって囲い部材の幅を保持し、囲い部材内部のグラウト材の圧力を維持することができ、グラウト材の密度を高めることによってより高い補強効果が得られる。
According to 2nd invention, the grout material with which the space enclosed with the surrounding steel plate was filled couple | bonded more strongly through the anchor member protruded from the surface of a pillar and a beam, and the reinforcement effect of a building increases.
According to the third invention, the width of the surrounding member can be maintained by the tie bar, the pressure of the grout material inside the surrounding member can be maintained, and a higher reinforcing effect can be obtained by increasing the density of the grout material.

第1実施形態の斜視図である。It is a perspective view of a 1st embodiment. 第1実施形態の正面図である。It is a front view of a 1st embodiment. 図1の断面図であり、柱の補強構造を示している。It is sectional drawing of FIG. 1, and has shown the reinforcement structure of the pillar. 図1の面図であり、交差部の補強構造を示している。FIG. 2 is a plan view of FIG. 1 showing a reinforcing structure at an intersection. 第2実施形態の交差部の断面図である。It is sectional drawing of the cross | intersection part of 2nd Embodiment. 従来の補強構造を示す斜視図である。It is a perspective view which shows the conventional reinforcement structure.

図1〜図4に示す第1実施形態は、柱1と直交する梁6,6を備えた建造物の補強構造である。なお、ここでは、記柱1とその両脇に接合した梁6,6の表面とが同一平面の場合を説明する。
この第1実施形態では、柱1の前面を囲うための柱用囲い鋼板7と、柱1と梁6との結合部を含む交差部を囲うための交差部用囲い鋼板8とを備えている。そして、これら囲い鋼板7,8と柱1との間には、柱1に沿った軸方向筋5を配置するとともに、グラウト材4を充填して、グラウト材4によって柱1の前面及び交差部を一体化して補強する。
The first embodiment shown in FIGS. 1 to 4 is a reinforcing structure for a building including beams 6 and 6 orthogonal to the pillar 1. Here, a case will be described in which the column 1 and the surfaces of the beams 6 and 6 joined to both sides thereof are on the same plane.
In the first embodiment, a column enclosing steel plate 7 for enclosing the front surface of the column 1 and an intersection enclosing steel plate 8 for enclosing the intersection including the coupling portion between the column 1 and the beam 6 are provided. . And between these enclosure steel plates 7 and 8 and the pillar 1, while arrange | positioning the axial streak 5 along the pillar 1, it is filled with the grout material 4, and the front of the pillar 1 and the cross | intersection part by the grout material 4 Integrate and reinforce.

次に、上記柱用囲い鋼板7及び交差部用囲い鋼板8について詳細に説明する。
図3に示すように、上記柱用囲い鋼板7は、一対の囲い部材9,10からなる。これら囲い部材9,10は、それぞれ、断面L字状の鋼板で柱1の表面に平行に配置される平行部9a,10aと、これらに直交する直交部9b、10bとからなる。そして、各囲い部材9,10の軸方向長さは、対向する柱1の軸方向長さを複数に分割した長さにしている。
上記のようにした一対の囲い部材9,10の平行部9a,10aの先端同士を重ね合わせて幅を柱1の幅に合わせるとともに、柱1の前面から所定の間隔を保って配置するが、これら囲い部材9,10からなる柱用囲い鋼板7を、柱1の軸方向に複数連続的に接合して、柱1の前面を覆うようにする。
Next, the column enclosure steel plate 7 and the intersection enclosure steel plate 8 will be described in detail.
As shown in FIG. 3, the column enclosure steel plate 7 includes a pair of enclosure members 9 and 10. These enclosing members 9 and 10 are each composed of parallel portions 9a and 10a which are L-shaped steel plates arranged in parallel with the surface of the column 1 and orthogonal portions 9b and 10b which are orthogonal to them. And the axial direction length of each enclosure member 9 and 10 is made into the length which divided | segmented the axial direction length of the column 1 which opposes into plurality.
The ends of the parallel parts 9a, 10a of the pair of enclosure members 9, 10 as described above are overlapped to match the width to the width of the pillar 1 and are arranged at a predetermined interval from the front surface of the pillar 1, A plurality of the column enclosing steel plates 7 including the enclosing members 9 and 10 are continuously joined in the axial direction of the column 1 so as to cover the front surface of the column 1.

