JP2010203060A - Aseismatic strengthening method and aseismatic strengthening structure - Google Patents
Aseismatic strengthening method and aseismatic strengthening structure Download PDFInfo
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Abstract
Description
本発明は、既存躯体を耐震補強する方法及び構造に関する。 The present invention relates to a method and structure for seismic reinforcement of an existing housing.
従来より、鉄筋コンクリート造又は鉄骨鉄筋コンクリート造の既存建物において、柱や梁の外周に補強部材を取り付けたり、建物と一体に補強構造を構築したりすることにより耐震補強する方法が用いられている。このような方法として、例えば、特許文献１には、既存柱の外周に鋼管を巻き付け、鋼管と既存柱の間にグラウトを充填することで、既存柱と鋼管とを一体化させて耐震補強する方法が記載されている。また、特許文献２には、既存建物の柱又は梁の外面に沿うようにコンクリートからなる補強構造を構築し、アンカーボルトにより既存建物と補強構造とを一体化させて耐震補強する方法が記載されている。 Conventionally, in existing buildings made of reinforced concrete or steel-framed reinforced concrete, methods of seismic reinforcement have been used by attaching reinforcing members to the outer periphery of columns and beams or constructing a reinforcing structure integrally with the building. As such a method, for example, in Patent Document 1, a steel pipe is wound around the outer periphery of an existing column, and grout is filled between the steel pipe and the existing column, so that the existing column and the steel pipe are integrated and subjected to seismic reinforcement. A method is described. Patent Document 2 describes a method of constructing a reinforcing structure made of concrete along the outer surface of a pillar or beam of an existing building, and integrating the existing building and the reinforcing structure with an anchor bolt to perform seismic reinforcement. ing.
ここで、特許文献１記載の方法では、既存柱の外周に鋼管を巻き付けなければならず、壁が一体に構築されている既存柱にはこの方法を適用できない。また、特許文献２記載の方法では、大掛かりな構造体を構築しなければならず、また、構造体と既存躯体との間で確実に荷重が伝達されるように、アンカーボルトを多数打設する必要があり、施工に非常に手間がかかる。 Here, in the method of patent document 1, a steel pipe must be wound around the outer periphery of an existing column, and this method cannot be applied to an existing column in which walls are constructed integrally. In the method described in Patent Document 2, a large-scale structure must be constructed, and a large number of anchor bolts are driven so that a load is reliably transmitted between the structure and the existing housing. It is necessary and construction is very time-consuming.
本発明は、上記の問題に鑑みなされたものであり、その目的は、手間がかからず、壁が一体に構築された柱であっても適用可能な耐震補強方法を提供することである。 The present invention has been made in view of the above problems, and an object of the present invention is to provide a seismic reinforcement method that can be applied even to a pillar that is not time-consuming and has an integrally constructed wall.
本発明の既存躯体の補強構造は、コンクリート造の既存躯体を鋼材によって補強する既存躯体の補強構造であって、前記既存躯体には溝が形成され、前記鋼材は、その縁部が前記溝に収容されるように、前記既存躯体に取り付けられていると共に、前記既存躯体に打設されたアンカーに設けられた拘束部材により拘束されていることを特徴とする。上記の既存躯体の補強構造において、前記アンカーはケミカルアンカーであってもよい。
また、本発明の既存躯体の補強構造は、コンクリート造の既存躯体を鋼材によって補強する既存躯体の補強構造であって、前記既存躯体には溝が形成され、前記鋼材は、その縁部が前記溝に収容されるように、前記既存躯体に取り付けられていると共に、前記既存躯体を貫通する棒状部材に設けられた拘束部材により拘束されていることを特徴とする。
The reinforcement structure of the existing frame of the present invention is a reinforcement structure of an existing frame that reinforces a concrete existing frame with a steel material, and a groove is formed in the existing frame, and the edge of the steel material is formed in the groove. It is attached to the existing housing so as to be accommodated, and is restrained by a restraining member provided on an anchor placed in the existing housing. In the above-described reinforcing structure of the existing frame, the anchor may be a chemical anchor.
Further, the reinforcing structure of the existing casing of the present invention is a reinforcing structure of the existing casing that reinforces the existing casing made of concrete with a steel material, and a groove is formed in the existing casing, and the edge portion of the steel material has the above-described edge. It is attached to the said existing housing so that it may be accommodated in a groove | channel, and is restrained by the restraint member provided in the rod-shaped member which penetrates the said existing housing.