そして、上記囲い部材9,10の表面には、上記した従来と同様に、帯状シート3を貼り付けて、囲い部材9,10を連結する。このとき柱用囲い鋼板7同士の接合部分を帯状シート3で覆って、それら柱用囲い鋼板7を軸方向に連結するようにしている。このように帯状シート3で柱用囲い鋼板7を連結させたので、囲い部材9,10がグラウト材4の圧力で外方に向かって膨らんだり、重ね合わせた部分が開いたりしない。
また、上記のように複数の柱用囲い鋼板7を接合して、その接合部分に帯状シート3で覆うことによって、それら接合部分の帯状シート3が、曲げ荷重を吸収する機能を発揮する。
上記のように帯状シート3が、圧力で外方に向かって膨らんだり、重ね合わせた部分が開いたりあるいは曲げ荷重を吸収したりする機能を発揮するためには、伸び難い材質の繊維シートなどが適している。
And the band-like sheet | seat 3 is affixed on the surface of the said surrounding members 9 and 10 similarly to the above-mentioned conventional, and the surrounding members 9 and 10 are connected. At this time, the joining portion between the column surrounding steel plates 7 is covered with the belt-like sheet 3 so as to connect the column surrounding steel plates 7 in the axial direction. Thus, since the column surrounding steel plates 7 are connected by the belt-like sheet 3, the surrounding members 9 and 10 are not expanded outwardly by the pressure of the grout material 4, and the overlapped portions are not opened.
Moreover, by joining the plurality of column-use steel plates 7 as described above and covering the joint portions with the belt-like sheet 3, the belt-like sheets 3 at the joint portions exhibit a function of absorbing bending load.
In order for the belt-like sheet 3 to bulge outward due to pressure, to open the overlapped portion, or to absorb a bending load as described above, a fiber sheet made of a material that is difficult to stretch is used. Is suitable.

また、各柱用囲い鋼板7の上記直交部9b,10bの対向間隔にはタイバー13をわたし、その両端を対向する直交部9b,10bから外部へ突出させている。このタイバー13の外周にはねじ溝を形成し、上記直交部9b,10bの外側に突出したタイバー13の両端には止め部材であるナット14,14をねじ止めして上記対向する直交部9b,10bの間隔を保持するようにしている。
なお、上記柱用囲い鋼板7は、柱1に対する止め手段を備えていないので、柱用囲い鋼板7は柱1に対して所定の間隔を保って配置したら、図示しない型枠によってその位置を固定してからグラウト材4を充填するようにしている。この型枠は、グラウト材4が固化したら取り除くものである。
In addition, a tie bar 13 is provided at the facing interval between the orthogonal portions 9b and 10b of the steel plate 7 for each column, and both ends thereof are protruded to the outside from the opposing orthogonal portions 9b and 10b. A screw groove is formed on the outer periphery of the tie bar 13, and nuts 14 and 14 which are stopper members are screwed to both ends of the tie bar 13 protruding to the outside of the orthogonal parts 9b and 10b. An interval of 10b is maintained.
Since the column enclosure steel plate 7 is not provided with a stopping means for the column 1, the column enclosure steel plate 7 is fixed in position by a mold (not shown) when it is arranged at a predetermined interval with respect to the column 1. After that, the grout material 4 is filled. This form is removed when the grout material 4 is solidified.

上記のようにこの第1実施形態では、複数の柱用囲い鋼板7で柱1の軸方向長さを覆うようにしているので、言い換えると柱用囲い鋼板7を複数に分割して軸方向長さを覆うようにしているので、例えば、一つの柱用囲い鋼板で柱のすべてを覆う場合よりも、その施工性がよくなる。つまり、一つの囲い鋼板で柱の全てを覆うようにすると、その柱用囲い鋼板7の重量がかさみ、施工現場での運搬等にクレーン等の機械を用いなければならない。しかしながら、一般に補強工事はすでに出来上がっている建造物で実施されるので、その建造物内に上記クレーン等を設置することはほとんど不可能である。そのために、上記柱用囲い鋼板を人手で運搬しなければならないので、上記のように重量がかさむと、その作業性が非常に悪くなる。また、重量がかさむものを人手で運搬すると、そこには危険性も増すという問題もある。   As described above, in the first embodiment, the plurality of column-use steel plates 7 cover the axial length of the column 1. In other words, the column-use steel plate 7 is divided into a plurality of pieces and the axial length is divided. For example, the workability is improved as compared with the case where all of the columns are covered with a single column steel plate. That is, if all of the pillars are covered with one enclosure steel plate, the weight of the enclosure steel plate 7 for the pillars is increased, and a machine such as a crane must be used for transportation at the construction site. However, since the reinforcement work is generally carried out in a completed building, it is almost impossible to install the crane or the like in the building. For this reason, since the column steel plate has to be transported manually, if the weight is increased as described above, the workability becomes very poor. Moreover, there is a problem that when a heavy object is transported manually, the danger increases.

しかし、上記第1実施形態のように、柱用囲い鋼板7を複数に分割して軸方向長さを覆うようにしているので、一つひとつの柱用囲い鋼板7の重量はそれほど大きくはならず、人手で運搬するとしても、作業性をそれほど損なうものではないし、安全性も維持できる。
しかも、上記したように個々の柱用囲い鋼板7は、一対の囲い部材9,10に分割されているので、それらの運搬性がさらによくなる。
However, as in the first embodiment, since the column enclosing steel plate 7 is divided into a plurality of portions so as to cover the axial length, the weight of each column enclosing steel plate 7 is not so large. Even if it is transported manually, workability is not so much impaired and safety can be maintained.
In addition, as described above, each of the column surrounding steel plates 7 is divided into the pair of surrounding members 9 and 10, so that their transportability is further improved.

一方、上記交差部を囲む交差部用囲い鋼板8は、図4に示すように囲い部材11,12からなる。これら囲い部材11,12は、それぞれ上記柱1及び梁6,6の前面に平行に配置される平行部11a,12aと、これらに直交する直交部11b,12bと、これら直交部11b,12bに直交して連続する取り付け部11c,12cとからなる。そして、これら囲い部材11,12を、上記平行部11a,12aの先端を重ね合わせるとともに、柱1及び梁6,6の前面から所定の間隔を保って配置し、上記取り付け部11c,12cを、後で説明する止めボルト15によって梁6,6の表面に固定するようにしている。
なお、この交差部用囲い鋼板8も一対の囲い部材11,12で構成することによって、各部材を小型軽量化できるメリットがある。
On the other hand, the crossing portion surrounding steel plate 8 surrounding the crossing portion is composed of the surrounding members 11 and 12, as shown in FIG. These enclosure members 11 and 12 are respectively connected to the parallel portions 11a and 12a arranged in parallel to the front surfaces of the column 1 and the beams 6 and 6, orthogonal portions 11b and 12b orthogonal to them, and orthogonal portions 11b and 12b. It consists of attachment parts 11c and 12c which are orthogonally continuous. And these enclosure members 11 and 12 are arranged at a predetermined distance from the front surfaces of the pillar 1 and the beams 6 and 6 while overlapping the tips of the parallel portions 11a and 12a, and the mounting portions 11c and 12c are It fixes to the surface of the beams 6 and 6 with the stop bolt 15 demonstrated later.
In addition, there is a merit that each member can be reduced in size and weight by configuring the crossing portion surrounding steel plate 8 with the pair of surrounding members 11 and 12.