上記の既存躯体の補強構造において、前記鋼材は溝形鋼であり、前記溝は平行に対となるように形成され、前記鋼材の屈曲された両縁部がこの対となった溝に収容されるように取り付けられていてもよい。
また、前記既存躯体に形成された前記溝内に充填され、硬化した充填材を備えてもよい。また、前記鋼材は、前記既存躯体の外部側の面に取り付けられていてもよく、前記既存躯体は、既存建物の柱又は梁であって、前記鋼材は、前記柱又は梁の中央部に取り付けられていてもよい。
In the reinforcing structure of the existing frame, the steel material is channel steel, the grooves are formed in parallel to form a pair, and the bent edges of the steel material are accommodated in the pair of grooves. It may be attached so that.
Moreover, you may provide the filling material with which the said groove | channel formed in the said existing housing was filled and hardened | cured. Further, the steel material may be attached to a surface on the outside of the existing housing, and the existing housing is a column or beam of an existing building, and the steel material is attached to a central portion of the column or beam. It may be done.
また、本発明の既存躯体の補強方法は、コンクリート造の既存躯体の補強方法であって、 前記既存躯体に溝を形成し、鋼材を、その縁部が前記溝に収容されるように、前記既存躯体に取り付けると共に、前記既存躯体に打設したアンカーに設けた拘束部材により拘束することを特徴とする。
また、本発明の既存躯体の補強方法は、コンクリート造の既存躯体の補強方法であって、 前記既存躯体に溝を形成し、鋼材を、その縁部が前記溝に収容されるように、前記既存躯体に取り付けると共に、前記既存躯体を貫通する棒状部材に設けた拘束部材により拘束することを特徴とする。
Further, the reinforcing method of the existing frame of the present invention is a method for reinforcing the existing frame made of concrete, wherein a groove is formed in the existing frame and the steel material is accommodated in the groove so that the edge thereof is accommodated in the groove. It attaches to the existing housing, and it restrains by the restraint member provided in the anchor casted in the said existing housing.
Further, the reinforcing method of the existing frame of the present invention is a method for reinforcing the existing frame made of concrete, wherein a groove is formed in the existing frame and the steel material is accommodated in the groove so that the edge thereof is accommodated in the groove. It attaches to the existing housing, and it restrains by the restraint member provided in the rod-shaped member which penetrates the said existing housing.
本発明によれば、既存躯体に形成された溝を介して既存躯体に作用する地震力が鋼材に伝達され、鋼材がこの地震力を一部負担するため、既存躯体を耐震補強できる。かかる構成により、既存躯体に形成した溝に鋼材を取り付けるのみでよいため、施工の手間を削減でき、また、壁が一体に構築された柱であっても適用することができる。 According to the present invention, the seismic force acting on the existing housing is transmitted to the steel material through the groove formed in the existing housing, and the steel material bears a part of this seismic force, so that the existing housing can be seismically reinforced. With this configuration, since it is only necessary to attach the steel material to the groove formed in the existing housing, it is possible to reduce the labor of construction, and it can be applied even to a column in which the wall is integrally constructed.
以下、本発明の耐震補強構造の一実施形態を図面を参照しながら詳細に説明する。
図１（Ａ）は、本発明の耐震補強構造１０により補強された既存柱１を示す正面図、（Ｂ）は（Ａ）におけるＩ−Ｉ断面図である。同図に示すように、本実施形態の耐震補強構造１０は、鉄筋コンクリート造の既存柱１の外周側の面に、地震時に発生すると予想されるせん断ひび割れと交差するように（すなわち、既存柱１の中央部に）、複数の溝形鋼２０が取り付けられてなる。なお、本実施形態では鉄筋コンクリート造の既存柱１を耐震補強する場合について説明するが、本発明は、鉄骨コンクリート造、鉄骨鉄筋コンクリート造の躯体を耐震補強する場合であっても適用できる。
Hereinafter, an embodiment of the earthquake-proof reinforcement structure of the present invention will be described in detail with reference to the drawings.