なお、この第1実施形態では、上記平行部11b、12bが、交差部用鋼板のうち、柱用鋼板と、この柱用鋼板に一体に設けた梁用延伸部と兼ねている。すなわち、平行部11b、12bのうち柱1に対向する部分が柱用囲い鋼板に相当し、梁6,6に対向する部分が梁用延伸部である。
また、この交差部用囲い鋼板8の表面にも上記帯状シート3を接着して、囲い部材11,12を連結するとともに、両部材11,12が開かないようにしている。そして、上記取り付け部11c,12cは、上記接着シート3上に設けた板座金16を介して挿入されるボルト15によって梁6,6に固定される。
In addition, in this 1st Embodiment, the said parallel parts 11b and 12b serve as the extending | stretching part for the beam provided integrally in the steel plate for pillars, and this steel plate for pillars among the steel plates for crossing. That is, a portion of the parallel portions 11b and 12b that faces the column 1 corresponds to a column-enclosed steel plate, and a portion that faces the beams 6 and 6 is a beam extending portion.
In addition, the belt-like sheet 3 is bonded to the surface of the cross-section enclosure steel plate 8 to connect the enclosure members 11 and 12 and prevent the members 11 and 12 from opening. The attachment portions 11c and 12c are fixed to the beams 6 and 6 by bolts 15 inserted through plate washers 16 provided on the adhesive sheet 3.

上記のように柱1の前面に所定の間隔を保って配置した柱用囲い鋼板7と、交差部用囲い鋼板8の空間内には、柱1の軸方向に沿った2本の軸方向筋5を配置しているが、この軸方向筋5の本数は2本に限らず、多ければ多いほど強度は高くなる。また、上記軸方向筋5は、図4に示すように、柱用鋼板7及び交差部用囲い鋼板8と柱1の前面との間に位置させるが、図2に示すように、床スラブ17がある場合には、複数の階層の床スラブ17を貫通させることができる。これにより、柱1は複数層にわたって、大きな曲げ耐力を得ることになる。
さらに、上記囲い鋼板7,8と柱1及び梁6の表面との間隔内にグラウト材4を充填するが、柱1及び梁6の表面であってグラウト材4の充填空間に対応する面には、予め複数のアンカーボルト18を所定の間隔を保って打ち込んでおく。このアンカーボルト18によって、グラウト材4と柱1及び梁6表面との密着性を高め、柱1及び上記交差部の強度を保つことができる。
As described above, two axial streaks along the axial direction of the column 1 are provided in the space between the column surrounding steel plate 7 arranged on the front surface of the column 1 with a predetermined interval and the enclosure surrounding steel plate 8. However, the number of the axial streaks 5 is not limited to two, and the strength increases as the number increases. Further, as shown in FIG. 4, the axial streak 5 is positioned between the column steel plate 7 and the crossing enclosure steel plate 8 and the front surface of the column 1, but as shown in FIG. 2, the floor slab 17. If there is, a plurality of floor slabs 17 can be penetrated. Thereby, the pillar 1 obtains a large bending strength over a plurality of layers.
Further, the grout material 4 is filled in the space between the surrounding steel plates 7 and 8 and the surfaces of the pillar 1 and the beam 6, and the surface of the pillar 1 and the beam 6 is a surface corresponding to the filling space of the grout material 4. In advance, a plurality of anchor bolts 18 are driven at predetermined intervals. With this anchor bolt 18, the adhesion between the grout material 4 and the surfaces of the pillar 1 and the beam 6 can be improved, and the strength of the pillar 1 and the intersection can be maintained.

以上のようにした第1実施形態の補強構造によれば、柱の前面だけを補強しているので、従来のように柱の全面を補強するものに比べて、強度が多少落ちることは否めない。しかし、この第1実施形態では、上記柱の補強面に連続する梁6との交差部も同時に補強でき、柱1が補強された梁6と一体化するので、補強目的を十分に達成することができる。
また、建造物には複数の柱が存在するが、それら柱の機能は全て同じとはいえず、大きな荷重を支えるものもあれば、小さな荷重を支えるものもある。従って、例えば、大きな荷重を支える柱を中心にして、それらの補強本数を多くすれば、たとえ1本の柱の強度が多少劣ったとしても、建造物全体の補強効果は十分に得られる。
According to the reinforcing structure of the first embodiment as described above, since only the front surface of the pillar is reinforced, it is undeniable that the strength is slightly reduced as compared with the conventional structure in which the entire surface of the pillar is reinforced. . However, in this first embodiment, the intersection with the beam 6 continuing to the reinforcing surface of the column can be simultaneously reinforced, and the column 1 is integrated with the reinforced beam 6, so that the purpose of reinforcement is sufficiently achieved. Can do.
In addition, there are multiple pillars in a building, but the functions of these pillars are not all the same. Some of them support large loads and others support small loads. Therefore, for example, if the number of reinforcements is increased around a column supporting a large load, even if the strength of one column is somewhat inferior, the reinforcement effect of the entire building can be sufficiently obtained.

しかも、従来のように柱の全面を補強する場合でも、1本の柱だけの補強で足りることはほとんどなく、常に複数本の柱を補強しなければならないのが実情であり、そこにおけるグラウト材の全体の使用量もかなり多くなる。   Moreover, even when reinforcing the entire surface of a pillar as in the past, it is rarely necessary to reinforce only one pillar, and it is a fact that it is necessary to always reinforce a plurality of pillars. The overall usage of will be considerably higher.

一方、本願発明の補強構造でも、上記のように補強すべき柱の本数を増やしたとき、それだけグラウト材の使用量も増えるが、従来と同等な補強効果が得られる範囲であれば、グラウト材の使用量を少なくできるが、このことは実験により明らかであった。
そして、グラウト材は通常かなり高価なので、上記のようにグラウト材の使用量を少しでも節約できれば、補強工事全体としては大幅なコストダウンにつながる。
また、当然のことであるが、柱用囲い鋼板7の数も少なくできるので、それもコストダウンに役立つことになる。
On the other hand, even in the reinforcing structure of the present invention, when the number of pillars to be reinforced is increased as described above, the amount of grout used increases accordingly, but if the reinforcing effect equivalent to the conventional one is obtained, the grout material The amount used can be reduced, but this has been clarified by experiments.
And since grout materials are usually quite expensive, if the amount of grout material used can be saved as much as described above, the overall cost of the reinforcement work will be greatly reduced.
As a matter of course, the number of the column surrounding steel plates 7 can be reduced, which also helps to reduce the cost.

さらに、この第1実施形態では、柱用囲い鋼板7と交差部用囲い鋼板8とを同一面側に設けたので、施工は同一方面からだけで足りる。このように、同一方面から施工できるので、補強工事の施工性も上がり、工期も短くできるというメリットもある。   Furthermore, in this 1st Embodiment, since the enclosure steel plate 7 for pillars and the enclosure steel plate 8 for cross | intersection parts were provided in the same surface side, construction is sufficient only from the same direction. Thus, since it can construct from the same direction, there also exists a merit that the workability of a reinforcement construction improves and a construction period can also be shortened.

上記第1実施形態では、補強工事を施す柱1の前面と梁6,6の前面とが同一平面の場合であるが、柱1と、梁6,6とが同一平面でない場合についても、図5に示す第2実施形態のように、交差部用囲い鋼板19の形状が異なる以外は上記第1実施形態と同様の構成で、上記第1実施形態と同様の補強効果が得られる。   In the first embodiment, the front surface of the pillar 1 to be reinforced and the front surfaces of the beams 6 and 6 are on the same plane, but the case where the pillar 1 and the beams 6 and 6 are not on the same plane is also shown in FIG. As in the second embodiment shown in FIG. 5, the same reinforcing effect as in the first embodiment can be obtained with the same configuration as that in the first embodiment except that the shape of the crossing surrounding steel plate 19 is different.