FIG. 1A is a front view showing an existing column 1 reinforced by the seismic reinforcement structure 10 of the present invention, and FIG. 1B is a cross-sectional view taken along line II in FIG. As shown in the figure, the seismic reinforcing structure 10 of the present embodiment crosses the surface of the outer peripheral side of the existing column 1 made of reinforced concrete so as to intersect with shear cracks expected to occur during an earthquake (that is, the existing column 1 A plurality of channel steels 20 are attached to the central portion of the steel plate. In addition, although this embodiment demonstrates the case where the existing pillar 1 of a reinforced concrete structure is seismically strengthened, this invention is applicable even when it is a case where a steel-frame concrete structure and a steel-framed reinforced concrete structure are seismically strengthened.
図１に示すように、既存柱１には、複数対の互いに平行な溝２１が上下方向に延びるように形成されている。そして、対となる溝２１は、その間隔が溝形鋼２０のフランジ２０Ａの幅と略等しくなるように形成されている。また、既存柱１の対となる溝２１の間にはケミカルアンカー３０が打設されている。 As shown in FIG. 1, a plurality of pairs of mutually parallel grooves 21 are formed in the existing pillar 1 so as to extend in the vertical direction. And the groove | channel 21 used as a pair is formed so that the space | interval may become substantially equal to the width | variety of the flange 20A of the channel steel 20. FIG. Further, a chemical anchor 30 is driven between the grooves 21 that form a pair of the existing pillars 1.
各溝形鋼２０のウエブ２０Ｂ面には孔２０Ｃが形成されており、ケミカルアンカー３０は、この孔２０Ｃを通して表面に突出している。これら溝形鋼２０は、既存柱１に形成された対となる溝２１に各フランジ２０Ａの縁部が収容されるとともに、孔２０Ｃから突出したケミカルアンカー３０にナット３１が締め付けられることにより既存柱１に固定されている。 A hole 20C is formed in the surface of the web 20B of each channel steel 20, and the chemical anchor 30 protrudes to the surface through the hole 20C. These channel steels 20 are configured such that the edge of each flange 20A is accommodated in a pair of grooves 21 formed in the existing column 1, and the nut 31 is tightened to the chemical anchor 30 protruding from the hole 20C. 1 is fixed.
各溝形鋼２０と既存柱１の表面との間の隙間及び既存柱１の溝２１の内部にはグラウト２２が充填され、固化している。 Grouts 22 are filled and solidified in the gaps between the channel steels 20 and the surfaces of the existing pillars 1 and in the grooves 21 of the existing pillars 1.
かかる耐震補強構造１０が取り付けられた既存柱１にせん断力が作用すると、溝形鋼２０が既存柱１に形成された溝２１に収容されるように取り付けられ、さらに既存柱１と溝形鋼２０の間にグラウト２２が充填されているため、溝形鋼２０との間で水平方向の応力が伝達されることとなる。このため、溝形鋼２０が既存柱１に作用するせん断力の一部を負担することとなり、既存柱１をせん断補強することができる。 When a shearing force is applied to the existing pillar 1 to which the seismic reinforcement structure 10 is attached, the groove steel 20 is attached so as to be accommodated in the groove 21 formed in the existing pillar 1, and the existing pillar 1 and the groove steel are further attached. Since the grout 22 is filled in between 20, horizontal stress is transmitted between the grooved steel 20. For this reason, the channel steel 20 bears a part of the shearing force acting on the existing column 1, and the existing column 1 can be reinforced by shearing.
以下、耐震補強構造１０の構築方法を図２〜図４を参照して説明する。なお、図２〜図４において、（Ａ）は既存柱１の正面図、（Ｂ）は（Ａ）におけるＩ−Ｉ断面図である。 既存柱１を耐震補強するには、まず、既存柱１の外周面に取り付けられている仕上げ材を取り除く。そして、図２に示すように、既存柱１の表面に、せん断力が作用した際に発生すると予想される破壊面と交差するように複数の対となる溝２１をカッターにより形成する。そして、これらの対となる溝２１の間にケミカルアンカー３０を打設する。 Hereinafter, the construction method of the earthquake-proof reinforcement structure 10 is demonstrated with reference to FIGS. 2 to 4, (A) is a front view of the existing pillar 1, and (B) is a cross-sectional view taken along the line II in (A). In order to seismically reinforce the existing column 1, first, the finishing material attached to the outer peripheral surface of the existing column 1 is removed. Then, as shown in FIG. 2, a plurality of pairs of grooves 21 are formed by a cutter so as to intersect the fracture surface that is expected to be generated when a shearing force is applied to the surface of the existing column 1. Then, a chemical anchor 30 is driven between the pair of grooves 21.