この第2実施形態の交差部用囲い鋼板19は、一対の囲い部材20,21とからなる。これらの囲い部材20,21は、図5に示すように柱1の前面に平行に配置される平行部20a,21aと、これに連続して直交する直交部20b、21bとを備え、これら平行部20a,21a及び直交部20b,21bとで交差部における柱用囲い鋼板を構成し、その外側には、梁6に平行に配置される梁用延伸部20c,21cを備えている。そして、この梁用延伸部20c、21cには、それぞれ直交部20d,21dを介して取り付け部20e,21eを設けている。   The cross-section enclosure steel plate 19 according to the second embodiment includes a pair of enclosure members 20 and 21. These enclosure members 20 and 21 are provided with parallel portions 20a and 21a arranged in parallel to the front surface of the pillar 1, as shown in FIG. The portion 20a, 21a and the orthogonal portion 20b, 21b constitute a column-enclosed steel plate at the intersection, and are provided with beam extending portions 20c, 21c arranged parallel to the beam 6 on the outside thereof. The beam extending portions 20c and 21c are provided with attachment portions 20e and 21e via orthogonal portions 20d and 21d, respectively.

上記のように、交差部用囲い鋼板19の軸方向に直交する断面形状を階段状とすることによって、上記取り付け部20e,21eを止めボルト15で梁6,6に固定したとき、交差部用囲い鋼板19が柱1と梁6とのそれぞれに対して所定の間隔を保持することになる。但し、この第2実施形態においても、上記柱1に対向する平行部20a,21aと梁用延伸部20c,21cとを同一平面とし、交差部用囲い鋼板19の断面を階段状ではなく、略矩形にしてもよい。   As described above, when the mounting portions 20e and 21e are fixed to the beams 6 and 6 with the set bolts 15 by making the cross-sectional shape orthogonal to the axial direction of the crossing enclosure steel plate 19 into a step shape, The surrounding steel plate 19 maintains a predetermined interval with respect to each of the column 1 and the beam 6. However, also in the second embodiment, the parallel portions 20a, 21a facing the pillar 1 and the beam extending portions 20c, 21c are set to the same plane, and the cross section of the cross-section surrounding steel plate 19 is not stepped, but substantially It may be rectangular.

なお、この第2実施形態においても、交差部以外の柱1の前面は、図3に示す第1実施形態と同様に柱用囲い鋼板7によって囲まれる。
そして、この第2実施形態においても、上記柱用囲い鋼板7と交差部用囲い鋼板19の外表面には帯状シート3を貼り付けるとともに、内側にはグラウト材4を充填して、柱1の前面とグラウト材とを一体化する。また、グラウト材4内には、軸方向筋5を設けて柱1の曲げ耐力を向上させるとともに、アンカーボルト18を設けて、グラウト材4の結合力を高めることができる。
In the second embodiment as well, the front surface of the pillar 1 other than the intersection is surrounded by the pillar enclosing steel plate 7 as in the first embodiment shown in FIG.
And also in this 2nd Embodiment, while sticking the strip | belt-shaped sheet | seat 3 on the outer surface of the said fence steel plate 7 for pillars and the enclosure steel plate 19 for cross | intersections, the inside is filled with the grout material 4, Integrate the front and grout material. Further, in the grout material 4, an axial streak 5 can be provided to improve the bending strength of the column 1, and an anchor bolt 18 can be provided to increase the bonding strength of the grout material 4.

1 柱
3 帯状シート
4 グラウト材
5 軸方向筋
6 梁
7 柱用囲い鋼板
8 交差部用囲い鋼板
9,10 囲い部材
11,12 囲い部材
13 タイバー
14 ナット
18 アンカーボルト
19 交差部用囲い鋼板
20 囲い部材
20c 梁用延伸部
21 囲い部材
21c 梁用延伸部
DESCRIPTION OF SYMBOLS 1 Column 3 Band-shaped sheet 4 Grout material 5 Axial reinforcement 6 Beam 7 Column enclosure steel plate 8 Crossing enclosure steel plate 9, 10 Enclosure member 11, 12 Enclosure member 13 Tie bar 14 Nut 18 Anchor bolt 19 Enclosure enclosure steel plate 20 Member 20c Beam extension part 21 Enclosure member 21c Beam extension part