次に、図３に示すように、溝形鋼２０をケミカルアンカー３０が孔を挿通するとともに、既存柱１の対となる溝２１にフランジ２０Ａが夫々収容されるように配置する。そして、ケミカルアンカー３０にナット３１を締め付け、溝形鋼２０を既存柱１に固定する。 Next, as shown in FIG. 3, the channel steel 20 is disposed so that the chemical anchor 30 passes through the hole and the flanges 20 </ b> A are accommodated in the grooves 21 that form pairs with the existing pillar 1. Then, the nut 31 is fastened to the chemical anchor 30 to fix the channel steel 20 to the existing column 1.
次に、溝形鋼２０の下部を塞ぐように蓋材２４を取り付けるとともに、溝形鋼２０の外周にシール材２３を取り付ける。そして、図４に示すように、溝形鋼２０と既存柱１の間の隙間、及び、既存柱１の溝２１の内部にグラウト２２を充填する。充填したグラウト２２が硬化した後、蓋材２４を取り除くことで本実施形態の耐震補強構造の構築が完了する。 Next, the lid member 24 is attached so as to close the lower portion of the grooved steel 20, and the sealing material 23 is attached to the outer periphery of the grooved steel 20. Then, as shown in FIG. 4, a grout 22 is filled in the gap between the channel steel 20 and the existing column 1 and the inside of the groove 21 of the existing column 1. After the filled grout 22 is cured, the lid member 24 is removed to complete the construction of the seismic reinforcement structure of this embodiment.
以上説明したように、本実施形態によれば、溝形鋼２０を既存柱１の外部側の表面に取り付けることにより耐震補強しているため、この既存柱１と一体に壁や梁が構築されている場合であっても、耐震補強を行うことができる。 As described above, according to the present embodiment, since the seismic reinforcement is performed by attaching the grooved steel 20 to the outer surface of the existing column 1, a wall or a beam is constructed integrally with the existing column 1. Even if it is, seismic reinforcement can be performed.
また、既存柱１の表面に形成された溝２１に溝形鋼２０を取り付けることで耐震補強でき、構造体等を構築する必要がないため、施工の手間を削減できる。また、ケミカルアンカー３０は溝形鋼２０を既存柱１に固定するのみの働きをしている（すなわち、力の伝達を期待していない）ため、ケミカルアンカー３０の数が少なくて済み、さらに施工の手間を削減できる。
また、ケミカルアンカーは躯体を貫通しないように設けることができるので、既存躯体の片側（本実施形態では外部側）からのみで補強作業を行うことができる。
Moreover, since the seismic reinforcement can be carried out by attaching the grooved steel 20 to the groove 21 formed on the surface of the existing pillar 1, and it is not necessary to construct a structure or the like, the labor of construction can be reduced. In addition, since the chemical anchor 30 functions only to fix the channel steel 20 to the existing column 1 (that is, it does not expect to transmit force), the number of chemical anchors 30 can be reduced, and further construction is performed. Can be saved.
In addition, since the chemical anchor can be provided so as not to penetrate the casing, the reinforcement work can be performed only from one side (external side in the present embodiment) of the existing casing.
なお、本実施形態では、既存柱１を耐震補強する場合について説明したが、これと同様に、図５に示すように、既存梁２を耐震補強する場合や、壁やスラブなどの躯体を耐震補強する場合にも本発明を適用することができる。 In the present embodiment, the case where the existing column 1 is seismically reinforced is described. Similarly, as shown in FIG. 5, the existing beam 2 is seismically reinforced, and the walls and slabs are quake-proof. The present invention can also be applied to reinforcement.
また、本実施形態では、既存柱１の一面のみに溝形鋼２０を取り付ける場合について説明したが、これに限らず、図６に示すように、既存柱１の複数の面に溝形鋼２０を取り付けることとしてもよい。なお、同図に示すように、既存柱１の表裏面に溝形鋼２０を取り付ける場合には、ケミカルアンカー３０を用いず、既存柱１を貫通するロックボルト１３０により溝形鋼２０を固定することができる。 Moreover, in this embodiment, although the case where the grooved steel 20 was attached only to one surface of the existing pillar 1 was demonstrated, as shown in FIG. It is good also as attaching. In addition, as shown in the figure, when attaching the grooved steel 20 to the front and back surfaces of the existing column 1, the grooved steel 20 is fixed by the lock bolt 130 penetrating the existing column 1 without using the chemical anchor 30. be able to.
また、本実施形態では、既存柱１に溝形鋼２０を取り付けるものとしたが、これに限らず、図７（Ａ）に示すように、Ｈ型鋼１２０を用いたり、同図（Ｂ）に示すように、断面が半円弧状の鋼材２２０を用いたりしてもよく、要するに平行な一対の溝に、夫々、部材の一部が収容可能な形状の鋼材であれば、用いることができる。 Moreover, in this embodiment, although the grooved steel 20 was attached to the existing pillar 1, it is not restricted to this, As shown to FIG. 7 (A), as shown to FIG. As shown, a steel material 220 having a semicircular arc shape may be used. In short, any steel material can be used as long as a part of each member can be accommodated in a pair of parallel grooves.
１ 既存柱 ２ 既存梁
１０ 耐震補強構造 ２０ 溝形鋼
２０Ａ フランジ ２０Ｂ ウエブ
２１ 溝 ２２ グラウト
２３ シール材 ２４ 蓋材
３０ ケミカルアンカー ３１ ナット
１２０ Ｈ型鋼 １３０ ロックボルト
２２０ 鋼材
DESCRIPTION OF SYMBOLS 1 Existing pillar 2 Existing beam 10 Seismic reinforcement structure 20 Channel steel 20A Flange 20B Web 21 Groove 22 Grout 23 Seal material 24 Lid material 30 Chemical anchor 31 Nut 120 H-shaped steel 130 Rock bolt 220 Steel material
Claims (9)
前記既存躯体には溝が形成され、
前記鋼材は、その縁部が前記溝に収容されるように、前記既存躯体に取り付けられていると共に、前記既存躯体に打設されたアンカーに設けられた拘束部材により拘束されていることを特徴とする既存躯体の補強構造。 It is a reinforcement structure of an existing frame that reinforces an existing frame made of concrete with steel,
A groove is formed in the existing housing,
The steel material is attached to the existing housing so that the edge thereof is accommodated in the groove, and is restrained by a restraining member provided on an anchor placed in the existing housing. Reinforcement structure of the existing housing.
前記既存躯体には溝が形成され、
前記鋼材は、その縁部が前記溝に収容されるように、前記既存躯体に取り付けられていると共に、前記既存躯体を貫通する棒状部材に設けられた拘束部材により拘束されていることを特徴とする既存躯体の補強構造。 It is a reinforcement structure of an existing frame that reinforces an existing frame made of concrete with steel,
A groove is formed in the existing housing,
The steel material is attached to the existing housing so that the edge thereof is accommodated in the groove, and is restrained by a restraining member provided on a rod-like member that penetrates the existing housing. Reinforcing structure of existing housing.
前記鋼材は溝形鋼であり、前記溝は平行に対となるように形成され、
前記鋼材の屈曲された両縁部がこの対となった溝に収容されるように取り付けられていることを特徴とする既存躯体の補強構造。 A reinforcement structure for an existing housing according to any one of claims 1 to 3,
The steel material is channel steel, and the grooves are formed to be paired in parallel.
A reinforcing structure for an existing housing, wherein both bent edge portions of the steel material are attached so as to be accommodated in the paired grooves.
前記既存躯体に形成された前記溝内に充填され、硬化した充填材を備えることを特徴とする既存躯体の補強構造。 A reinforcement structure for an existing housing according to any one of claims 1 to 4,
A reinforcing structure for an existing casing, comprising a filler filled in the groove formed in the existing casing and cured.
前記鋼材は、前記既存躯体の外部側の面に取り付けられていることを特徴とする既存躯体の補強構造。 A reinforcing structure for an existing housing according to any one of claims 1 to 5,
The steel structure is attached to an external surface of the existing casing, and is a reinforcing structure of the existing casing.