Claims (3)

  1. 柱及びこの柱と交差する梁を備えた建造物の補強構造であって、断面が四角形の柱の特定の側面を所定の間隔を保持して柱用囲い鋼板で囲うとともに、柱と梁との交差部は、柱用囲い鋼板に梁用延伸部を一体に設けた交差部用囲い鋼板で、上記柱の表面と、柱に連続する梁の表面とを所定の間隔を保持して囲う一方、これら柱用囲い鋼板と交差部用囲い鋼板とを特定の柱の同一側面側に配置させ、上記囲い鋼板と上記柱の表面及び梁の表面との間にグラウト材を注入して柱と梁とを一体的に囲み、上記グラウト材中に、上記柱の軸方向に沿った軸方向筋を複数配置した建造物の補強構造。   Reinforcement structure of a building including a pillar and a beam intersecting with the pillar, and a specific side surface of the pillar having a quadrangular cross section is surrounded by a steel plate for the pillar while maintaining a predetermined interval. The intersection is an enclosure steel plate for crossing in which a beam extension part is provided integrally with the column enclosure steel plate, while enclosing the surface of the column and the surface of the beam continuous to the column at a predetermined interval, These column steel plates and crossing steel plates are arranged on the same side of a specific column, and a grout material is injected between the enclosure steel plate and the surface of the column and the surface of the beam to And a plurality of axial streaks along the axial direction of the pillar in the grout material.
  2. 上記囲い鋼板で囲われた柱及び梁の表面には、複数のアンカー部材を突出させた請求項1に記載の建造物の補強構造。   The reinforcing structure for a building according to claim 1, wherein a plurality of anchor members protrude from the surfaces of the columns and beams surrounded by the surrounding steel plates.
  3. 上記囲い鋼板を、スライド可能に組み合わせた一対の鋼板部材で構成するとともに、上記一対の鋼板部材の対向面を貫通し、その両端をそれぞれ、各対向面から外部に突出させるタイバーを設け、このタイバーの突出部に止め部材を取り付けることによって上記対向面間距離を保持する請求項1又は2に記載の建造物の補強構造。   The tie bar is provided with a pair of steel plate members that are slidably combined with the surrounding steel plate, and provided with tie bars that penetrate the opposing surfaces of the pair of steel plate members and project both ends of the steel plates from the opposing surfaces to the outside. The reinforcing structure for a building according to claim 1 or 2, wherein a distance between the opposing surfaces is maintained by attaching a stop member to the protruding portion of the building.
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JP2016125313A (en) * 2015-01-08 2016-07-11 榮次 槇谷 Concrete structure reinforcement method
JP2016183488A (en) * 2015-03-26 2016-10-20 一般社団法人 レトロフィットジャパン協会 Reinforcing structure for existing column
JP6016313B1 (en) * 2015-07-13 2016-10-26 槇谷 榮次 Concrete structure and concrete structure construction method
JP6020940B1 (en) * 2015-07-15 2016-11-02 一般社団法人 レトロフィットジャパン協会 Reinforcement structure of building
JP2016204844A (en) * 2015-04-15 2016-12-08 一般社団法人 レトロフィットジャパン協会 Reinforcement structure of existing column
JP2016205130A (en) * 2016-07-22 2016-12-08 一般社団法人 レトロフィットジャパン協会 Reinforcement structure of existing column
JP2016211295A (en) * 2015-05-12 2016-12-15 一般社団法人 レトロフィットジャパン協会 Reinforcement structure of building structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0972108A (en) * 1995-09-05 1997-03-18 Shimizu Corp Reinforcing method of existing column body
JPH10259666A (en) * 1997-03-18 1998-09-29 Kumagai Gumi Co Ltd Base isolation method for existing ferro-concrete structure including columnar structural member
JP2006089983A (en) * 2004-09-22 2006-04-06 Nishimatsu Constr Co Ltd Aseismatic reinforcement structure of wing wall column
JP2007063936A (en) * 2005-09-02 2007-03-15 Eiji Makitani Reinforcing structure of column with wall
JP2007132131A (en) * 2005-11-11 2007-05-31 Building Research Institute Reinforcing structure and reinforcing method for concrete building