前記既存躯体は、既存建物の柱又は梁であって、
前記鋼材は、前記柱又は梁の中央部に取り付けられていることを特徴とする既存躯体の補強構造。 A reinforcement structure for an existing housing according to any one of claims 1 to 6,
The existing frame is a pillar or beam of an existing building,
The steel structure is attached to a central portion of the column or beam, and is a reinforcing structure for an existing frame.
前記既存躯体に溝を形成し、
鋼材を、その縁部が前記溝に収容されるように、前記既存躯体に取り付けると共に、前記既存躯体に打設したアンカーに設けた拘束部材により拘束することを特徴とする既存躯体の補強方法。 A method for reinforcing an existing concrete structure,
Forming a groove in the existing housing;
A steel material is attached to the existing housing such that an edge thereof is accommodated in the groove, and is restrained by a restraining member provided on an anchor placed on the existing housing.
前記既存躯体に溝を形成し、
鋼材を、その縁部が前記溝に収容されるように、前記既存躯体に取り付けると共に、前記既存躯体を貫通する棒状部材に設けた拘束部材により拘束することを特徴とする既存躯体の補強方法。 A method for reinforcing an existing concrete structure,
Forming a groove in the existing housing;
A steel material is attached to the existing housing such that an edge thereof is accommodated in the groove, and is restrained by a restraining member provided on a rod-shaped member that penetrates the existing housing.
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| JP2009046746A JP2010203060A (en) | 2009-02-27 | 2009-02-27 | Aseismatic strengthening method and aseismatic strengthening structure |
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| JP2009046746A JP2010203060A (en) | 2009-02-27 | 2009-02-27 | Aseismatic strengthening method and aseismatic strengthening structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200126592A (en) * | 2019-04-30 | 2020-11-09 | 경기대학교 산학협력단 | Concrete Column Structures Reinforcing Method Using Reinforced Steel Plate |
| KR20200126671A (en) * | 2019-04-30 | 2020-11-09 | 경기대학교 산학협력단 | Concrete Column Structures Reinforcing Method Using Reinforced Steel Plate |
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| JPS5869965A (en) * | 1981-10-20 | 1983-04-26 | 株式会社熊谷組 | Reinforcement of existing reinforced concrete pillar |
| JP2001049874A (en) * | 1999-08-09 | 2001-02-20 | Kajima Corp | Earthquake-resistant reinforcing construction method and structure of existing structure |
| JP2002121905A (en) * | 2000-10-13 | 2002-04-26 | Kumagai Gumi Co Ltd | Reinforcing structure for column with wall of building |
| JP2005023657A (en) * | 2003-07-02 | 2005-01-27 | Ohbayashi Corp | Seismically strengthening method for reinforced concrete structure |
| JP2006226054A (en) * | 2005-02-21 | 2006-08-31 | Fujita Corp | Aseismic reinforcing method for existing reinforced concrete building with rigid frame structure |
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| JPS5869965A (en) * | 1981-10-20 | 1983-04-26 | 株式会社熊谷組 | Reinforcement of existing reinforced concrete pillar |
| JP2001049874A (en) * | 1999-08-09 | 2001-02-20 | Kajima Corp | Earthquake-resistant reinforcing construction method and structure of existing structure |
| JP2002121905A (en) * | 2000-10-13 | 2002-04-26 | Kumagai Gumi Co Ltd | Reinforcing structure for column with wall of building |
| JP2005023657A (en) * | 2003-07-02 | 2005-01-27 | Ohbayashi Corp | Seismically strengthening method for reinforced concrete structure |
| JP2006226054A (en) * | 2005-02-21 | 2006-08-31 | Fujita Corp | Aseismic reinforcing method for existing reinforced concrete building with rigid frame structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20200126592A (en) * | 2019-04-30 | 2020-11-09 | 경기대학교 산학협력단 | Concrete Column Structures Reinforcing Method Using Reinforced Steel Plate |
| KR20200126671A (en) * | 2019-04-30 | 2020-11-09 | 경기대학교 산학협력단 | Concrete Column Structures Reinforcing Method Using Reinforced Steel Plate |
| KR102285004B1 (en) | 2019-04-30 | 2021-08-02 | 경기대학교 산학협력단 | Concrete Column Structures Reinforcing Method Using Reinforced Steel Plate |
| KR102284999B1 (en) | 2019-04-30 | 2021-08-02 | 경기대학교 산학협력단 | Concrete Column Structures Reinforcing Method Using Reinforced Steel Plate |
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