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0972108A (en) * 1995-09-05 1997-03-18 Shimizu Corp Reinforcing method of existing column body
JPH10259666A (en) * 1997-03-18 1998-09-29 Kumagai Gumi Co Ltd Base isolation method for existing ferro-concrete structure including columnar structural member
JP2006089983A (en) * 2004-09-22 2006-04-06 Nishimatsu Constr Co Ltd Aseismatic reinforcement structure of wing wall column
JP2007063936A (en) * 2005-09-02 2007-03-15 Eiji Makitani Reinforcing structure of column with wall
JP2007132131A (en) * 2005-11-11 2007-05-31 Building Research Institute Reinforcing structure and reinforcing method for concrete building

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JP2015045127A (en) * 2013-08-27 2015-03-12 株式会社大林組 Earthquake strengthening structure and method for existing building frame
JP2015063890A (en) * 2013-08-27 2015-04-09 一般社団法人 レトロフィットジャパン協会 Reinforcing structure of concrete column
JP2015086690A (en) * 2013-09-25 2015-05-07 一般社団法人 レトロフィットジャパン協会 Reinforcing structure of concrete column
JP2015143465A (en) * 2013-12-27 2015-08-06 一般社団法人 レトロフィットジャパン協会 Reinforcement structure for building
JP2015140561A (en) * 2014-01-28 2015-08-03 一般社団法人 レトロフィットジャパン協会 Reinforcement structure of building structure
JP5725488B1 (en) * 2014-07-31 2015-05-27 一般社団法人 レトロフィットジャパン協会 Concrete column reinforcement structure
JP2016061106A (en) * 2014-09-19 2016-04-25 一般社団法人 レトロフィットジャパン協会 Reinforcing structure for building
JP5843269B1 (en) * 2014-09-19 2016-01-13 一般社団法人 レトロフィットジャパン協会 Reinforcement structure of building
JP2016069886A (en) * 2014-09-30 2016-05-09 一般社団法人 レトロフィットジャパン協会 Reinforcement structure for building
JP2016102290A (en) * 2014-11-07 2016-06-02 一般社団法人 レトロフィットジャパン協会 Reinforcement structure for building
JP2016108806A (en) * 2014-12-05 2016-06-20 一般社団法人 レトロフィットジャパン協会 Reinforcement structure for building
JP2016125313A (en) * 2015-01-08 2016-07-11 榮次 槇谷 Concrete structure reinforcement method
JP2016183488A (en) * 2015-03-26 2016-10-20 一般社団法人 レトロフィットジャパン協会 Reinforcing structure for existing column
JP2016204844A (en) * 2015-04-15 2016-12-08 一般社団法人 レトロフィットジャパン協会 Reinforcement structure of existing column
JP2016211295A (en) * 2015-05-12 2016-12-15 一般社団法人 レトロフィットジャパン協会 Reinforcement structure of building structure
JP5869717B1 (en) * 2015-06-29 2016-02-24 栄次 槇谷 Existing concrete structure reinforcement structure
JP6016313B1 (en) * 2015-07-13 2016-10-26 槇谷 榮次 Concrete structure and concrete structure construction method
JP6020940B1 (en) * 2015-07-15 2016-11-02 一般社団法人 レトロフィットジャパン協会 Reinforcement structure of building
KR101611820B1 (en) * 2015-10-08 2016-04-12 문종기 Construction Method for Building Seismic Reinforcement and Building Remodeling Construction Method
WO2017061719A1 (en) * 2015-10-08 2017-04-13 문종기 Construction method for seismically retrofitting and remodeling building
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